/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 23:29:48,674 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 23:29:48,709 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 23:29:48,712 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 23:29:48,712 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 23:29:48,736 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 23:29:48,736 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 23:29:48,737 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 23:29:48,738 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 23:29:48,741 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 23:29:48,741 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 23:29:48,741 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 23:29:48,742 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 23:29:48,743 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 23:29:48,743 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 23:29:48,743 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 23:29:48,743 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 23:29:48,743 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 23:29:48,744 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 23:29:48,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 23:29:48,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 23:29:48,744 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 23:29:48,745 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 23:29:48,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 23:29:48,745 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 23:29:48,745 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 23:29:48,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 23:29:48,745 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 23:29:48,746 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 23:29:48,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 23:29:48,747 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 23:29:48,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 23:29:48,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:29:48,747 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 23:29:48,747 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 23:29:48,748 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 23:29:48,748 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 23:29:48,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 23:29:48,748 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 23:29:48,748 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 23:29:48,748 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 23:29:48,748 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 23:29:48,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 23:29:48,749 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 23:29:48,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 23:29:48,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 23:29:48,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 23:29:48,971 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 23:29:48,971 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 23:29:48,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-15 23:29:50,021 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 23:29:50,281 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 23:29:50,282 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-15 23:29:50,298 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a218dc5a/a8bdf932b5924472a52daa1296119114/FLAG4cd97de02 [2023-12-15 23:29:50,308 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a218dc5a/a8bdf932b5924472a52daa1296119114 [2023-12-15 23:29:50,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 23:29:50,311 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 23:29:50,311 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 23:29:50,311 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 23:29:50,315 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 23:29:50,315 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:29:50" (1/1) ... [2023-12-15 23:29:50,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a18a912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50, skipping insertion in model container [2023-12-15 23:29:50,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:29:50" (1/1) ... [2023-12-15 23:29:50,379 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 23:29:50,628 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8635,8648] [2023-12-15 23:29:50,665 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15820,15833] [2023-12-15 23:29:50,672 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18017,18030] [2023-12-15 23:29:50,678 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[19041,19054] [2023-12-15 23:29:50,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:29:50,833 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 23:29:50,888 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8635,8648] [2023-12-15 23:29:50,905 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15820,15833] [2023-12-15 23:29:50,910 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18017,18030] [2023-12-15 23:29:50,912 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[19041,19054] [2023-12-15 23:29:50,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:29:50,985 INFO L206 MainTranslator]: Completed translation [2023-12-15 23:29:50,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50 WrapperNode [2023-12-15 23:29:50,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 23:29:50,988 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 23:29:50,988 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 23:29:50,988 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 23:29:50,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2023-12-15 23:29:51,017 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2023-12-15 23:29:51,082 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2838 [2023-12-15 23:29:51,082 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 23:29:51,083 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 23:29:51,083 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 23:29:51,083 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 23:29:51,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2023-12-15 23:29:51,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2023-12-15 23:29:51,103 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2023-12-15 23:29:51,145 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 23:29:51,145 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2023-12-15 23:29:51,145 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2023-12-15 23:29:51,186 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2023-12-15 23:29:51,194 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2023-12-15 23:29:51,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2023-12-15 23:29:51,218 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2023-12-15 23:29:51,235 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 23:29:51,235 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 23:29:51,236 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 23:29:51,236 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 23:29:51,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2023-12-15 23:29:51,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:29:51,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:29:51,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 23:29:51,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 23:29:51,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 23:29:51,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 23:29:51,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 23:29:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 23:29:51,485 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 23:29:51,487 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 23:29:52,556 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 23:29:52,592 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 23:29:52,592 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-15 23:29:52,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:29:52 BoogieIcfgContainer [2023-12-15 23:29:52,593 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 23:29:52,594 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 23:29:52,594 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 23:29:52,596 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 23:29:52,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:29:50" (1/3) ... [2023-12-15 23:29:52,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33587955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:29:52, skipping insertion in model container [2023-12-15 23:29:52,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (2/3) ... [2023-12-15 23:29:52,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33587955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:29:52, skipping insertion in model container [2023-12-15 23:29:52,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:29:52" (3/3) ... [2023-12-15 23:29:52,598 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-15 23:29:52,609 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 23:29:52,610 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-15 23:29:52,644 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 23:29:52,648 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;@28b305ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 23:29:52,649 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-15 23:29:52,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 455 states, 450 states have (on average 1.8533333333333333) internal successors, (834), 454 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:52,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-15 23:29:52,664 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:52,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:52,665 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:52,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:52,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1875598250, now seen corresponding path program 1 times [2023-12-15 23:29:52,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:52,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193060054] [2023-12-15 23:29:52,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:52,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:52,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:52,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:52,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193060054] [2023-12-15 23:29:52,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193060054] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:52,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:52,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:29:52,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628307038] [2023-12-15 23:29:52,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:52,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:29:52,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:52,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:29:52,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:52,990 INFO L87 Difference]: Start difference. First operand has 455 states, 450 states have (on average 1.8533333333333333) internal successors, (834), 454 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:53,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:53,092 INFO L93 Difference]: Finished difference Result 721 states and 1267 transitions. [2023-12-15 23:29:53,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:29:53,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-12-15 23:29:53,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:53,118 INFO L225 Difference]: With dead ends: 721 [2023-12-15 23:29:53,119 INFO L226 Difference]: Without dead ends: 570 [2023-12-15 23:29:53,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:53,123 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 437 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:53,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1408 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:29:53,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2023-12-15 23:29:53,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 564. [2023-12-15 23:29:53,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 560 states have (on average 1.3446428571428573) internal successors, (753), 563 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:53,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 753 transitions. [2023-12-15 23:29:53,236 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 753 transitions. Word has length 50 [2023-12-15 23:29:53,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:53,236 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 753 transitions. [2023-12-15 23:29:53,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:53,237 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 753 transitions. [2023-12-15 23:29:53,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-15 23:29:53,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:53,240 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:53,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 23:29:53,240 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:53,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:53,241 INFO L85 PathProgramCache]: Analyzing trace with hash -2061015356, now seen corresponding path program 1 times [2023-12-15 23:29:53,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:53,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320538797] [2023-12-15 23:29:53,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:53,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:53,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:53,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:53,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320538797] [2023-12-15 23:29:53,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320538797] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:53,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:53,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:29:53,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548320390] [2023-12-15 23:29:53,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:53,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:29:53,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:53,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:29:53,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:53,334 INFO L87 Difference]: Start difference. First operand 564 states and 753 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:53,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:53,401 INFO L93 Difference]: Finished difference Result 993 states and 1378 transitions. [2023-12-15 23:29:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:29:53,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-12-15 23:29:53,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:53,407 INFO L225 Difference]: With dead ends: 993 [2023-12-15 23:29:53,407 INFO L226 Difference]: Without dead ends: 780 [2023-12-15 23:29:53,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:53,418 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 314 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:53,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1015 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:29:53,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2023-12-15 23:29:53,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 773. [2023-12-15 23:29:53,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 769 states have (on average 1.3719115734720415) internal successors, (1055), 772 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:53,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1055 transitions. [2023-12-15 23:29:53,435 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1055 transitions. Word has length 50 [2023-12-15 23:29:53,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:53,436 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 1055 transitions. [2023-12-15 23:29:53,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:53,436 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1055 transitions. [2023-12-15 23:29:53,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-15 23:29:53,442 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:53,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:53,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 23:29:53,443 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:53,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:53,443 INFO L85 PathProgramCache]: Analyzing trace with hash 2089668058, now seen corresponding path program 1 times [2023-12-15 23:29:53,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:53,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963021000] [2023-12-15 23:29:53,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:53,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:53,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:53,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:53,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963021000] [2023-12-15 23:29:53,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963021000] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:53,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:53,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:29:53,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397797729] [2023-12-15 23:29:53,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:53,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:29:53,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:53,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:29:53,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:29:53,577 INFO L87 Difference]: Start difference. First operand 773 states and 1055 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:53,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:53,873 INFO L93 Difference]: Finished difference Result 1715 states and 2414 transitions. [2023-12-15 23:29:53,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:29:53,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-12-15 23:29:53,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:53,877 INFO L225 Difference]: With dead ends: 1715 [2023-12-15 23:29:53,877 INFO L226 Difference]: Without dead ends: 1058 [2023-12-15 23:29:53,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:29:53,879 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 1743 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:53,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 389 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:29:53,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2023-12-15 23:29:53,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1052. [2023-12-15 23:29:53,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 1048 states have (on average 1.409351145038168) internal successors, (1477), 1051 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:53,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1477 transitions. [2023-12-15 23:29:53,896 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1477 transitions. Word has length 50 [2023-12-15 23:29:53,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:53,896 INFO L495 AbstractCegarLoop]: Abstraction has 1052 states and 1477 transitions. [2023-12-15 23:29:53,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:53,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1477 transitions. [2023-12-15 23:29:53,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-15 23:29:53,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:53,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:53,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 23:29:53,898 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:53,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:53,899 INFO L85 PathProgramCache]: Analyzing trace with hash -941949597, now seen corresponding path program 1 times [2023-12-15 23:29:53,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:53,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136304124] [2023-12-15 23:29:53,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:53,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:53,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:53,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:53,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136304124] [2023-12-15 23:29:53,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136304124] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:53,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:53,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:29:53,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519833137] [2023-12-15 23:29:53,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:53,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:29:53,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:53,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:29:53,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:53,946 INFO L87 Difference]: Start difference. First operand 1052 states and 1477 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:53,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:53,981 INFO L93 Difference]: Finished difference Result 2098 states and 2964 transitions. [2023-12-15 23:29:53,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:29:53,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-12-15 23:29:53,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:53,985 INFO L225 Difference]: With dead ends: 2098 [2023-12-15 23:29:53,985 INFO L226 Difference]: Without dead ends: 1398 [2023-12-15 23:29:53,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:53,987 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 364 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:53,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 927 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:29:53,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1398 states. [2023-12-15 23:29:54,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1398 to 1384. [2023-12-15 23:29:54,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1380 states have (on average 1.372463768115942) internal successors, (1894), 1383 states have internal predecessors, (1894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:54,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 1894 transitions. [2023-12-15 23:29:54,009 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 1894 transitions. Word has length 51 [2023-12-15 23:29:54,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:54,009 INFO L495 AbstractCegarLoop]: Abstraction has 1384 states and 1894 transitions. [2023-12-15 23:29:54,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:54,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 1894 transitions. [2023-12-15 23:29:54,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-15 23:29:54,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:54,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:54,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 23:29:54,011 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:54,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:54,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1880466014, now seen corresponding path program 1 times [2023-12-15 23:29:54,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:54,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720705059] [2023-12-15 23:29:54,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:54,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:54,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:54,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:54,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720705059] [2023-12-15 23:29:54,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720705059] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:54,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:54,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:29:54,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417773833] [2023-12-15 23:29:54,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:54,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:29:54,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:54,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:29:54,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:29:54,084 INFO L87 Difference]: Start difference. First operand 1384 states and 1894 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:54,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:54,331 INFO L93 Difference]: Finished difference Result 2979 states and 4124 transitions. [2023-12-15 23:29:54,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:29:54,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-12-15 23:29:54,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:54,336 INFO L225 Difference]: With dead ends: 2979 [2023-12-15 23:29:54,336 INFO L226 Difference]: Without dead ends: 1766 [2023-12-15 23:29:54,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:29:54,338 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1527 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:54,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 365 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:29:54,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2023-12-15 23:29:54,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1754. [2023-12-15 23:29:54,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1754 states, 1750 states have (on average 1.3777142857142857) internal successors, (2411), 1753 states have internal predecessors, (2411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:54,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 2411 transitions. [2023-12-15 23:29:54,367 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 2411 transitions. Word has length 51 [2023-12-15 23:29:54,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:54,368 INFO L495 AbstractCegarLoop]: Abstraction has 1754 states and 2411 transitions. [2023-12-15 23:29:54,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:54,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 2411 transitions. [2023-12-15 23:29:54,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-15 23:29:54,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:54,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:54,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 23:29:54,371 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:54,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:54,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1402460387, now seen corresponding path program 1 times [2023-12-15 23:29:54,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:54,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546912813] [2023-12-15 23:29:54,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:54,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:54,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:54,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:54,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546912813] [2023-12-15 23:29:54,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546912813] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:54,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:54,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:29:54,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510575361] [2023-12-15 23:29:54,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:54,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:29:54,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:54,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:29:54,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:29:54,462 INFO L87 Difference]: Start difference. First operand 1754 states and 2411 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:54,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:54,678 INFO L93 Difference]: Finished difference Result 3899 states and 5392 transitions. [2023-12-15 23:29:54,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:29:54,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-12-15 23:29:54,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:54,683 INFO L225 Difference]: With dead ends: 3899 [2023-12-15 23:29:54,683 INFO L226 Difference]: Without dead ends: 2316 [2023-12-15 23:29:54,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:29:54,685 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 1376 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:54,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 333 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:29:54,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states. [2023-12-15 23:29:54,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 2300. [2023-12-15 23:29:54,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2300 states, 2296 states have (on average 1.3702090592334495) internal successors, (3146), 2299 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:54,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2300 states to 2300 states and 3146 transitions. [2023-12-15 23:29:54,716 INFO L78 Accepts]: Start accepts. Automaton has 2300 states and 3146 transitions. Word has length 52 [2023-12-15 23:29:54,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:54,716 INFO L495 AbstractCegarLoop]: Abstraction has 2300 states and 3146 transitions. [2023-12-15 23:29:54,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:54,716 INFO L276 IsEmpty]: Start isEmpty. Operand 2300 states and 3146 transitions. [2023-12-15 23:29:54,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-15 23:29:54,717 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:54,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:54,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 23:29:54,718 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:54,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:54,718 INFO L85 PathProgramCache]: Analyzing trace with hash -78307905, now seen corresponding path program 1 times [2023-12-15 23:29:54,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:54,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462524190] [2023-12-15 23:29:54,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:54,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:54,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:54,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:54,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462524190] [2023-12-15 23:29:54,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462524190] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:54,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:54,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:29:54,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890007858] [2023-12-15 23:29:54,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:54,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:29:54,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:54,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:29:54,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:29:54,842 INFO L87 Difference]: Start difference. First operand 2300 states and 3146 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:55,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:55,215 INFO L93 Difference]: Finished difference Result 7376 states and 10305 transitions. [2023-12-15 23:29:55,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:29:55,215 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-15 23:29:55,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:55,229 INFO L225 Difference]: With dead ends: 7376 [2023-12-15 23:29:55,229 INFO L226 Difference]: Without dead ends: 6334 [2023-12-15 23:29:55,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:29:55,232 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 2798 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2798 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:55,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2798 Valid, 597 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:29:55,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6334 states. [2023-12-15 23:29:55,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6334 to 2314. [2023-12-15 23:29:55,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 2310 states have (on average 1.3696969696969696) internal successors, (3164), 2313 states have internal predecessors, (3164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:55,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3164 transitions. [2023-12-15 23:29:55,293 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3164 transitions. Word has length 53 [2023-12-15 23:29:55,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:55,294 INFO L495 AbstractCegarLoop]: Abstraction has 2314 states and 3164 transitions. [2023-12-15 23:29:55,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:55,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3164 transitions. [2023-12-15 23:29:55,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-15 23:29:55,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:55,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:55,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 23:29:55,295 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:55,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:55,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1272319552, now seen corresponding path program 1 times [2023-12-15 23:29:55,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:55,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123656057] [2023-12-15 23:29:55,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:55,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:55,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:55,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:55,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123656057] [2023-12-15 23:29:55,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123656057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:55,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:55,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:29:55,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110095558] [2023-12-15 23:29:55,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:55,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:29:55,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:55,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:29:55,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:29:55,404 INFO L87 Difference]: Start difference. First operand 2314 states and 3164 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:55,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:55,847 INFO L93 Difference]: Finished difference Result 8132 states and 11422 transitions. [2023-12-15 23:29:55,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:29:55,847 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-15 23:29:55,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:55,863 INFO L225 Difference]: With dead ends: 8132 [2023-12-15 23:29:55,864 INFO L226 Difference]: Without dead ends: 7285 [2023-12-15 23:29:55,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:29:55,867 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 2116 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2116 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:55,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2116 Valid, 755 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:29:55,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7285 states. [2023-12-15 23:29:55,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7285 to 2336. [2023-12-15 23:29:55,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2332 states have (on average 1.3700686106346485) internal successors, (3195), 2335 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:55,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 3195 transitions. [2023-12-15 23:29:55,934 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 3195 transitions. Word has length 53 [2023-12-15 23:29:55,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:55,934 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 3195 transitions. [2023-12-15 23:29:55,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:55,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 3195 transitions. [2023-12-15 23:29:55,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-15 23:29:55,936 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:55,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:55,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 23:29:55,937 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:55,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:55,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1821294495, now seen corresponding path program 1 times [2023-12-15 23:29:55,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:55,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849790052] [2023-12-15 23:29:55,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:55,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:56,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:56,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:56,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849790052] [2023-12-15 23:29:56,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849790052] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:56,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:56,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:29:56,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284049754] [2023-12-15 23:29:56,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:56,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:29:56,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:56,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:29:56,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:29:56,016 INFO L87 Difference]: Start difference. First operand 2336 states and 3195 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:56,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:56,333 INFO L93 Difference]: Finished difference Result 9897 states and 13850 transitions. [2023-12-15 23:29:56,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:29:56,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-15 23:29:56,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:56,354 INFO L225 Difference]: With dead ends: 9897 [2023-12-15 23:29:56,354 INFO L226 Difference]: Without dead ends: 8929 [2023-12-15 23:29:56,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:29:56,357 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 3275 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3275 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:56,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3275 Valid, 653 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:29:56,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8929 states. [2023-12-15 23:29:56,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8929 to 2370. [2023-12-15 23:29:56,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2370 states, 2366 states have (on average 1.3689771766694843) internal successors, (3239), 2369 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:56,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2370 states to 2370 states and 3239 transitions. [2023-12-15 23:29:56,410 INFO L78 Accepts]: Start accepts. Automaton has 2370 states and 3239 transitions. Word has length 53 [2023-12-15 23:29:56,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:56,410 INFO L495 AbstractCegarLoop]: Abstraction has 2370 states and 3239 transitions. [2023-12-15 23:29:56,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:56,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2370 states and 3239 transitions. [2023-12-15 23:29:56,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-15 23:29:56,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:56,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:56,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 23:29:56,412 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:56,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:56,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1007743463, now seen corresponding path program 1 times [2023-12-15 23:29:56,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:56,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156525920] [2023-12-15 23:29:56,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:56,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:56,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:56,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:56,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156525920] [2023-12-15 23:29:56,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156525920] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:56,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:56,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:29:56,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886342973] [2023-12-15 23:29:56,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:56,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:29:56,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:56,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:29:56,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:29:56,558 INFO L87 Difference]: Start difference. First operand 2370 states and 3239 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:56,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:56,993 INFO L93 Difference]: Finished difference Result 5803 states and 8100 transitions. [2023-12-15 23:29:56,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 23:29:56,993 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-15 23:29:56,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:56,999 INFO L225 Difference]: With dead ends: 5803 [2023-12-15 23:29:56,999 INFO L226 Difference]: Without dead ends: 4259 [2023-12-15 23:29:57,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-12-15 23:29:57,001 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1889 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1889 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:57,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1889 Valid, 927 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:29:57,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4259 states. [2023-12-15 23:29:57,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4259 to 2283. [2023-12-15 23:29:57,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2283 states, 2279 states have (on average 1.3677051338306274) internal successors, (3117), 2282 states have internal predecessors, (3117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:57,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 3117 transitions. [2023-12-15 23:29:57,029 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 3117 transitions. Word has length 54 [2023-12-15 23:29:57,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:57,030 INFO L495 AbstractCegarLoop]: Abstraction has 2283 states and 3117 transitions. [2023-12-15 23:29:57,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:57,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 3117 transitions. [2023-12-15 23:29:57,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-15 23:29:57,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:57,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:57,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 23:29:57,031 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:57,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:57,032 INFO L85 PathProgramCache]: Analyzing trace with hash -649389773, now seen corresponding path program 1 times [2023-12-15 23:29:57,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:57,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984847011] [2023-12-15 23:29:57,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:57,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:57,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:57,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:57,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984847011] [2023-12-15 23:29:57,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984847011] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:57,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:57,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:29:57,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696518156] [2023-12-15 23:29:57,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:57,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:29:57,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:57,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:29:57,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:29:57,205 INFO L87 Difference]: Start difference. First operand 2283 states and 3117 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:57,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:57,798 INFO L93 Difference]: Finished difference Result 7119 states and 9978 transitions. [2023-12-15 23:29:57,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:29:57,799 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-15 23:29:57,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:57,809 INFO L225 Difference]: With dead ends: 7119 [2023-12-15 23:29:57,810 INFO L226 Difference]: Without dead ends: 5729 [2023-12-15 23:29:57,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:29:57,815 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 1589 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:57,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1589 Valid, 1235 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 23:29:57,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5729 states. [2023-12-15 23:29:57,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5729 to 2254. [2023-12-15 23:29:57,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2254 states, 2250 states have (on average 1.3671111111111112) internal successors, (3076), 2253 states have internal predecessors, (3076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:57,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2254 states to 2254 states and 3076 transitions. [2023-12-15 23:29:57,867 INFO L78 Accepts]: Start accepts. Automaton has 2254 states and 3076 transitions. Word has length 54 [2023-12-15 23:29:57,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:57,867 INFO L495 AbstractCegarLoop]: Abstraction has 2254 states and 3076 transitions. [2023-12-15 23:29:57,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:57,867 INFO L276 IsEmpty]: Start isEmpty. Operand 2254 states and 3076 transitions. [2023-12-15 23:29:57,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-15 23:29:57,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:57,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:57,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 23:29:57,869 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:57,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:57,869 INFO L85 PathProgramCache]: Analyzing trace with hash 2094955992, now seen corresponding path program 1 times [2023-12-15 23:29:57,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:57,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508270770] [2023-12-15 23:29:57,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:57,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:57,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:58,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:58,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:58,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508270770] [2023-12-15 23:29:58,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508270770] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:58,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:58,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:29:58,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967889550] [2023-12-15 23:29:58,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:58,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:29:58,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:58,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:29:58,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:29:58,025 INFO L87 Difference]: Start difference. First operand 2254 states and 3076 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:58,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:58,584 INFO L93 Difference]: Finished difference Result 5395 states and 7540 transitions. [2023-12-15 23:29:58,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:29:58,585 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-15 23:29:58,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:58,592 INFO L225 Difference]: With dead ends: 5395 [2023-12-15 23:29:58,592 INFO L226 Difference]: Without dead ends: 5390 [2023-12-15 23:29:58,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-15 23:29:58,594 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 1239 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:58,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1239 Valid, 1220 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 23:29:58,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5390 states. [2023-12-15 23:29:58,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5390 to 2254. [2023-12-15 23:29:58,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2254 states, 2250 states have (on average 1.3662222222222222) internal successors, (3074), 2253 states have internal predecessors, (3074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:58,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2254 states to 2254 states and 3074 transitions. [2023-12-15 23:29:58,639 INFO L78 Accepts]: Start accepts. Automaton has 2254 states and 3074 transitions. Word has length 54 [2023-12-15 23:29:58,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:58,639 INFO L495 AbstractCegarLoop]: Abstraction has 2254 states and 3074 transitions. [2023-12-15 23:29:58,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:58,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2254 states and 3074 transitions. [2023-12-15 23:29:58,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-15 23:29:58,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:58,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:58,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 23:29:58,642 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:58,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:58,642 INFO L85 PathProgramCache]: Analyzing trace with hash -544921047, now seen corresponding path program 1 times [2023-12-15 23:29:58,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:58,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878939930] [2023-12-15 23:29:58,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:58,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:58,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:58,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:58,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878939930] [2023-12-15 23:29:58,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878939930] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:58,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:58,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:29:58,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333957082] [2023-12-15 23:29:58,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:58,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:29:58,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:58,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:29:58,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:58,700 INFO L87 Difference]: Start difference. First operand 2254 states and 3074 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:58,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:58,733 INFO L93 Difference]: Finished difference Result 3199 states and 4402 transitions. [2023-12-15 23:29:58,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:29:58,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-15 23:29:58,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:58,736 INFO L225 Difference]: With dead ends: 3199 [2023-12-15 23:29:58,736 INFO L226 Difference]: Without dead ends: 2261 [2023-12-15 23:29:58,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:58,737 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 222 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:58,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 789 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:29:58,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2023-12-15 23:29:58,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2254. [2023-12-15 23:29:58,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2254 states, 2250 states have (on average 1.3528888888888888) internal successors, (3044), 2253 states have internal predecessors, (3044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:58,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2254 states to 2254 states and 3044 transitions. [2023-12-15 23:29:58,765 INFO L78 Accepts]: Start accepts. Automaton has 2254 states and 3044 transitions. Word has length 55 [2023-12-15 23:29:58,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:58,765 INFO L495 AbstractCegarLoop]: Abstraction has 2254 states and 3044 transitions. [2023-12-15 23:29:58,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:58,765 INFO L276 IsEmpty]: Start isEmpty. Operand 2254 states and 3044 transitions. [2023-12-15 23:29:58,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-15 23:29:58,767 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:58,767 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:58,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 23:29:58,767 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:58,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:58,768 INFO L85 PathProgramCache]: Analyzing trace with hash -171324051, now seen corresponding path program 1 times [2023-12-15 23:29:58,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:58,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904581083] [2023-12-15 23:29:58,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:58,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:58,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:58,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:58,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904581083] [2023-12-15 23:29:58,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904581083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:58,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:58,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:29:58,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375562591] [2023-12-15 23:29:58,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:58,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:29:58,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:58,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:29:58,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:58,808 INFO L87 Difference]: Start difference. First operand 2254 states and 3044 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:58,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:58,833 INFO L93 Difference]: Finished difference Result 3256 states and 4434 transitions. [2023-12-15 23:29:58,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:29:58,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-15 23:29:58,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:58,836 INFO L225 Difference]: With dead ends: 3256 [2023-12-15 23:29:58,836 INFO L226 Difference]: Without dead ends: 2260 [2023-12-15 23:29:58,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:58,838 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 238 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:58,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 794 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:29:58,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2023-12-15 23:29:58,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 2254. [2023-12-15 23:29:58,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2254 states, 2250 states have (on average 1.3404444444444445) internal successors, (3016), 2253 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:58,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2254 states to 2254 states and 3016 transitions. [2023-12-15 23:29:58,864 INFO L78 Accepts]: Start accepts. Automaton has 2254 states and 3016 transitions. Word has length 55 [2023-12-15 23:29:58,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:58,864 INFO L495 AbstractCegarLoop]: Abstraction has 2254 states and 3016 transitions. [2023-12-15 23:29:58,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:58,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2254 states and 3016 transitions. [2023-12-15 23:29:58,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-15 23:29:58,866 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:58,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:58,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 23:29:58,866 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:58,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:58,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1692855010, now seen corresponding path program 1 times [2023-12-15 23:29:58,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:58,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822291534] [2023-12-15 23:29:58,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:58,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:58,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:58,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:58,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822291534] [2023-12-15 23:29:58,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822291534] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:58,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:58,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:29:58,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734354298] [2023-12-15 23:29:58,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:58,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:29:58,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:58,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:29:58,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:58,907 INFO L87 Difference]: Start difference. First operand 2254 states and 3016 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:58,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:58,932 INFO L93 Difference]: Finished difference Result 3344 states and 4504 transitions. [2023-12-15 23:29:58,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:29:58,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-15 23:29:58,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:58,935 INFO L225 Difference]: With dead ends: 3344 [2023-12-15 23:29:58,935 INFO L226 Difference]: Without dead ends: 2245 [2023-12-15 23:29:58,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:58,936 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 257 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:58,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 809 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:29:58,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2245 states. [2023-12-15 23:29:58,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2245 to 2239. [2023-12-15 23:29:58,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2239 states, 2235 states have (on average 1.3208053691275168) internal successors, (2952), 2238 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:58,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 2952 transitions. [2023-12-15 23:29:58,962 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 2952 transitions. Word has length 55 [2023-12-15 23:29:58,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:58,962 INFO L495 AbstractCegarLoop]: Abstraction has 2239 states and 2952 transitions. [2023-12-15 23:29:58,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:58,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 2952 transitions. [2023-12-15 23:29:58,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-15 23:29:58,964 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:58,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:58,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 23:29:58,964 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:58,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:58,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1901622388, now seen corresponding path program 1 times [2023-12-15 23:29:58,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:58,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644985406] [2023-12-15 23:29:58,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:58,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:58,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:58,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:58,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644985406] [2023-12-15 23:29:58,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644985406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:58,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:58,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:29:58,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033965901] [2023-12-15 23:29:58,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:58,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:29:58,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:58,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:29:58,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:59,000 INFO L87 Difference]: Start difference. First operand 2239 states and 2952 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:59,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:59,045 INFO L93 Difference]: Finished difference Result 4003 states and 5340 transitions. [2023-12-15 23:29:59,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:29:59,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2023-12-15 23:29:59,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:59,049 INFO L225 Difference]: With dead ends: 4003 [2023-12-15 23:29:59,049 INFO L226 Difference]: Without dead ends: 2743 [2023-12-15 23:29:59,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:59,051 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 346 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:59,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 546 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:29:59,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2743 states. [2023-12-15 23:29:59,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2743 to 2057. [2023-12-15 23:29:59,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2057 states, 2053 states have (on average 1.3229420360448125) internal successors, (2716), 2056 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:59,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2716 transitions. [2023-12-15 23:29:59,078 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2716 transitions. Word has length 56 [2023-12-15 23:29:59,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:59,079 INFO L495 AbstractCegarLoop]: Abstraction has 2057 states and 2716 transitions. [2023-12-15 23:29:59,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:59,079 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2716 transitions. [2023-12-15 23:29:59,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-15 23:29:59,081 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:59,081 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:59,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 23:29:59,081 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:59,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:59,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1344491359, now seen corresponding path program 1 times [2023-12-15 23:29:59,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:59,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009505047] [2023-12-15 23:29:59,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:59,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:59,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:59,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:59,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009505047] [2023-12-15 23:29:59,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009505047] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:59,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:59,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-15 23:29:59,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205179906] [2023-12-15 23:29:59,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:59,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-15 23:29:59,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:59,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-15 23:29:59,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-15 23:29:59,975 INFO L87 Difference]: Start difference. First operand 2057 states and 2716 transitions. Second operand has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:01,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:01,950 INFO L93 Difference]: Finished difference Result 3829 states and 5090 transitions. [2023-12-15 23:30:01,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-15 23:30:01,950 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-12-15 23:30:01,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:01,955 INFO L225 Difference]: With dead ends: 3829 [2023-12-15 23:30:01,956 INFO L226 Difference]: Without dead ends: 3825 [2023-12-15 23:30:01,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=204, Invalid=986, Unknown=0, NotChecked=0, Total=1190 [2023-12-15 23:30:01,957 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 3597 mSDsluCounter, 4765 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3597 SdHoareTripleChecker+Valid, 5248 SdHoareTripleChecker+Invalid, 2680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:01,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3597 Valid, 5248 Invalid, 2680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2676 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 23:30:01,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3825 states. [2023-12-15 23:30:01,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3825 to 2069. [2023-12-15 23:30:01,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 2065 states have (on average 1.3234866828087166) internal successors, (2733), 2068 states have internal predecessors, (2733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:01,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 2733 transitions. [2023-12-15 23:30:01,981 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 2733 transitions. Word has length 57 [2023-12-15 23:30:01,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:01,981 INFO L495 AbstractCegarLoop]: Abstraction has 2069 states and 2733 transitions. [2023-12-15 23:30:01,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:01,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 2733 transitions. [2023-12-15 23:30:01,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-15 23:30:01,983 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:01,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:01,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 23:30:01,983 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:01,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:01,984 INFO L85 PathProgramCache]: Analyzing trace with hash 972832554, now seen corresponding path program 1 times [2023-12-15 23:30:01,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:01,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978282346] [2023-12-15 23:30:01,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:01,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:02,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:02,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:02,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978282346] [2023-12-15 23:30:02,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978282346] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:02,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:02,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 23:30:02,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147526325] [2023-12-15 23:30:02,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:02,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 23:30:02,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:02,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 23:30:02,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-15 23:30:02,313 INFO L87 Difference]: Start difference. First operand 2069 states and 2733 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:02,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:02,865 INFO L93 Difference]: Finished difference Result 3609 states and 4822 transitions. [2023-12-15 23:30:02,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 23:30:02,866 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-12-15 23:30:02,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:02,871 INFO L225 Difference]: With dead ends: 3609 [2023-12-15 23:30:02,871 INFO L226 Difference]: Without dead ends: 3383 [2023-12-15 23:30:02,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2023-12-15 23:30:02,872 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 2449 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2449 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:02,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2449 Valid, 2433 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:30:02,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states. [2023-12-15 23:30:02,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 2011. [2023-12-15 23:30:02,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2011 states, 2008 states have (on average 1.325199203187251) internal successors, (2661), 2010 states have internal predecessors, (2661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:02,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2011 states to 2011 states and 2661 transitions. [2023-12-15 23:30:02,896 INFO L78 Accepts]: Start accepts. Automaton has 2011 states and 2661 transitions. Word has length 57 [2023-12-15 23:30:02,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:02,896 INFO L495 AbstractCegarLoop]: Abstraction has 2011 states and 2661 transitions. [2023-12-15 23:30:02,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:02,896 INFO L276 IsEmpty]: Start isEmpty. Operand 2011 states and 2661 transitions. [2023-12-15 23:30:02,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-15 23:30:02,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:02,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:02,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 23:30:02,898 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:02,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:02,898 INFO L85 PathProgramCache]: Analyzing trace with hash -45383322, now seen corresponding path program 1 times [2023-12-15 23:30:02,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:02,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380484740] [2023-12-15 23:30:02,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:02,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:02,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:02,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:02,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380484740] [2023-12-15 23:30:02,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380484740] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:02,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:02,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:30:02,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040853247] [2023-12-15 23:30:02,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:02,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:30:02,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:02,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:30:02,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:30:02,931 INFO L87 Difference]: Start difference. First operand 2011 states and 2661 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:02,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:02,975 INFO L93 Difference]: Finished difference Result 3660 states and 4889 transitions. [2023-12-15 23:30:02,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:30:02,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-12-15 23:30:02,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:02,979 INFO L225 Difference]: With dead ends: 3660 [2023-12-15 23:30:02,979 INFO L226 Difference]: Without dead ends: 2416 [2023-12-15 23:30:02,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:30:02,980 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 260 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:02,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 406 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:30:02,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2023-12-15 23:30:02,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 1884. [2023-12-15 23:30:02,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1884 states, 1882 states have (on average 1.3289054197662062) internal successors, (2501), 1883 states have internal predecessors, (2501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:02,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2501 transitions. [2023-12-15 23:30:02,998 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2501 transitions. Word has length 57 [2023-12-15 23:30:02,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:02,998 INFO L495 AbstractCegarLoop]: Abstraction has 1884 states and 2501 transitions. [2023-12-15 23:30:02,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:02,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2501 transitions. [2023-12-15 23:30:03,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-15 23:30:03,000 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:03,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:03,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 23:30:03,000 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:03,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:03,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1565233070, now seen corresponding path program 1 times [2023-12-15 23:30:03,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:03,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920460643] [2023-12-15 23:30:03,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:03,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:03,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:03,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:03,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920460643] [2023-12-15 23:30:03,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920460643] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:03,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:03,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-15 23:30:03,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177866392] [2023-12-15 23:30:03,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:03,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-15 23:30:03,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:03,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-15 23:30:03,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:30:03,584 INFO L87 Difference]: Start difference. First operand 1884 states and 2501 transitions. Second operand has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:05,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:05,107 INFO L93 Difference]: Finished difference Result 4260 states and 5709 transitions. [2023-12-15 23:30:05,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-15 23:30:05,108 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2023-12-15 23:30:05,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:05,113 INFO L225 Difference]: With dead ends: 4260 [2023-12-15 23:30:05,113 INFO L226 Difference]: Without dead ends: 4182 [2023-12-15 23:30:05,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=218, Invalid=774, Unknown=0, NotChecked=0, Total=992 [2023-12-15 23:30:05,115 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 2160 mSDsluCounter, 3740 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 4170 SdHoareTripleChecker+Invalid, 1652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:05,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2160 Valid, 4170 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-15 23:30:05,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4182 states. [2023-12-15 23:30:05,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4182 to 1875. [2023-12-15 23:30:05,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1875 states, 1874 states have (on average 1.3281750266808965) internal successors, (2489), 1874 states have internal predecessors, (2489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:05,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2489 transitions. [2023-12-15 23:30:05,137 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2489 transitions. Word has length 58 [2023-12-15 23:30:05,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:05,137 INFO L495 AbstractCegarLoop]: Abstraction has 1875 states and 2489 transitions. [2023-12-15 23:30:05,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:05,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2489 transitions. [2023-12-15 23:30:05,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-15 23:30:05,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:05,140 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:05,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-15 23:30:05,140 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:05,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:05,140 INFO L85 PathProgramCache]: Analyzing trace with hash -65378401, now seen corresponding path program 1 times [2023-12-15 23:30:05,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:05,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775111431] [2023-12-15 23:30:05,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:05,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:05,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:05,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:05,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775111431] [2023-12-15 23:30:05,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775111431] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:05,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:05,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:30:05,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400840970] [2023-12-15 23:30:05,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:05,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:30:05,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:05,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:30:05,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:30:05,215 INFO L87 Difference]: Start difference. First operand 1875 states and 2489 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:05,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:05,266 INFO L93 Difference]: Finished difference Result 4322 states and 5898 transitions. [2023-12-15 23:30:05,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:30:05,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-15 23:30:05,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:05,270 INFO L225 Difference]: With dead ends: 4322 [2023-12-15 23:30:05,270 INFO L226 Difference]: Without dead ends: 3204 [2023-12-15 23:30:05,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:30:05,272 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 1034 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:05,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 715 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:30:05,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3204 states. [2023-12-15 23:30:05,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3204 to 2814. [2023-12-15 23:30:05,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 2813 states have (on average 1.3295414148595806) internal successors, (3740), 2813 states have internal predecessors, (3740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:05,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 3740 transitions. [2023-12-15 23:30:05,296 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 3740 transitions. Word has length 67 [2023-12-15 23:30:05,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:05,296 INFO L495 AbstractCegarLoop]: Abstraction has 2814 states and 3740 transitions. [2023-12-15 23:30:05,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:05,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 3740 transitions. [2023-12-15 23:30:05,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-15 23:30:05,301 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:05,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:05,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-15 23:30:05,301 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:05,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:05,301 INFO L85 PathProgramCache]: Analyzing trace with hash -510700073, now seen corresponding path program 1 times [2023-12-15 23:30:05,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:05,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570049912] [2023-12-15 23:30:05,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:05,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:05,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:05,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:05,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570049912] [2023-12-15 23:30:05,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570049912] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:05,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:05,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:30:05,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447891263] [2023-12-15 23:30:05,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:05,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:30:05,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:05,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:30:05,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:30:05,364 INFO L87 Difference]: Start difference. First operand 2814 states and 3740 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:05,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:05,423 INFO L93 Difference]: Finished difference Result 2820 states and 3743 transitions. [2023-12-15 23:30:05,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:30:05,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-12-15 23:30:05,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:05,426 INFO L225 Difference]: With dead ends: 2820 [2023-12-15 23:30:05,426 INFO L226 Difference]: Without dead ends: 2349 [2023-12-15 23:30:05,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:30:05,427 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 592 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:05,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 753 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:30:05,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2023-12-15 23:30:05,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 2345. [2023-12-15 23:30:05,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 2344 states have (on average 1.333617747440273) internal successors, (3126), 2344 states have internal predecessors, (3126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:05,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 3126 transitions. [2023-12-15 23:30:05,444 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 3126 transitions. Word has length 68 [2023-12-15 23:30:05,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:05,444 INFO L495 AbstractCegarLoop]: Abstraction has 2345 states and 3126 transitions. [2023-12-15 23:30:05,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:05,444 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 3126 transitions. [2023-12-15 23:30:05,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-15 23:30:05,447 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:05,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:05,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-15 23:30:05,447 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:05,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:05,448 INFO L85 PathProgramCache]: Analyzing trace with hash 936875869, now seen corresponding path program 1 times [2023-12-15 23:30:05,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:05,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421030273] [2023-12-15 23:30:05,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:05,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:05,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:05,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:05,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421030273] [2023-12-15 23:30:05,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421030273] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:05,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:05,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:30:05,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246908148] [2023-12-15 23:30:05,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:05,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:30:05,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:05,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:30:05,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:30:05,508 INFO L87 Difference]: Start difference. First operand 2345 states and 3126 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:05,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:05,528 INFO L93 Difference]: Finished difference Result 5465 states and 7398 transitions. [2023-12-15 23:30:05,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:30:05,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-15 23:30:05,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:05,531 INFO L225 Difference]: With dead ends: 5465 [2023-12-15 23:30:05,531 INFO L226 Difference]: Without dead ends: 3717 [2023-12-15 23:30:05,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:30:05,533 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 134 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:05,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 569 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:30:05,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2023-12-15 23:30:05,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3507. [2023-12-15 23:30:05,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3507 states, 3506 states have (on average 1.3308613804905876) internal successors, (4666), 3506 states have internal predecessors, (4666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:05,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3507 states to 3507 states and 4666 transitions. [2023-12-15 23:30:05,560 INFO L78 Accepts]: Start accepts. Automaton has 3507 states and 4666 transitions. Word has length 69 [2023-12-15 23:30:05,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:05,560 INFO L495 AbstractCegarLoop]: Abstraction has 3507 states and 4666 transitions. [2023-12-15 23:30:05,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:05,560 INFO L276 IsEmpty]: Start isEmpty. Operand 3507 states and 4666 transitions. [2023-12-15 23:30:05,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-15 23:30:05,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:05,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:05,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-15 23:30:05,563 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:05,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:05,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1521240512, now seen corresponding path program 1 times [2023-12-15 23:30:05,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:05,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442784072] [2023-12-15 23:30:05,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:05,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:05,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:05,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:05,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442784072] [2023-12-15 23:30:05,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442784072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:05,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:05,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:30:05,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800162704] [2023-12-15 23:30:05,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:05,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:30:05,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:05,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:30:05,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:30:05,654 INFO L87 Difference]: Start difference. First operand 3507 states and 4666 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:05,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:05,685 INFO L93 Difference]: Finished difference Result 8999 states and 12144 transitions. [2023-12-15 23:30:05,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:30:05,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-15 23:30:05,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:05,693 INFO L225 Difference]: With dead ends: 8999 [2023-12-15 23:30:05,693 INFO L226 Difference]: Without dead ends: 6113 [2023-12-15 23:30:05,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:30:05,698 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 122 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:05,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 557 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:30:05,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6113 states. [2023-12-15 23:30:05,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6113 to 5615. [2023-12-15 23:30:05,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5615 states, 5614 states have (on average 1.3327395796223727) internal successors, (7482), 5614 states have internal predecessors, (7482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:05,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5615 states to 5615 states and 7482 transitions. [2023-12-15 23:30:05,757 INFO L78 Accepts]: Start accepts. Automaton has 5615 states and 7482 transitions. Word has length 70 [2023-12-15 23:30:05,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:05,758 INFO L495 AbstractCegarLoop]: Abstraction has 5615 states and 7482 transitions. [2023-12-15 23:30:05,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:05,758 INFO L276 IsEmpty]: Start isEmpty. Operand 5615 states and 7482 transitions. [2023-12-15 23:30:05,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-15 23:30:05,760 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:05,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:05,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-15 23:30:05,760 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:05,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:05,760 INFO L85 PathProgramCache]: Analyzing trace with hash -665898309, now seen corresponding path program 1 times [2023-12-15 23:30:05,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:05,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685726378] [2023-12-15 23:30:05,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:05,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:05,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:05,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:05,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685726378] [2023-12-15 23:30:05,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685726378] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:05,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:05,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:30:05,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013026098] [2023-12-15 23:30:05,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:05,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:30:05,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:05,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:30:05,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:30:05,828 INFO L87 Difference]: Start difference. First operand 5615 states and 7482 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:05,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:05,871 INFO L93 Difference]: Finished difference Result 15043 states and 20164 transitions. [2023-12-15 23:30:05,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:30:05,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-12-15 23:30:05,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:05,881 INFO L225 Difference]: With dead ends: 15043 [2023-12-15 23:30:05,881 INFO L226 Difference]: Without dead ends: 10049 [2023-12-15 23:30:05,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:30:05,886 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 100 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:05,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 547 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:30:05,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10049 states. [2023-12-15 23:30:05,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10049 to 9215. [2023-12-15 23:30:05,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9215 states, 9214 states have (on average 1.3260256131973085) internal successors, (12218), 9214 states have internal predecessors, (12218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:05,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9215 states to 9215 states and 12218 transitions. [2023-12-15 23:30:05,972 INFO L78 Accepts]: Start accepts. Automaton has 9215 states and 12218 transitions. Word has length 72 [2023-12-15 23:30:05,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:05,972 INFO L495 AbstractCegarLoop]: Abstraction has 9215 states and 12218 transitions. [2023-12-15 23:30:05,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:05,972 INFO L276 IsEmpty]: Start isEmpty. Operand 9215 states and 12218 transitions. [2023-12-15 23:30:05,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 23:30:05,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:05,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:05,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-15 23:30:05,974 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:05,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:05,975 INFO L85 PathProgramCache]: Analyzing trace with hash 93568553, now seen corresponding path program 1 times [2023-12-15 23:30:05,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:05,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781491763] [2023-12-15 23:30:05,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:05,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:06,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:06,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:06,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781491763] [2023-12-15 23:30:06,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781491763] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:06,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:06,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:30:06,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543987628] [2023-12-15 23:30:06,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:06,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:30:06,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:06,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:30:06,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:30:06,089 INFO L87 Difference]: Start difference. First operand 9215 states and 12218 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:06,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:06,188 INFO L93 Difference]: Finished difference Result 19689 states and 25745 transitions. [2023-12-15 23:30:06,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 23:30:06,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2023-12-15 23:30:06,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:06,210 INFO L225 Difference]: With dead ends: 19689 [2023-12-15 23:30:06,210 INFO L226 Difference]: Without dead ends: 19687 [2023-12-15 23:30:06,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:30:06,217 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 358 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:06,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1350 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:30:06,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19687 states. [2023-12-15 23:30:06,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19687 to 10127. [2023-12-15 23:30:06,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10127 states, 10126 states have (on average 1.296662058068339) internal successors, (13130), 10126 states have internal predecessors, (13130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:06,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10127 states to 10127 states and 13130 transitions. [2023-12-15 23:30:06,348 INFO L78 Accepts]: Start accepts. Automaton has 10127 states and 13130 transitions. Word has length 74 [2023-12-15 23:30:06,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:06,348 INFO L495 AbstractCegarLoop]: Abstraction has 10127 states and 13130 transitions. [2023-12-15 23:30:06,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:06,348 INFO L276 IsEmpty]: Start isEmpty. Operand 10127 states and 13130 transitions. [2023-12-15 23:30:06,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-15 23:30:06,350 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:06,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:06,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-15 23:30:06,351 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:06,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:06,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1179448625, now seen corresponding path program 1 times [2023-12-15 23:30:06,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:06,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846036589] [2023-12-15 23:30:06,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:06,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:06,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:06,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:06,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846036589] [2023-12-15 23:30:06,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846036589] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:06,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:06,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:30:06,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652755202] [2023-12-15 23:30:06,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:06,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:30:06,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:06,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:30:06,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:30:06,390 INFO L87 Difference]: Start difference. First operand 10127 states and 13130 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:06,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:06,441 INFO L93 Difference]: Finished difference Result 24447 states and 31688 transitions. [2023-12-15 23:30:06,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:30:06,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-12-15 23:30:06,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:06,500 INFO L225 Difference]: With dead ends: 24447 [2023-12-15 23:30:06,501 INFO L226 Difference]: Without dead ends: 14941 [2023-12-15 23:30:06,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:30:06,506 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 195 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:06,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 425 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:30:06,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14941 states. [2023-12-15 23:30:06,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14941 to 14939. [2023-12-15 23:30:06,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14939 states, 14938 states have (on average 1.279823269513991) internal successors, (19118), 14938 states have internal predecessors, (19118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:06,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14939 states to 14939 states and 19118 transitions. [2023-12-15 23:30:06,630 INFO L78 Accepts]: Start accepts. Automaton has 14939 states and 19118 transitions. Word has length 75 [2023-12-15 23:30:06,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:06,630 INFO L495 AbstractCegarLoop]: Abstraction has 14939 states and 19118 transitions. [2023-12-15 23:30:06,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:06,630 INFO L276 IsEmpty]: Start isEmpty. Operand 14939 states and 19118 transitions. [2023-12-15 23:30:06,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-15 23:30:06,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:06,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:06,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-15 23:30:06,633 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:06,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:06,633 INFO L85 PathProgramCache]: Analyzing trace with hash 667979649, now seen corresponding path program 1 times [2023-12-15 23:30:06,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:06,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953678675] [2023-12-15 23:30:06,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:06,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:06,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:06,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:06,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953678675] [2023-12-15 23:30:06,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953678675] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:06,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:06,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:30:06,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820424570] [2023-12-15 23:30:06,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:06,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:30:06,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:06,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:30:06,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:30:06,703 INFO L87 Difference]: Start difference. First operand 14939 states and 19118 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:06,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:06,826 INFO L93 Difference]: Finished difference Result 21731 states and 27973 transitions. [2023-12-15 23:30:06,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:30:06,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2023-12-15 23:30:06,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:06,878 INFO L225 Difference]: With dead ends: 21731 [2023-12-15 23:30:06,878 INFO L226 Difference]: Without dead ends: 18111 [2023-12-15 23:30:06,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:30:06,887 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 658 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:06,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 839 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:30:06,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18111 states. [2023-12-15 23:30:07,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18111 to 16887. [2023-12-15 23:30:07,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16887 states, 16886 states have (on average 1.2761459196967901) internal successors, (21549), 16886 states have internal predecessors, (21549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:07,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16887 states to 16887 states and 21549 transitions. [2023-12-15 23:30:07,061 INFO L78 Accepts]: Start accepts. Automaton has 16887 states and 21549 transitions. Word has length 76 [2023-12-15 23:30:07,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:07,061 INFO L495 AbstractCegarLoop]: Abstraction has 16887 states and 21549 transitions. [2023-12-15 23:30:07,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:07,062 INFO L276 IsEmpty]: Start isEmpty. Operand 16887 states and 21549 transitions. [2023-12-15 23:30:07,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-15 23:30:07,064 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:07,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:07,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-15 23:30:07,064 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:07,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:07,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1316845845, now seen corresponding path program 1 times [2023-12-15 23:30:07,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:07,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316807064] [2023-12-15 23:30:07,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:07,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:07,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:07,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:07,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316807064] [2023-12-15 23:30:07,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316807064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:07,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:07,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:30:07,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250218295] [2023-12-15 23:30:07,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:07,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:30:07,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:07,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:30:07,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:30:07,129 INFO L87 Difference]: Start difference. First operand 16887 states and 21549 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:07,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:07,207 INFO L93 Difference]: Finished difference Result 22775 states and 29213 transitions. [2023-12-15 23:30:07,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:30:07,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-15 23:30:07,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:07,230 INFO L225 Difference]: With dead ends: 22775 [2023-12-15 23:30:07,230 INFO L226 Difference]: Without dead ends: 19227 [2023-12-15 23:30:07,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:30:07,239 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 672 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:07,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 816 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:30:07,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19227 states. [2023-12-15 23:30:07,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19227 to 18801. [2023-12-15 23:30:07,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18801 states, 18800 states have (on average 1.2730319148936171) internal successors, (23933), 18800 states have internal predecessors, (23933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:07,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18801 states to 18801 states and 23933 transitions. [2023-12-15 23:30:07,482 INFO L78 Accepts]: Start accepts. Automaton has 18801 states and 23933 transitions. Word has length 78 [2023-12-15 23:30:07,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:07,482 INFO L495 AbstractCegarLoop]: Abstraction has 18801 states and 23933 transitions. [2023-12-15 23:30:07,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:07,482 INFO L276 IsEmpty]: Start isEmpty. Operand 18801 states and 23933 transitions. [2023-12-15 23:30:07,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-15 23:30:07,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:07,488 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:07,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-15 23:30:07,490 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:07,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:07,490 INFO L85 PathProgramCache]: Analyzing trace with hash 710675695, now seen corresponding path program 1 times [2023-12-15 23:30:07,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:07,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312482055] [2023-12-15 23:30:07,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:07,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:07,673 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:07,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:07,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312482055] [2023-12-15 23:30:07,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312482055] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:30:07,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239459106] [2023-12-15 23:30:07,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:07,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:30:07,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:30:07,692 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) [2023-12-15 23:30:07,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 23:30:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:07,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-15 23:30:07,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:30:08,258 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:08,259 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 23:30:08,773 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:08,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239459106] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 23:30:08,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 23:30:08,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2023-12-15 23:30:08,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847647063] [2023-12-15 23:30:08,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 23:30:08,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-15 23:30:08,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:08,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-15 23:30:08,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2023-12-15 23:30:08,775 INFO L87 Difference]: Start difference. First operand 18801 states and 23933 transitions. Second operand has 19 states, 19 states have (on average 13.894736842105264) internal successors, (264), 19 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:11,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:11,887 INFO L93 Difference]: Finished difference Result 113168 states and 143513 transitions. [2023-12-15 23:30:11,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-12-15 23:30:11,888 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.894736842105264) internal successors, (264), 19 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-12-15 23:30:11,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:11,993 INFO L225 Difference]: With dead ends: 113168 [2023-12-15 23:30:11,994 INFO L226 Difference]: Without dead ends: 94998 [2023-12-15 23:30:12,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1829 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1115, Invalid=4891, Unknown=0, NotChecked=0, Total=6006 [2023-12-15 23:30:12,032 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 3683 mSDsluCounter, 4037 mSDsCounter, 0 mSdLazyCounter, 3435 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3683 SdHoareTripleChecker+Valid, 4449 SdHoareTripleChecker+Invalid, 3465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 3435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:12,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3683 Valid, 4449 Invalid, 3465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 3435 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 23:30:12,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94998 states. [2023-12-15 23:30:12,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94998 to 28295. [2023-12-15 23:30:12,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28295 states, 28294 states have (on average 1.271294267335831) internal successors, (35970), 28294 states have internal predecessors, (35970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:13,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28295 states to 28295 states and 35970 transitions. [2023-12-15 23:30:13,022 INFO L78 Accepts]: Start accepts. Automaton has 28295 states and 35970 transitions. Word has length 94 [2023-12-15 23:30:13,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:13,023 INFO L495 AbstractCegarLoop]: Abstraction has 28295 states and 35970 transitions. [2023-12-15 23:30:13,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.894736842105264) internal successors, (264), 19 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:13,023 INFO L276 IsEmpty]: Start isEmpty. Operand 28295 states and 35970 transitions. [2023-12-15 23:30:13,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-15 23:30:13,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:13,101 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:13,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 23:30:13,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:30:13,307 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:13,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:13,307 INFO L85 PathProgramCache]: Analyzing trace with hash 858710610, now seen corresponding path program 1 times [2023-12-15 23:30:13,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:13,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608431545] [2023-12-15 23:30:13,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:13,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:13,344 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-15 23:30:13,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:13,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608431545] [2023-12-15 23:30:13,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608431545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:13,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:13,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:30:13,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345981119] [2023-12-15 23:30:13,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:13,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:30:13,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:13,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:30:13,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:30:13,346 INFO L87 Difference]: Start difference. First operand 28295 states and 35970 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:13,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:13,540 INFO L93 Difference]: Finished difference Result 55074 states and 70178 transitions. [2023-12-15 23:30:13,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:30:13,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-15 23:30:13,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:13,571 INFO L225 Difference]: With dead ends: 55074 [2023-12-15 23:30:13,571 INFO L226 Difference]: Without dead ends: 27986 [2023-12-15 23:30:13,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:30:13,590 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 205 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:13,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 276 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:30:13,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27986 states. [2023-12-15 23:30:13,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27986 to 27986. [2023-12-15 23:30:13,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27986 states, 27985 states have (on average 1.2584598892263712) internal successors, (35218), 27985 states have internal predecessors, (35218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:14,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27986 states to 27986 states and 35218 transitions. [2023-12-15 23:30:14,023 INFO L78 Accepts]: Start accepts. Automaton has 27986 states and 35218 transitions. Word has length 96 [2023-12-15 23:30:14,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:14,023 INFO L495 AbstractCegarLoop]: Abstraction has 27986 states and 35218 transitions. [2023-12-15 23:30:14,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:14,024 INFO L276 IsEmpty]: Start isEmpty. Operand 27986 states and 35218 transitions. [2023-12-15 23:30:14,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-15 23:30:14,044 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:14,044 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:14,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-15 23:30:14,045 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:14,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:14,045 INFO L85 PathProgramCache]: Analyzing trace with hash -64628716, now seen corresponding path program 1 times [2023-12-15 23:30:14,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:14,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629364428] [2023-12-15 23:30:14,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:14,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:14,106 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:14,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:14,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629364428] [2023-12-15 23:30:14,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629364428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:14,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:14,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:30:14,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218267343] [2023-12-15 23:30:14,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:14,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:30:14,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:14,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:30:14,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:30:14,108 INFO L87 Difference]: Start difference. First operand 27986 states and 35218 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:14,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:14,382 INFO L93 Difference]: Finished difference Result 60472 states and 76018 transitions. [2023-12-15 23:30:14,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 23:30:14,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-15 23:30:14,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:14,420 INFO L225 Difference]: With dead ends: 60472 [2023-12-15 23:30:14,420 INFO L226 Difference]: Without dead ends: 33469 [2023-12-15 23:30:14,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:30:14,443 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 707 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:14,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 493 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:30:14,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33469 states. [2023-12-15 23:30:14,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33469 to 27035. [2023-12-15 23:30:14,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27035 states, 27034 states have (on average 1.235074350817489) internal successors, (33389), 27034 states have internal predecessors, (33389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:14,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27035 states to 27035 states and 33389 transitions. [2023-12-15 23:30:14,866 INFO L78 Accepts]: Start accepts. Automaton has 27035 states and 33389 transitions. Word has length 96 [2023-12-15 23:30:14,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:14,867 INFO L495 AbstractCegarLoop]: Abstraction has 27035 states and 33389 transitions. [2023-12-15 23:30:14,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:14,867 INFO L276 IsEmpty]: Start isEmpty. Operand 27035 states and 33389 transitions. [2023-12-15 23:30:14,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-15 23:30:14,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:14,874 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:14,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-15 23:30:14,874 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:14,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:14,875 INFO L85 PathProgramCache]: Analyzing trace with hash -644115327, now seen corresponding path program 1 times [2023-12-15 23:30:14,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:14,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700367508] [2023-12-15 23:30:14,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:14,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:15,049 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:15,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:15,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700367508] [2023-12-15 23:30:15,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700367508] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:15,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:15,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:30:15,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088516637] [2023-12-15 23:30:15,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:15,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:30:15,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:15,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:30:15,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:30:15,052 INFO L87 Difference]: Start difference. First operand 27035 states and 33389 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:15,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:15,154 INFO L93 Difference]: Finished difference Result 33084 states and 41034 transitions. [2023-12-15 23:30:15,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:30:15,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-15 23:30:15,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:15,184 INFO L225 Difference]: With dead ends: 33084 [2023-12-15 23:30:15,184 INFO L226 Difference]: Without dead ends: 29554 [2023-12-15 23:30:15,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:30:15,195 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 570 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:15,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 833 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:30:15,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29554 states. [2023-12-15 23:30:15,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29554 to 29081. [2023-12-15 23:30:15,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29081 states, 29080 states have (on average 1.2323933975240715) internal successors, (35838), 29080 states have internal predecessors, (35838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:15,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29081 states to 29081 states and 35838 transitions. [2023-12-15 23:30:15,570 INFO L78 Accepts]: Start accepts. Automaton has 29081 states and 35838 transitions. Word has length 100 [2023-12-15 23:30:15,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:15,570 INFO L495 AbstractCegarLoop]: Abstraction has 29081 states and 35838 transitions. [2023-12-15 23:30:15,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:15,571 INFO L276 IsEmpty]: Start isEmpty. Operand 29081 states and 35838 transitions. [2023-12-15 23:30:15,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-15 23:30:15,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:15,580 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:15,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-15 23:30:15,581 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:15,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:15,581 INFO L85 PathProgramCache]: Analyzing trace with hash 556526912, now seen corresponding path program 1 times [2023-12-15 23:30:15,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:15,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872396874] [2023-12-15 23:30:15,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:15,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:15,648 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:15,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:15,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872396874] [2023-12-15 23:30:15,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872396874] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:30:15,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676848700] [2023-12-15 23:30:15,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:15,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:30:15,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:30:15,650 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) [2023-12-15 23:30:15,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 23:30:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:15,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 23:30:15,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:30:16,060 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:16,060 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 23:30:16,191 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:16,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676848700] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 23:30:16,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 23:30:16,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-12-15 23:30:16,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903694853] [2023-12-15 23:30:16,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 23:30:16,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-15 23:30:16,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:16,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-15 23:30:16,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-15 23:30:16,193 INFO L87 Difference]: Start difference. First operand 29081 states and 35838 transitions. Second operand has 14 states, 14 states have (on average 19.571428571428573) internal successors, (274), 14 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:16,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:16,799 INFO L93 Difference]: Finished difference Result 68380 states and 83618 transitions. [2023-12-15 23:30:16,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:30:16,800 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 19.571428571428573) internal successors, (274), 14 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2023-12-15 23:30:16,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:16,850 INFO L225 Difference]: With dead ends: 68380 [2023-12-15 23:30:16,851 INFO L226 Difference]: Without dead ends: 46126 [2023-12-15 23:30:16,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-15 23:30:16,871 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 2732 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2732 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:16,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2732 Valid, 995 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 23:30:16,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46126 states. [2023-12-15 23:30:17,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46126 to 31029. [2023-12-15 23:30:17,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31029 states, 31028 states have (on average 1.2255382235400283) internal successors, (38026), 31028 states have internal predecessors, (38026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:17,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31029 states to 31029 states and 38026 transitions. [2023-12-15 23:30:17,406 INFO L78 Accepts]: Start accepts. Automaton has 31029 states and 38026 transitions. Word has length 101 [2023-12-15 23:30:17,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:17,406 INFO L495 AbstractCegarLoop]: Abstraction has 31029 states and 38026 transitions. [2023-12-15 23:30:17,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.571428571428573) internal successors, (274), 14 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:17,406 INFO L276 IsEmpty]: Start isEmpty. Operand 31029 states and 38026 transitions. [2023-12-15 23:30:17,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-15 23:30:17,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:17,416 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:17,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-15 23:30:17,622 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,SelfDestructingSolverStorable33 [2023-12-15 23:30:17,622 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:17,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:17,623 INFO L85 PathProgramCache]: Analyzing trace with hash 2072384645, now seen corresponding path program 1 times [2023-12-15 23:30:17,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:17,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119906696] [2023-12-15 23:30:17,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:17,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:17,836 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-15 23:30:17,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:17,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119906696] [2023-12-15 23:30:17,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119906696] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:17,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:17,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:30:17,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185090552] [2023-12-15 23:30:17,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:17,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:30:17,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:17,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:30:17,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:30:17,838 INFO L87 Difference]: Start difference. First operand 31029 states and 38026 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:18,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:18,271 INFO L93 Difference]: Finished difference Result 92608 states and 112963 transitions. [2023-12-15 23:30:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:30:18,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2023-12-15 23:30:18,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:18,365 INFO L225 Difference]: With dead ends: 92608 [2023-12-15 23:30:18,365 INFO L226 Difference]: Without dead ends: 83174 [2023-12-15 23:30:18,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:30:18,393 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 2097 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2097 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:18,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2097 Valid, 513 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:30:18,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83174 states. [2023-12-15 23:30:18,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83174 to 31091. [2023-12-15 23:30:19,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31091 states, 31090 states have (on average 1.225410099710518) internal successors, (38098), 31090 states have internal predecessors, (38098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:19,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31091 states to 31091 states and 38098 transitions. [2023-12-15 23:30:19,046 INFO L78 Accepts]: Start accepts. Automaton has 31091 states and 38098 transitions. Word has length 103 [2023-12-15 23:30:19,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:19,047 INFO L495 AbstractCegarLoop]: Abstraction has 31091 states and 38098 transitions. [2023-12-15 23:30:19,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:19,047 INFO L276 IsEmpty]: Start isEmpty. Operand 31091 states and 38098 transitions. [2023-12-15 23:30:19,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-15 23:30:19,054 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:19,054 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:19,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-15 23:30:19,055 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:19,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:19,055 INFO L85 PathProgramCache]: Analyzing trace with hash -817820492, now seen corresponding path program 1 times [2023-12-15 23:30:19,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:19,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641705522] [2023-12-15 23:30:19,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:19,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:19,132 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:19,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:19,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641705522] [2023-12-15 23:30:19,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641705522] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:30:19,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500665813] [2023-12-15 23:30:19,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:19,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:30:19,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:30:19,134 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) [2023-12-15 23:30:19,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 23:30:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:19,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 23:30:19,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:30:19,535 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:19,536 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 23:30:19,671 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:19,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500665813] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 23:30:19,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 23:30:19,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-12-15 23:30:19,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703312623] [2023-12-15 23:30:19,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 23:30:19,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-15 23:30:19,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:19,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-15 23:30:19,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-15 23:30:19,673 INFO L87 Difference]: Start difference. First operand 31091 states and 38098 transitions. Second operand has 14 states, 14 states have (on average 20.5) internal successors, (287), 14 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:20,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:20,231 INFO L93 Difference]: Finished difference Result 84144 states and 102979 transitions. [2023-12-15 23:30:20,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:30:20,232 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.5) internal successors, (287), 14 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-15 23:30:20,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:20,295 INFO L225 Difference]: With dead ends: 84144 [2023-12-15 23:30:20,295 INFO L226 Difference]: Without dead ends: 53911 [2023-12-15 23:30:20,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 200 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-15 23:30:20,321 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 3288 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3288 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:20,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3288 Valid, 859 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:30:20,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53911 states. [2023-12-15 23:30:20,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53911 to 35453. [2023-12-15 23:30:20,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35453 states, 35452 states have (on average 1.210735642558953) internal successors, (42923), 35452 states have internal predecessors, (42923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:20,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35453 states to 35453 states and 42923 transitions. [2023-12-15 23:30:20,816 INFO L78 Accepts]: Start accepts. Automaton has 35453 states and 42923 transitions. Word has length 104 [2023-12-15 23:30:20,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:20,816 INFO L495 AbstractCegarLoop]: Abstraction has 35453 states and 42923 transitions. [2023-12-15 23:30:20,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.5) internal successors, (287), 14 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:20,817 INFO L276 IsEmpty]: Start isEmpty. Operand 35453 states and 42923 transitions. [2023-12-15 23:30:20,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-15 23:30:20,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:20,824 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:20,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-15 23:30:21,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:30:21,030 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:21,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:21,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1310787706, now seen corresponding path program 1 times [2023-12-15 23:30:21,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:21,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476872430] [2023-12-15 23:30:21,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:21,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:21,086 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-15 23:30:21,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:21,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476872430] [2023-12-15 23:30:21,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476872430] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:21,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:21,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:30:21,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072037529] [2023-12-15 23:30:21,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:21,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 23:30:21,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:21,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 23:30:21,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 23:30:21,088 INFO L87 Difference]: Start difference. First operand 35453 states and 42923 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:21,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:21,548 INFO L93 Difference]: Finished difference Result 85250 states and 103344 transitions. [2023-12-15 23:30:21,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:30:21,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-15 23:30:21,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:21,632 INFO L225 Difference]: With dead ends: 85250 [2023-12-15 23:30:21,632 INFO L226 Difference]: Without dead ends: 69190 [2023-12-15 23:30:21,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:30:21,659 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 443 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:21,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 564 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:30:21,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69190 states. [2023-12-15 23:30:22,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69190 to 41449. [2023-12-15 23:30:22,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41449 states, 41448 states have (on average 1.2122418452036285) internal successors, (50245), 41448 states have internal predecessors, (50245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:22,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41449 states to 41449 states and 50245 transitions. [2023-12-15 23:30:22,364 INFO L78 Accepts]: Start accepts. Automaton has 41449 states and 50245 transitions. Word has length 104 [2023-12-15 23:30:22,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:22,365 INFO L495 AbstractCegarLoop]: Abstraction has 41449 states and 50245 transitions. [2023-12-15 23:30:22,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:22,365 INFO L276 IsEmpty]: Start isEmpty. Operand 41449 states and 50245 transitions. [2023-12-15 23:30:22,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-15 23:30:22,373 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:22,373 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:22,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-15 23:30:22,374 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:22,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:22,375 INFO L85 PathProgramCache]: Analyzing trace with hash -384560651, now seen corresponding path program 1 times [2023-12-15 23:30:22,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:22,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148241949] [2023-12-15 23:30:22,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:22,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:22,851 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:22,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:22,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148241949] [2023-12-15 23:30:22,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148241949] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:30:22,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208653288] [2023-12-15 23:30:22,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:22,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:30:22,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:30:22,864 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) [2023-12-15 23:30:22,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 23:30:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:23,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-15 23:30:23,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:30:23,540 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:23,540 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 23:30:23,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208653288] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:23,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 23:30:23,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 16 [2023-12-15 23:30:23,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237124974] [2023-12-15 23:30:23,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:23,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 23:30:23,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:23,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 23:30:23,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:30:23,542 INFO L87 Difference]: Start difference. First operand 41449 states and 50245 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:24,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:24,862 INFO L93 Difference]: Finished difference Result 93809 states and 113284 transitions. [2023-12-15 23:30:24,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-15 23:30:24,863 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-15 23:30:24,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:24,944 INFO L225 Difference]: With dead ends: 93809 [2023-12-15 23:30:24,944 INFO L226 Difference]: Without dead ends: 74692 [2023-12-15 23:30:24,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=159, Invalid=711, Unknown=0, NotChecked=0, Total=870 [2023-12-15 23:30:24,972 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 1037 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:24,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 1891 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 23:30:25,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74692 states. [2023-12-15 23:30:25,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74692 to 63672. [2023-12-15 23:30:25,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63672 states, 63671 states have (on average 1.2117290446199998) internal successors, (77152), 63671 states have internal predecessors, (77152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:25,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63672 states to 63672 states and 77152 transitions. [2023-12-15 23:30:25,772 INFO L78 Accepts]: Start accepts. Automaton has 63672 states and 77152 transitions. Word has length 104 [2023-12-15 23:30:25,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:25,773 INFO L495 AbstractCegarLoop]: Abstraction has 63672 states and 77152 transitions. [2023-12-15 23:30:25,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:25,773 INFO L276 IsEmpty]: Start isEmpty. Operand 63672 states and 77152 transitions. [2023-12-15 23:30:25,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-15 23:30:25,783 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:25,783 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:25,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-15 23:30:25,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-12-15 23:30:25,988 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:25,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:25,989 INFO L85 PathProgramCache]: Analyzing trace with hash -2044134468, now seen corresponding path program 1 times [2023-12-15 23:30:25,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:25,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519740117] [2023-12-15 23:30:25,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:25,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:26,040 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-15 23:30:26,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:26,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519740117] [2023-12-15 23:30:26,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519740117] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:26,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:26,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:30:26,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463376584] [2023-12-15 23:30:26,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:26,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 23:30:26,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:26,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 23:30:26,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 23:30:26,042 INFO L87 Difference]: Start difference. First operand 63672 states and 77152 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:27,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:27,015 INFO L93 Difference]: Finished difference Result 192166 states and 231641 transitions. [2023-12-15 23:30:27,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:30:27,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-15 23:30:27,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:27,323 INFO L225 Difference]: With dead ends: 192166 [2023-12-15 23:30:27,323 INFO L226 Difference]: Without dead ends: 176101 [2023-12-15 23:30:27,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:30:27,359 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 387 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:27,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 734 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:30:27,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176101 states. [2023-12-15 23:30:28,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176101 to 71805. [2023-12-15 23:30:28,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71805 states, 71804 states have (on average 1.2115341763690046) internal successors, (86993), 71804 states have internal predecessors, (86993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:28,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71805 states to 71805 states and 86993 transitions. [2023-12-15 23:30:28,765 INFO L78 Accepts]: Start accepts. Automaton has 71805 states and 86993 transitions. Word has length 105 [2023-12-15 23:30:28,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:28,765 INFO L495 AbstractCegarLoop]: Abstraction has 71805 states and 86993 transitions. [2023-12-15 23:30:28,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:28,765 INFO L276 IsEmpty]: Start isEmpty. Operand 71805 states and 86993 transitions. [2023-12-15 23:30:28,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-15 23:30:28,776 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:28,776 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:28,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-15 23:30:28,776 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:28,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:28,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1407572553, now seen corresponding path program 1 times [2023-12-15 23:30:28,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:28,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593142890] [2023-12-15 23:30:28,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:28,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:29,111 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-15 23:30:29,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:29,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593142890] [2023-12-15 23:30:29,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593142890] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:29,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:29,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:30:29,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756967157] [2023-12-15 23:30:29,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:29,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:30:29,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:29,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:30:29,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:30:29,115 INFO L87 Difference]: Start difference. First operand 71805 states and 86993 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:30,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:30,083 INFO L93 Difference]: Finished difference Result 174090 states and 210810 transitions. [2023-12-15 23:30:30,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:30:30,084 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-15 23:30:30,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:30,247 INFO L225 Difference]: With dead ends: 174090 [2023-12-15 23:30:30,247 INFO L226 Difference]: Without dead ends: 141967 [2023-12-15 23:30:30,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:30:30,273 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 785 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:30,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1357 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 23:30:30,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141967 states. [2023-12-15 23:30:31,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141967 to 71464. [2023-12-15 23:30:31,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71464 states, 71463 states have (on average 1.2118159047339183) internal successors, (86600), 71463 states have internal predecessors, (86600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:31,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71464 states to 71464 states and 86600 transitions. [2023-12-15 23:30:31,460 INFO L78 Accepts]: Start accepts. Automaton has 71464 states and 86600 transitions. Word has length 105 [2023-12-15 23:30:31,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:31,460 INFO L495 AbstractCegarLoop]: Abstraction has 71464 states and 86600 transitions. [2023-12-15 23:30:31,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:31,460 INFO L276 IsEmpty]: Start isEmpty. Operand 71464 states and 86600 transitions. [2023-12-15 23:30:31,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-15 23:30:31,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:31,470 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:31,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-15 23:30:31,470 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:31,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:31,471 INFO L85 PathProgramCache]: Analyzing trace with hash -2120859030, now seen corresponding path program 1 times [2023-12-15 23:30:31,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:31,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372838175] [2023-12-15 23:30:31,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:31,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:31,822 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:31,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:31,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372838175] [2023-12-15 23:30:31,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372838175] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:30:31,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068003654] [2023-12-15 23:30:31,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:31,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:30:31,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:30:31,844 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) [2023-12-15 23:30:31,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 23:30:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:32,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-15 23:30:32,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:30:32,484 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:32,484 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 23:30:33,224 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:30:33,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068003654] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 23:30:33,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 23:30:33,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 27 [2023-12-15 23:30:33,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084838247] [2023-12-15 23:30:33,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 23:30:33,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-15 23:30:33,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:33,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-15 23:30:33,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2023-12-15 23:30:33,227 INFO L87 Difference]: Start difference. First operand 71464 states and 86600 transitions. Second operand has 28 states, 28 states have (on average 10.357142857142858) internal successors, (290), 27 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:38,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:38,499 INFO L93 Difference]: Finished difference Result 324117 states and 386279 transitions. [2023-12-15 23:30:38,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2023-12-15 23:30:38,499 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 10.357142857142858) internal successors, (290), 27 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-15 23:30:38,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:39,010 INFO L225 Difference]: With dead ends: 324117 [2023-12-15 23:30:39,010 INFO L226 Difference]: Without dead ends: 287973 [2023-12-15 23:30:39,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3815 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2664, Invalid=9326, Unknown=0, NotChecked=0, Total=11990 [2023-12-15 23:30:39,072 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 4377 mSDsluCounter, 4086 mSDsCounter, 0 mSdLazyCounter, 3650 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4377 SdHoareTripleChecker+Valid, 4423 SdHoareTripleChecker+Invalid, 3735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 3650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:39,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4377 Valid, 4423 Invalid, 3735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 3650 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-15 23:30:39,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287973 states. [2023-12-15 23:30:41,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287973 to 107226. [2023-12-15 23:30:41,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107226 states, 107225 states have (on average 1.2089624621123805) internal successors, (129631), 107225 states have internal predecessors, (129631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:41,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107226 states to 107226 states and 129631 transitions. [2023-12-15 23:30:41,406 INFO L78 Accepts]: Start accepts. Automaton has 107226 states and 129631 transitions. Word has length 105 [2023-12-15 23:30:41,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:41,406 INFO L495 AbstractCegarLoop]: Abstraction has 107226 states and 129631 transitions. [2023-12-15 23:30:41,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.357142857142858) internal successors, (290), 27 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:41,406 INFO L276 IsEmpty]: Start isEmpty. Operand 107226 states and 129631 transitions. [2023-12-15 23:30:41,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-15 23:30:41,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:41,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:41,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 23:30:41,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:30:41,625 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:41,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:41,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1555899345, now seen corresponding path program 1 times [2023-12-15 23:30:41,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:41,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962030189] [2023-12-15 23:30:41,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:41,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:42,058 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-15 23:30:42,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:42,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962030189] [2023-12-15 23:30:42,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962030189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:42,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:42,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:30:42,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074892753] [2023-12-15 23:30:42,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:42,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:30:42,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:42,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:30:42,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:30:42,061 INFO L87 Difference]: Start difference. First operand 107226 states and 129631 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:43,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:43,267 INFO L93 Difference]: Finished difference Result 242133 states and 292871 transitions. [2023-12-15 23:30:43,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:30:43,268 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2023-12-15 23:30:43,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:43,584 INFO L225 Difference]: With dead ends: 242133 [2023-12-15 23:30:43,585 INFO L226 Difference]: Without dead ends: 170293 [2023-12-15 23:30:43,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:30:43,683 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 811 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:43,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 1344 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 23:30:43,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170293 states. [2023-12-15 23:30:44,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170293 to 107149. [2023-12-15 23:30:45,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107149 states, 107148 states have (on average 1.2090193004069139) internal successors, (129544), 107148 states have internal predecessors, (129544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:45,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107149 states to 107149 states and 129544 transitions. [2023-12-15 23:30:45,432 INFO L78 Accepts]: Start accepts. Automaton has 107149 states and 129544 transitions. Word has length 106 [2023-12-15 23:30:45,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:30:45,433 INFO L495 AbstractCegarLoop]: Abstraction has 107149 states and 129544 transitions. [2023-12-15 23:30:45,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:45,437 INFO L276 IsEmpty]: Start isEmpty. Operand 107149 states and 129544 transitions. [2023-12-15 23:30:45,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-15 23:30:45,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:30:45,456 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:45,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-15 23:30:45,457 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:30:45,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:30:45,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1803914390, now seen corresponding path program 1 times [2023-12-15 23:30:45,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:30:45,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777423748] [2023-12-15 23:30:45,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:30:45,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:30:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:30:45,546 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-15 23:30:45,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:30:45,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777423748] [2023-12-15 23:30:45,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777423748] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:30:45,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:30:45,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:30:45,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314285991] [2023-12-15 23:30:45,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:30:45,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 23:30:45,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:30:45,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 23:30:45,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 23:30:45,551 INFO L87 Difference]: Start difference. First operand 107149 states and 129544 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:30:46,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:30:46,098 INFO L93 Difference]: Finished difference Result 154663 states and 185981 transitions. [2023-12-15 23:30:46,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:30:46,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-15 23:30:46,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:30:46,558 INFO L225 Difference]: With dead ends: 154663 [2023-12-15 23:30:46,558 INFO L226 Difference]: Without dead ends: 148203 [2023-12-15 23:30:46,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:30:46,575 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 303 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:30:46,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 719 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:30:46,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148203 states. Received shutdown request... [2023-12-15 23:30:47,302 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-12-15 23:30:47,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-15 23:30:47,303 WARN L619 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2023-12-15 23:30:47,304 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-12-15 23:30:47,304 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2023-12-15 23:30:47,304 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-12-15 23:30:47,325 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 23:30:47,325 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:30:47,328 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 23:30:47,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:30:47 BoogieIcfgContainer [2023-12-15 23:30:47,332 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 23:30:47,332 INFO L158 Benchmark]: Toolchain (without parser) took 57022.14ms. Allocated memory was 318.8MB in the beginning and 7.0GB in the end (delta: 6.7GB). Free memory was 260.0MB in the beginning and 4.2GB in the end (delta: -3.9GB). Peak memory consumption was 2.8GB. Max. memory is 8.0GB. [2023-12-15 23:30:47,333 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 215.0MB. Free memory is still 161.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 23:30:47,333 INFO L158 Benchmark]: CACSL2BoogieTranslator took 675.52ms. Allocated memory is still 318.8MB. Free memory was 260.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 8.0GB. [2023-12-15 23:30:47,333 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.56ms. Allocated memory is still 318.8MB. Free memory was 205.5MB in the beginning and 195.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-15 23:30:47,333 INFO L158 Benchmark]: Boogie Preprocessor took 152.03ms. Allocated memory is still 318.8MB. Free memory was 195.0MB in the beginning and 183.5MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-15 23:30:47,333 INFO L158 Benchmark]: RCFGBuilder took 1357.47ms. Allocated memory is still 318.8MB. Free memory was 183.5MB in the beginning and 157.5MB in the end (delta: 26.0MB). Peak memory consumption was 40.6MB. Max. memory is 8.0GB. [2023-12-15 23:30:47,333 INFO L158 Benchmark]: TraceAbstraction took 54738.00ms. Allocated memory was 318.8MB in the beginning and 7.0GB in the end (delta: 6.7GB). Free memory was 157.0MB in the beginning and 4.2GB in the end (delta: -4.0GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2023-12-15 23:30:47,334 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 215.0MB. Free memory is still 161.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 675.52ms. Allocated memory is still 318.8MB. Free memory was 260.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 94.56ms. Allocated memory is still 318.8MB. Free memory was 205.5MB in the beginning and 195.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 152.03ms. Allocated memory is still 318.8MB. Free memory was 195.0MB in the beginning and 183.5MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * RCFGBuilder took 1357.47ms. Allocated memory is still 318.8MB. Free memory was 183.5MB in the beginning and 157.5MB in the end (delta: 26.0MB). Peak memory consumption was 40.6MB. Max. memory is 8.0GB. * TraceAbstraction took 54738.00ms. Allocated memory was 318.8MB in the beginning and 7.0GB in the end (delta: 6.7GB). Free memory was 157.0MB in the beginning and 4.2GB in the end (delta: -4.0GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 453]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 453). Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 1047]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1047). Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 1222]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1222). Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 1305]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1305). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 455 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 54.7s, OverallIterations: 43, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 27.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53486 SdHoareTripleChecker+Valid, 12.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53486 mSDsluCounter, 51040 SdHoareTripleChecker+Invalid, 10.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35984 mSDsCounter, 896 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22761 IncrementalHoareTripleChecker+Invalid, 23657 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 896 mSolverCounterUnsat, 15056 mSDtfsCounter, 22761 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1448 GetRequests, 918 SyntacticMatches, 3 SemanticMatches, 527 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6344 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107226occurred in iteration=41, InterpolantAutomatonStates: 458, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.4s AutomataMinimizationTime, 43 MinimizatonAttempts, 660695 StatesRemovedByMinimization, 41 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 3662 NumberOfCodeBlocks, 3662 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 4014 ConstructedInterpolants, 0 QuantifiedInterpolants, 24028 SizeOfPredicates, 28 NumberOfNonLiveVariables, 2753 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 52 InterpolantComputations, 39 PerfectInterpolantSequences, 168/213 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown