./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/memory-model/2SB.i --full-output --preprocessor.use.memory.slicer false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6ae2ee47 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 ../../../trunk/examples/svcomp/memory-model/2SB.i -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 cec14f16ae81e958645b6575cf97932d8a09e14a8eafa007b1475b8cf31c9f62 --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 21:01:52,595 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 21:01:52,645 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-22 21:01:52,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 21:01:52,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 21:01:52,661 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 21:01:52,666 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 21:01:52,667 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 21:01:52,667 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 21:01:52,668 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 21:01:52,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 21:01:52,669 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 21:01:52,669 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 21:01:52,670 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 21:01:52,671 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 21:01:52,671 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 21:01:52,672 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 21:01:52,674 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 21:01:52,674 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 21:01:52,674 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 21:01:52,675 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 21:01:52,675 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 21:01:52,675 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 21:01:52,675 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 21:01:52,676 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 21:01:52,676 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 21:01:52,676 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 21:01:52,676 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 21:01:52,677 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 21:01:52,677 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 21:01:52,678 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 21:01:52,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 21:01:52,678 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 21:01:52,678 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 21:01:52,679 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 21:01:52,679 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 21:01:52,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 21:01:52,679 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 21:01:52,679 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 21:01:52,680 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 21:01:52,680 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 21:01:52,680 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 21:01:52,680 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cec14f16ae81e958645b6575cf97932d8a09e14a8eafa007b1475b8cf31c9f62 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-22 21:01:52,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 21:01:52,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 21:01:52,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 21:01:52,899 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 21:01:52,900 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 21:01:52,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memory-model/2SB.i [2023-11-22 21:01:53,998 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 21:01:54,211 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 21:01:54,212 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/memory-model/2SB.i [2023-11-22 21:01:54,222 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c0fcd75e/67f8092ad8db47b48c293813f80801ab/FLAGaa39a2503 [2023-11-22 21:01:54,235 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c0fcd75e/67f8092ad8db47b48c293813f80801ab [2023-11-22 21:01:54,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 21:01:54,241 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 21:01:54,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 21:01:54,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 21:01:54,247 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 21:01:54,248 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:01:54" (1/1) ... [2023-11-22 21:01:54,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dcfdf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:54, skipping insertion in model container [2023-11-22 21:01:54,249 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:01:54" (1/1) ... [2023-11-22 21:01:54,275 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 21:01:54,474 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/memory-model/2SB.i[13547,13560] [2023-11-22 21:01:54,479 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:01:54,485 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 21:01:54,539 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/memory-model/2SB.i[13547,13560] [2023-11-22 21:01:54,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:01:54,562 INFO L206 MainTranslator]: Completed translation [2023-11-22 21:01:54,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:54 WrapperNode [2023-11-22 21:01:54,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 21:01:54,564 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 21:01:54,564 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 21:01:54,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 21:01:54,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:54" (1/1) ... [2023-11-22 21:01:54,592 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:54" (1/1) ... [2023-11-22 21:01:54,640 INFO L138 Inliner]: procedures = 28, calls = 405, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 900 [2023-11-22 21:01:54,640 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 21:01:54,641 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 21:01:54,641 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 21:01:54,641 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 21:01:54,648 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:54" (1/1) ... [2023-11-22 21:01:54,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:54" (1/1) ... [2023-11-22 21:01:54,656 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:54" (1/1) ... [2023-11-22 21:01:54,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:54" (1/1) ... [2023-11-22 21:01:54,691 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:54" (1/1) ... [2023-11-22 21:01:54,697 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:54" (1/1) ... [2023-11-22 21:01:54,700 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:54" (1/1) ... [2023-11-22 21:01:54,703 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:54" (1/1) ... [2023-11-22 21:01:54,709 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 21:01:54,724 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 21:01:54,724 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 21:01:54,724 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 21:01:54,725 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:54" (1/1) ... [2023-11-22 21:01:54,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 21:01:54,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:01:54,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 21:01:54,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 21:01:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure tso_core_write [2023-11-22 21:01:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure tso_core_write [2023-11-22 21:01:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_headerT [2023-11-22 21:01:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_nondet_headerT [2023-11-22 21:01:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure stepWriteBuffer [2023-11-22 21:01:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure stepWriteBuffer [2023-11-22 21:01:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure tso_core_read [2023-11-22 21:01:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure tso_core_read [2023-11-22 21:01:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-22 21:01:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 21:01:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-22 21:01:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-22 21:01:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure store_buffering_2_conditions [2023-11-22 21:01:54,785 INFO L138 BoogieDeclarations]: Found implementation of procedure store_buffering_2_conditions [2023-11-22 21:01:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-22 21:01:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure initWriteBuffer [2023-11-22 21:01:54,785 INFO L138 BoogieDeclarations]: Found implementation of procedure initWriteBuffer [2023-11-22 21:01:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure tso_core_fence [2023-11-22 21:01:54,785 INFO L138 BoogieDeclarations]: Found implementation of procedure tso_core_fence [2023-11-22 21:01:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 21:01:54,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 21:01:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 21:01:54,957 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 21:01:54,959 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 21:01:55,766 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 21:01:55,820 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 21:01:55,820 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-11-22 21:01:55,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:01:55 BoogieIcfgContainer [2023-11-22 21:01:55,821 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 21:01:55,824 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 21:01:55,824 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 21:01:55,827 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 21:01:55,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:01:54" (1/3) ... [2023-11-22 21:01:55,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f12e6c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:01:55, skipping insertion in model container [2023-11-22 21:01:55,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:54" (2/3) ... [2023-11-22 21:01:55,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f12e6c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:01:55, skipping insertion in model container [2023-11-22 21:01:55,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:01:55" (3/3) ... [2023-11-22 21:01:55,831 INFO L112 eAbstractionObserver]: Analyzing ICFG 2SB.i [2023-11-22 21:01:55,844 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 21:01:55,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 21:01:55,897 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 21:01:55,903 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, 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;@7f55b656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 21:01:55,903 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 21:01:55,908 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 132 states have (on average 1.6136363636363635) internal successors, (213), 135 states have internal predecessors, (213), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-22 21:01:55,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-22 21:01:55,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:01:55,923 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-22 21:01:55,924 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:01:55,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:01:55,929 INFO L85 PathProgramCache]: Analyzing trace with hash 553220182, now seen corresponding path program 1 times [2023-11-22 21:01:55,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:01:55,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260431978] [2023-11-22 21:01:55,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:01:55,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:01:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:56,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-22 21:01:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:56,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-22 21:01:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:56,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-22 21:01:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:56,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-22 21:01:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:56,416 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-22 21:01:56,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:01:56,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260431978] [2023-11-22 21:01:56,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260431978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:01:56,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:01:56,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 21:01:56,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154883379] [2023-11-22 21:01:56,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:01:56,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 21:01:56,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:01:56,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 21:01:56,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 21:01:56,460 INFO L87 Difference]: Start difference. First operand has 155 states, 132 states have (on average 1.6136363636363635) internal successors, (213), 135 states have internal predecessors, (213), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:01:57,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:01:57,018 INFO L93 Difference]: Finished difference Result 311 states and 489 transitions. [2023-11-22 21:01:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 21:01:57,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 40 [2023-11-22 21:01:57,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:01:57,036 INFO L225 Difference]: With dead ends: 311 [2023-11-22 21:01:57,037 INFO L226 Difference]: Without dead ends: 150 [2023-11-22 21:01:57,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 21:01:57,052 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 2 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-22 21:01:57,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 490 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-22 21:01:57,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-22 21:01:57,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2023-11-22 21:01:57,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 126 states have (on average 1.3253968253968254) internal successors, (167), 128 states have internal predecessors, (167), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-22 21:01:57,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 195 transitions. [2023-11-22 21:01:57,112 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 195 transitions. Word has length 40 [2023-11-22 21:01:57,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:01:57,113 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 195 transitions. [2023-11-22 21:01:57,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:01:57,113 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 195 transitions. [2023-11-22 21:01:57,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-22 21:01:57,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:01:57,118 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-22 21:01:57,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 21:01:57,119 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:01:57,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:01:57,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1362222198, now seen corresponding path program 1 times [2023-11-22 21:01:57,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:01:57,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565853386] [2023-11-22 21:01:57,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:01:57,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:01:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:57,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 21:01:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:57,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 21:01:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:57,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 21:01:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:57,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-22 21:01:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:57,344 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-22 21:01:57,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:01:57,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565853386] [2023-11-22 21:01:57,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565853386] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:01:57,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61441324] [2023-11-22 21:01:57,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:01:57,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:01:57,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:01:57,350 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) [2023-11-22 21:01:57,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-22 21:01:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:57,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-22 21:01:57,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:01:57,579 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-22 21:01:57,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:01:57,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61441324] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:01:57,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:01:57,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-22 21:01:57,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240203578] [2023-11-22 21:01:57,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:01:57,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:01:57,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:01:57,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:01:57,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:01:57,582 INFO L87 Difference]: Start difference. First operand 148 states and 195 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-22 21:01:57,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:01:57,810 INFO L93 Difference]: Finished difference Result 292 states and 387 transitions. [2023-11-22 21:01:57,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:01:57,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2023-11-22 21:01:57,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:01:57,811 INFO L225 Difference]: With dead ends: 292 [2023-11-22 21:01:57,811 INFO L226 Difference]: Without dead ends: 149 [2023-11-22 21:01:57,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:01:57,813 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 21:01:57,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 356 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 21:01:57,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-11-22 21:01:57,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2023-11-22 21:01:57,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 127 states have (on average 1.3228346456692914) internal successors, (168), 129 states have internal predecessors, (168), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-22 21:01:57,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 196 transitions. [2023-11-22 21:01:57,821 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 196 transitions. Word has length 42 [2023-11-22 21:01:57,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:01:57,822 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 196 transitions. [2023-11-22 21:01:57,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-22 21:01:57,822 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 196 transitions. [2023-11-22 21:01:57,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-22 21:01:57,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:01:57,823 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-22 21:01:57,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-22 21:01:58,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:01:58,037 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:01:58,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:01:58,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1282077826, now seen corresponding path program 1 times [2023-11-22 21:01:58,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:01:58,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237288344] [2023-11-22 21:01:58,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:01:58,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:01:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:58,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 21:01:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:58,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-22 21:01:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:58,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 21:01:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:58,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:01:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:58,195 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-22 21:01:58,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:01:58,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237288344] [2023-11-22 21:01:58,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237288344] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:01:58,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076923613] [2023-11-22 21:01:58,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:01:58,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:01:58,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:01:58,216 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) [2023-11-22 21:01:58,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-22 21:01:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:58,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-22 21:01:58,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:01:58,419 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-22 21:01:58,420 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:01:58,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076923613] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:01:58,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:01:58,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-22 21:01:58,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582331560] [2023-11-22 21:01:58,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:01:58,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:01:58,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:01:58,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:01:58,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:01:58,422 INFO L87 Difference]: Start difference. First operand 149 states and 196 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-22 21:01:58,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:01:58,663 INFO L93 Difference]: Finished difference Result 284 states and 374 transitions. [2023-11-22 21:01:58,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:01:58,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2023-11-22 21:01:58,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:01:58,665 INFO L225 Difference]: With dead ends: 284 [2023-11-22 21:01:58,665 INFO L226 Difference]: Without dead ends: 156 [2023-11-22 21:01:58,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:01:58,666 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 6 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 21:01:58,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 345 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 21:01:58,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-22 21:01:58,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 150. [2023-11-22 21:01:58,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 128 states have (on average 1.3203125) internal successors, (169), 130 states have internal predecessors, (169), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-22 21:01:58,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 197 transitions. [2023-11-22 21:01:58,675 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 197 transitions. Word has length 44 [2023-11-22 21:01:58,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:01:58,675 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 197 transitions. [2023-11-22 21:01:58,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-22 21:01:58,675 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 197 transitions. [2023-11-22 21:01:58,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-22 21:01:58,677 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:01:58,677 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-22 21:01:58,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-22 21:01:58,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-22 21:01:58,890 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:01:58,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:01:58,891 INFO L85 PathProgramCache]: Analyzing trace with hash 942228682, now seen corresponding path program 1 times [2023-11-22 21:01:58,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:01:58,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732638565] [2023-11-22 21:01:58,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:01:58,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:01:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:58,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 21:01:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:59,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-22 21:01:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:59,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 21:01:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:59,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:01:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:59,030 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-22 21:01:59,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:01:59,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732638565] [2023-11-22 21:01:59,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732638565] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:01:59,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193409443] [2023-11-22 21:01:59,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:01:59,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:01:59,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:01:59,045 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) [2023-11-22 21:01:59,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-22 21:01:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:59,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-22 21:01:59,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:01:59,251 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-22 21:01:59,251 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:01:59,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193409443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:01:59,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:01:59,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-22 21:01:59,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641795321] [2023-11-22 21:01:59,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:01:59,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:01:59,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:01:59,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:01:59,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:01:59,254 INFO L87 Difference]: Start difference. First operand 150 states and 197 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-22 21:01:59,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:01:59,497 INFO L93 Difference]: Finished difference Result 275 states and 363 transitions. [2023-11-22 21:01:59,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:01:59,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2023-11-22 21:01:59,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:01:59,499 INFO L225 Difference]: With dead ends: 275 [2023-11-22 21:01:59,499 INFO L226 Difference]: Without dead ends: 157 [2023-11-22 21:01:59,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:01:59,500 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 6 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 21:01:59,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 349 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 21:01:59,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-11-22 21:01:59,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 151. [2023-11-22 21:01:59,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 129 states have (on average 1.317829457364341) internal successors, (170), 131 states have internal predecessors, (170), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-22 21:01:59,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 198 transitions. [2023-11-22 21:01:59,514 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 198 transitions. Word has length 47 [2023-11-22 21:01:59,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:01:59,514 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 198 transitions. [2023-11-22 21:01:59,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-22 21:01:59,515 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 198 transitions. [2023-11-22 21:01:59,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-22 21:01:59,517 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:01:59,518 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-22 21:01:59,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-22 21:01:59,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:01:59,727 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:01:59,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:01:59,727 INFO L85 PathProgramCache]: Analyzing trace with hash 851140562, now seen corresponding path program 1 times [2023-11-22 21:01:59,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:01:59,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877648085] [2023-11-22 21:01:59,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:01:59,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:01:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:59,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 21:01:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:59,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-22 21:01:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:59,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 21:01:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:59,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:01:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:01:59,865 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-22 21:01:59,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:01:59,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877648085] [2023-11-22 21:01:59,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877648085] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:01:59,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829649125] [2023-11-22 21:01:59,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:01:59,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:01:59,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:01:59,867 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) [2023-11-22 21:01:59,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-22 21:02:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:00,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-22 21:02:00,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:00,085 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-22 21:02:00,085 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:02:00,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829649125] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:02:00,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:02:00,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-22 21:02:00,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750780514] [2023-11-22 21:02:00,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:02:00,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:02:00,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:00,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:02:00,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:00,088 INFO L87 Difference]: Start difference. First operand 151 states and 198 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:00,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:00,453 INFO L93 Difference]: Finished difference Result 187 states and 253 transitions. [2023-11-22 21:02:00,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:02:00,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 50 [2023-11-22 21:02:00,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:00,455 INFO L225 Difference]: With dead ends: 187 [2023-11-22 21:02:00,455 INFO L226 Difference]: Without dead ends: 181 [2023-11-22 21:02:00,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:00,455 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 47 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:00,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 309 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-22 21:02:00,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-22 21:02:00,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 152. [2023-11-22 21:02:00,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 130 states have (on average 1.3153846153846154) internal successors, (171), 132 states have internal predecessors, (171), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-22 21:02:00,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 199 transitions. [2023-11-22 21:02:00,468 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 199 transitions. Word has length 50 [2023-11-22 21:02:00,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:00,469 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 199 transitions. [2023-11-22 21:02:00,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:00,470 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 199 transitions. [2023-11-22 21:02:00,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-22 21:02:00,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:00,473 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-22 21:02:00,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-22 21:02:00,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:00,691 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:00,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:00,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1494045014, now seen corresponding path program 1 times [2023-11-22 21:02:00,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:00,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233859963] [2023-11-22 21:02:00,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:00,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:00,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 21:02:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:00,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-22 21:02:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:00,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 21:02:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:00,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:02:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:00,873 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-22 21:02:00,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:00,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233859963] [2023-11-22 21:02:00,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233859963] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:00,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53561119] [2023-11-22 21:02:00,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:00,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:00,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:00,875 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) [2023-11-22 21:02:00,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-22 21:02:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:01,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 21:02:01,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:01,096 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-22 21:02:01,096 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:02:01,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53561119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:02:01,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:02:01,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-11-22 21:02:01,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027339266] [2023-11-22 21:02:01,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:02:01,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 21:02:01,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:01,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 21:02:01,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:02:01,099 INFO L87 Difference]: Start difference. First operand 152 states and 199 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:01,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:01,400 INFO L93 Difference]: Finished difference Result 196 states and 267 transitions. [2023-11-22 21:02:01,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 21:02:01,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 60 [2023-11-22 21:02:01,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:01,401 INFO L225 Difference]: With dead ends: 196 [2023-11-22 21:02:01,401 INFO L226 Difference]: Without dead ends: 160 [2023-11-22 21:02:01,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:02:01,402 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 12 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:01,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 522 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-22 21:02:01,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-22 21:02:01,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2023-11-22 21:02:01,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 132 states have (on average 1.3106060606060606) internal successors, (173), 134 states have internal predecessors, (173), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-22 21:02:01,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 201 transitions. [2023-11-22 21:02:01,419 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 201 transitions. Word has length 60 [2023-11-22 21:02:01,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:01,419 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 201 transitions. [2023-11-22 21:02:01,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:01,420 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 201 transitions. [2023-11-22 21:02:01,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-22 21:02:01,425 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:01,425 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-22 21:02:01,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:01,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:01,639 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:01,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:01,639 INFO L85 PathProgramCache]: Analyzing trace with hash -2099857704, now seen corresponding path program 1 times [2023-11-22 21:02:01,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:01,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877932920] [2023-11-22 21:02:01,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:01,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:01,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 21:02:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:01,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-22 21:02:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:01,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 21:02:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:01,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:02:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:01,846 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-22 21:02:01,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:01,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877932920] [2023-11-22 21:02:01,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877932920] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:01,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562197792] [2023-11-22 21:02:01,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:01,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:01,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:01,849 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) [2023-11-22 21:02:01,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-22 21:02:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:02,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 21:02:02,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:02,070 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-22 21:02:02,070 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:02:02,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562197792] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:02:02,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:02:02,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-11-22 21:02:02,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324905596] [2023-11-22 21:02:02,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:02:02,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 21:02:02,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:02,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 21:02:02,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:02:02,074 INFO L87 Difference]: Start difference. First operand 154 states and 201 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:02,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:02,397 INFO L93 Difference]: Finished difference Result 196 states and 265 transitions. [2023-11-22 21:02:02,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 21:02:02,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 60 [2023-11-22 21:02:02,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:02,399 INFO L225 Difference]: With dead ends: 196 [2023-11-22 21:02:02,399 INFO L226 Difference]: Without dead ends: 158 [2023-11-22 21:02:02,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:02:02,399 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 3 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:02,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 521 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-22 21:02:02,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-22 21:02:02,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 157. [2023-11-22 21:02:02,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 135 states have (on average 1.3037037037037038) internal successors, (176), 137 states have internal predecessors, (176), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-22 21:02:02,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 204 transitions. [2023-11-22 21:02:02,408 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 204 transitions. Word has length 60 [2023-11-22 21:02:02,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:02,408 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 204 transitions. [2023-11-22 21:02:02,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:02,408 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 204 transitions. [2023-11-22 21:02:02,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-22 21:02:02,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:02,410 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-22 21:02:02,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:02,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:02,622 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:02,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:02,623 INFO L85 PathProgramCache]: Analyzing trace with hash 2080851028, now seen corresponding path program 1 times [2023-11-22 21:02:02,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:02,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578445532] [2023-11-22 21:02:02,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:02,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:02,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 21:02:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:02,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-22 21:02:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:02,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 21:02:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:02,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:02:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:02,763 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-22 21:02:02,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:02,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578445532] [2023-11-22 21:02:02,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578445532] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:02,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35466978] [2023-11-22 21:02:02,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:02,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:02,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:02,765 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) [2023-11-22 21:02:02,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-22 21:02:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:03,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 21:02:03,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:03,041 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-22 21:02:03,041 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:02:03,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35466978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:02:03,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:02:03,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-22 21:02:03,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719781672] [2023-11-22 21:02:03,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:02:03,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:02:03,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:03,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:02:03,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:03,043 INFO L87 Difference]: Start difference. First operand 157 states and 204 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:03,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:03,280 INFO L93 Difference]: Finished difference Result 198 states and 264 transitions. [2023-11-22 21:02:03,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:02:03,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 60 [2023-11-22 21:02:03,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:03,281 INFO L225 Difference]: With dead ends: 198 [2023-11-22 21:02:03,282 INFO L226 Difference]: Without dead ends: 192 [2023-11-22 21:02:03,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:03,282 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 37 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:03,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 352 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 21:02:03,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-22 21:02:03,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 191. [2023-11-22 21:02:03,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 169 states have (on average 1.349112426035503) internal successors, (228), 171 states have internal predecessors, (228), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-22 21:02:03,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 256 transitions. [2023-11-22 21:02:03,287 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 256 transitions. Word has length 60 [2023-11-22 21:02:03,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:03,287 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 256 transitions. [2023-11-22 21:02:03,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:03,288 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 256 transitions. [2023-11-22 21:02:03,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-22 21:02:03,293 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:03,293 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2023-11-22 21:02:03,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:03,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:03,494 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:03,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:03,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1382026010, now seen corresponding path program 1 times [2023-11-22 21:02:03,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:03,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730254018] [2023-11-22 21:02:03,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:03,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:03,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 21:02:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:03,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-22 21:02:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:03,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 21:02:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:03,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:02:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:03,623 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-22 21:02:03,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:03,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730254018] [2023-11-22 21:02:03,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730254018] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:03,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735788166] [2023-11-22 21:02:03,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:03,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:03,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:03,629 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:03,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-22 21:02:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:03,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 21:02:03,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:03,903 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-22 21:02:03,903 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:02:03,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735788166] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:02:03,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:02:03,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-11-22 21:02:03,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024096202] [2023-11-22 21:02:03,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:02:03,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 21:02:03,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:03,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 21:02:03,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:02:03,907 INFO L87 Difference]: Start difference. First operand 191 states and 256 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:04,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:04,331 INFO L93 Difference]: Finished difference Result 275 states and 383 transitions. [2023-11-22 21:02:04,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 21:02:04,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 74 [2023-11-22 21:02:04,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:04,333 INFO L225 Difference]: With dead ends: 275 [2023-11-22 21:02:04,333 INFO L226 Difference]: Without dead ends: 199 [2023-11-22 21:02:04,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:02:04,336 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 3 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:04,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 521 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-22 21:02:04,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-22 21:02:04,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 197. [2023-11-22 21:02:04,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 175 states have (on average 1.3371428571428572) internal successors, (234), 177 states have internal predecessors, (234), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-22 21:02:04,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 262 transitions. [2023-11-22 21:02:04,364 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 262 transitions. Word has length 74 [2023-11-22 21:02:04,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:04,366 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 262 transitions. [2023-11-22 21:02:04,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:04,366 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 262 transitions. [2023-11-22 21:02:04,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-22 21:02:04,367 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:04,367 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2023-11-22 21:02:04,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-22 21:02:04,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-22 21:02:04,572 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:04,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:04,573 INFO L85 PathProgramCache]: Analyzing trace with hash -206321892, now seen corresponding path program 1 times [2023-11-22 21:02:04,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:04,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316936382] [2023-11-22 21:02:04,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:04,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:04,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 21:02:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:04,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-22 21:02:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:04,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 21:02:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:04,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:02:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:04,674 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-22 21:02:04,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:04,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316936382] [2023-11-22 21:02:04,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316936382] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:04,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703744349] [2023-11-22 21:02:04,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:04,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:04,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:04,680 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:04,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-22 21:02:04,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:04,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 21:02:04,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:04,938 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-22 21:02:04,938 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:02:04,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703744349] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:02:04,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:02:04,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-11-22 21:02:04,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941690714] [2023-11-22 21:02:04,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:02:04,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 21:02:04,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:04,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 21:02:04,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:02:04,941 INFO L87 Difference]: Start difference. First operand 197 states and 262 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:05,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:05,251 INFO L93 Difference]: Finished difference Result 287 states and 395 transitions. [2023-11-22 21:02:05,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 21:02:05,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 74 [2023-11-22 21:02:05,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:05,253 INFO L225 Difference]: With dead ends: 287 [2023-11-22 21:02:05,253 INFO L226 Difference]: Without dead ends: 205 [2023-11-22 21:02:05,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:02:05,253 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 3 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:05,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 521 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-22 21:02:05,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-22 21:02:05,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 203. [2023-11-22 21:02:05,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 181 states have (on average 1.3259668508287292) internal successors, (240), 183 states have internal predecessors, (240), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-22 21:02:05,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 268 transitions. [2023-11-22 21:02:05,259 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 268 transitions. Word has length 74 [2023-11-22 21:02:05,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:05,259 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 268 transitions. [2023-11-22 21:02:05,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:05,259 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 268 transitions. [2023-11-22 21:02:05,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-22 21:02:05,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:05,260 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2023-11-22 21:02:05,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:05,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-22 21:02:05,474 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:05,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:05,474 INFO L85 PathProgramCache]: Analyzing trace with hash -907386470, now seen corresponding path program 1 times [2023-11-22 21:02:05,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:05,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141366203] [2023-11-22 21:02:05,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:05,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:05,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 21:02:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:05,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-22 21:02:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:05,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 21:02:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:05,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:02:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:05,595 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-22 21:02:05,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:05,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141366203] [2023-11-22 21:02:05,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141366203] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:05,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85169791] [2023-11-22 21:02:05,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:05,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:05,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:05,613 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:05,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-22 21:02:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:05,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 21:02:05,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:05,890 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-22 21:02:05,890 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:02:05,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85169791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:02:05,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:02:05,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-22 21:02:05,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958760895] [2023-11-22 21:02:05,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:02:05,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:02:05,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:05,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:02:05,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:05,892 INFO L87 Difference]: Start difference. First operand 203 states and 268 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:06,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:06,088 INFO L93 Difference]: Finished difference Result 291 states and 393 transitions. [2023-11-22 21:02:06,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:02:06,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 74 [2023-11-22 21:02:06,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:06,090 INFO L225 Difference]: With dead ends: 291 [2023-11-22 21:02:06,090 INFO L226 Difference]: Without dead ends: 285 [2023-11-22 21:02:06,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:06,090 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 23 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:06,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 352 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 21:02:06,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-22 21:02:06,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2023-11-22 21:02:06,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 263 states have (on average 1.361216730038023) internal successors, (358), 265 states have internal predecessors, (358), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-22 21:02:06,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 386 transitions. [2023-11-22 21:02:06,096 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 386 transitions. Word has length 74 [2023-11-22 21:02:06,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:06,097 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 386 transitions. [2023-11-22 21:02:06,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:06,097 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 386 transitions. [2023-11-22 21:02:06,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-22 21:02:06,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:06,098 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1] [2023-11-22 21:02:06,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:06,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-22 21:02:06,298 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:06,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:06,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1189383374, now seen corresponding path program 1 times [2023-11-22 21:02:06,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:06,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606331281] [2023-11-22 21:02:06,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:06,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:06,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 21:02:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:06,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-22 21:02:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:06,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 21:02:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:06,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:02:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:06,428 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-22 21:02:06,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:06,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606331281] [2023-11-22 21:02:06,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606331281] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:06,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832215399] [2023-11-22 21:02:06,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:06,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:06,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:06,430 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:06,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-22 21:02:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:06,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 21:02:06,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:06,749 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-22 21:02:06,749 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:02:06,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832215399] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:02:06,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:02:06,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-22 21:02:06,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090308433] [2023-11-22 21:02:06,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:02:06,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:02:06,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:06,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:02:06,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:06,753 INFO L87 Difference]: Start difference. First operand 285 states and 386 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:07,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:07,000 INFO L93 Difference]: Finished difference Result 455 states and 629 transitions. [2023-11-22 21:02:07,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:02:07,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 90 [2023-11-22 21:02:07,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:07,004 INFO L225 Difference]: With dead ends: 455 [2023-11-22 21:02:07,004 INFO L226 Difference]: Without dead ends: 449 [2023-11-22 21:02:07,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:07,005 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 20 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:07,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 353 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 21:02:07,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-11-22 21:02:07,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2023-11-22 21:02:07,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 427 states have (on average 1.3911007025761124) internal successors, (594), 429 states have internal predecessors, (594), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-22 21:02:07,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 622 transitions. [2023-11-22 21:02:07,021 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 622 transitions. Word has length 90 [2023-11-22 21:02:07,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:07,022 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 622 transitions. [2023-11-22 21:02:07,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:07,022 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 622 transitions. [2023-11-22 21:02:07,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-22 21:02:07,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:07,023 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2023-11-22 21:02:07,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:07,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-22 21:02:07,238 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:07,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:07,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1500422068, now seen corresponding path program 1 times [2023-11-22 21:02:07,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:07,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167153021] [2023-11-22 21:02:07,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:07,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:07,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 21:02:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:07,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-22 21:02:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:07,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 21:02:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:07,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:02:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:07,365 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-22 21:02:07,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:07,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167153021] [2023-11-22 21:02:07,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167153021] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:07,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769271428] [2023-11-22 21:02:07,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:07,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:07,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:07,368 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:07,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-22 21:02:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:07,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 21:02:07,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:07,735 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-11-22 21:02:07,735 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:02:07,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769271428] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:02:07,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:02:07,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-22 21:02:07,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307140168] [2023-11-22 21:02:07,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:02:07,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:02:07,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:07,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:02:07,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:07,739 INFO L87 Difference]: Start difference. First operand 449 states and 622 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:07,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:07,989 INFO L93 Difference]: Finished difference Result 783 states and 1101 transitions. [2023-11-22 21:02:07,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:02:07,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 100 [2023-11-22 21:02:07,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:07,992 INFO L225 Difference]: With dead ends: 783 [2023-11-22 21:02:07,992 INFO L226 Difference]: Without dead ends: 777 [2023-11-22 21:02:07,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:07,994 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 16 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:07,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 351 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 21:02:07,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2023-11-22 21:02:08,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 777. [2023-11-22 21:02:08,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 755 states have (on average 1.4119205298013244) internal successors, (1066), 757 states have internal predecessors, (1066), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-22 21:02:08,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1094 transitions. [2023-11-22 21:02:08,009 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1094 transitions. Word has length 100 [2023-11-22 21:02:08,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:08,009 INFO L495 AbstractCegarLoop]: Abstraction has 777 states and 1094 transitions. [2023-11-22 21:02:08,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:08,010 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1094 transitions. [2023-11-22 21:02:08,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-22 21:02:08,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:08,011 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1] [2023-11-22 21:02:08,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:08,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-22 21:02:08,225 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:08,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:08,226 INFO L85 PathProgramCache]: Analyzing trace with hash -210778190, now seen corresponding path program 1 times [2023-11-22 21:02:08,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:08,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928940717] [2023-11-22 21:02:08,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:08,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:08,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 21:02:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:08,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-22 21:02:08,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:08,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 21:02:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:08,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:02:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:08,340 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-22 21:02:08,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:08,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928940717] [2023-11-22 21:02:08,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928940717] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:08,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459377925] [2023-11-22 21:02:08,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:08,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:08,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:08,357 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:08,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-22 21:02:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:08,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-22 21:02:08,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:08,714 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-22 21:02:08,714 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:02:08,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459377925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:02:08,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:02:08,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-22 21:02:08,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662212152] [2023-11-22 21:02:08,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:02:08,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:02:08,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:08,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:02:08,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:08,716 INFO L87 Difference]: Start difference. First operand 777 states and 1094 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:08,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:08,915 INFO L93 Difference]: Finished difference Result 1127 states and 1605 transitions. [2023-11-22 21:02:08,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:02:08,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 130 [2023-11-22 21:02:08,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:08,917 INFO L225 Difference]: With dead ends: 1127 [2023-11-22 21:02:08,917 INFO L226 Difference]: Without dead ends: 793 [2023-11-22 21:02:08,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:08,918 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:08,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 351 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 21:02:08,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2023-11-22 21:02:08,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 793. [2023-11-22 21:02:08,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 771 states have (on average 1.4033722438391698) internal successors, (1082), 773 states have internal predecessors, (1082), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-22 21:02:08,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1110 transitions. [2023-11-22 21:02:08,930 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1110 transitions. Word has length 130 [2023-11-22 21:02:08,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:08,931 INFO L495 AbstractCegarLoop]: Abstraction has 793 states and 1110 transitions. [2023-11-22 21:02:08,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-22 21:02:08,931 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1110 transitions. [2023-11-22 21:02:08,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-22 21:02:08,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:08,933 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1] [2023-11-22 21:02:08,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:09,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-22 21:02:09,146 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:09,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:09,147 INFO L85 PathProgramCache]: Analyzing trace with hash -771477968, now seen corresponding path program 1 times [2023-11-22 21:02:09,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:09,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350450389] [2023-11-22 21:02:09,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:09,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:09,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 21:02:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:09,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-22 21:02:09,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:09,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-22 21:02:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:09,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:02:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:09,253 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-22 21:02:09,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:09,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350450389] [2023-11-22 21:02:09,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350450389] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:09,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77078937] [2023-11-22 21:02:09,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:09,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:09,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:09,255 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:09,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-22 21:02:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:09,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 21:02:09,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:09,597 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-22 21:02:09,597 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:02:09,623 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-22 21:02:09,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77078937] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:02:09,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:02:09,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 4] total 8 [2023-11-22 21:02:09,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087197371] [2023-11-22 21:02:09,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:02:09,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 21:02:09,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:09,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 21:02:09,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:02:09,626 INFO L87 Difference]: Start difference. First operand 793 states and 1110 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 1 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-22 21:02:10,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:10,101 INFO L93 Difference]: Finished difference Result 1586 states and 2222 transitions. [2023-11-22 21:02:10,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 21:02:10,102 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 1 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 130 [2023-11-22 21:02:10,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:10,104 INFO L225 Difference]: With dead ends: 1586 [2023-11-22 21:02:10,104 INFO L226 Difference]: Without dead ends: 796 [2023-11-22 21:02:10,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:02:10,105 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 1 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:10,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 628 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-22 21:02:10,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2023-11-22 21:02:10,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 796. [2023-11-22 21:02:10,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 774 states have (on average 1.4018087855297157) internal successors, (1085), 776 states have internal predecessors, (1085), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-22 21:02:10,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1113 transitions. [2023-11-22 21:02:10,123 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1113 transitions. Word has length 130 [2023-11-22 21:02:10,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:10,123 INFO L495 AbstractCegarLoop]: Abstraction has 796 states and 1113 transitions. [2023-11-22 21:02:10,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 1 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-22 21:02:10,124 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1113 transitions. [2023-11-22 21:02:10,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-22 21:02:10,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:10,126 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1] [2023-11-22 21:02:10,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:10,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:10,340 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:10,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:10,340 INFO L85 PathProgramCache]: Analyzing trace with hash -142599476, now seen corresponding path program 2 times [2023-11-22 21:02:10,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:10,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868899031] [2023-11-22 21:02:10,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:10,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:10,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 21:02:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:10,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:02:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:10,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-22 21:02:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:10,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 21:02:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:10,508 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-11-22 21:02:10,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:10,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868899031] [2023-11-22 21:02:10,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868899031] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:10,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409197367] [2023-11-22 21:02:10,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 21:02:10,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:10,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:10,537 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:10,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-22 21:02:11,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 21:02:11,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 21:02:11,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-22 21:02:11,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:11,153 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-22 21:02:11,153 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:02:11,213 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-22 21:02:11,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409197367] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:02:11,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:02:11,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 7] total 14 [2023-11-22 21:02:11,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459893689] [2023-11-22 21:02:11,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:02:11,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-22 21:02:11,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:11,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-22 21:02:11,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-11-22 21:02:11,215 INFO L87 Difference]: Start difference. First operand 796 states and 1113 transitions. Second operand has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 13 states have internal predecessors, (99), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-22 21:02:12,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:12,159 INFO L93 Difference]: Finished difference Result 1592 states and 2233 transitions. [2023-11-22 21:02:12,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-22 21:02:12,160 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 13 states have internal predecessors, (99), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 133 [2023-11-22 21:02:12,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:12,162 INFO L225 Difference]: With dead ends: 1592 [2023-11-22 21:02:12,162 INFO L226 Difference]: Without dead ends: 802 [2023-11-22 21:02:12,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 265 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-11-22 21:02:12,164 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 1 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:12,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1335 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-22 21:02:12,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2023-11-22 21:02:12,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 802. [2023-11-22 21:02:12,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 780 states have (on average 1.3987179487179486) internal successors, (1091), 782 states have internal predecessors, (1091), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-22 21:02:12,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1119 transitions. [2023-11-22 21:02:12,178 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1119 transitions. Word has length 133 [2023-11-22 21:02:12,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:12,178 INFO L495 AbstractCegarLoop]: Abstraction has 802 states and 1119 transitions. [2023-11-22 21:02:12,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 13 states have internal predecessors, (99), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-22 21:02:12,178 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1119 transitions. [2023-11-22 21:02:12,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-22 21:02:12,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:12,180 INFO L195 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1] [2023-11-22 21:02:12,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:12,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-22 21:02:12,394 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:12,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:12,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1713431012, now seen corresponding path program 3 times [2023-11-22 21:02:12,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:12,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384571023] [2023-11-22 21:02:12,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:12,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:12,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:02:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:12,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:02:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:12,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:02:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:12,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-22 21:02:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:12,564 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 21:02:12,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:12,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384571023] [2023-11-22 21:02:12,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384571023] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:12,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540486645] [2023-11-22 21:02:12,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-22 21:02:12,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:12,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:12,566 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:12,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-22 21:02:13,194 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-22 21:02:13,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 21:02:13,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-22 21:02:13,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:13,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 152 [2023-11-22 21:02:13,862 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 21:02:13,862 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:02:13,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540486645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:02:13,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:02:13,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2023-11-22 21:02:13,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078648015] [2023-11-22 21:02:13,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:02:13,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 21:02:13,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:13,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 21:02:13,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-22 21:02:13,865 INFO L87 Difference]: Start difference. First operand 802 states and 1119 transitions. Second operand has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-22 21:02:15,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:15,077 INFO L93 Difference]: Finished difference Result 1512 states and 2132 transitions. [2023-11-22 21:02:15,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 21:02:15,077 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 140 [2023-11-22 21:02:15,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:15,080 INFO L225 Difference]: With dead ends: 1512 [2023-11-22 21:02:15,080 INFO L226 Difference]: Without dead ends: 827 [2023-11-22 21:02:15,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-22 21:02:15,082 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 47 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:15,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 678 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-22 21:02:15,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2023-11-22 21:02:15,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 810. [2023-11-22 21:02:15,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 788 states have (on average 1.399746192893401) internal successors, (1103), 790 states have internal predecessors, (1103), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-22 21:02:15,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1131 transitions. [2023-11-22 21:02:15,100 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1131 transitions. Word has length 140 [2023-11-22 21:02:15,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:15,100 INFO L495 AbstractCegarLoop]: Abstraction has 810 states and 1131 transitions. [2023-11-22 21:02:15,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-22 21:02:15,100 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1131 transitions. [2023-11-22 21:02:15,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-22 21:02:15,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:15,102 INFO L195 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:02:15,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:15,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-22 21:02:15,317 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:15,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:15,317 INFO L85 PathProgramCache]: Analyzing trace with hash -435299066, now seen corresponding path program 1 times [2023-11-22 21:02:15,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:15,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833048775] [2023-11-22 21:02:15,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:15,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:15,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:02:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:15,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:02:15,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:15,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:02:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:15,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-22 21:02:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:15,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-22 21:02:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:15,478 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-11-22 21:02:15,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:15,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833048775] [2023-11-22 21:02:15,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833048775] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:15,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997789739] [2023-11-22 21:02:15,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:15,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:15,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:15,493 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:15,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-22 21:02:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:15,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 21:02:15,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:15,931 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 21:02:15,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:02:15,958 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-11-22 21:02:15,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997789739] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:02:15,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:02:15,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2023-11-22 21:02:15,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026000827] [2023-11-22 21:02:15,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:02:15,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 21:02:15,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:15,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 21:02:15,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:02:15,961 INFO L87 Difference]: Start difference. First operand 810 states and 1131 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-22 21:02:16,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:16,674 INFO L93 Difference]: Finished difference Result 1610 states and 2254 transitions. [2023-11-22 21:02:16,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 21:02:16,675 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 149 [2023-11-22 21:02:16,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:16,678 INFO L225 Difference]: With dead ends: 1610 [2023-11-22 21:02:16,678 INFO L226 Difference]: Without dead ends: 831 [2023-11-22 21:02:16,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:02:16,679 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 22 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:16,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 776 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-22 21:02:16,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2023-11-22 21:02:16,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 831. [2023-11-22 21:02:16,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 806 states have (on average 1.3945409429280398) internal successors, (1124), 808 states have internal predecessors, (1124), 17 states have call successors, (17), 7 states have call predecessors, (17), 7 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-22 21:02:16,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1158 transitions. [2023-11-22 21:02:16,699 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1158 transitions. Word has length 149 [2023-11-22 21:02:16,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:16,699 INFO L495 AbstractCegarLoop]: Abstraction has 831 states and 1158 transitions. [2023-11-22 21:02:16,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-22 21:02:16,699 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1158 transitions. [2023-11-22 21:02:16,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-22 21:02:16,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:16,701 INFO L195 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:02:16,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:16,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-22 21:02:16,915 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:16,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:16,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1969211738, now seen corresponding path program 2 times [2023-11-22 21:02:16,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:16,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000171558] [2023-11-22 21:02:16,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:16,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:17,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:02:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:17,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:02:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:17,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:02:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:17,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-22 21:02:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:17,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-22 21:02:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:17,060 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2023-11-22 21:02:17,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:17,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000171558] [2023-11-22 21:02:17,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000171558] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:17,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215297832] [2023-11-22 21:02:17,061 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 21:02:17,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:17,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:17,069 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:17,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-22 21:02:17,772 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 21:02:17,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 21:02:17,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-22 21:02:17,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:17,824 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 21:02:17,824 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:02:17,903 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-11-22 21:02:17,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215297832] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:02:17,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:02:17,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 14 [2023-11-22 21:02:17,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798513963] [2023-11-22 21:02:17,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:02:17,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-22 21:02:17,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:17,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-22 21:02:17,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-11-22 21:02:17,906 INFO L87 Difference]: Start difference. First operand 831 states and 1158 transitions. Second operand has 14 states, 14 states have (on average 8.642857142857142) internal successors, (121), 13 states have internal predecessors, (121), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-22 21:02:18,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:18,811 INFO L93 Difference]: Finished difference Result 1658 states and 2319 transitions. [2023-11-22 21:02:18,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-22 21:02:18,812 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.642857142857142) internal successors, (121), 13 states have internal predecessors, (121), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 158 [2023-11-22 21:02:18,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:18,814 INFO L225 Difference]: With dead ends: 1658 [2023-11-22 21:02:18,815 INFO L226 Difference]: Without dead ends: 879 [2023-11-22 21:02:18,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 315 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-11-22 21:02:18,817 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 73 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:18,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 1091 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-22 21:02:18,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2023-11-22 21:02:18,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 873. [2023-11-22 21:02:18,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 842 states have (on average 1.3847980997624703) internal successors, (1166), 844 states have internal predecessors, (1166), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-22 21:02:18,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1212 transitions. [2023-11-22 21:02:18,837 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1212 transitions. Word has length 158 [2023-11-22 21:02:18,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:18,837 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1212 transitions. [2023-11-22 21:02:18,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.642857142857142) internal successors, (121), 13 states have internal predecessors, (121), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-22 21:02:18,837 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1212 transitions. [2023-11-22 21:02:18,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-22 21:02:18,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:18,840 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:02:18,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:19,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:19,054 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:19,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:19,054 INFO L85 PathProgramCache]: Analyzing trace with hash -2025161994, now seen corresponding path program 3 times [2023-11-22 21:02:19,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:19,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78578230] [2023-11-22 21:02:19,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:19,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:19,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:02:19,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:19,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:02:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:19,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:02:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:19,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-22 21:02:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:19,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-22 21:02:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:19,311 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2023-11-22 21:02:19,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:19,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78578230] [2023-11-22 21:02:19,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78578230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:02:19,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:02:19,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 21:02:19,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779909435] [2023-11-22 21:02:19,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:02:19,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 21:02:19,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:19,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 21:02:19,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:19,314 INFO L87 Difference]: Start difference. First operand 873 states and 1212 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:20,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:20,026 INFO L93 Difference]: Finished difference Result 2319 states and 3267 transitions. [2023-11-22 21:02:20,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 21:02:20,027 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 176 [2023-11-22 21:02:20,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:20,031 INFO L225 Difference]: With dead ends: 2319 [2023-11-22 21:02:20,031 INFO L226 Difference]: Without dead ends: 1641 [2023-11-22 21:02:20,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:02:20,032 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 98 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:20,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 500 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-22 21:02:20,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2023-11-22 21:02:20,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1081. [2023-11-22 21:02:20,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 1050 states have (on average 1.3695238095238096) internal successors, (1438), 1052 states have internal predecessors, (1438), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-22 21:02:20,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1484 transitions. [2023-11-22 21:02:20,052 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1484 transitions. Word has length 176 [2023-11-22 21:02:20,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:20,053 INFO L495 AbstractCegarLoop]: Abstraction has 1081 states and 1484 transitions. [2023-11-22 21:02:20,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:20,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1484 transitions. [2023-11-22 21:02:20,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-22 21:02:20,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:20,055 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:02:20,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-22 21:02:20,056 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:20,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:20,056 INFO L85 PathProgramCache]: Analyzing trace with hash 138344188, now seen corresponding path program 1 times [2023-11-22 21:02:20,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:20,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402289794] [2023-11-22 21:02:20,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:20,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:20,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:02:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:20,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:02:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:20,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:02:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:20,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-22 21:02:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:20,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-22 21:02:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:20,262 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-22 21:02:20,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:20,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402289794] [2023-11-22 21:02:20,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402289794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:02:20,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:02:20,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 21:02:20,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249024013] [2023-11-22 21:02:20,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:02:20,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 21:02:20,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:20,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 21:02:20,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:20,265 INFO L87 Difference]: Start difference. First operand 1081 states and 1484 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 5 states have internal predecessors, (103), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:20,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:20,918 INFO L93 Difference]: Finished difference Result 2495 states and 3491 transitions. [2023-11-22 21:02:20,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 21:02:20,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 5 states have internal predecessors, (103), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 176 [2023-11-22 21:02:20,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:20,922 INFO L225 Difference]: With dead ends: 2495 [2023-11-22 21:02:20,922 INFO L226 Difference]: Without dead ends: 1609 [2023-11-22 21:02:20,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:02:20,924 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 50 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:20,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 516 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-22 21:02:20,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1609 states. [2023-11-22 21:02:20,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1609 to 1401. [2023-11-22 21:02:20,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 1370 states have (on average 1.3766423357664233) internal successors, (1886), 1372 states have internal predecessors, (1886), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-22 21:02:20,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 1932 transitions. [2023-11-22 21:02:20,951 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 1932 transitions. Word has length 176 [2023-11-22 21:02:20,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:20,952 INFO L495 AbstractCegarLoop]: Abstraction has 1401 states and 1932 transitions. [2023-11-22 21:02:20,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 5 states have internal predecessors, (103), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:20,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 1932 transitions. [2023-11-22 21:02:20,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-22 21:02:20,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:20,981 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:02:20,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-22 21:02:20,981 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:20,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:20,982 INFO L85 PathProgramCache]: Analyzing trace with hash -279052418, now seen corresponding path program 1 times [2023-11-22 21:02:20,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:20,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855640078] [2023-11-22 21:02:20,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:20,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:21,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:02:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:21,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:02:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:21,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:02:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:21,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-22 21:02:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:21,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-22 21:02:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:21,171 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-22 21:02:21,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:21,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855640078] [2023-11-22 21:02:21,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855640078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:02:21,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:02:21,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 21:02:21,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743013212] [2023-11-22 21:02:21,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:02:21,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 21:02:21,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:21,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 21:02:21,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 21:02:21,174 INFO L87 Difference]: Start difference. First operand 1401 states and 1932 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:21,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:21,691 INFO L93 Difference]: Finished difference Result 2767 states and 3859 transitions. [2023-11-22 21:02:21,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 21:02:21,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 176 [2023-11-22 21:02:21,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:21,696 INFO L225 Difference]: With dead ends: 2767 [2023-11-22 21:02:21,696 INFO L226 Difference]: Without dead ends: 1561 [2023-11-22 21:02:21,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:21,697 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 13 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:21,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 612 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-22 21:02:21,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2023-11-22 21:02:21,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1433. [2023-11-22 21:02:21,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1402 states have (on average 1.3680456490727533) internal successors, (1918), 1404 states have internal predecessors, (1918), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-22 21:02:21,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 1964 transitions. [2023-11-22 21:02:21,719 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 1964 transitions. Word has length 176 [2023-11-22 21:02:21,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:21,719 INFO L495 AbstractCegarLoop]: Abstraction has 1433 states and 1964 transitions. [2023-11-22 21:02:21,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:21,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 1964 transitions. [2023-11-22 21:02:21,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-22 21:02:21,722 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:21,722 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:02:21,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-22 21:02:21,722 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:21,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:21,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1682522240, now seen corresponding path program 1 times [2023-11-22 21:02:21,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:21,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229092793] [2023-11-22 21:02:21,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:21,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:21,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:02:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:21,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:02:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:21,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:02:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:21,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-22 21:02:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:21,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-22 21:02:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:21,911 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-22 21:02:21,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:21,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229092793] [2023-11-22 21:02:21,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229092793] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:02:21,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:02:21,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 21:02:21,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309824944] [2023-11-22 21:02:21,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:02:21,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 21:02:21,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:21,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 21:02:21,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 21:02:21,914 INFO L87 Difference]: Start difference. First operand 1433 states and 1964 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:22,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:22,541 INFO L93 Difference]: Finished difference Result 2719 states and 3747 transitions. [2023-11-22 21:02:22,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 21:02:22,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 176 [2023-11-22 21:02:22,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:22,545 INFO L225 Difference]: With dead ends: 2719 [2023-11-22 21:02:22,545 INFO L226 Difference]: Without dead ends: 1481 [2023-11-22 21:02:22,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:22,548 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 4 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:22,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 611 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-22 21:02:22,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2023-11-22 21:02:22,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1465. [2023-11-22 21:02:22,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 1434 states have (on average 1.3598326359832635) internal successors, (1950), 1436 states have internal predecessors, (1950), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-22 21:02:22,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 1996 transitions. [2023-11-22 21:02:22,575 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 1996 transitions. Word has length 176 [2023-11-22 21:02:22,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:22,575 INFO L495 AbstractCegarLoop]: Abstraction has 1465 states and 1996 transitions. [2023-11-22 21:02:22,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:22,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 1996 transitions. [2023-11-22 21:02:22,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-22 21:02:22,578 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:22,578 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:02:22,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-22 21:02:22,578 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:22,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:22,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1140308476, now seen corresponding path program 1 times [2023-11-22 21:02:22,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:22,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798083389] [2023-11-22 21:02:22,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:22,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:22,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:02:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:22,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:02:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:22,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:02:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:22,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-22 21:02:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:22,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-22 21:02:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:22,766 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2023-11-22 21:02:22,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:22,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798083389] [2023-11-22 21:02:22,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798083389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:02:22,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:02:22,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 21:02:22,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369576795] [2023-11-22 21:02:22,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:02:22,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 21:02:22,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:22,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 21:02:22,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 21:02:22,769 INFO L87 Difference]: Start difference. First operand 1465 states and 1996 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:23,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:23,295 INFO L93 Difference]: Finished difference Result 2703 states and 3683 transitions. [2023-11-22 21:02:23,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 21:02:23,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 176 [2023-11-22 21:02:23,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:23,301 INFO L225 Difference]: With dead ends: 2703 [2023-11-22 21:02:23,301 INFO L226 Difference]: Without dead ends: 1433 [2023-11-22 21:02:23,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:23,303 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 10 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:23,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 609 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-22 21:02:23,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2023-11-22 21:02:23,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1417. [2023-11-22 21:02:23,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1417 states, 1386 states have (on average 1.3376623376623376) internal successors, (1854), 1388 states have internal predecessors, (1854), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-22 21:02:23,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 1900 transitions. [2023-11-22 21:02:23,327 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 1900 transitions. Word has length 176 [2023-11-22 21:02:23,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:23,327 INFO L495 AbstractCegarLoop]: Abstraction has 1417 states and 1900 transitions. [2023-11-22 21:02:23,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:23,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 1900 transitions. [2023-11-22 21:02:23,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-22 21:02:23,329 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:23,330 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:02:23,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-22 21:02:23,330 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:23,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:23,330 INFO L85 PathProgramCache]: Analyzing trace with hash -648300036, now seen corresponding path program 2 times [2023-11-22 21:02:23,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:23,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829002813] [2023-11-22 21:02:23,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:23,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:23,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:02:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:23,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:02:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:23,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:02:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:23,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-22 21:02:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:23,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-22 21:02:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:23,581 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2023-11-22 21:02:23,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:23,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829002813] [2023-11-22 21:02:23,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829002813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:02:23,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:02:23,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 21:02:23,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674309243] [2023-11-22 21:02:23,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:02:23,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 21:02:23,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:23,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 21:02:23,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:23,584 INFO L87 Difference]: Start difference. First operand 1417 states and 1900 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:24,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:24,200 INFO L93 Difference]: Finished difference Result 3167 states and 4227 transitions. [2023-11-22 21:02:24,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 21:02:24,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 176 [2023-11-22 21:02:24,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:24,205 INFO L225 Difference]: With dead ends: 3167 [2023-11-22 21:02:24,205 INFO L226 Difference]: Without dead ends: 1945 [2023-11-22 21:02:24,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:02:24,207 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 72 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:24,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 605 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-22 21:02:24,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2023-11-22 21:02:24,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1513. [2023-11-22 21:02:24,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1482 states have (on average 1.3049932523616734) internal successors, (1934), 1484 states have internal predecessors, (1934), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-22 21:02:24,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 1980 transitions. [2023-11-22 21:02:24,234 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 1980 transitions. Word has length 176 [2023-11-22 21:02:24,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:24,235 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 1980 transitions. [2023-11-22 21:02:24,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:24,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 1980 transitions. [2023-11-22 21:02:24,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-22 21:02:24,239 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:24,239 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:02:24,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-22 21:02:24,239 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:24,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:24,240 INFO L85 PathProgramCache]: Analyzing trace with hash 11231486, now seen corresponding path program 1 times [2023-11-22 21:02:24,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:24,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722383115] [2023-11-22 21:02:24,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:24,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:24,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:02:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:24,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:02:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:24,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:02:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:24,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-22 21:02:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:24,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-22 21:02:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:24,387 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2023-11-22 21:02:24,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:24,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722383115] [2023-11-22 21:02:24,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722383115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:02:24,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:02:24,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 21:02:24,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649705435] [2023-11-22 21:02:24,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:02:24,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 21:02:24,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:24,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 21:02:24,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 21:02:24,389 INFO L87 Difference]: Start difference. First operand 1513 states and 1980 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:24,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:24,941 INFO L93 Difference]: Finished difference Result 3119 states and 4115 transitions. [2023-11-22 21:02:24,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 21:02:24,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 176 [2023-11-22 21:02:24,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:24,945 INFO L225 Difference]: With dead ends: 3119 [2023-11-22 21:02:24,945 INFO L226 Difference]: Without dead ends: 1801 [2023-11-22 21:02:24,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:02:24,947 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 15 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:24,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 643 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-22 21:02:24,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2023-11-22 21:02:24,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1545. [2023-11-22 21:02:24,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1514 states have (on average 1.2879788639365919) internal successors, (1950), 1516 states have internal predecessors, (1950), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-22 21:02:24,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 1996 transitions. [2023-11-22 21:02:24,967 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 1996 transitions. Word has length 176 [2023-11-22 21:02:24,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:24,969 INFO L495 AbstractCegarLoop]: Abstraction has 1545 states and 1996 transitions. [2023-11-22 21:02:24,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:24,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 1996 transitions. [2023-11-22 21:02:24,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-22 21:02:24,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:24,972 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:02:24,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-22 21:02:24,972 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:24,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:24,973 INFO L85 PathProgramCache]: Analyzing trace with hash -832774016, now seen corresponding path program 1 times [2023-11-22 21:02:24,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:24,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498834144] [2023-11-22 21:02:24,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:24,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:25,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:02:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:25,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:02:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:25,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:02:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:25,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-22 21:02:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:25,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-22 21:02:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:25,166 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2023-11-22 21:02:25,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:25,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498834144] [2023-11-22 21:02:25,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498834144] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:25,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183932054] [2023-11-22 21:02:25,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:25,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:25,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:25,168 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:25,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-22 21:02:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:25,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-22 21:02:25,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:25,750 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2023-11-22 21:02:25,750 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:02:25,786 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2023-11-22 21:02:25,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183932054] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:02:25,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:02:25,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2023-11-22 21:02:25,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53513491] [2023-11-22 21:02:25,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:02:25,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 21:02:25,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:25,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 21:02:25,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-22 21:02:25,788 INFO L87 Difference]: Start difference. First operand 1545 states and 1996 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 states have internal predecessors, (107), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-22 21:02:26,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:26,396 INFO L93 Difference]: Finished difference Result 3013 states and 3900 transitions. [2023-11-22 21:02:26,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 21:02:26,396 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 states have internal predecessors, (107), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 176 [2023-11-22 21:02:26,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:26,400 INFO L225 Difference]: With dead ends: 3013 [2023-11-22 21:02:26,400 INFO L226 Difference]: Without dead ends: 1573 [2023-11-22 21:02:26,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-22 21:02:26,402 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 49 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:26,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 781 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-22 21:02:26,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2023-11-22 21:02:26,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1573. [2023-11-22 21:02:26,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1538 states have (on average 1.2860858257477243) internal successors, (1978), 1540 states have internal predecessors, (1978), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-22 21:02:26,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 2032 transitions. [2023-11-22 21:02:26,430 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 2032 transitions. Word has length 176 [2023-11-22 21:02:26,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:26,430 INFO L495 AbstractCegarLoop]: Abstraction has 1573 states and 2032 transitions. [2023-11-22 21:02:26,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 states have internal predecessors, (107), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-22 21:02:26,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 2032 transitions. [2023-11-22 21:02:26,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-22 21:02:26,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:26,433 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:02:26,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:26,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:26,647 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:26,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:26,647 INFO L85 PathProgramCache]: Analyzing trace with hash 2050485376, now seen corresponding path program 2 times [2023-11-22 21:02:26,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:26,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427387095] [2023-11-22 21:02:26,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:26,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:26,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:02:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:26,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:02:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:26,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:02:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:26,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-22 21:02:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:26,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-22 21:02:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:26,924 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2023-11-22 21:02:26,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:26,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427387095] [2023-11-22 21:02:26,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427387095] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:26,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197037334] [2023-11-22 21:02:26,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 21:02:26,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:26,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:26,926 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:26,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-22 21:02:27,739 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 21:02:27,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 21:02:27,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-22 21:02:27,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:27,782 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 2 proven. 51 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2023-11-22 21:02:27,783 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:02:27,860 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2023-11-22 21:02:27,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197037334] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:02:27,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:02:27,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 13 [2023-11-22 21:02:27,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510777970] [2023-11-22 21:02:27,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:02:27,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-22 21:02:27,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:27,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-22 21:02:27,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2023-11-22 21:02:27,863 INFO L87 Difference]: Start difference. First operand 1573 states and 2032 transitions. Second operand has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-22 21:02:28,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:28,715 INFO L93 Difference]: Finished difference Result 3034 states and 3926 transitions. [2023-11-22 21:02:28,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-22 21:02:28,716 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 188 [2023-11-22 21:02:28,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:28,720 INFO L225 Difference]: With dead ends: 3034 [2023-11-22 21:02:28,720 INFO L226 Difference]: Without dead ends: 1594 [2023-11-22 21:02:28,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 377 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2023-11-22 21:02:28,722 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 71 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:28,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 963 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-22 21:02:28,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1594 states. [2023-11-22 21:02:28,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1594 to 1594. [2023-11-22 21:02:28,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1594 states, 1556 states have (on average 1.2847043701799485) internal successors, (1999), 1558 states have internal predecessors, (1999), 30 states have call successors, (30), 7 states have call predecessors, (30), 7 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-22 21:02:28,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1594 states to 1594 states and 2059 transitions. [2023-11-22 21:02:28,747 INFO L78 Accepts]: Start accepts. Automaton has 1594 states and 2059 transitions. Word has length 188 [2023-11-22 21:02:28,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:28,748 INFO L495 AbstractCegarLoop]: Abstraction has 1594 states and 2059 transitions. [2023-11-22 21:02:28,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-22 21:02:28,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1594 states and 2059 transitions. [2023-11-22 21:02:28,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-22 21:02:28,752 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:28,752 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:02:28,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:28,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-22 21:02:28,971 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:28,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:28,971 INFO L85 PathProgramCache]: Analyzing trace with hash 391617168, now seen corresponding path program 3 times [2023-11-22 21:02:28,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:28,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663504831] [2023-11-22 21:02:28,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:28,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:29,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:02:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:29,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:02:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:29,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:02:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:29,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-22 21:02:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:29,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 21:02:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:29,254 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2023-11-22 21:02:29,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:29,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663504831] [2023-11-22 21:02:29,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663504831] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:29,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862262035] [2023-11-22 21:02:29,255 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-22 21:02:29,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:29,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:29,256 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:29,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-22 21:02:30,057 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-22 21:02:30,057 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 21:02:30,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 52 conjunts are in the unsatisfiable core [2023-11-22 21:02:30,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:30,108 INFO L349 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2023-11-22 21:02:30,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 36 [2023-11-22 21:02:30,172 INFO L349 Elim1Store]: treesize reduction 156, result has 9.3 percent of original size [2023-11-22 21:02:30,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 36 [2023-11-22 21:02:31,129 INFO L349 Elim1Store]: treesize reduction 16, result has 90.5 percent of original size [2023-11-22 21:02:31,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 61 treesize of output 195 [2023-11-22 21:02:33,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 161 [2023-11-22 21:02:33,948 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-22 21:02:33,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 96 [2023-11-22 21:02:34,304 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2023-11-22 21:02:34,304 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:02:34,374 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7911 (Array Int Int)) (v_ArrVal_7912 (Array Int Int))) (not (= |c_ULTIMATE.start_main_~cpu1Reads_issued~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#sharedMemory~0#1.base| v_ArrVal_7912) |c_ULTIMATE.start_main_~#wrBuffer0~0#1.base| v_ArrVal_7911) |c_ULTIMATE.start_main_~#litmus_input~0#1.base|) (+ 164 |c_ULTIMATE.start_main_~#litmus_input~0#1.offset|))))) is different from false [2023-11-22 21:02:34,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862262035] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:34,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 21:02:34,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2023-11-22 21:02:34,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971061909] [2023-11-22 21:02:34,375 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 21:02:34,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-22 21:02:34,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:34,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-22 21:02:34,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=291, Unknown=1, NotChecked=34, Total=380 [2023-11-22 21:02:34,377 INFO L87 Difference]: Start difference. First operand 1594 states and 2059 transitions. Second operand has 17 states, 15 states have (on average 13.8) internal successors, (207), 15 states have internal predecessors, (207), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-22 21:02:40,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:40,727 INFO L93 Difference]: Finished difference Result 18024 states and 23380 transitions. [2023-11-22 21:02:40,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-22 21:02:40,727 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 13.8) internal successors, (207), 15 states have internal predecessors, (207), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 197 [2023-11-22 21:02:40,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:40,762 INFO L225 Difference]: With dead ends: 18024 [2023-11-22 21:02:40,763 INFO L226 Difference]: Without dead ends: 16662 [2023-11-22 21:02:40,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 293 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=239, Invalid=1404, Unknown=1, NotChecked=78, Total=1722 [2023-11-22 21:02:40,768 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 1184 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 2483 SdHoareTripleChecker+Invalid, 1822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:40,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 2483 Invalid, 1822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-22 21:02:40,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16662 states. [2023-11-22 21:02:40,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16662 to 2512. [2023-11-22 21:02:40,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2512 states, 2462 states have (on average 1.3078797725426483) internal successors, (3220), 2468 states have internal predecessors, (3220), 38 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-22 21:02:40,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2512 states to 2512 states and 3296 transitions. [2023-11-22 21:02:40,875 INFO L78 Accepts]: Start accepts. Automaton has 2512 states and 3296 transitions. Word has length 197 [2023-11-22 21:02:40,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:40,875 INFO L495 AbstractCegarLoop]: Abstraction has 2512 states and 3296 transitions. [2023-11-22 21:02:40,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 13.8) internal successors, (207), 15 states have internal predecessors, (207), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-22 21:02:40,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2512 states and 3296 transitions. [2023-11-22 21:02:40,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-11-22 21:02:40,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:40,880 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:02:40,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:41,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-22 21:02:41,094 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:41,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:41,094 INFO L85 PathProgramCache]: Analyzing trace with hash -273190284, now seen corresponding path program 1 times [2023-11-22 21:02:41,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:41,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497412154] [2023-11-22 21:02:41,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:41,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:41,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:02:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:41,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:02:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:41,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:02:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:41,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-22 21:02:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:41,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 21:02:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:41,269 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 83 proven. 28 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2023-11-22 21:02:41,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:41,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497412154] [2023-11-22 21:02:41,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497412154] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:41,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443167389] [2023-11-22 21:02:41,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:41,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:41,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:41,285 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:41,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-22 21:02:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:41,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-22 21:02:41,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:41,899 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 92 proven. 19 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2023-11-22 21:02:41,899 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:02:41,960 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 92 proven. 19 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2023-11-22 21:02:41,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443167389] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:02:41,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:02:41,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2023-11-22 21:02:41,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782447702] [2023-11-22 21:02:41,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:02:41,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-22 21:02:41,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:41,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-22 21:02:41,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-22 21:02:41,963 INFO L87 Difference]: Start difference. First operand 2512 states and 3296 transitions. Second operand has 9 states, 9 states have (on average 20.88888888888889) internal successors, (188), 8 states have internal predecessors, (188), 1 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:42,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:42,705 INFO L93 Difference]: Finished difference Result 4190 states and 5484 transitions. [2023-11-22 21:02:42,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 21:02:42,706 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.88888888888889) internal successors, (188), 8 states have internal predecessors, (188), 1 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 209 [2023-11-22 21:02:42,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:42,711 INFO L225 Difference]: With dead ends: 4190 [2023-11-22 21:02:42,711 INFO L226 Difference]: Without dead ends: 3512 [2023-11-22 21:02:42,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 423 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-22 21:02:42,713 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 329 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:42,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 746 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-22 21:02:42,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3512 states. [2023-11-22 21:02:42,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3512 to 2485. [2023-11-22 21:02:42,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2485 states, 2435 states have (on average 1.3002053388090349) internal successors, (3166), 2441 states have internal predecessors, (3166), 38 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-22 21:02:42,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 3242 transitions. [2023-11-22 21:02:42,820 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 3242 transitions. Word has length 209 [2023-11-22 21:02:42,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:42,820 INFO L495 AbstractCegarLoop]: Abstraction has 2485 states and 3242 transitions. [2023-11-22 21:02:42,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.88888888888889) internal successors, (188), 8 states have internal predecessors, (188), 1 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:42,821 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 3242 transitions. [2023-11-22 21:02:42,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-11-22 21:02:42,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:42,825 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1] [2023-11-22 21:02:42,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:43,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:43,040 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:43,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:43,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1519009012, now seen corresponding path program 2 times [2023-11-22 21:02:43,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:43,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377681203] [2023-11-22 21:02:43,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:43,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:43,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:02:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:43,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:02:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:43,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:02:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:43,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-22 21:02:43,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:43,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 21:02:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:43,287 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2023-11-22 21:02:43,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:43,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377681203] [2023-11-22 21:02:43,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377681203] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:43,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910243970] [2023-11-22 21:02:43,287 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 21:02:43,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:43,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:43,305 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:43,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-22 21:02:44,080 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 21:02:44,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 21:02:44,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-22 21:02:44,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:44,204 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 92 proven. 57 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2023-11-22 21:02:44,204 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:02:44,325 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 92 proven. 57 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2023-11-22 21:02:44,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910243970] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:02:44,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:02:44,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2023-11-22 21:02:44,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045739547] [2023-11-22 21:02:44,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:02:44,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-22 21:02:44,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:44,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-22 21:02:44,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-11-22 21:02:44,328 INFO L87 Difference]: Start difference. First operand 2485 states and 3242 transitions. Second operand has 16 states, 16 states have (on average 18.3125) internal successors, (293), 15 states have internal predecessors, (293), 1 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:46,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:46,122 INFO L93 Difference]: Finished difference Result 6204 states and 7997 transitions. [2023-11-22 21:02:46,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-22 21:02:46,123 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 18.3125) internal successors, (293), 15 states have internal predecessors, (293), 1 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 215 [2023-11-22 21:02:46,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:46,130 INFO L225 Difference]: With dead ends: 6204 [2023-11-22 21:02:46,130 INFO L226 Difference]: Without dead ends: 5534 [2023-11-22 21:02:46,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 438 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2023-11-22 21:02:46,132 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 595 mSDsluCounter, 2146 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:46,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 2424 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1231 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-22 21:02:46,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5534 states. [2023-11-22 21:02:46,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5534 to 2471. [2023-11-22 21:02:46,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2471 states, 2421 states have (on average 1.2961586121437423) internal successors, (3138), 2427 states have internal predecessors, (3138), 38 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-22 21:02:46,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 3214 transitions. [2023-11-22 21:02:46,191 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 3214 transitions. Word has length 215 [2023-11-22 21:02:46,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:46,192 INFO L495 AbstractCegarLoop]: Abstraction has 2471 states and 3214 transitions. [2023-11-22 21:02:46,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 18.3125) internal successors, (293), 15 states have internal predecessors, (293), 1 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:46,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 3214 transitions. [2023-11-22 21:02:46,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-11-22 21:02:46,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:46,221 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1] [2023-11-22 21:02:46,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:46,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:46,432 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:46,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:46,433 INFO L85 PathProgramCache]: Analyzing trace with hash -2072012996, now seen corresponding path program 3 times [2023-11-22 21:02:46,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:46,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697853010] [2023-11-22 21:02:46,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:46,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:46,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:02:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:46,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:02:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:46,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:02:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:46,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-22 21:02:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:46,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-22 21:02:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:46,623 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 100 proven. 23 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2023-11-22 21:02:46,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:46,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697853010] [2023-11-22 21:02:46,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697853010] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:46,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120016182] [2023-11-22 21:02:46,623 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-22 21:02:46,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:46,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:46,641 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:46,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-22 21:02:47,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-22 21:02:47,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 21:02:47,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 55 conjunts are in the unsatisfiable core [2023-11-22 21:02:47,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:47,497 INFO L349 Elim1Store]: treesize reduction 172, result has 10.9 percent of original size [2023-11-22 21:02:47,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 60 [2023-11-22 21:02:48,274 INFO L349 Elim1Store]: treesize reduction 44, result has 32.3 percent of original size [2023-11-22 21:02:48,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 31 treesize of output 39 [2023-11-22 21:02:48,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 161 [2023-11-22 21:02:49,416 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-22 21:02:49,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 96 [2023-11-22 21:02:49,764 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2023-11-22 21:02:49,764 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:02:49,829 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9117 (Array Int Int)) (v_ArrVal_9118 (Array Int Int))) (not (= |c_ULTIMATE.start_main_~cpu1Reads_issued~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#sharedMemory~0#1.base| v_ArrVal_9118) |c_ULTIMATE.start_main_~#wrBuffer1~0#1.base| v_ArrVal_9117) |c_ULTIMATE.start_main_~#litmus_input~0#1.base|) (+ 164 |c_ULTIMATE.start_main_~#litmus_input~0#1.offset|))))) is different from false [2023-11-22 21:02:49,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120016182] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:49,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 21:02:49,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12] total 14 [2023-11-22 21:02:49,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172875005] [2023-11-22 21:02:49,831 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 21:02:49,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-22 21:02:49,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:49,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-22 21:02:49,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=205, Unknown=1, NotChecked=28, Total=272 [2023-11-22 21:02:49,832 INFO L87 Difference]: Start difference. First operand 2471 states and 3214 transitions. Second operand has 14 states, 12 states have (on average 14.75) internal successors, (177), 12 states have internal predecessors, (177), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-22 21:02:55,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:55,704 INFO L93 Difference]: Finished difference Result 11697 states and 15264 transitions. [2023-11-22 21:02:55,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-22 21:02:55,705 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 14.75) internal successors, (177), 12 states have internal predecessors, (177), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 223 [2023-11-22 21:02:55,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:55,716 INFO L225 Difference]: With dead ends: 11697 [2023-11-22 21:02:55,717 INFO L226 Difference]: Without dead ends: 9567 [2023-11-22 21:02:55,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 342 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=156, Invalid=969, Unknown=1, NotChecked=64, Total=1190 [2023-11-22 21:02:55,721 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 488 mSDsluCounter, 3429 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 3872 SdHoareTripleChecker+Invalid, 2423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:55,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 3872 Invalid, 2423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-22 21:02:55,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9567 states. [2023-11-22 21:02:55,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9567 to 3341. [2023-11-22 21:02:55,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3341 states, 3272 states have (on average 1.2970660146699267) internal successors, (4244), 3296 states have internal predecessors, (4244), 56 states have call successors, (56), 12 states have call predecessors, (56), 12 states have return successors, (56), 36 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-22 21:02:55,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3341 states to 3341 states and 4356 transitions. [2023-11-22 21:02:55,830 INFO L78 Accepts]: Start accepts. Automaton has 3341 states and 4356 transitions. Word has length 223 [2023-11-22 21:02:55,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:55,831 INFO L495 AbstractCegarLoop]: Abstraction has 3341 states and 4356 transitions. [2023-11-22 21:02:55,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 14.75) internal successors, (177), 12 states have internal predecessors, (177), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-22 21:02:55,831 INFO L276 IsEmpty]: Start isEmpty. Operand 3341 states and 4356 transitions. [2023-11-22 21:02:55,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-11-22 21:02:55,835 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:55,836 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:02:55,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:56,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:56,050 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:56,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:56,050 INFO L85 PathProgramCache]: Analyzing trace with hash 487765834, now seen corresponding path program 1 times [2023-11-22 21:02:56,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:56,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728167755] [2023-11-22 21:02:56,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:56,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:56,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:02:56,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:56,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:02:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:56,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:02:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:56,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-22 21:02:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:56,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 21:02:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:56,299 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 103 proven. 42 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2023-11-22 21:02:56,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:56,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728167755] [2023-11-22 21:02:56,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728167755] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:56,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172538327] [2023-11-22 21:02:56,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:56,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:56,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:56,317 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:56,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-22 21:02:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:56,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-22 21:02:56,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:57,005 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 112 proven. 33 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2023-11-22 21:02:57,005 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:02:57,086 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 112 proven. 33 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2023-11-22 21:02:57,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172538327] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:02:57,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:02:57,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 10 [2023-11-22 21:02:57,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880199999] [2023-11-22 21:02:57,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:02:57,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 21:02:57,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:57,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 21:02:57,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-22 21:02:57,088 INFO L87 Difference]: Start difference. First operand 3341 states and 4356 transitions. Second operand has 10 states, 10 states have (on average 20.5) internal successors, (205), 8 states have internal predecessors, (205), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:58,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:02:58,142 INFO L93 Difference]: Finished difference Result 4023 states and 5227 transitions. [2023-11-22 21:02:58,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 21:02:58,142 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.5) internal successors, (205), 8 states have internal predecessors, (205), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 226 [2023-11-22 21:02:58,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:02:58,147 INFO L225 Difference]: With dead ends: 4023 [2023-11-22 21:02:58,147 INFO L226 Difference]: Without dead ends: 3357 [2023-11-22 21:02:58,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 456 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-11-22 21:02:58,148 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 152 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-22 21:02:58,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1239 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-22 21:02:58,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3357 states. [2023-11-22 21:02:58,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3357 to 2488. [2023-11-22 21:02:58,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 2419 states have (on average 1.291442744935924) internal successors, (3124), 2443 states have internal predecessors, (3124), 56 states have call successors, (56), 12 states have call predecessors, (56), 12 states have return successors, (56), 36 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-22 21:02:58,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3236 transitions. [2023-11-22 21:02:58,226 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3236 transitions. Word has length 226 [2023-11-22 21:02:58,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:02:58,227 INFO L495 AbstractCegarLoop]: Abstraction has 2488 states and 3236 transitions. [2023-11-22 21:02:58,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.5) internal successors, (205), 8 states have internal predecessors, (205), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:02:58,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3236 transitions. [2023-11-22 21:02:58,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-11-22 21:02:58,236 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:02:58,237 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1] [2023-11-22 21:02:58,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-22 21:02:58,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-22 21:02:58,451 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:02:58,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:02:58,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1840151998, now seen corresponding path program 1 times [2023-11-22 21:02:58,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:02:58,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837429389] [2023-11-22 21:02:58,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:58,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:02:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:58,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:02:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:58,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:02:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:58,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:02:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:58,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-22 21:02:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:58,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 21:02:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:58,766 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2023-11-22 21:02:58,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:02:58,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837429389] [2023-11-22 21:02:58,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837429389] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:02:58,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253269040] [2023-11-22 21:02:58,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:02:58,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:02:58,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:02:58,768 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:02:58,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-22 21:02:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:02:59,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-22 21:02:59,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:02:59,526 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2023-11-22 21:02:59,526 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:02:59,669 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2023-11-22 21:02:59,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253269040] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:02:59,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:02:59,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 14 [2023-11-22 21:02:59,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840805674] [2023-11-22 21:02:59,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:02:59,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-22 21:02:59,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:02:59,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-22 21:02:59,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-11-22 21:02:59,673 INFO L87 Difference]: Start difference. First operand 2488 states and 3236 transitions. Second operand has 14 states, 14 states have (on average 19.357142857142858) internal successors, (271), 12 states have internal predecessors, (271), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:03:00,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:03:00,740 INFO L93 Difference]: Finished difference Result 9581 states and 12247 transitions. [2023-11-22 21:03:00,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-22 21:03:00,741 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 19.357142857142858) internal successors, (271), 12 states have internal predecessors, (271), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 232 [2023-11-22 21:03:00,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:03:00,751 INFO L225 Difference]: With dead ends: 9581 [2023-11-22 21:03:00,752 INFO L226 Difference]: Without dead ends: 9575 [2023-11-22 21:03:00,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 465 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-11-22 21:03:00,755 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 340 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-22 21:03:00,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 974 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-22 21:03:00,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9575 states. [2023-11-22 21:03:00,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9575 to 7704. [2023-11-22 21:03:00,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7704 states, 7635 states have (on average 1.280943025540275) internal successors, (9780), 7659 states have internal predecessors, (9780), 56 states have call successors, (56), 12 states have call predecessors, (56), 12 states have return successors, (56), 36 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-22 21:03:00,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7704 states to 7704 states and 9892 transitions. [2023-11-22 21:03:00,914 INFO L78 Accepts]: Start accepts. Automaton has 7704 states and 9892 transitions. Word has length 232 [2023-11-22 21:03:00,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:03:00,914 INFO L495 AbstractCegarLoop]: Abstraction has 7704 states and 9892 transitions. [2023-11-22 21:03:00,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.357142857142858) internal successors, (271), 12 states have internal predecessors, (271), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-22 21:03:00,915 INFO L276 IsEmpty]: Start isEmpty. Operand 7704 states and 9892 transitions. [2023-11-22 21:03:00,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2023-11-22 21:03:00,924 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:03:00,924 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 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, 1] [2023-11-22 21:03:00,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-22 21:03:01,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-22 21:03:01,139 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:03:01,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:03:01,139 INFO L85 PathProgramCache]: Analyzing trace with hash -257211830, now seen corresponding path program 2 times [2023-11-22 21:03:01,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:03:01,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470430455] [2023-11-22 21:03:01,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:03:01,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:03:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:03:04,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:03:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:03:04,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:03:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:03:04,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:03:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:03:04,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-22 21:03:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:03:04,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 21:03:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:03:04,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1094 trivial. 0 not checked. [2023-11-22 21:03:04,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:03:04,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470430455] [2023-11-22 21:03:04,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470430455] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:03:04,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687091574] [2023-11-22 21:03:04,975 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 21:03:04,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:03:04,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:03:04,997 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:03:05,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-22 21:03:05,990 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 21:03:05,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 21:03:05,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 66 conjunts are in the unsatisfiable core [2023-11-22 21:03:06,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:03:06,040 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2023-11-22 21:03:06,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 23 [2023-11-22 21:03:06,068 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2023-11-22 21:03:06,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 23 [2023-11-22 21:03:06,105 INFO L349 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2023-11-22 21:03:06,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 21 [2023-11-22 21:03:06,128 INFO L349 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2023-11-22 21:03:06,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 1 [2023-11-22 21:03:06,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:06,148 INFO L349 Elim1Store]: treesize reduction 75, result has 1.3 percent of original size [2023-11-22 21:03:06,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 1 [2023-11-22 21:03:06,162 INFO L349 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2023-11-22 21:03:06,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 1 [2023-11-22 21:03:06,177 INFO L349 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2023-11-22 21:03:06,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 1 [2023-11-22 21:03:06,192 INFO L349 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2023-11-22 21:03:06,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 1 [2023-11-22 21:03:06,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:06,214 INFO L349 Elim1Store]: treesize reduction 75, result has 1.3 percent of original size [2023-11-22 21:03:06,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 1 [2023-11-22 21:03:06,228 INFO L349 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2023-11-22 21:03:06,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 1 [2023-11-22 21:03:06,243 INFO L349 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2023-11-22 21:03:06,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2023-11-22 21:03:06,261 INFO L349 Elim1Store]: treesize reduction 75, result has 1.3 percent of original size [2023-11-22 21:03:06,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 1 [2023-11-22 21:03:06,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:06,279 INFO L349 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2023-11-22 21:03:06,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 1 [2023-11-22 21:03:06,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:06,295 INFO L349 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2023-11-22 21:03:06,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 1 [2023-11-22 21:03:06,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:06,317 INFO L349 Elim1Store]: treesize reduction 75, result has 1.3 percent of original size [2023-11-22 21:03:06,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 1 [2023-11-22 21:03:06,534 INFO L349 Elim1Store]: treesize reduction 78, result has 26.4 percent of original size [2023-11-22 21:03:06,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 27 treesize of output 45 [2023-11-22 21:03:07,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 152 [2023-11-22 21:03:08,303 INFO L349 Elim1Store]: treesize reduction 336, result has 17.8 percent of original size [2023-11-22 21:03:08,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 38 case distinctions, treesize of input 54 treesize of output 100 [2023-11-22 21:03:08,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 91 [2023-11-22 21:03:10,985 INFO L349 Elim1Store]: treesize reduction 360, result has 47.9 percent of original size [2023-11-22 21:03:10,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 17 select indices, 17 select index equivalence classes, 139 disjoint index pairs (out of 136 index pairs), introduced 23 new quantified variables, introduced 30 case distinctions, treesize of input 391 treesize of output 1442 [2023-11-22 21:03:11,998 INFO L349 Elim1Store]: treesize reduction 337, result has 9.2 percent of original size [2023-11-22 21:03:11,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 13 case distinctions, treesize of input 735 treesize of output 974 [2023-11-22 21:03:13,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:13,369 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:13,371 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:13,375 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:13,377 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:13,650 INFO L349 Elim1Store]: treesize reduction 516, result has 4.1 percent of original size [2023-11-22 21:03:13,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 25 case distinctions, treesize of input 1190 treesize of output 1434 [2023-11-22 21:03:14,657 INFO L349 Elim1Store]: treesize reduction 180, result has 37.7 percent of original size [2023-11-22 21:03:14,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 9 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 164 treesize of output 246 [2023-11-22 21:03:45,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:45,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:45,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:45,928 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:45,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:45,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:45,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:45,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:45,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:45,933 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:45,943 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:45,946 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:45,950 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:45,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 356 treesize of output 551 [2023-11-22 21:03:46,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,167 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:46,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,181 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:46,183 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:46,188 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:46,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 353 treesize of output 568 [2023-11-22 21:03:46,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,468 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:46,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,483 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:46,513 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:46,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 341 treesize of output 439 [2023-11-22 21:03:46,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,756 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:46,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:46,777 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:46,780 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:46,785 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:46,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 11 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 505 treesize of output 1582 [2023-11-22 21:03:47,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:47,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:47,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:47,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:47,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:47,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:47,716 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:47,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:47,759 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:47,831 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:47,845 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:47,911 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:47,917 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:47,926 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:47,944 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:47,964 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:47,973 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:47,976 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:48,029 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:48,036 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:48,055 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:48,121 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:48,174 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:48,201 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:48,244 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:48,256 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:48,267 INFO L224 Elim1Store]: Index analysis took 516 ms [2023-11-22 21:03:48,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 229 treesize of output 713 [2023-11-22 21:03:48,805 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:48,814 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:48,902 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:48,907 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:48,927 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:48,935 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:48,963 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:48,986 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:49,004 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:49,019 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:49,035 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:49,045 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:49,058 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:49,110 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:49,122 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:49,137 INFO L224 Elim1Store]: Index analysis took 363 ms [2023-11-22 21:03:49,139 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:49,139 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:49,140 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:49,140 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:49,141 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:49,141 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:49,142 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:49,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 534 [2023-11-22 21:03:49,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:49,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:49,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:49,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:50,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:50,000 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:50,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:50,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:50,013 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:50,017 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:50,058 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:50,069 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:50,089 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:50,101 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:50,102 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:50,102 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:50,115 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:50,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 343 treesize of output 363 [2023-11-22 21:03:50,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:50,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:50,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:50,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:50,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:50,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:50,744 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:50,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:50,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:50,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:50,746 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:50,756 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:50,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 10 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 493 treesize of output 1318 [2023-11-22 21:03:52,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:52,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:52,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:52,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:52,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:52,744 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:52,760 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:52,790 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:52,795 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:52,797 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:52,807 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:52,808 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:52,809 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:52,809 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:52,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 164 [2023-11-22 21:03:53,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,324 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:53,350 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:53,350 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:53,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 619 treesize of output 604 [2023-11-22 21:03:53,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,503 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:53,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,512 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:53,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 155 [2023-11-22 21:03:53,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,581 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:53,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:53,586 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:53,607 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:53,609 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:53,614 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:53,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 11 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 508 treesize of output 1540 [2023-11-22 21:03:59,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:59,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:59,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:59,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:59,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:59,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:59,431 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:59,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:59,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:59,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:59,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:03:59,435 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:59,446 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:59,448 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:59,452 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:03:59,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 388 treesize of output 864 [2023-11-22 21:04:02,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:02,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:02,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:02,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:02,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:02,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:02,519 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:02,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:02,531 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:02,534 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:02,540 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:02,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 385 treesize of output 891 [2023-11-22 21:04:03,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:03,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:03,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:03,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:03,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:03,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:03,005 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:03,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:03,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:03,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:03,008 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:03,017 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:03,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 373 treesize of output 711 [2023-11-22 21:04:03,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:03,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:03,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:03,675 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:03,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:03,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:03,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:03,687 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:03,690 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:03,696 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:03,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 348 treesize of output 563 [2023-11-22 21:04:04,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,008 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:04,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,013 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:04,024 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:04,026 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:04,031 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:04,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 351 treesize of output 546 [2023-11-22 21:04:04,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,603 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:04,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,608 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:04,616 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:04,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 336 treesize of output 434 [2023-11-22 21:04:04,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:04,793 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:04,809 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:04,812 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:04,914 INFO L349 Elim1Store]: treesize reduction 228, result has 9.2 percent of original size [2023-11-22 21:04:04,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 9 new quantified variables, introduced 20 case distinctions, treesize of input 852 treesize of output 1294 [2023-11-22 21:04:24,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:24,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:24,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:24,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:24,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:24,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:24,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:24,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:24,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:24,251 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:24,304 INFO L349 Elim1Store]: treesize reduction 171, result has 8.1 percent of original size [2023-11-22 21:04:24,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 694 treesize of output 992 [2023-11-22 21:04:35,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:35,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:35,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:35,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:35,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:35,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:35,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:35,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:35,531 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:35,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:35,546 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:35,547 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:35,634 INFO L349 Elim1Store]: treesize reduction 171, result has 8.1 percent of original size [2023-11-22 21:04:35,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 798 treesize of output 1234 [2023-11-22 21:04:41,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:41,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:41,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:41,236 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:41,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:41,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:41,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:41,252 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:41,255 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:41,263 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:41,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 11 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 495 treesize of output 1572 [2023-11-22 21:04:44,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:44,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:44,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:44,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:44,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:44,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:44,666 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:44,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:44,706 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:44,715 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:44,718 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:44,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 341 treesize of output 428 [2023-11-22 21:04:44,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 205 [2023-11-22 21:04:45,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:45,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:45,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:45,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:45,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:45,014 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:45,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:45,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:45,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:45,017 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:45,029 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:45,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 10 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 483 treesize of output 1308 [2023-11-22 21:04:45,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:45,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:45,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:45,738 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:45,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:45,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:45,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:45,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:45,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:45,743 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:45,755 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:45,757 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:45,761 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:45,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 11 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 498 treesize of output 1530 [2023-11-22 21:04:47,122 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:47,145 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:47,242 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:47,290 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:47,311 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:47,393 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:47,452 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:47,475 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:47,494 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:47,511 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:47,520 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:47,536 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:47,539 INFO L224 Elim1Store]: Index analysis took 423 ms [2023-11-22 21:04:47,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 230 treesize of output 536 [2023-11-22 21:04:48,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:48,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:48,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:48,533 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:48,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:48,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:48,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:48,564 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:48,577 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:48,643 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:48,644 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:48,645 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:48,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 437 treesize of output 523 [2023-11-22 21:04:50,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:50,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:50,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:50,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:50,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:50,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:50,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:50,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:04:50,442 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:04:50,445 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:04,385 WARN L293 SmtUtils]: Spent 13.92s on a formula simplification. DAG size of input: 336 DAG size of output: 91 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-22 21:05:04,385 INFO L349 Elim1Store]: treesize reduction 1179, result has 13.5 percent of original size [2023-11-22 21:05:04,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 18 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 20 new quantified variables, introduced 71 case distinctions, treesize of input 6742 treesize of output 9974 [2023-11-22 21:05:07,234 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:07,234 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:07,235 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:07,235 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:07,237 WARN L200 Elim1Store]: Array PQE input equivalent to false [2023-11-22 21:05:08,543 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:08,543 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:08,544 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:08,544 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:08,546 WARN L200 Elim1Store]: Array PQE input equivalent to false [2023-11-22 21:05:09,713 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:09,713 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:09,714 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:09,714 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:09,716 WARN L200 Elim1Store]: Array PQE input equivalent to false [2023-11-22 21:05:10,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:05:10,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:05:10,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:05:10,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:05:10,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:05:10,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:05:10,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:05:10,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:05:10,343 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:10,411 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:10,736 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:10,746 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:10,764 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:10,791 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:10,791 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:10,818 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:10,836 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:10,836 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:11,209 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:11,229 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:11,640 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:12,101 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:12,130 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:12,170 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:12,266 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:12,267 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:12,286 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:12,296 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:12,325 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:12,326 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:12,458 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:12,592 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:12,726 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:12,736 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:12,775 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:12,851 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:12,881 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:13,203 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:13,213 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:13,213 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:13,242 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:13,243 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:13,253 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:13,253 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:13,490 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:13,511 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:13,511 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:13,615 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:13,691 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:13,738 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:13,787 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:05:13,843 INFO L224 Elim1Store]: Index analysis took 3465 ms [2023-11-22 21:05:13,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 29 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 823 treesize of output 6168 Killed by 15