./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.03.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.03.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 4996a252ab084c920e1b9a19c3119ce328d4cb97d6d45029062c9dac50449e19 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:14:41,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:14:41,269 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:14:41,274 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:14:41,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:14:41,309 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:14:41,310 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:14:41,310 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:14:41,311 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:14:41,314 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:14:41,315 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:14:41,315 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:14:41,316 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:14:41,317 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:14:41,317 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:14:41,318 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:14:41,318 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:14:41,318 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:14:41,319 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:14:41,319 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:14:41,320 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:14:41,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:14:41,321 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:14:41,321 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:14:41,321 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:14:41,322 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:14:41,322 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:14:41,322 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:14:41,323 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:14:41,323 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:14:41,323 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:14:41,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:14:41,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:14:41,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:14:41,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:14:41,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:14:41,326 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:14:41,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:14:41,327 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:14:41,327 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:14:41,327 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:14:41,328 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:14:41,328 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4996a252ab084c920e1b9a19c3119ce328d4cb97d6d45029062c9dac50449e19 [2024-10-24 01:14:41,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:14:41,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:14:41,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:14:41,605 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:14:41,605 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:14:41,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.03.cil-2.c [2024-10-24 01:14:43,095 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:14:43,327 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:14:43,328 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.03.cil-2.c [2024-10-24 01:14:43,344 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c45e5f56/207880386bc9425188077c35114f061b/FLAG2454d7d5f [2024-10-24 01:14:43,669 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c45e5f56/207880386bc9425188077c35114f061b [2024-10-24 01:14:43,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:14:43,673 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:14:43,674 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:14:43,674 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:14:43,681 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:14:43,682 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:14:43" (1/1) ... [2024-10-24 01:14:43,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4d8285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:14:43, skipping insertion in model container [2024-10-24 01:14:43,685 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:14:43" (1/1) ... [2024-10-24 01:14:43,724 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:14:43,891 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/systemc/token_ring.03.cil-2.c[671,684] [2024-10-24 01:14:43,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:14:43,985 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:14:43,999 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/systemc/token_ring.03.cil-2.c[671,684] [2024-10-24 01:14:44,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:14:44,049 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:14:44,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:14:44 WrapperNode [2024-10-24 01:14:44,049 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:14:44,050 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:14:44,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:14:44,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:14:44,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:14:44" (1/1) ... [2024-10-24 01:14:44,064 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:14:44" (1/1) ... [2024-10-24 01:14:44,089 INFO L138 Inliner]: procedures = 34, calls = 40, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 339 [2024-10-24 01:14:44,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:14:44,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:14:44,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:14:44,092 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:14:44,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:14:44" (1/1) ... [2024-10-24 01:14:44,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:14:44" (1/1) ... [2024-10-24 01:14:44,104 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:14:44" (1/1) ... [2024-10-24 01:14:44,128 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]. [2024-10-24 01:14:44,129 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:14:44" (1/1) ... [2024-10-24 01:14:44,129 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:14:44" (1/1) ... [2024-10-24 01:14:44,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:14:44" (1/1) ... [2024-10-24 01:14:44,140 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:14:44" (1/1) ... [2024-10-24 01:14:44,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:14:44" (1/1) ... [2024-10-24 01:14:44,143 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:14:44" (1/1) ... [2024-10-24 01:14:44,146 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:14:44,147 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:14:44,147 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:14:44,148 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:14:44,148 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:14:44" (1/1) ... [2024-10-24 01:14:44,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:14:44,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:14:44,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 01:14:44,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 01:14:44,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:14:44,218 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 01:14:44,219 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 01:14:44,219 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 01:14:44,219 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 01:14:44,219 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 01:14:44,219 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 01:14:44,220 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 01:14:44,220 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 01:14:44,220 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 01:14:44,220 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 01:14:44,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:14:44,222 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 01:14:44,222 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 01:14:44,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:14:44,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:14:44,294 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:14:44,296 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:14:44,742 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-10-24 01:14:44,742 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:14:44,809 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:14:44,810 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-24 01:14:44,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:14:44 BoogieIcfgContainer [2024-10-24 01:14:44,810 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:14:44,812 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:14:44,813 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:14:44,815 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:14:44,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:14:43" (1/3) ... [2024-10-24 01:14:44,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ca874a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:14:44, skipping insertion in model container [2024-10-24 01:14:44,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:14:44" (2/3) ... [2024-10-24 01:14:44,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ca874a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:14:44, skipping insertion in model container [2024-10-24 01:14:44,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:14:44" (3/3) ... [2024-10-24 01:14:44,818 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.03.cil-2.c [2024-10-24 01:14:44,831 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:14:44,831 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:14:44,886 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:14:44,891 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;@4955e81e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:14:44,892 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:14:44,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 116 states have (on average 1.6724137931034482) internal successors, (194), 118 states have internal predecessors, (194), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-24 01:14:44,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-24 01:14:44,907 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:14:44,908 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:14:44,908 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:14:44,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:14:44,913 INFO L85 PathProgramCache]: Analyzing trace with hash -806991754, now seen corresponding path program 1 times [2024-10-24 01:14:44,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:14:44,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072740041] [2024-10-24 01:14:44,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:14:44,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:14:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:45,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:14:45,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:45,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 01:14:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:45,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 01:14:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:45,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:14:45,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:45,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 01:14:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:45,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:14:45,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:14:45,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072740041] [2024-10-24 01:14:45,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072740041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:14:45,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:14:45,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:14:45,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083700605] [2024-10-24 01:14:45,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:14:45,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:14:45,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:14:45,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:14:45,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:14:45,408 INFO L87 Difference]: Start difference. First operand has 141 states, 116 states have (on average 1.6724137931034482) internal successors, (194), 118 states have internal predecessors, (194), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:14:46,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:14:46,115 INFO L93 Difference]: Finished difference Result 316 states and 517 transitions. [2024-10-24 01:14:46,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:14:46,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 70 [2024-10-24 01:14:46,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:14:46,130 INFO L225 Difference]: With dead ends: 316 [2024-10-24 01:14:46,130 INFO L226 Difference]: Without dead ends: 179 [2024-10-24 01:14:46,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:14:46,139 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 338 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:14:46,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 256 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 01:14:46,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-10-24 01:14:46,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 139. [2024-10-24 01:14:46,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 115 states have (on average 1.5478260869565217) internal successors, (178), 116 states have internal predecessors, (178), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-24 01:14:46,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 212 transitions. [2024-10-24 01:14:46,198 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 212 transitions. Word has length 70 [2024-10-24 01:14:46,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:14:46,199 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 212 transitions. [2024-10-24 01:14:46,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:14:46,199 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 212 transitions. [2024-10-24 01:14:46,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-24 01:14:46,202 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:14:46,202 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:14:46,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:14:46,203 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:14:46,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:14:46,204 INFO L85 PathProgramCache]: Analyzing trace with hash -389595148, now seen corresponding path program 1 times [2024-10-24 01:14:46,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:14:46,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394899624] [2024-10-24 01:14:46,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:14:46,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:14:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:46,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:14:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:46,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 01:14:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:46,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 01:14:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:46,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:14:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:46,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 01:14:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:46,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:14:46,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:14:46,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394899624] [2024-10-24 01:14:46,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394899624] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:14:46,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:14:46,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:14:46,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006475788] [2024-10-24 01:14:46,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:14:46,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:14:46,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:14:46,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:14:46,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:14:46,475 INFO L87 Difference]: Start difference. First operand 139 states and 212 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:14:47,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:14:47,439 INFO L93 Difference]: Finished difference Result 480 states and 752 transitions. [2024-10-24 01:14:47,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:14:47,440 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 70 [2024-10-24 01:14:47,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:14:47,443 INFO L225 Difference]: With dead ends: 480 [2024-10-24 01:14:47,444 INFO L226 Difference]: Without dead ends: 350 [2024-10-24 01:14:47,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:14:47,447 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 502 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 01:14:47,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 421 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 01:14:47,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-10-24 01:14:47,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 271. [2024-10-24 01:14:47,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 228 states have (on average 1.5570175438596492) internal successors, (355), 230 states have internal predecessors, (355), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2024-10-24 01:14:47,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 416 transitions. [2024-10-24 01:14:47,495 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 416 transitions. Word has length 70 [2024-10-24 01:14:47,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:14:47,496 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 416 transitions. [2024-10-24 01:14:47,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:14:47,497 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 416 transitions. [2024-10-24 01:14:47,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-24 01:14:47,502 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:14:47,502 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:14:47,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:14:47,503 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:14:47,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:14:47,504 INFO L85 PathProgramCache]: Analyzing trace with hash 311653240, now seen corresponding path program 1 times [2024-10-24 01:14:47,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:14:47,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419294692] [2024-10-24 01:14:47,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:14:47,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:14:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:47,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:14:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:47,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 01:14:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:47,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 01:14:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:47,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:14:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:47,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 01:14:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:47,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:14:47,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:14:47,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419294692] [2024-10-24 01:14:47,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419294692] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:14:47,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:14:47,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:14:47,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327286875] [2024-10-24 01:14:47,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:14:47,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:14:47,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:14:47,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:14:47,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:14:47,713 INFO L87 Difference]: Start difference. First operand 271 states and 416 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:14:48,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:14:48,983 INFO L93 Difference]: Finished difference Result 787 states and 1228 transitions. [2024-10-24 01:14:48,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:14:48,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 70 [2024-10-24 01:14:48,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:14:48,992 INFO L225 Difference]: With dead ends: 787 [2024-10-24 01:14:48,992 INFO L226 Difference]: Without dead ends: 525 [2024-10-24 01:14:48,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 01:14:48,998 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 509 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:14:48,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 781 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 01:14:49,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-10-24 01:14:49,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 395. [2024-10-24 01:14:49,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 333 states have (on average 1.5495495495495495) internal successors, (516), 336 states have internal predecessors, (516), 41 states have call successors, (41), 18 states have call predecessors, (41), 20 states have return successors, (46), 42 states have call predecessors, (46), 41 states have call successors, (46) [2024-10-24 01:14:49,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 603 transitions. [2024-10-24 01:14:49,055 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 603 transitions. Word has length 70 [2024-10-24 01:14:49,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:14:49,055 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 603 transitions. [2024-10-24 01:14:49,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:14:49,056 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 603 transitions. [2024-10-24 01:14:49,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-24 01:14:49,060 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:14:49,060 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:14:49,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:14:49,061 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:14:49,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:14:49,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1572570490, now seen corresponding path program 1 times [2024-10-24 01:14:49,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:14:49,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115081819] [2024-10-24 01:14:49,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:14:49,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:14:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:49,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:14:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:49,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 01:14:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:49,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 01:14:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:49,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:14:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:49,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 01:14:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:49,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:14:49,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:14:49,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115081819] [2024-10-24 01:14:49,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115081819] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:14:49,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:14:49,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:14:49,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904367599] [2024-10-24 01:14:49,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:14:49,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:14:49,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:14:49,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:14:49,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:14:49,236 INFO L87 Difference]: Start difference. First operand 395 states and 603 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:14:49,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:14:49,795 INFO L93 Difference]: Finished difference Result 911 states and 1419 transitions. [2024-10-24 01:14:49,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:14:49,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 70 [2024-10-24 01:14:49,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:14:49,803 INFO L225 Difference]: With dead ends: 911 [2024-10-24 01:14:49,803 INFO L226 Difference]: Without dead ends: 525 [2024-10-24 01:14:49,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:14:49,807 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 429 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:14:49,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 325 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:14:49,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-10-24 01:14:49,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 395. [2024-10-24 01:14:49,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 333 states have (on average 1.5405405405405406) internal successors, (513), 336 states have internal predecessors, (513), 41 states have call successors, (41), 18 states have call predecessors, (41), 20 states have return successors, (46), 42 states have call predecessors, (46), 41 states have call successors, (46) [2024-10-24 01:14:49,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 600 transitions. [2024-10-24 01:14:49,852 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 600 transitions. Word has length 70 [2024-10-24 01:14:49,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:14:49,853 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 600 transitions. [2024-10-24 01:14:49,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:14:49,853 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 600 transitions. [2024-10-24 01:14:49,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-24 01:14:49,855 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:14:49,855 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:14:49,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:14:49,856 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:14:49,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:14:49,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1613245240, now seen corresponding path program 1 times [2024-10-24 01:14:49,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:14:49,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999363852] [2024-10-24 01:14:49,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:14:49,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:14:49,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:49,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:14:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:49,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 01:14:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:50,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 01:14:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:50,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:14:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:50,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 01:14:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:50,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:14:50,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:14:50,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999363852] [2024-10-24 01:14:50,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999363852] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:14:50,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:14:50,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:14:50,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071269244] [2024-10-24 01:14:50,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:14:50,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:14:50,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:14:50,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:14:50,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:14:50,041 INFO L87 Difference]: Start difference. First operand 395 states and 600 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:14:51,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:14:51,337 INFO L93 Difference]: Finished difference Result 1318 states and 2031 transitions. [2024-10-24 01:14:51,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:14:51,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 70 [2024-10-24 01:14:51,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:14:51,343 INFO L225 Difference]: With dead ends: 1318 [2024-10-24 01:14:51,344 INFO L226 Difference]: Without dead ends: 932 [2024-10-24 01:14:51,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:14:51,346 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 616 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:14:51,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 772 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 01:14:51,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2024-10-24 01:14:51,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 645. [2024-10-24 01:14:51,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 547 states have (on average 1.5356489945155394) internal successors, (840), 552 states have internal predecessors, (840), 63 states have call successors, (63), 30 states have call predecessors, (63), 34 states have return successors, (76), 66 states have call predecessors, (76), 63 states have call successors, (76) [2024-10-24 01:14:51,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 979 transitions. [2024-10-24 01:14:51,416 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 979 transitions. Word has length 70 [2024-10-24 01:14:51,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:14:51,416 INFO L471 AbstractCegarLoop]: Abstraction has 645 states and 979 transitions. [2024-10-24 01:14:51,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:14:51,417 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 979 transitions. [2024-10-24 01:14:51,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-24 01:14:51,418 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:14:51,418 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:14:51,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:14:51,419 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:14:51,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:14:51,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1294936646, now seen corresponding path program 1 times [2024-10-24 01:14:51,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:14:51,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776449786] [2024-10-24 01:14:51,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:14:51,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:14:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:51,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:14:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:51,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 01:14:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:51,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 01:14:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:51,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:14:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:51,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 01:14:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:51,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:14:51,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:14:51,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776449786] [2024-10-24 01:14:51,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776449786] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:14:51,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:14:51,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:14:51,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851974863] [2024-10-24 01:14:51,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:14:51,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:14:51,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:14:51,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:14:51,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:14:51,552 INFO L87 Difference]: Start difference. First operand 645 states and 979 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:14:52,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:14:52,884 INFO L93 Difference]: Finished difference Result 2220 states and 3408 transitions. [2024-10-24 01:14:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:14:52,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 70 [2024-10-24 01:14:52,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:14:52,894 INFO L225 Difference]: With dead ends: 2220 [2024-10-24 01:14:52,894 INFO L226 Difference]: Without dead ends: 1584 [2024-10-24 01:14:52,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:14:52,898 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 515 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:14:52,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 768 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 01:14:52,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2024-10-24 01:14:53,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1122. [2024-10-24 01:14:53,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 954 states have (on average 1.530398322851153) internal successors, (1460), 963 states have internal predecessors, (1460), 105 states have call successors, (105), 54 states have call predecessors, (105), 62 states have return successors, (140), 112 states have call predecessors, (140), 105 states have call successors, (140) [2024-10-24 01:14:53,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1705 transitions. [2024-10-24 01:14:53,021 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1705 transitions. Word has length 70 [2024-10-24 01:14:53,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:14:53,021 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1705 transitions. [2024-10-24 01:14:53,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:14:53,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1705 transitions. [2024-10-24 01:14:53,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-24 01:14:53,023 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:14:53,024 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:14:53,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:14:53,024 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:14:53,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:14:53,025 INFO L85 PathProgramCache]: Analyzing trace with hash -418917640, now seen corresponding path program 1 times [2024-10-24 01:14:53,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:14:53,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773561118] [2024-10-24 01:14:53,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:14:53,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:14:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:53,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:14:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:53,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 01:14:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:53,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 01:14:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:53,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:14:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:53,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 01:14:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:53,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:14:53,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:14:53,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773561118] [2024-10-24 01:14:53,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773561118] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:14:53,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:14:53,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:14:53,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846868453] [2024-10-24 01:14:53,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:14:53,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:14:53,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:14:53,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:14:53,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:14:53,128 INFO L87 Difference]: Start difference. First operand 1122 states and 1705 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:14:53,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:14:53,726 INFO L93 Difference]: Finished difference Result 2529 states and 3892 transitions. [2024-10-24 01:14:53,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:14:53,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 70 [2024-10-24 01:14:53,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:14:53,735 INFO L225 Difference]: With dead ends: 2529 [2024-10-24 01:14:53,739 INFO L226 Difference]: Without dead ends: 1416 [2024-10-24 01:14:53,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:14:53,746 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 433 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:14:53,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 323 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:14:53,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2024-10-24 01:14:53,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1122. [2024-10-24 01:14:53,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 954 states have (on average 1.520964360587002) internal successors, (1451), 963 states have internal predecessors, (1451), 105 states have call successors, (105), 54 states have call predecessors, (105), 62 states have return successors, (140), 112 states have call predecessors, (140), 105 states have call successors, (140) [2024-10-24 01:14:53,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1696 transitions. [2024-10-24 01:14:53,860 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1696 transitions. Word has length 70 [2024-10-24 01:14:53,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:14:53,862 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1696 transitions. [2024-10-24 01:14:53,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:14:53,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1696 transitions. [2024-10-24 01:14:53,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-24 01:14:53,865 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:14:53,865 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:14:53,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:14:53,865 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:14:53,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:14:53,866 INFO L85 PathProgramCache]: Analyzing trace with hash 24983034, now seen corresponding path program 1 times [2024-10-24 01:14:53,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:14:53,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122894567] [2024-10-24 01:14:53,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:14:53,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:14:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:53,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:14:53,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:53,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 01:14:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:53,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 01:14:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:53,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:14:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:54,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 01:14:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:54,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:14:54,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:14:54,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122894567] [2024-10-24 01:14:54,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122894567] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:14:54,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:14:54,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:14:54,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729359614] [2024-10-24 01:14:54,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:14:54,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:14:54,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:14:54,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:14:54,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:14:54,006 INFO L87 Difference]: Start difference. First operand 1122 states and 1696 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:14:55,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:14:55,118 INFO L93 Difference]: Finished difference Result 3801 states and 5776 transitions. [2024-10-24 01:14:55,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:14:55,119 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 70 [2024-10-24 01:14:55,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:14:55,133 INFO L225 Difference]: With dead ends: 3801 [2024-10-24 01:14:55,133 INFO L226 Difference]: Without dead ends: 2688 [2024-10-24 01:14:55,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:14:55,138 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 499 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 01:14:55,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 772 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1159 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 01:14:55,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2688 states. [2024-10-24 01:14:55,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2688 to 2104. [2024-10-24 01:14:55,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2104 states, 1800 states have (on average 1.5172222222222222) internal successors, (2731), 1817 states have internal predecessors, (2731), 185 states have call successors, (185), 102 states have call predecessors, (185), 118 states have return successors, (282), 200 states have call predecessors, (282), 185 states have call successors, (282) [2024-10-24 01:14:55,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2104 states to 2104 states and 3198 transitions. [2024-10-24 01:14:55,310 INFO L78 Accepts]: Start accepts. Automaton has 2104 states and 3198 transitions. Word has length 70 [2024-10-24 01:14:55,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:14:55,310 INFO L471 AbstractCegarLoop]: Abstraction has 2104 states and 3198 transitions. [2024-10-24 01:14:55,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:14:55,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2104 states and 3198 transitions. [2024-10-24 01:14:55,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-24 01:14:55,313 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:14:55,314 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:14:55,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:14:55,314 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:14:55,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:14:55,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1563323064, now seen corresponding path program 1 times [2024-10-24 01:14:55,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:14:55,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624853959] [2024-10-24 01:14:55,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:14:55,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:14:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:55,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:14:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:55,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 01:14:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:55,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 01:14:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:55,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:14:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:55,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 01:14:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:55,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:14:55,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:14:55,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624853959] [2024-10-24 01:14:55,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624853959] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:14:55,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:14:55,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:14:55,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276592800] [2024-10-24 01:14:55,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:14:55,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:14:55,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:14:55,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:14:55,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:14:55,413 INFO L87 Difference]: Start difference. First operand 2104 states and 3198 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:14:56,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:14:56,382 INFO L93 Difference]: Finished difference Result 6005 states and 9182 transitions. [2024-10-24 01:14:56,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:14:56,383 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 70 [2024-10-24 01:14:56,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:14:56,403 INFO L225 Difference]: With dead ends: 6005 [2024-10-24 01:14:56,404 INFO L226 Difference]: Without dead ends: 3911 [2024-10-24 01:14:56,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:14:56,413 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 646 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 01:14:56,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 585 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1006 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 01:14:56,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3911 states. [2024-10-24 01:14:56,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3911 to 3190. [2024-10-24 01:14:56,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3190 states, 2723 states have (on average 1.5042232831435915) internal successors, (4096), 2757 states have internal predecessors, (4096), 286 states have call successors, (286), 156 states have call predecessors, (286), 180 states have return successors, (411), 292 states have call predecessors, (411), 286 states have call successors, (411) [2024-10-24 01:14:56,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3190 states to 3190 states and 4793 transitions. [2024-10-24 01:14:56,675 INFO L78 Accepts]: Start accepts. Automaton has 3190 states and 4793 transitions. Word has length 70 [2024-10-24 01:14:56,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:14:56,675 INFO L471 AbstractCegarLoop]: Abstraction has 3190 states and 4793 transitions. [2024-10-24 01:14:56,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:14:56,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3190 states and 4793 transitions. [2024-10-24 01:14:56,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:14:56,683 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:14:56,683 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:14:56,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:14:56,684 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:14:56,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:14:56,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1754191787, now seen corresponding path program 1 times [2024-10-24 01:14:56,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:14:56,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246901220] [2024-10-24 01:14:56,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:14:56,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:14:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:56,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:14:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:56,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 01:14:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:56,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 01:14:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:56,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:14:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:56,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 01:14:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:56,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 01:14:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:56,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 01:14:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:56,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 01:14:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:56,803 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-24 01:14:56,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:14:56,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246901220] [2024-10-24 01:14:56,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246901220] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 01:14:56,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948575256] [2024-10-24 01:14:56,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:14:56,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:14:56,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:14:56,807 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 01:14:56,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 01:14:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:56,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 01:14:56,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 01:14:56,978 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-24 01:14:56,978 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 01:14:56,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948575256] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:14:56,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 01:14:56,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-24 01:14:56,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372906238] [2024-10-24 01:14:56,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:14:56,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:14:56,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:14:56,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:14:56,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:14:56,981 INFO L87 Difference]: Start difference. First operand 3190 states and 4793 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 01:14:57,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:14:57,425 INFO L93 Difference]: Finished difference Result 9469 states and 14323 transitions. [2024-10-24 01:14:57,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:14:57,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 114 [2024-10-24 01:14:57,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:14:57,460 INFO L225 Difference]: With dead ends: 9469 [2024-10-24 01:14:57,461 INFO L226 Difference]: Without dead ends: 6289 [2024-10-24 01:14:57,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:14:57,473 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 168 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:14:57,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 400 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:14:57,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6289 states. [2024-10-24 01:14:57,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6289 to 6261. [2024-10-24 01:14:57,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6261 states, 5346 states have (on average 1.4985035540591096) internal successors, (8011), 5413 states have internal predecessors, (8011), 554 states have call successors, (554), 312 states have call predecessors, (554), 360 states have return successors, (789), 551 states have call predecessors, (789), 554 states have call successors, (789) [2024-10-24 01:14:58,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6261 states to 6261 states and 9354 transitions. [2024-10-24 01:14:58,012 INFO L78 Accepts]: Start accepts. Automaton has 6261 states and 9354 transitions. Word has length 114 [2024-10-24 01:14:58,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:14:58,012 INFO L471 AbstractCegarLoop]: Abstraction has 6261 states and 9354 transitions. [2024-10-24 01:14:58,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 01:14:58,013 INFO L276 IsEmpty]: Start isEmpty. Operand 6261 states and 9354 transitions. [2024-10-24 01:14:58,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:14:58,027 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:14:58,027 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:14:58,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 01:14:58,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-24 01:14:58,232 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:14:58,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:14:58,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1637627949, now seen corresponding path program 1 times [2024-10-24 01:14:58,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:14:58,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302285894] [2024-10-24 01:14:58,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:14:58,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:14:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:58,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:14:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:58,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 01:14:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:58,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 01:14:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:58,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:14:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:58,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 01:14:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:58,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 01:14:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:58,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 01:14:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:58,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 01:14:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:58,384 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-24 01:14:58,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:14:58,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302285894] [2024-10-24 01:14:58,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302285894] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 01:14:58,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378962246] [2024-10-24 01:14:58,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:14:58,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:14:58,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:14:58,388 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 01:14:58,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 01:14:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:14:58,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 01:14:58,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 01:14:58,583 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-24 01:14:58,583 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 01:14:58,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378962246] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:14:58,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 01:14:58,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-24 01:14:58,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614740766] [2024-10-24 01:14:58,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:14:58,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:14:58,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:14:58,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:14:58,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:14:58,586 INFO L87 Difference]: Start difference. First operand 6261 states and 9354 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 01:14:59,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:14:59,330 INFO L93 Difference]: Finished difference Result 18602 states and 27984 transitions. [2024-10-24 01:14:59,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:14:59,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 114 [2024-10-24 01:14:59,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:14:59,396 INFO L225 Difference]: With dead ends: 18602 [2024-10-24 01:14:59,397 INFO L226 Difference]: Without dead ends: 12351 [2024-10-24 01:14:59,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:14:59,421 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 163 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:14:59,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 400 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:14:59,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12351 states. [2024-10-24 01:15:00,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12351 to 12297. [2024-10-24 01:15:00,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12297 states, 10500 states have (on average 1.4924761904761905) internal successors, (15671), 10633 states have internal predecessors, (15671), 1076 states have call successors, (1076), 624 states have call predecessors, (1076), 720 states have return successors, (1531), 1055 states have call predecessors, (1531), 1076 states have call successors, (1531) [2024-10-24 01:15:00,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12297 states to 12297 states and 18278 transitions. [2024-10-24 01:15:00,650 INFO L78 Accepts]: Start accepts. Automaton has 12297 states and 18278 transitions. Word has length 114 [2024-10-24 01:15:00,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:15:00,651 INFO L471 AbstractCegarLoop]: Abstraction has 12297 states and 18278 transitions. [2024-10-24 01:15:00,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 01:15:00,651 INFO L276 IsEmpty]: Start isEmpty. Operand 12297 states and 18278 transitions. [2024-10-24 01:15:00,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 01:15:00,678 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:15:00,679 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:15:00,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 01:15:00,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-24 01:15:00,880 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:15:00,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:15:00,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1408306795, now seen corresponding path program 1 times [2024-10-24 01:15:00,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:15:00,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699654435] [2024-10-24 01:15:00,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:15:00,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:15:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:00,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:15:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:00,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 01:15:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:00,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 01:15:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:01,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:15:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:01,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 01:15:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:01,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 01:15:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:01,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 01:15:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:01,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 01:15:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:01,025 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-24 01:15:01,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:15:01,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699654435] [2024-10-24 01:15:01,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699654435] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 01:15:01,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394517879] [2024-10-24 01:15:01,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:15:01,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:15:01,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:15:01,028 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 01:15:01,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 01:15:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:01,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 01:15:01,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 01:15:01,159 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 01:15:01,160 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 01:15:01,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394517879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:15:01,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 01:15:01,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-24 01:15:01,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137685671] [2024-10-24 01:15:01,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:15:01,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:15:01,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:15:01,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:15:01,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:15:01,162 INFO L87 Difference]: Start difference. First operand 12297 states and 18278 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 01:15:02,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:15:02,827 INFO L93 Difference]: Finished difference Result 36342 states and 54703 transitions. [2024-10-24 01:15:02,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:15:02,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 114 [2024-10-24 01:15:02,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:15:02,939 INFO L225 Difference]: With dead ends: 36342 [2024-10-24 01:15:02,940 INFO L226 Difference]: Without dead ends: 24056 [2024-10-24 01:15:02,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:15:02,974 INFO L432 NwaCegarLoop]: 363 mSDtfsCounter, 180 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:15:02,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 552 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:15:03,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24056 states. [2024-10-24 01:15:04,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24056 to 24056. [2024-10-24 01:15:04,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24056 states, 20536 states have (on average 1.4848558628749513) internal successors, (30493), 20766 states have internal predecessors, (30493), 2079 states have call successors, (2079), 1248 states have call predecessors, (2079), 1440 states have return successors, (3366), 2073 states have call predecessors, (3366), 2079 states have call successors, (3366) [2024-10-24 01:15:04,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24056 states to 24056 states and 35938 transitions. [2024-10-24 01:15:04,985 INFO L78 Accepts]: Start accepts. Automaton has 24056 states and 35938 transitions. Word has length 114 [2024-10-24 01:15:04,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:15:04,985 INFO L471 AbstractCegarLoop]: Abstraction has 24056 states and 35938 transitions. [2024-10-24 01:15:04,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 01:15:04,986 INFO L276 IsEmpty]: Start isEmpty. Operand 24056 states and 35938 transitions. [2024-10-24 01:15:05,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:15:05,051 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:15:05,051 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:15:05,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 01:15:05,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:15:05,257 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:15:05,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:15:05,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1855746044, now seen corresponding path program 1 times [2024-10-24 01:15:05,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:15:05,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126964185] [2024-10-24 01:15:05,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:15:05,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:15:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:05,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:15:05,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:05,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 01:15:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:05,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 01:15:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:05,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:15:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:05,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 01:15:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:05,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 01:15:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:05,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 01:15:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:05,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 01:15:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:05,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 01:15:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:05,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 01:15:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:05,398 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 01:15:05,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:15:05,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126964185] [2024-10-24 01:15:05,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126964185] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 01:15:05,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660816890] [2024-10-24 01:15:05,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:15:05,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:15:05,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:15:05,401 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 01:15:05,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 01:15:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:05,511 INFO L255 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 01:15:05,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 01:15:05,653 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 01:15:05,653 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 01:15:05,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660816890] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:15:05,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 01:15:05,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-24 01:15:05,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077512457] [2024-10-24 01:15:05,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:15:05,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:15:05,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:15:05,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:15:05,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:15:05,657 INFO L87 Difference]: Start difference. First operand 24056 states and 35938 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-24 01:15:08,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:15:08,491 INFO L93 Difference]: Finished difference Result 71080 states and 106857 transitions. [2024-10-24 01:15:08,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:15:08,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 147 [2024-10-24 01:15:08,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:15:08,731 INFO L225 Difference]: With dead ends: 71080 [2024-10-24 01:15:08,731 INFO L226 Difference]: Without dead ends: 47040 [2024-10-24 01:15:08,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:15:08,823 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 122 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:15:08,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 373 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:15:08,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47040 states. [2024-10-24 01:15:12,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47040 to 46830. [2024-10-24 01:15:12,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46830 states, 40154 states have (on average 1.4802759376400856) internal successors, (59439), 40612 states have internal predecessors, (59439), 3869 states have call successors, (3869), 2422 states have call predecessors, (3869), 2806 states have return successors, (6252), 3827 states have call predecessors, (6252), 3869 states have call successors, (6252) [2024-10-24 01:15:12,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46830 states to 46830 states and 69560 transitions. [2024-10-24 01:15:12,636 INFO L78 Accepts]: Start accepts. Automaton has 46830 states and 69560 transitions. Word has length 147 [2024-10-24 01:15:12,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:15:12,637 INFO L471 AbstractCegarLoop]: Abstraction has 46830 states and 69560 transitions. [2024-10-24 01:15:12,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-24 01:15:12,637 INFO L276 IsEmpty]: Start isEmpty. Operand 46830 states and 69560 transitions. [2024-10-24 01:15:12,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-24 01:15:12,771 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:15:12,773 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:15:12,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-24 01:15:12,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:15:12,974 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:15:12,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:15:12,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1632536281, now seen corresponding path program 1 times [2024-10-24 01:15:12,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:15:12,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463985166] [2024-10-24 01:15:12,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:15:12,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:15:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:13,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:15:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:13,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 01:15:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:13,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 01:15:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:13,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:15:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:13,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 01:15:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:13,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 01:15:13,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:13,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 01:15:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:13,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 01:15:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:13,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 01:15:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:13,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 01:15:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:13,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 01:15:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:13,146 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-10-24 01:15:13,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:15:13,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463985166] [2024-10-24 01:15:13,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463985166] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 01:15:13,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564136037] [2024-10-24 01:15:13,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:15:13,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:15:13,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:15:13,149 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 01:15:13,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 01:15:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:13,264 INFO L255 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 01:15:13,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 01:15:13,366 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-24 01:15:13,367 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 01:15:13,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564136037] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:15:13,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 01:15:13,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-24 01:15:13,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957711189] [2024-10-24 01:15:13,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:15:13,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:15:13,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:15:13,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:15:13,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:15:13,370 INFO L87 Difference]: Start difference. First operand 46830 states and 69560 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-24 01:15:15,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:15:15,947 INFO L93 Difference]: Finished difference Result 73894 states and 110353 transitions. [2024-10-24 01:15:15,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:15:15,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 164 [2024-10-24 01:15:15,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:15:16,141 INFO L225 Difference]: With dead ends: 73894 [2024-10-24 01:15:16,142 INFO L226 Difference]: Without dead ends: 40990 [2024-10-24 01:15:16,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:15:16,237 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 141 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:15:16,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 223 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:15:16,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40990 states. [2024-10-24 01:15:18,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40990 to 29878. [2024-10-24 01:15:18,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29878 states, 25666 states have (on average 1.4331411205485858) internal successors, (36783), 25904 states have internal predecessors, (36783), 2409 states have call successors, (2409), 1610 states have call predecessors, (2409), 1802 states have return successors, (3422), 2379 states have call predecessors, (3422), 2409 states have call successors, (3422) [2024-10-24 01:15:18,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29878 states to 29878 states and 42614 transitions. [2024-10-24 01:15:18,951 INFO L78 Accepts]: Start accepts. Automaton has 29878 states and 42614 transitions. Word has length 164 [2024-10-24 01:15:18,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:15:18,952 INFO L471 AbstractCegarLoop]: Abstraction has 29878 states and 42614 transitions. [2024-10-24 01:15:18,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-24 01:15:18,952 INFO L276 IsEmpty]: Start isEmpty. Operand 29878 states and 42614 transitions. [2024-10-24 01:15:18,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-24 01:15:19,000 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:15:19,001 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:15:19,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 01:15:19,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-24 01:15:19,202 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:15:19,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:15:19,203 INFO L85 PathProgramCache]: Analyzing trace with hash -2100041046, now seen corresponding path program 1 times [2024-10-24 01:15:19,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:15:19,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954147207] [2024-10-24 01:15:19,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:15:19,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:15:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:19,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:15:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:19,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 01:15:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:19,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 01:15:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:19,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:15:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:19,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 01:15:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:19,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 01:15:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:19,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 01:15:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:19,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 01:15:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:19,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 01:15:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:19,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 01:15:19,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:19,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 01:15:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:19,347 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-10-24 01:15:19,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:15:19,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954147207] [2024-10-24 01:15:19,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954147207] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 01:15:19,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017828481] [2024-10-24 01:15:19,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:15:19,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:15:19,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:15:19,350 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 01:15:19,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 01:15:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:19,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 01:15:19,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 01:15:19,500 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-24 01:15:19,501 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 01:15:19,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017828481] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:15:19,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 01:15:19,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-24 01:15:19,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582492330] [2024-10-24 01:15:19,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:15:19,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:15:19,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:15:19,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:15:19,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:15:19,504 INFO L87 Difference]: Start difference. First operand 29878 states and 42614 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-24 01:15:21,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:15:21,818 INFO L93 Difference]: Finished difference Result 52577 states and 74783 transitions. [2024-10-24 01:15:21,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:15:21,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 164 [2024-10-24 01:15:21,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:15:21,975 INFO L225 Difference]: With dead ends: 52577 [2024-10-24 01:15:21,976 INFO L226 Difference]: Without dead ends: 31904 [2024-10-24 01:15:22,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:15:22,030 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 148 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:15:22,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 411 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:15:22,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31904 states. [2024-10-24 01:15:24,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31904 to 31800. [2024-10-24 01:15:24,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31800 states, 27384 states have (on average 1.407865907099036) internal successors, (38553), 27622 states have internal predecessors, (38553), 2467 states have call successors, (2467), 1756 states have call predecessors, (2467), 1948 states have return successors, (3626), 2437 states have call predecessors, (3626), 2467 states have call successors, (3626) [2024-10-24 01:15:24,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31800 states to 31800 states and 44646 transitions. [2024-10-24 01:15:24,603 INFO L78 Accepts]: Start accepts. Automaton has 31800 states and 44646 transitions. Word has length 164 [2024-10-24 01:15:24,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:15:24,604 INFO L471 AbstractCegarLoop]: Abstraction has 31800 states and 44646 transitions. [2024-10-24 01:15:24,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-24 01:15:24,604 INFO L276 IsEmpty]: Start isEmpty. Operand 31800 states and 44646 transitions. [2024-10-24 01:15:24,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-10-24 01:15:24,658 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:15:24,658 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:15:24,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 01:15:24,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-24 01:15:24,860 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:15:24,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:15:24,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1232662803, now seen corresponding path program 1 times [2024-10-24 01:15:24,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:15:24,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303985234] [2024-10-24 01:15:24,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:15:24,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:15:24,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:24,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:15:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:24,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 01:15:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:24,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 01:15:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:24,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 01:15:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:24,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 01:15:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:24,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 01:15:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:24,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 01:15:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:24,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 01:15:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:24,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 01:15:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:24,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 01:15:24,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:24,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-24 01:15:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:24,996 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-10-24 01:15:24,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:15:24,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303985234] [2024-10-24 01:15:24,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303985234] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 01:15:24,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287635787] [2024-10-24 01:15:24,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:15:24,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:15:24,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:15:24,999 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 01:15:25,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 01:15:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:25,104 INFO L255 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 01:15:25,106 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 01:15:25,127 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-24 01:15:25,128 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 01:15:25,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287635787] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:15:25,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 01:15:25,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-24 01:15:25,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221194379] [2024-10-24 01:15:25,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:15:25,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:15:25,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:15:25,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:15:25,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:15:25,130 INFO L87 Difference]: Start difference. First operand 31800 states and 44646 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 01:15:29,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:15:29,392 INFO L93 Difference]: Finished difference Result 93864 states and 133164 transitions. [2024-10-24 01:15:29,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:15:29,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 165 [2024-10-24 01:15:29,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:15:29,719 INFO L225 Difference]: With dead ends: 93864 [2024-10-24 01:15:29,720 INFO L226 Difference]: Without dead ends: 62082 [2024-10-24 01:15:29,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:15:29,807 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 178 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:15:29,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 543 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:15:29,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62082 states.