/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/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 18:01:31,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 18:01:31,783 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 18:01:31,786 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 18:01:31,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 18:01:31,803 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 18:01:31,803 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 18:01:31,804 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 18:01:31,804 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 18:01:31,804 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 18:01:31,805 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 18:01:31,805 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 18:01:31,805 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 18:01:31,805 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 18:01:31,806 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 18:01:31,806 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 18:01:31,806 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 18:01:31,806 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 18:01:31,807 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 18:01:31,807 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 18:01:31,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 18:01:31,808 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 18:01:31,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 18:01:31,808 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 18:01:31,824 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 18:01:31,824 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 18:01:31,825 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 18:01:31,825 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 18:01:31,825 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 18:01:31,825 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 18:01:31,825 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 18:01:31,826 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 18:01:31,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 18:01:31,826 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 18:01:31,826 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 18:01:31,826 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 18:01:31,826 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 18:01:31,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 18:01:31,827 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 18:01:31,827 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 18:01:31,827 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 18:01:31,827 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 18:01:31,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 18:01:31,828 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 18:01:31,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 18:01:32,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 18:01:32,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 18:01:32,006 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 18:01:32,006 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 18:01:32,007 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-15 18:01:33,001 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 18:01:33,329 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 18:01:33,330 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-15 18:01:33,362 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e6fe3e12/8c796fc194744393afa8224e4df89dc5/FLAG4c182f56d [2023-12-15 18:01:33,375 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e6fe3e12/8c796fc194744393afa8224e4df89dc5 [2023-12-15 18:01:33,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 18:01:33,379 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 18:01:33,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 18:01:33,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 18:01:33,385 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 18:01:33,385 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 06:01:33" (1/1) ... [2023-12-15 18:01:33,386 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@545f97a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:33, skipping insertion in model container [2023-12-15 18:01:33,386 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 06:01:33" (1/1) ... [2023-12-15 18:01:33,507 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 18:01:33,862 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label05.c[26925,26938] [2023-12-15 18:01:33,915 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label05.c[33861,33874] [2023-12-15 18:01:34,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 18:01:34,396 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 18:01:34,442 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label05.c[26925,26938] [2023-12-15 18:01:34,449 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label05.c[33861,33874] [2023-12-15 18:01:34,736 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 18:01:34,758 INFO L206 MainTranslator]: Completed translation [2023-12-15 18:01:34,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:34 WrapperNode [2023-12-15 18:01:34,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 18:01:34,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 18:01:34,761 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 18:01:34,761 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 18:01:34,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:34" (1/1) ... [2023-12-15 18:01:34,812 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:34" (1/1) ... [2023-12-15 18:01:35,090 INFO L138 Inliner]: procedures = 40, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5284 [2023-12-15 18:01:35,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 18:01:35,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 18:01:35,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 18:01:35,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 18:01:35,100 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:34" (1/1) ... [2023-12-15 18:01:35,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:34" (1/1) ... [2023-12-15 18:01:35,135 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:34" (1/1) ... [2023-12-15 18:01:35,275 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 18:01:35,276 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:34" (1/1) ... [2023-12-15 18:01:35,276 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:34" (1/1) ... [2023-12-15 18:01:35,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:34" (1/1) ... [2023-12-15 18:01:35,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:34" (1/1) ... [2023-12-15 18:01:35,435 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:34" (1/1) ... [2023-12-15 18:01:35,449 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:34" (1/1) ... [2023-12-15 18:01:35,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 18:01:35,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 18:01:35,495 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 18:01:35,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 18:01:35,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:34" (1/1) ... [2023-12-15 18:01:35,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 18:01:35,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 18:01:35,517 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 18:01:35,520 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 18:01:35,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 18:01:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 18:01:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 18:01:35,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 18:01:35,664 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 18:01:35,666 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 18:01:38,657 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 18:01:38,719 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 18:01:38,719 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-15 18:01:38,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 06:01:38 BoogieIcfgContainer [2023-12-15 18:01:38,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 18:01:38,721 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 18:01:38,721 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 18:01:38,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 18:01:38,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 06:01:33" (1/3) ... [2023-12-15 18:01:38,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4ab86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 06:01:38, skipping insertion in model container [2023-12-15 18:01:38,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:34" (2/3) ... [2023-12-15 18:01:38,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4ab86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 06:01:38, skipping insertion in model container [2023-12-15 18:01:38,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 06:01:38" (3/3) ... [2023-12-15 18:01:38,727 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-15 18:01:38,739 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 18:01:38,740 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-15 18:01:38,795 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 18:01:38,800 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;@513aca8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 18:01:38,800 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-15 18:01:38,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 884 states, 881 states have (on average 1.9693530079455164) internal successors, (1735), 883 states have internal predecessors, (1735), 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 18:01:38,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-15 18:01:38,817 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:38,817 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] [2023-12-15 18:01:38,818 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:38,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:38,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1451362732, now seen corresponding path program 1 times [2023-12-15 18:01:38,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:38,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914927676] [2023-12-15 18:01:38,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:38,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:39,053 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 18:01:39,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:39,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914927676] [2023-12-15 18:01:39,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914927676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:39,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:39,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 18:01:39,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155467154] [2023-12-15 18:01:39,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:39,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 18:01:39,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:39,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 18:01:39,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 18:01:39,085 INFO L87 Difference]: Start difference. First operand has 884 states, 881 states have (on average 1.9693530079455164) internal successors, (1735), 883 states have internal predecessors, (1735), 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 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 18:01:39,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:39,174 INFO L93 Difference]: Finished difference Result 1702 states and 3341 transitions. [2023-12-15 18:01:39,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 18:01:39,179 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 27 [2023-12-15 18:01:39,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:39,193 INFO L225 Difference]: With dead ends: 1702 [2023-12-15 18:01:39,193 INFO L226 Difference]: Without dead ends: 880 [2023-12-15 18:01:39,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 18:01:39,199 INFO L413 NwaCegarLoop]: 1663 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:39,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1663 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:39,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2023-12-15 18:01:39,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 880. [2023-12-15 18:01:39,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 878 states have (on average 1.8952164009111618) internal successors, (1664), 879 states have internal predecessors, (1664), 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 18:01:39,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1664 transitions. [2023-12-15 18:01:39,279 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1664 transitions. Word has length 27 [2023-12-15 18:01:39,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:39,279 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1664 transitions. [2023-12-15 18:01:39,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 18:01:39,279 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1664 transitions. [2023-12-15 18:01:39,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-15 18:01:39,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:39,280 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] [2023-12-15 18:01:39,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 18:01:39,281 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:39,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:39,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1038166230, now seen corresponding path program 1 times [2023-12-15 18:01:39,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:39,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465137996] [2023-12-15 18:01:39,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:39,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:39,447 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 18:01:39,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:39,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465137996] [2023-12-15 18:01:39,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465137996] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:39,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:39,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 18:01:39,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825994097] [2023-12-15 18:01:39,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:39,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 18:01:39,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:39,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 18:01:39,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:01:39,450 INFO L87 Difference]: Start difference. First operand 880 states and 1664 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 18:01:39,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:39,551 INFO L93 Difference]: Finished difference Result 944 states and 1766 transitions. [2023-12-15 18:01:39,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 18:01:39,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2023-12-15 18:01:39,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:39,555 INFO L225 Difference]: With dead ends: 944 [2023-12-15 18:01:39,556 INFO L226 Difference]: Without dead ends: 880 [2023-12-15 18:01:39,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:01:39,557 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 0 mSDsluCounter, 3257 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4918 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:39,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4918 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:39,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2023-12-15 18:01:39,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 880. [2023-12-15 18:01:39,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 878 states have (on average 1.825740318906606) internal successors, (1603), 879 states have internal predecessors, (1603), 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 18:01:39,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1603 transitions. [2023-12-15 18:01:39,616 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1603 transitions. Word has length 27 [2023-12-15 18:01:39,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:39,617 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1603 transitions. [2023-12-15 18:01:39,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 18:01:39,618 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1603 transitions. [2023-12-15 18:01:39,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-15 18:01:39,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:39,624 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] [2023-12-15 18:01:39,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 18:01:39,624 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:39,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:39,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1445962365, now seen corresponding path program 1 times [2023-12-15 18:01:39,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:39,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988562997] [2023-12-15 18:01:39,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:39,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:39,813 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 18:01:39,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:39,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988562997] [2023-12-15 18:01:39,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988562997] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:39,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:39,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:39,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883892692] [2023-12-15 18:01:39,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:39,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 18:01:39,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:39,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 18:01:39,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:01:39,819 INFO L87 Difference]: Start difference. First operand 880 states and 1603 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 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 18:01:45,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:45,274 INFO L93 Difference]: Finished difference Result 3135 states and 5912 transitions. [2023-12-15 18:01:45,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 18:01:45,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2023-12-15 18:01:45,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:45,285 INFO L225 Difference]: With dead ends: 3135 [2023-12-15 18:01:45,285 INFO L226 Difference]: Without dead ends: 2382 [2023-12-15 18:01:45,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 18:01:45,290 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 2522 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5357 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2522 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 6510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:45,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2522 Valid, 854 Invalid, 6510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5357 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-12-15 18:01:45,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2023-12-15 18:01:45,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 2382. [2023-12-15 18:01:45,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2380 states have (on average 1.561764705882353) internal successors, (3717), 2381 states have internal predecessors, (3717), 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 18:01:45,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3717 transitions. [2023-12-15 18:01:45,342 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3717 transitions. Word has length 59 [2023-12-15 18:01:45,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:45,354 INFO L495 AbstractCegarLoop]: Abstraction has 2382 states and 3717 transitions. [2023-12-15 18:01:45,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 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 18:01:45,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3717 transitions. [2023-12-15 18:01:45,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-15 18:01:45,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:45,357 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:45,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 18:01:45,357 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:45,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:45,359 INFO L85 PathProgramCache]: Analyzing trace with hash 64150534, now seen corresponding path program 1 times [2023-12-15 18:01:45,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:45,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279552465] [2023-12-15 18:01:45,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:45,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:45,665 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 18:01:45,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:45,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279552465] [2023-12-15 18:01:45,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279552465] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:45,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:45,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 18:01:45,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158563387] [2023-12-15 18:01:45,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:45,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 18:01:45,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:45,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 18:01:45,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 18:01:45,668 INFO L87 Difference]: Start difference. First operand 2382 states and 3717 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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 18:01:46,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:46,042 INFO L93 Difference]: Finished difference Result 3358 states and 5301 transitions. [2023-12-15 18:01:46,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-15 18:01:46,042 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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 87 [2023-12-15 18:01:46,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:46,051 INFO L225 Difference]: With dead ends: 3358 [2023-12-15 18:01:46,052 INFO L226 Difference]: Without dead ends: 3297 [2023-12-15 18:01:46,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2023-12-15 18:01:46,054 INFO L413 NwaCegarLoop]: 1594 mSDtfsCounter, 13544 mSDsluCounter, 3889 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13544 SdHoareTripleChecker+Valid, 5483 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:46,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13544 Valid, 5483 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 18:01:46,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2023-12-15 18:01:46,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 2441. [2023-12-15 18:01:46,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 2439 states have (on average 1.5633456334563345) internal successors, (3813), 2440 states have internal predecessors, (3813), 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 18:01:46,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3813 transitions. [2023-12-15 18:01:46,095 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3813 transitions. Word has length 87 [2023-12-15 18:01:46,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:46,095 INFO L495 AbstractCegarLoop]: Abstraction has 2441 states and 3813 transitions. [2023-12-15 18:01:46,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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 18:01:46,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3813 transitions. [2023-12-15 18:01:46,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-15 18:01:46,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:46,096 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:46,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 18:01:46,097 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:46,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:46,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1377992502, now seen corresponding path program 1 times [2023-12-15 18:01:46,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:46,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110940797] [2023-12-15 18:01:46,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:46,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:46,166 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 18:01:46,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:46,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110940797] [2023-12-15 18:01:46,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110940797] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:46,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:46,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:46,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170813093] [2023-12-15 18:01:46,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:46,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:46,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:46,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:46,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:46,168 INFO L87 Difference]: Start difference. First operand 2441 states and 3813 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 18:01:46,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:46,205 INFO L93 Difference]: Finished difference Result 2670 states and 4184 transitions. [2023-12-15 18:01:46,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:46,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 89 [2023-12-15 18:01:46,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:46,214 INFO L225 Difference]: With dead ends: 2670 [2023-12-15 18:01:46,215 INFO L226 Difference]: Without dead ends: 2550 [2023-12-15 18:01:46,216 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 18:01:46,216 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 1506 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:46,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1687 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:46,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2023-12-15 18:01:46,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 2546. [2023-12-15 18:01:46,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2546 states, 2544 states have (on average 1.5648584905660377) internal successors, (3981), 2545 states have internal predecessors, (3981), 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 18:01:46,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2546 states to 2546 states and 3981 transitions. [2023-12-15 18:01:46,261 INFO L78 Accepts]: Start accepts. Automaton has 2546 states and 3981 transitions. Word has length 89 [2023-12-15 18:01:46,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:46,262 INFO L495 AbstractCegarLoop]: Abstraction has 2546 states and 3981 transitions. [2023-12-15 18:01:46,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 18:01:46,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2546 states and 3981 transitions. [2023-12-15 18:01:46,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-15 18:01:46,263 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:46,263 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:46,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 18:01:46,263 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:46,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:46,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1380137454, now seen corresponding path program 1 times [2023-12-15 18:01:46,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:46,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972756454] [2023-12-15 18:01:46,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:46,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:46,637 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 18:01:46,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:46,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972756454] [2023-12-15 18:01:46,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972756454] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:46,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:46,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 18:01:46,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765044572] [2023-12-15 18:01:46,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:46,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 18:01:46,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:46,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 18:01:46,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-15 18:01:46,639 INFO L87 Difference]: Start difference. First operand 2546 states and 3981 transitions. Second operand has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 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 18:01:47,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:47,002 INFO L93 Difference]: Finished difference Result 2773 states and 4345 transitions. [2023-12-15 18:01:47,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 18:01:47,003 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 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 89 [2023-12-15 18:01:47,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:47,009 INFO L225 Difference]: With dead ends: 2773 [2023-12-15 18:01:47,009 INFO L226 Difference]: Without dead ends: 2548 [2023-12-15 18:01:47,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2023-12-15 18:01:47,011 INFO L413 NwaCegarLoop]: 1590 mSDtfsCounter, 6112 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6112 SdHoareTripleChecker+Valid, 2258 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:47,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6112 Valid, 2258 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:47,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2023-12-15 18:01:47,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 2546. [2023-12-15 18:01:47,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2546 states, 2544 states have (on average 1.564072327044025) internal successors, (3979), 2545 states have internal predecessors, (3979), 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 18:01:47,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2546 states to 2546 states and 3979 transitions. [2023-12-15 18:01:47,044 INFO L78 Accepts]: Start accepts. Automaton has 2546 states and 3979 transitions. Word has length 89 [2023-12-15 18:01:47,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:47,044 INFO L495 AbstractCegarLoop]: Abstraction has 2546 states and 3979 transitions. [2023-12-15 18:01:47,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 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 18:01:47,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2546 states and 3979 transitions. [2023-12-15 18:01:47,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-15 18:01:47,045 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:47,045 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:47,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 18:01:47,046 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:47,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:47,046 INFO L85 PathProgramCache]: Analyzing trace with hash -294342910, now seen corresponding path program 1 times [2023-12-15 18:01:47,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:47,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770636518] [2023-12-15 18:01:47,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:47,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:47,219 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 18:01:47,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:47,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770636518] [2023-12-15 18:01:47,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770636518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:47,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:47,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 18:01:47,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144800274] [2023-12-15 18:01:47,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:47,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 18:01:47,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:47,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 18:01:47,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:01:47,221 INFO L87 Difference]: Start difference. First operand 2546 states and 3979 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 18:01:47,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:47,250 INFO L93 Difference]: Finished difference Result 2554 states and 3988 transitions. [2023-12-15 18:01:47,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 18:01:47,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 90 [2023-12-15 18:01:47,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:47,258 INFO L225 Difference]: With dead ends: 2554 [2023-12-15 18:01:47,258 INFO L226 Difference]: Without dead ends: 2552 [2023-12-15 18:01:47,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:01:47,261 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 1 mSDsluCounter, 3190 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4789 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:47,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4789 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:47,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2023-12-15 18:01:47,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2550. [2023-12-15 18:01:47,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2548 states have (on average 1.5627943485086342) internal successors, (3982), 2549 states have internal predecessors, (3982), 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 18:01:47,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3982 transitions. [2023-12-15 18:01:47,295 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3982 transitions. Word has length 90 [2023-12-15 18:01:47,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:47,296 INFO L495 AbstractCegarLoop]: Abstraction has 2550 states and 3982 transitions. [2023-12-15 18:01:47,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 18:01:47,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3982 transitions. [2023-12-15 18:01:47,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:47,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:47,297 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:47,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 18:01:47,297 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:47,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:47,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1953030514, now seen corresponding path program 1 times [2023-12-15 18:01:47,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:47,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63722350] [2023-12-15 18:01:47,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:47,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:47,354 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 18:01:47,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:47,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63722350] [2023-12-15 18:01:47,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63722350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:47,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:47,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:47,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836458295] [2023-12-15 18:01:47,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:47,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:47,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:47,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:47,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:47,356 INFO L87 Difference]: Start difference. First operand 2550 states and 3982 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 18:01:47,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:47,380 INFO L93 Difference]: Finished difference Result 2992 states and 4682 transitions. [2023-12-15 18:01:47,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:47,381 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 91 [2023-12-15 18:01:47,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:47,387 INFO L225 Difference]: With dead ends: 2992 [2023-12-15 18:01:47,387 INFO L226 Difference]: Without dead ends: 2763 [2023-12-15 18:01:47,388 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 18:01:47,389 INFO L413 NwaCegarLoop]: 1675 mSDtfsCounter, 1525 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:47,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 1778 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:47,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2023-12-15 18:01:47,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2761. [2023-12-15 18:01:47,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2761 states, 2759 states have (on average 1.563247553461399) internal successors, (4313), 2760 states have internal predecessors, (4313), 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 18:01:47,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2761 states to 2761 states and 4313 transitions. [2023-12-15 18:01:47,426 INFO L78 Accepts]: Start accepts. Automaton has 2761 states and 4313 transitions. Word has length 91 [2023-12-15 18:01:47,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:47,427 INFO L495 AbstractCegarLoop]: Abstraction has 2761 states and 4313 transitions. [2023-12-15 18:01:47,427 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 18:01:47,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2761 states and 4313 transitions. [2023-12-15 18:01:47,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:47,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:47,428 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:47,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 18:01:47,428 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:47,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:47,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1197646450, now seen corresponding path program 1 times [2023-12-15 18:01:47,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:47,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832627272] [2023-12-15 18:01:47,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:47,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:47,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:47,487 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 18:01:47,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:47,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832627272] [2023-12-15 18:01:47,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832627272] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:47,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:47,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:47,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810031851] [2023-12-15 18:01:47,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:47,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:47,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:47,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:47,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:47,490 INFO L87 Difference]: Start difference. First operand 2761 states and 4313 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 18:01:47,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:47,522 INFO L93 Difference]: Finished difference Result 3609 states and 5647 transitions. [2023-12-15 18:01:47,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:47,523 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 91 [2023-12-15 18:01:47,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:47,533 INFO L225 Difference]: With dead ends: 3609 [2023-12-15 18:01:47,533 INFO L226 Difference]: Without dead ends: 3169 [2023-12-15 18:01:47,534 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 18:01:47,536 INFO L413 NwaCegarLoop]: 1673 mSDtfsCounter, 1523 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:47,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1780 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:47,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2023-12-15 18:01:47,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 3167. [2023-12-15 18:01:47,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3167 states, 3165 states have (on average 1.5617693522906793) internal successors, (4943), 3166 states have internal predecessors, (4943), 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 18:01:47,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3167 states to 3167 states and 4943 transitions. [2023-12-15 18:01:47,580 INFO L78 Accepts]: Start accepts. Automaton has 3167 states and 4943 transitions. Word has length 91 [2023-12-15 18:01:47,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:47,581 INFO L495 AbstractCegarLoop]: Abstraction has 3167 states and 4943 transitions. [2023-12-15 18:01:47,581 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 18:01:47,581 INFO L276 IsEmpty]: Start isEmpty. Operand 3167 states and 4943 transitions. [2023-12-15 18:01:47,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:47,582 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:47,582 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:47,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 18:01:47,582 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:47,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:47,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1876616306, now seen corresponding path program 1 times [2023-12-15 18:01:47,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:47,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013635027] [2023-12-15 18:01:47,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:47,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:47,636 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 18:01:47,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:47,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013635027] [2023-12-15 18:01:47,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013635027] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:47,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:47,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:47,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787735618] [2023-12-15 18:01:47,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:47,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:47,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:47,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:47,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:47,637 INFO L87 Difference]: Start difference. First operand 3167 states and 4943 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 18:01:47,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:47,678 INFO L93 Difference]: Finished difference Result 4795 states and 7481 transitions. [2023-12-15 18:01:47,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:47,679 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 91 [2023-12-15 18:01:47,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:47,701 INFO L225 Difference]: With dead ends: 4795 [2023-12-15 18:01:47,701 INFO L226 Difference]: Without dead ends: 3949 [2023-12-15 18:01:47,704 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 18:01:47,704 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 1519 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:47,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1776 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:47,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3949 states. [2023-12-15 18:01:47,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3949 to 3947. [2023-12-15 18:01:47,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3945 states have (on average 1.5561470215462612) internal successors, (6139), 3946 states have internal predecessors, (6139), 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 18:01:47,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 6139 transitions. [2023-12-15 18:01:47,833 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 6139 transitions. Word has length 91 [2023-12-15 18:01:47,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:47,833 INFO L495 AbstractCegarLoop]: Abstraction has 3947 states and 6139 transitions. [2023-12-15 18:01:47,833 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 18:01:47,833 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 6139 transitions. [2023-12-15 18:01:47,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:47,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:47,834 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:47,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 18:01:47,834 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:47,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:47,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1836672370, now seen corresponding path program 1 times [2023-12-15 18:01:47,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:47,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545637866] [2023-12-15 18:01:47,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:47,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:47,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:47,884 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 18:01:47,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:47,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545637866] [2023-12-15 18:01:47,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545637866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:47,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:47,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:47,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054978642] [2023-12-15 18:01:47,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:47,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:47,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:47,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:47,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:47,885 INFO L87 Difference]: Start difference. First operand 3947 states and 6139 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 18:01:47,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:47,943 INFO L93 Difference]: Finished difference Result 7071 states and 10957 transitions. [2023-12-15 18:01:47,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:47,944 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 91 [2023-12-15 18:01:47,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:47,952 INFO L225 Difference]: With dead ends: 7071 [2023-12-15 18:01:47,952 INFO L226 Difference]: Without dead ends: 5445 [2023-12-15 18:01:47,955 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 18:01:47,955 INFO L413 NwaCegarLoop]: 1659 mSDtfsCounter, 1517 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:47,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1778 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:47,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2023-12-15 18:01:48,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5443. [2023-12-15 18:01:48,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5441 states have (on average 1.5443852233045396) internal successors, (8403), 5442 states have internal predecessors, (8403), 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 18:01:48,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 8403 transitions. [2023-12-15 18:01:48,050 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 8403 transitions. Word has length 91 [2023-12-15 18:01:48,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:48,050 INFO L495 AbstractCegarLoop]: Abstraction has 5443 states and 8403 transitions. [2023-12-15 18:01:48,051 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 18:01:48,051 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 8403 transitions. [2023-12-15 18:01:48,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:48,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:48,051 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:48,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 18:01:48,052 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:48,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:48,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1573594994, now seen corresponding path program 1 times [2023-12-15 18:01:48,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:48,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256044699] [2023-12-15 18:01:48,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:48,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:48,101 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 18:01:48,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:48,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256044699] [2023-12-15 18:01:48,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256044699] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:48,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:48,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:48,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384276942] [2023-12-15 18:01:48,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:48,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:48,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:48,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:48,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:48,103 INFO L87 Difference]: Start difference. First operand 5443 states and 8403 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 18:01:48,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:48,199 INFO L93 Difference]: Finished difference Result 11431 states and 17525 transitions. [2023-12-15 18:01:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:48,200 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 91 [2023-12-15 18:01:48,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:48,213 INFO L225 Difference]: With dead ends: 11431 [2023-12-15 18:01:48,213 INFO L226 Difference]: Without dead ends: 8309 [2023-12-15 18:01:48,219 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 18:01:48,220 INFO L413 NwaCegarLoop]: 1647 mSDtfsCounter, 1513 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:48,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1774 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:48,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8309 states. [2023-12-15 18:01:48,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8309 to 8307. [2023-12-15 18:01:48,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8307 states, 8305 states have (on average 1.5261890427453342) internal successors, (12675), 8306 states have internal predecessors, (12675), 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 18:01:48,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8307 states to 8307 states and 12675 transitions. [2023-12-15 18:01:48,396 INFO L78 Accepts]: Start accepts. Automaton has 8307 states and 12675 transitions. Word has length 91 [2023-12-15 18:01:48,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:48,397 INFO L495 AbstractCegarLoop]: Abstraction has 8307 states and 12675 transitions. [2023-12-15 18:01:48,397 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 18:01:48,397 INFO L276 IsEmpty]: Start isEmpty. Operand 8307 states and 12675 transitions. [2023-12-15 18:01:48,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:48,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:48,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:48,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 18:01:48,398 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:48,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:48,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1832638862, now seen corresponding path program 1 times [2023-12-15 18:01:48,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:48,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754135111] [2023-12-15 18:01:48,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:48,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:48,458 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 18:01:48,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:48,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754135111] [2023-12-15 18:01:48,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754135111] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:48,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:48,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:48,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507919125] [2023-12-15 18:01:48,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:48,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:48,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:48,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:48,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:48,460 INFO L87 Difference]: Start difference. First operand 8307 states and 12675 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 18:01:48,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:48,632 INFO L93 Difference]: Finished difference Result 19767 states and 29893 transitions. [2023-12-15 18:01:48,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:48,633 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 91 [2023-12-15 18:01:48,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:48,655 INFO L225 Difference]: With dead ends: 19767 [2023-12-15 18:01:48,656 INFO L226 Difference]: Without dead ends: 13781 [2023-12-15 18:01:48,666 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 18:01:48,667 INFO L413 NwaCegarLoop]: 1657 mSDtfsCounter, 1515 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:48,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1780 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:48,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13781 states. [2023-12-15 18:01:48,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13781 to 13779. [2023-12-15 18:01:49,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13779 states, 13777 states have (on average 1.503012266821514) internal successors, (20707), 13778 states have internal predecessors, (20707), 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 18:01:49,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13779 states to 13779 states and 20707 transitions. [2023-12-15 18:01:49,030 INFO L78 Accepts]: Start accepts. Automaton has 13779 states and 20707 transitions. Word has length 91 [2023-12-15 18:01:49,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:49,031 INFO L495 AbstractCegarLoop]: Abstraction has 13779 states and 20707 transitions. [2023-12-15 18:01:49,031 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 18:01:49,031 INFO L276 IsEmpty]: Start isEmpty. Operand 13779 states and 20707 transitions. [2023-12-15 18:01:49,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:49,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:49,032 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:49,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 18:01:49,032 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:49,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:49,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1608033138, now seen corresponding path program 1 times [2023-12-15 18:01:49,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:49,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432114953] [2023-12-15 18:01:49,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:49,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:49,087 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 18:01:49,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:49,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432114953] [2023-12-15 18:01:49,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432114953] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:49,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:49,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:49,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815800005] [2023-12-15 18:01:49,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:49,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:49,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:49,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:49,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:49,089 INFO L87 Difference]: Start difference. First operand 13779 states and 20707 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 18:01:49,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:49,405 INFO L93 Difference]: Finished difference Result 35671 states and 53093 transitions. [2023-12-15 18:01:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:49,405 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 91 [2023-12-15 18:01:49,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:49,446 INFO L225 Difference]: With dead ends: 35671 [2023-12-15 18:01:49,446 INFO L226 Difference]: Without dead ends: 24213 [2023-12-15 18:01:49,465 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 18:01:49,465 INFO L413 NwaCegarLoop]: 1671 mSDtfsCounter, 1521 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:49,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1782 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:49,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24213 states. [2023-12-15 18:01:50,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24213 to 24211. [2023-12-15 18:01:50,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24211 states, 24209 states have (on average 1.4765996117146516) internal successors, (35747), 24210 states have internal predecessors, (35747), 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 18:01:50,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24211 states to 24211 states and 35747 transitions. [2023-12-15 18:01:50,076 INFO L78 Accepts]: Start accepts. Automaton has 24211 states and 35747 transitions. Word has length 91 [2023-12-15 18:01:50,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:50,077 INFO L495 AbstractCegarLoop]: Abstraction has 24211 states and 35747 transitions. [2023-12-15 18:01:50,077 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 18:01:50,077 INFO L276 IsEmpty]: Start isEmpty. Operand 24211 states and 35747 transitions. [2023-12-15 18:01:50,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-15 18:01:50,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:50,078 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:50,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 18:01:50,078 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:50,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:50,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1270174003, now seen corresponding path program 1 times [2023-12-15 18:01:50,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:50,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079094995] [2023-12-15 18:01:50,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:50,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:50,140 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 18:01:50,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:50,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079094995] [2023-12-15 18:01:50,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079094995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:50,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:50,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:50,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002588842] [2023-12-15 18:01:50,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:50,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:50,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:50,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:50,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:50,141 INFO L87 Difference]: Start difference. First operand 24211 states and 35747 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 18:01:50,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:50,574 INFO L93 Difference]: Finished difference Result 46746 states and 69289 transitions. [2023-12-15 18:01:50,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:50,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2023-12-15 18:01:50,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:50,637 INFO L225 Difference]: With dead ends: 46746 [2023-12-15 18:01:50,638 INFO L226 Difference]: Without dead ends: 34711 [2023-12-15 18:01:50,659 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 18:01:50,660 INFO L413 NwaCegarLoop]: 1680 mSDtfsCounter, 1524 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:50,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1779 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:50,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34711 states. [2023-12-15 18:01:51,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34711 to 34709. [2023-12-15 18:01:51,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34709 states, 34707 states have (on average 1.4688967643414874) internal successors, (50981), 34708 states have internal predecessors, (50981), 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 18:01:51,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34709 states to 34709 states and 50981 transitions. [2023-12-15 18:01:51,574 INFO L78 Accepts]: Start accepts. Automaton has 34709 states and 50981 transitions. Word has length 93 [2023-12-15 18:01:51,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:51,574 INFO L495 AbstractCegarLoop]: Abstraction has 34709 states and 50981 transitions. [2023-12-15 18:01:51,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 18:01:51,574 INFO L276 IsEmpty]: Start isEmpty. Operand 34709 states and 50981 transitions. [2023-12-15 18:01:51,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 18:01:51,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:51,580 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:51,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 18:01:51,581 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:51,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:51,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1909067792, now seen corresponding path program 1 times [2023-12-15 18:01:51,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:51,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209582438] [2023-12-15 18:01:51,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:51,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:51,802 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-15 18:01:51,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:51,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209582438] [2023-12-15 18:01:51,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209582438] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:51,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:51,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 18:01:51,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462596490] [2023-12-15 18:01:51,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:51,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 18:01:51,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:51,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 18:01:51,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-15 18:01:51,806 INFO L87 Difference]: Start difference. First operand 34709 states and 50981 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 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 18:01:56,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:56,037 INFO L93 Difference]: Finished difference Result 300199 states and 438958 transitions. [2023-12-15 18:01:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 18:01:56,038 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 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 115 [2023-12-15 18:01:56,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:56,746 INFO L225 Difference]: With dead ends: 300199 [2023-12-15 18:01:56,747 INFO L226 Difference]: Without dead ends: 267813 [2023-12-15 18:01:56,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-15 18:01:56,808 INFO L413 NwaCegarLoop]: 1698 mSDtfsCounter, 11812 mSDsluCounter, 3228 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11812 SdHoareTripleChecker+Valid, 4926 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:56,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11812 Valid, 4926 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:57,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267813 states. [2023-12-15 18:01:59,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267813 to 67093. [2023-12-15 18:02:00,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67093 states, 67091 states have (on average 1.460061707233459) internal successors, (97957), 67092 states have internal predecessors, (97957), 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 18:02:00,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67093 states to 67093 states and 97957 transitions. [2023-12-15 18:02:00,134 INFO L78 Accepts]: Start accepts. Automaton has 67093 states and 97957 transitions. Word has length 115 [2023-12-15 18:02:00,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:02:00,134 INFO L495 AbstractCegarLoop]: Abstraction has 67093 states and 97957 transitions. [2023-12-15 18:02:00,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 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 18:02:00,134 INFO L276 IsEmpty]: Start isEmpty. Operand 67093 states and 97957 transitions. [2023-12-15 18:02:00,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 18:02:00,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:02:00,145 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:02:00,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 18:02:00,145 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:02:00,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:02:00,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1630515440, now seen corresponding path program 1 times [2023-12-15 18:02:00,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:02:00,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875047254] [2023-12-15 18:02:00,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:02:00,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:02:00,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:02:00,374 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-15 18:02:00,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:02:00,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875047254] [2023-12-15 18:02:00,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875047254] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:02:00,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:02:00,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 18:02:00,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607308467] [2023-12-15 18:02:00,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:02:00,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 18:02:00,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:02:00,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 18:02:00,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-15 18:02:00,376 INFO L87 Difference]: Start difference. First operand 67093 states and 97957 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 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 18:02:06,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:02:06,355 INFO L93 Difference]: Finished difference Result 332583 states and 485934 transitions. [2023-12-15 18:02:06,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 18:02:06,356 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 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 115 [2023-12-15 18:02:06,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:02:07,051 INFO L225 Difference]: With dead ends: 332583 [2023-12-15 18:02:07,051 INFO L226 Difference]: Without dead ends: 300197 [2023-12-15 18:02:07,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-15 18:02:07,108 INFO L413 NwaCegarLoop]: 1695 mSDtfsCounter, 11856 mSDsluCounter, 3074 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11856 SdHoareTripleChecker+Valid, 4769 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:02:07,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11856 Valid, 4769 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:02:07,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300197 states. [2023-12-15 18:02:11,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300197 to 115733. [2023-12-15 18:02:11,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115733 states, 115731 states have (on average 1.4525148836526083) internal successors, (168101), 115732 states have internal predecessors, (168101), 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 18:02:11,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115733 states to 115733 states and 168101 transitions. [2023-12-15 18:02:11,884 INFO L78 Accepts]: Start accepts. Automaton has 115733 states and 168101 transitions. Word has length 115 [2023-12-15 18:02:11,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:02:11,884 INFO L495 AbstractCegarLoop]: Abstraction has 115733 states and 168101 transitions. [2023-12-15 18:02:11,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 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 18:02:11,884 INFO L276 IsEmpty]: Start isEmpty. Operand 115733 states and 168101 transitions. [2023-12-15 18:02:11,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 18:02:11,891 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:02:11,891 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:02:11,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 18:02:11,891 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:02:11,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:02:11,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1985482000, now seen corresponding path program 1 times [2023-12-15 18:02:11,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:02:11,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647497834] [2023-12-15 18:02:11,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:02:11,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:02:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:02:12,273 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-15 18:02:12,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:02:12,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647497834] [2023-12-15 18:02:12,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647497834] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:02:12,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:02:12,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 18:02:12,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254416979] [2023-12-15 18:02:12,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:02:12,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 18:02:12,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:02:12,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 18:02:12,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-15 18:02:12,275 INFO L87 Difference]: Start difference. First operand 115733 states and 168101 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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 18:02:19,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:02:19,513 INFO L93 Difference]: Finished difference Result 364967 states and 532910 transitions. [2023-12-15 18:02:19,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 18:02:19,513 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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 115 [2023-12-15 18:02:19,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:02:20,309 INFO L225 Difference]: With dead ends: 364967 [2023-12-15 18:02:20,309 INFO L226 Difference]: Without dead ends: 332581 [2023-12-15 18:02:20,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-15 18:02:20,400 INFO L413 NwaCegarLoop]: 1692 mSDtfsCounter, 11923 mSDsluCounter, 3105 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11923 SdHoareTripleChecker+Valid, 4797 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:02:20,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11923 Valid, 4797 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:02:20,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332581 states. [2023-12-15 18:02:26,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332581 to 148117. [2023-12-15 18:02:26,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148117 states, 148115 states have (on average 1.4520946561793202) internal successors, (215077), 148116 states have internal predecessors, (215077), 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 18:02:26,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148117 states to 148117 states and 215077 transitions. [2023-12-15 18:02:26,700 INFO L78 Accepts]: Start accepts. Automaton has 148117 states and 215077 transitions. Word has length 115 [2023-12-15 18:02:26,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:02:26,700 INFO L495 AbstractCegarLoop]: Abstraction has 148117 states and 215077 transitions. [2023-12-15 18:02:26,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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 18:02:26,700 INFO L276 IsEmpty]: Start isEmpty. Operand 148117 states and 215077 transitions. [2023-12-15 18:02:26,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 18:02:26,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:02:26,707 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:02:26,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 18:02:26,707 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:02:26,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:02:26,707 INFO L85 PathProgramCache]: Analyzing trace with hash 2025425936, now seen corresponding path program 1 times [2023-12-15 18:02:26,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:02:26,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684408324] [2023-12-15 18:02:26,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:02:26,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:02:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:02:26,884 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-15 18:02:26,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:02:26,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684408324] [2023-12-15 18:02:26,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684408324] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:02:26,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:02:26,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 18:02:26,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515217136] [2023-12-15 18:02:26,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:02:26,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 18:02:26,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:02:26,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 18:02:26,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-15 18:02:26,887 INFO L87 Difference]: Start difference. First operand 148117 states and 215077 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 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) Received shutdown request... [2023-12-15 18:02:32,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 18:02:32,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-15 18:02:32,927 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 3183 mSDsluCounter, 1719 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3183 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:02:32,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3183 Valid, 2125 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:02:32,928 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-15 18:02:32,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 18:02:32,929 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (148117states) and FLOYD_HOARE automaton (currently 10 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (244863 states constructed, input type IntersectNwa). [2023-12-15 18:02:32,931 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-15 18:02:32,942 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] [2023-12-15 18:02:32,945 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 18:02:32,950 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 18:02:32,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 06:02:32 BoogieIcfgContainer [2023-12-15 18:02:32,956 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 18:02:32,957 INFO L158 Benchmark]: Toolchain (without parser) took 59577.42ms. Allocated memory was 350.2MB in the beginning and 6.9GB in the end (delta: 6.5GB). Free memory was 285.4MB in the beginning and 4.7GB in the end (delta: -4.4GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2023-12-15 18:02:32,957 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 209.7MB. Free memory is still 161.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 18:02:32,957 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1378.70ms. Allocated memory is still 350.2MB. Free memory was 285.4MB in the beginning and 170.3MB in the end (delta: 115.1MB). Peak memory consumption was 116.3MB. Max. memory is 8.0GB. [2023-12-15 18:02:32,957 INFO L158 Benchmark]: Boogie Procedure Inliner took 330.34ms. Allocated memory is still 350.2MB. Free memory was 170.3MB in the beginning and 240.4MB in the end (delta: -70.1MB). Peak memory consumption was 72.5MB. Max. memory is 8.0GB. [2023-12-15 18:02:32,957 INFO L158 Benchmark]: Boogie Preprocessor took 402.30ms. Allocated memory was 350.2MB in the beginning and 549.5MB in the end (delta: 199.2MB). Free memory was 240.4MB in the beginning and 426.6MB in the end (delta: -186.1MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. [2023-12-15 18:02:32,958 INFO L158 Benchmark]: RCFGBuilder took 3224.61ms. Allocated memory was 549.5MB in the beginning and 847.2MB in the end (delta: 297.8MB). Free memory was 426.6MB in the beginning and 585.1MB in the end (delta: -158.5MB). Peak memory consumption was 204.8MB. Max. memory is 8.0GB. [2023-12-15 18:02:32,958 INFO L158 Benchmark]: TraceAbstraction took 54235.46ms. Allocated memory was 847.2MB in the beginning and 6.9GB in the end (delta: 6.0GB). Free memory was 584.0MB in the beginning and 4.7GB in the end (delta: -4.1GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-15 18:02:32,959 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 209.7MB. Free memory is still 161.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1378.70ms. Allocated memory is still 350.2MB. Free memory was 285.4MB in the beginning and 170.3MB in the end (delta: 115.1MB). Peak memory consumption was 116.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 330.34ms. Allocated memory is still 350.2MB. Free memory was 170.3MB in the beginning and 240.4MB in the end (delta: -70.1MB). Peak memory consumption was 72.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 402.30ms. Allocated memory was 350.2MB in the beginning and 549.5MB in the end (delta: 199.2MB). Free memory was 240.4MB in the beginning and 426.6MB in the end (delta: -186.1MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. * RCFGBuilder took 3224.61ms. Allocated memory was 549.5MB in the beginning and 847.2MB in the end (delta: 297.8MB). Free memory was 426.6MB in the beginning and 585.1MB in the end (delta: -158.5MB). Peak memory consumption was 204.8MB. Max. memory is 8.0GB. * TraceAbstraction took 54235.46ms. Allocated memory was 847.2MB in the beginning and 6.9GB in the end (delta: 6.0GB). Free memory was 584.0MB in the beginning and 4.7GB in the end (delta: -4.1GB). Peak memory consumption was 2.3GB. 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: 685]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 685). Cancelled while NwaCegarLoop was constructing difference of abstraction (148117states) and FLOYD_HOARE automaton (currently 10 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (244863 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 880]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 880). Cancelled while NwaCegarLoop was constructing difference of abstraction (148117states) and FLOYD_HOARE automaton (currently 10 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (244863 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 884 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 54.2s, OverallIterations: 19, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 33.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 74616 SdHoareTripleChecker+Valid, 6.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74616 mSDsluCounter, 52496 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23143 mSDsCounter, 1282 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6974 IncrementalHoareTripleChecker+Invalid, 8256 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1282 mSolverCounterUnsat, 29353 mSDtfsCounter, 6974 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148117occurred in iteration=18, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 17.1s AutomataMinimizationTime, 18 MinimizatonAttempts, 570528 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1658 NumberOfCodeBlocks, 1658 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1639 ConstructedInterpolants, 0 QuantifiedInterpolants, 11320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 80/80 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