/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/eca-rers2012/Problem12_label14.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 18:49:22,217 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 18:49:22,296 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 18:49:22,302 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 18:49:22,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 18:49:22,326 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 18:49:22,327 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 18:49:22,327 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 18:49:22,327 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 18:49:22,333 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 18:49:22,334 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 18:49:22,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 18:49:22,335 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 18:49:22,339 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 18:49:22,339 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 18:49:22,339 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 18:49:22,340 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 18:49:22,340 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 18:49:22,341 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 18:49:22,341 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 18:49:22,341 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 18:49:22,341 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 18:49:22,342 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 18:49:22,342 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 18:49:22,342 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 18:49:22,342 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 18:49:22,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 18:49:22,343 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 18:49:22,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 18:49:22,343 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 18:49:22,344 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 18:49:22,344 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 18:49:22,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 18:49:22,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 18:49:22,345 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 18:49:22,345 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 18:49:22,345 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 18:49:22,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 18:49:22,345 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 18:49:22,346 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 18:49:22,346 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 18:49:22,346 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 18:49:22,346 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 18:49:22,346 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 18:49:22,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 18:49:22,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 18:49:22,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 18:49:22,621 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 18:49:22,622 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 18:49:22,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label14.c [2023-12-15 18:49:23,704 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 18:49:24,100 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 18:49:24,101 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label14.c [2023-12-15 18:49:24,129 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cc51839a/c814341413ce40cea161974d1a813e3a/FLAG3e6ce62a4 [2023-12-15 18:49:24,144 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cc51839a/c814341413ce40cea161974d1a813e3a [2023-12-15 18:49:24,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 18:49:24,147 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 18:49:24,151 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 18:49:24,151 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 18:49:24,155 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 18:49:24,156 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 06:49:24" (1/1) ... [2023-12-15 18:49:24,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34da3a92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:49:24, skipping insertion in model container [2023-12-15 18:49:24,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 06:49:24" (1/1) ... [2023-12-15 18:49:24,255 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 18:49:24,505 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label14.c[6042,6055] [2023-12-15 18:49:25,210 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 18:49:25,220 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 18:49:25,247 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label14.c[6042,6055] [2023-12-15 18:49:25,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 18:49:25,658 INFO L206 MainTranslator]: Completed translation [2023-12-15 18:49:25,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:49:25 WrapperNode [2023-12-15 18:49:25,659 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 18:49:25,661 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 18:49:25,661 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 18:49:25,661 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 18:49:25,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:49:25" (1/1) ... [2023-12-15 18:49:25,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:49:25" (1/1) ... [2023-12-15 18:49:25,995 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4761 [2023-12-15 18:49:25,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 18:49:25,996 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 18:49:25,996 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 18:49:25,996 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 18:49:26,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:49:25" (1/1) ... [2023-12-15 18:49:26,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:49:25" (1/1) ... [2023-12-15 18:49:26,060 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:49:25" (1/1) ... [2023-12-15 18:49:26,292 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 18:49:26,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:49:25" (1/1) ... [2023-12-15 18:49:26,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:49:25" (1/1) ... [2023-12-15 18:49:26,428 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:49:25" (1/1) ... [2023-12-15 18:49:26,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:49:25" (1/1) ... [2023-12-15 18:49:26,491 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:49:25" (1/1) ... [2023-12-15 18:49:26,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:49:25" (1/1) ... [2023-12-15 18:49:26,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 18:49:26,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 18:49:26,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 18:49:26,586 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 18:49:26,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:49:25" (1/1) ... [2023-12-15 18:49:26,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 18:49:26,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 18:49:26,621 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 18:49:26,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 18:49:26,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 18:49:26,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 18:49:26,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 18:49:26,652 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 18:49:26,727 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 18:49:26,730 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 18:49:30,414 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 18:49:30,474 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 18:49:30,474 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 18:49:30,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 06:49:30 BoogieIcfgContainer [2023-12-15 18:49:30,475 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 18:49:30,477 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 18:49:30,477 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 18:49:30,480 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 18:49:30,480 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 06:49:24" (1/3) ... [2023-12-15 18:49:30,481 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14492c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 06:49:30, skipping insertion in model container [2023-12-15 18:49:30,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:49:25" (2/3) ... [2023-12-15 18:49:30,481 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14492c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 06:49:30, skipping insertion in model container [2023-12-15 18:49:30,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 06:49:30" (3/3) ... [2023-12-15 18:49:30,482 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label14.c [2023-12-15 18:49:30,497 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 18:49:30,497 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 18:49:30,564 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 18:49:30,571 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;@1dbcf90c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 18:49:30,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 18:49:30,579 INFO L276 IsEmpty]: Start isEmpty. Operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 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 18:49:30,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-15 18:49:30,586 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:49:30,587 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] [2023-12-15 18:49:30,588 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:49:30,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:49:30,594 INFO L85 PathProgramCache]: Analyzing trace with hash -689574888, now seen corresponding path program 1 times [2023-12-15 18:49:30,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:49:30,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864981555] [2023-12-15 18:49:30,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:49:30,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:49:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:49:30,786 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 18:49:30,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:49:30,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864981555] [2023-12-15 18:49:30,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864981555] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:49:30,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:49:30,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 18:49:30,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822412741] [2023-12-15 18:49:30,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:49:30,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 18:49:30,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:49:30,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 18:49:30,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 18:49:30,827 INFO L87 Difference]: Start difference. First operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 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 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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 18:49:30,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:49:30,914 INFO L93 Difference]: Finished difference Result 1511 states and 3005 transitions. [2023-12-15 18:49:30,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 18:49:30,916 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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 47 [2023-12-15 18:49:30,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:49:30,935 INFO L225 Difference]: With dead ends: 1511 [2023-12-15 18:49:30,935 INFO L226 Difference]: Without dead ends: 754 [2023-12-15 18:49:30,940 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 18:49:30,943 INFO L413 NwaCegarLoop]: 1438 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:49:30,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1438 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:49:30,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2023-12-15 18:49:31,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2023-12-15 18:49:31,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 753 states have (on average 1.9096945551128819) internal successors, (1438), 753 states have internal predecessors, (1438), 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 18:49:31,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1438 transitions. [2023-12-15 18:49:31,030 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1438 transitions. Word has length 47 [2023-12-15 18:49:31,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:49:31,030 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 1438 transitions. [2023-12-15 18:49:31,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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 18:49:31,030 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1438 transitions. [2023-12-15 18:49:31,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-15 18:49:31,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:49:31,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:49:31,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 18:49:31,032 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:49:31,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:49:31,032 INFO L85 PathProgramCache]: Analyzing trace with hash 123998545, now seen corresponding path program 1 times [2023-12-15 18:49:31,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:49:31,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049255894] [2023-12-15 18:49:31,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:49:31,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:49:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:49:31,354 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 18:49:31,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:49:31,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049255894] [2023-12-15 18:49:31,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049255894] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:49:31,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:49:31,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:49:31,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971604410] [2023-12-15 18:49:31,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:49:31,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 18:49:31,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:49:31,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 18:49:31,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:49:31,362 INFO L87 Difference]: Start difference. First operand 754 states and 1438 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 18:49:37,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:49:37,368 INFO L93 Difference]: Finished difference Result 3009 states and 5747 transitions. [2023-12-15 18:49:37,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 18:49:37,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 47 [2023-12-15 18:49:37,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:49:37,379 INFO L225 Difference]: With dead ends: 3009 [2023-12-15 18:49:37,379 INFO L226 Difference]: Without dead ends: 2256 [2023-12-15 18:49:37,381 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 18:49:37,381 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 2203 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5519 mSolverCounterSat, 1100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2203 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 6619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1100 IncrementalHoareTripleChecker+Valid, 5519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-12-15 18:49:37,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2203 Valid, 709 Invalid, 6619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1100 Valid, 5519 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-12-15 18:49:37,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2023-12-15 18:49:37,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 2256. [2023-12-15 18:49:37,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2256 states, 2255 states have (on average 1.5804878048780489) internal successors, (3564), 2255 states have internal predecessors, (3564), 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 18:49:37,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2256 states to 2256 states and 3564 transitions. [2023-12-15 18:49:37,435 INFO L78 Accepts]: Start accepts. Automaton has 2256 states and 3564 transitions. Word has length 47 [2023-12-15 18:49:37,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:49:37,435 INFO L495 AbstractCegarLoop]: Abstraction has 2256 states and 3564 transitions. [2023-12-15 18:49:37,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 18:49:37,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2256 states and 3564 transitions. [2023-12-15 18:49:37,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-15 18:49:37,439 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:49:37,439 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-15 18:49:37,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 18:49:37,439 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:49:37,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:49:37,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1076581314, now seen corresponding path program 1 times [2023-12-15 18:49:37,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:49:37,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722966947] [2023-12-15 18:49:37,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:49:37,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:49:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:49:37,770 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:49:37,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:49:37,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722966947] [2023-12-15 18:49:37,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722966947] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:49:37,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:49:37,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:49:37,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641455454] [2023-12-15 18:49:37,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:49:37,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 18:49:37,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:49:37,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 18:49:37,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:49:37,777 INFO L87 Difference]: Start difference. First operand 2256 states and 3564 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 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 18:49:41,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:49:41,408 INFO L93 Difference]: Finished difference Result 5299 states and 9212 transitions. [2023-12-15 18:49:41,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 18:49:41,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 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 118 [2023-12-15 18:49:41,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:49:41,422 INFO L225 Difference]: With dead ends: 5299 [2023-12-15 18:49:41,422 INFO L226 Difference]: Without dead ends: 3758 [2023-12-15 18:49:41,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:49:41,425 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 702 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 3108 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 3837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 3108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-15 18:49:41,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 705 Invalid, 3837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 3108 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-15 18:49:41,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2023-12-15 18:49:41,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3758. [2023-12-15 18:49:41,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3758 states, 3757 states have (on average 1.368645195634815) internal successors, (5142), 3757 states have internal predecessors, (5142), 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 18:49:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3758 states to 3758 states and 5142 transitions. [2023-12-15 18:49:41,503 INFO L78 Accepts]: Start accepts. Automaton has 3758 states and 5142 transitions. Word has length 118 [2023-12-15 18:49:41,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:49:41,508 INFO L495 AbstractCegarLoop]: Abstraction has 3758 states and 5142 transitions. [2023-12-15 18:49:41,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 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 18:49:41,513 INFO L276 IsEmpty]: Start isEmpty. Operand 3758 states and 5142 transitions. [2023-12-15 18:49:41,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-15 18:49:41,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:49:41,518 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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 18:49:41,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 18:49:41,518 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:49:41,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:49:41,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1563697079, now seen corresponding path program 1 times [2023-12-15 18:49:41,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:49:41,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565747562] [2023-12-15 18:49:41,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:49:41,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:49:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:49:41,995 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-15 18:49:41,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:49:41,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565747562] [2023-12-15 18:49:41,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565747562] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 18:49:41,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988568286] [2023-12-15 18:49:41,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:49:41,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 18:49:41,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 18:49:42,000 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 18:49:42,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 18:49:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:49:42,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 18:49:42,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 18:49:42,367 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-15 18:49:42,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 18:49:42,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988568286] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:49:42,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 18:49:42,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2023-12-15 18:49:42,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465210282] [2023-12-15 18:49:42,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:49:42,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:49:42,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:49:42,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:49:42,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-15 18:49:42,369 INFO L87 Difference]: Start difference. First operand 3758 states and 5142 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 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 18:49:44,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:49:44,901 INFO L93 Difference]: Finished difference Result 9768 states and 13911 transitions. [2023-12-15 18:49:44,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:49:44,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 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 192 [2023-12-15 18:49:44,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:49:44,925 INFO L225 Difference]: With dead ends: 9768 [2023-12-15 18:49:44,926 INFO L226 Difference]: Without dead ends: 6762 [2023-12-15 18:49:44,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-15 18:49:44,930 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 669 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2214 mSolverCounterSat, 568 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 2782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 568 IncrementalHoareTripleChecker+Valid, 2214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-15 18:49:44,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 400 Invalid, 2782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [568 Valid, 2214 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-15 18:49:44,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6762 states. [2023-12-15 18:49:45,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6762 to 6762. [2023-12-15 18:49:45,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6762 states, 6761 states have (on average 1.2873835231474633) internal successors, (8704), 6761 states have internal predecessors, (8704), 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 18:49:45,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6762 states to 6762 states and 8704 transitions. [2023-12-15 18:49:45,041 INFO L78 Accepts]: Start accepts. Automaton has 6762 states and 8704 transitions. Word has length 192 [2023-12-15 18:49:45,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:49:45,042 INFO L495 AbstractCegarLoop]: Abstraction has 6762 states and 8704 transitions. [2023-12-15 18:49:45,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 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 18:49:45,042 INFO L276 IsEmpty]: Start isEmpty. Operand 6762 states and 8704 transitions. [2023-12-15 18:49:45,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-15 18:49:45,045 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:49:45,045 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-15 18:49:45,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 18:49:45,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 18:49:45,256 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:49:45,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:49:45,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1062952192, now seen corresponding path program 1 times [2023-12-15 18:49:45,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:49:45,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397236340] [2023-12-15 18:49:45,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:49:45,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:49:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:49:45,666 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-12-15 18:49:45,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:49:45,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397236340] [2023-12-15 18:49:45,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397236340] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:49:45,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:49:45,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:49:45,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354209607] [2023-12-15 18:49:45,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:49:45,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 18:49:45,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:49:45,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 18:49:45,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:49:45,669 INFO L87 Difference]: Start difference. First operand 6762 states and 8704 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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 18:49:49,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:49:49,251 INFO L93 Difference]: Finished difference Result 15815 states and 21392 transitions. [2023-12-15 18:49:49,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 18:49:49,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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 259 [2023-12-15 18:49:49,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:49:49,278 INFO L225 Difference]: With dead ends: 15815 [2023-12-15 18:49:49,278 INFO L226 Difference]: Without dead ends: 9768 [2023-12-15 18:49:49,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:49:49,286 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 775 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 3910 mSolverCounterSat, 542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 4452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 3910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-15 18:49:49,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 489 Invalid, 4452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [542 Valid, 3910 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-15 18:49:49,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9768 states. [2023-12-15 18:49:49,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9768 to 9766. [2023-12-15 18:49:49,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9766 states, 9765 states have (on average 1.273015873015873) internal successors, (12431), 9765 states have internal predecessors, (12431), 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 18:49:49,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9766 states to 9766 states and 12431 transitions. [2023-12-15 18:49:49,446 INFO L78 Accepts]: Start accepts. Automaton has 9766 states and 12431 transitions. Word has length 259 [2023-12-15 18:49:49,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:49:49,447 INFO L495 AbstractCegarLoop]: Abstraction has 9766 states and 12431 transitions. [2023-12-15 18:49:49,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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 18:49:49,447 INFO L276 IsEmpty]: Start isEmpty. Operand 9766 states and 12431 transitions. [2023-12-15 18:49:49,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-12-15 18:49:49,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:49:49,451 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:49:49,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 18:49:49,452 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:49:49,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:49:49,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1832839527, now seen corresponding path program 1 times [2023-12-15 18:49:49,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:49:49,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319020413] [2023-12-15 18:49:49,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:49:49,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:49:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:49:49,761 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-15 18:49:49,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:49:49,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319020413] [2023-12-15 18:49:49,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319020413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:49:49,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:49:49,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:49:49,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167806443] [2023-12-15 18:49:49,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:49:49,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:49:49,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:49:49,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:49:49,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:49:49,765 INFO L87 Difference]: Start difference. First operand 9766 states and 12431 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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 18:49:52,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:49:52,597 INFO L93 Difference]: Finished difference Result 23286 states and 30483 transitions. [2023-12-15 18:49:52,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:49:52,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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 277 [2023-12-15 18:49:52,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:49:52,630 INFO L225 Difference]: With dead ends: 23286 [2023-12-15 18:49:52,630 INFO L226 Difference]: Without dead ends: 14272 [2023-12-15 18:49:52,642 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 18:49:52,643 INFO L413 NwaCegarLoop]: 1384 mSDtfsCounter, 709 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2197 mSolverCounterSat, 678 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 2875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 678 IncrementalHoareTripleChecker+Valid, 2197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-15 18:49:52,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 1391 Invalid, 2875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [678 Valid, 2197 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-15 18:49:52,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14272 states. [2023-12-15 18:49:52,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14272 to 14272. [2023-12-15 18:49:52,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14272 states, 14271 states have (on average 1.23453156751454) internal successors, (17618), 14271 states have internal predecessors, (17618), 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 18:49:52,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14272 states to 14272 states and 17618 transitions. [2023-12-15 18:49:52,854 INFO L78 Accepts]: Start accepts. Automaton has 14272 states and 17618 transitions. Word has length 277 [2023-12-15 18:49:52,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:49:52,854 INFO L495 AbstractCegarLoop]: Abstraction has 14272 states and 17618 transitions. [2023-12-15 18:49:52,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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 18:49:52,855 INFO L276 IsEmpty]: Start isEmpty. Operand 14272 states and 17618 transitions. [2023-12-15 18:49:52,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2023-12-15 18:49:52,859 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:49:52,859 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:49:52,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 18:49:52,860 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:49:52,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:49:52,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1295770942, now seen corresponding path program 1 times [2023-12-15 18:49:52,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:49:52,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235986307] [2023-12-15 18:49:52,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:49:52,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:49:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:49:53,088 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-12-15 18:49:53,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:49:53,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235986307] [2023-12-15 18:49:53,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235986307] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:49:53,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:49:53,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 18:49:53,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192764375] [2023-12-15 18:49:53,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:49:53,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:49:53,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:49:53,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:49:53,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:49:53,092 INFO L87 Difference]: Start difference. First operand 14272 states and 17618 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 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 18:49:55,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:49:55,914 INFO L93 Difference]: Finished difference Result 39057 states and 48926 transitions. [2023-12-15 18:49:55,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:49:55,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 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 310 [2023-12-15 18:49:55,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:49:55,963 INFO L225 Difference]: With dead ends: 39057 [2023-12-15 18:49:55,964 INFO L226 Difference]: Without dead ends: 25537 [2023-12-15 18:49:55,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 18:49:55,984 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 620 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2022 mSolverCounterSat, 794 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 2816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 794 IncrementalHoareTripleChecker+Valid, 2022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-15 18:49:55,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 595 Invalid, 2816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [794 Valid, 2022 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-15 18:49:56,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25537 states. [2023-12-15 18:49:56,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25537 to 23284. [2023-12-15 18:49:56,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23284 states, 23283 states have (on average 1.1806897736545978) internal successors, (27490), 23283 states have internal predecessors, (27490), 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 18:49:56,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23284 states to 23284 states and 27490 transitions. [2023-12-15 18:49:56,280 INFO L78 Accepts]: Start accepts. Automaton has 23284 states and 27490 transitions. Word has length 310 [2023-12-15 18:49:56,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:49:56,281 INFO L495 AbstractCegarLoop]: Abstraction has 23284 states and 27490 transitions. [2023-12-15 18:49:56,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 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 18:49:56,281 INFO L276 IsEmpty]: Start isEmpty. Operand 23284 states and 27490 transitions. [2023-12-15 18:49:56,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2023-12-15 18:49:56,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:49:56,289 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-15 18:49:56,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 18:49:56,290 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:49:56,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:49:56,290 INFO L85 PathProgramCache]: Analyzing trace with hash 781168151, now seen corresponding path program 1 times [2023-12-15 18:49:56,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:49:56,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618682039] [2023-12-15 18:49:56,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:49:56,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:49:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:49:57,306 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 337 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-15 18:49:57,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:49:57,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618682039] [2023-12-15 18:49:57,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618682039] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:49:57,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:49:57,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:49:57,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950753700] [2023-12-15 18:49:57,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:49:57,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:49:57,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:49:57,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:49:57,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:49:57,309 INFO L87 Difference]: Start difference. First operand 23284 states and 27490 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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 18:50:00,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:50:00,360 INFO L93 Difference]: Finished difference Result 57081 states and 68683 transitions. [2023-12-15 18:50:00,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:50:00,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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 389 [2023-12-15 18:50:00,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:50:00,412 INFO L225 Difference]: With dead ends: 57081 [2023-12-15 18:50:00,412 INFO L226 Difference]: Without dead ends: 34549 [2023-12-15 18:50:00,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 18:50:00,434 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 772 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2030 mSolverCounterSat, 1074 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 3104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1074 IncrementalHoareTripleChecker+Valid, 2030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-15 18:50:00,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 137 Invalid, 3104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1074 Valid, 2030 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-15 18:50:00,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34549 states. [2023-12-15 18:50:00,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34549 to 32296. [2023-12-15 18:50:00,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32296 states, 32295 states have (on average 1.2027558445579811) internal successors, (38843), 32295 states have internal predecessors, (38843), 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 18:50:00,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32296 states to 32296 states and 38843 transitions. [2023-12-15 18:50:00,852 INFO L78 Accepts]: Start accepts. Automaton has 32296 states and 38843 transitions. Word has length 389 [2023-12-15 18:50:00,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:50:00,853 INFO L495 AbstractCegarLoop]: Abstraction has 32296 states and 38843 transitions. [2023-12-15 18:50:00,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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 18:50:00,853 INFO L276 IsEmpty]: Start isEmpty. Operand 32296 states and 38843 transitions. [2023-12-15 18:50:00,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2023-12-15 18:50:00,861 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:50:00,861 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-15 18:50:00,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 18:50:00,861 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:50:00,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:50:00,862 INFO L85 PathProgramCache]: Analyzing trace with hash 280665235, now seen corresponding path program 1 times [2023-12-15 18:50:00,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:50:00,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253532589] [2023-12-15 18:50:00,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:50:00,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:50:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:50:01,093 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 478 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-15 18:50:01,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:50:01,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253532589] [2023-12-15 18:50:01,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253532589] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:50:01,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:50:01,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:50:01,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617165707] [2023-12-15 18:50:01,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:50:01,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:50:01,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:50:01,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:50:01,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:50:01,095 INFO L87 Difference]: Start difference. First operand 32296 states and 38843 transitions. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 18:50:04,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:50:04,284 INFO L93 Difference]: Finished difference Result 79611 states and 95768 transitions. [2023-12-15 18:50:04,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:50:04,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 406 [2023-12-15 18:50:04,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:50:04,368 INFO L225 Difference]: With dead ends: 79611 [2023-12-15 18:50:04,374 INFO L226 Difference]: Without dead ends: 48067 [2023-12-15 18:50:04,403 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 18:50:04,404 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 733 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 3027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 772 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-15 18:50:04,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 171 Invalid, 3027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [772 Valid, 2255 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-15 18:50:04,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48067 states. [2023-12-15 18:50:04,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48067 to 45063. [2023-12-15 18:50:04,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45063 states, 45062 states have (on average 1.1978163419288979) internal successors, (53976), 45062 states have internal predecessors, (53976), 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 18:50:04,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45063 states to 45063 states and 53976 transitions. [2023-12-15 18:50:04,971 INFO L78 Accepts]: Start accepts. Automaton has 45063 states and 53976 transitions. Word has length 406 [2023-12-15 18:50:04,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:50:04,971 INFO L495 AbstractCegarLoop]: Abstraction has 45063 states and 53976 transitions. [2023-12-15 18:50:04,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 18:50:04,972 INFO L276 IsEmpty]: Start isEmpty. Operand 45063 states and 53976 transitions. [2023-12-15 18:50:04,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2023-12-15 18:50:04,982 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:50:04,982 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-15 18:50:04,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 18:50:04,983 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:50:04,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:50:04,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1053707397, now seen corresponding path program 1 times [2023-12-15 18:50:04,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:50:04,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384766671] [2023-12-15 18:50:04,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:50:04,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:50:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:50:05,436 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 478 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-15 18:50:05,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:50:05,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384766671] [2023-12-15 18:50:05,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384766671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:50:05,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:50:05,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:50:05,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969902312] [2023-12-15 18:50:05,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:50:05,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:50:05,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:50:05,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:50:05,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:50:05,438 INFO L87 Difference]: Start difference. First operand 45063 states and 53976 transitions. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 18:50:08,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:50:08,032 INFO L93 Difference]: Finished difference Result 90876 states and 108729 transitions. [2023-12-15 18:50:08,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:50:08,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 426 [2023-12-15 18:50:08,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:50:08,102 INFO L225 Difference]: With dead ends: 90876 [2023-12-15 18:50:08,102 INFO L226 Difference]: Without dead ends: 46565 [2023-12-15 18:50:08,128 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 18:50:08,129 INFO L413 NwaCegarLoop]: 996 mSDtfsCounter, 829 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2081 mSolverCounterSat, 541 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 2622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 541 IncrementalHoareTripleChecker+Valid, 2081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-15 18:50:08,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 1002 Invalid, 2622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [541 Valid, 2081 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-15 18:50:08,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46565 states. [2023-12-15 18:50:08,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46565 to 44312. [2023-12-15 18:50:08,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44312 states, 44311 states have (on average 1.1580194534088601) internal successors, (51313), 44311 states have internal predecessors, (51313), 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 18:50:08,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44312 states to 44312 states and 51313 transitions. [2023-12-15 18:50:08,648 INFO L78 Accepts]: Start accepts. Automaton has 44312 states and 51313 transitions. Word has length 426 [2023-12-15 18:50:08,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:50:08,649 INFO L495 AbstractCegarLoop]: Abstraction has 44312 states and 51313 transitions. [2023-12-15 18:50:08,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 18:50:08,649 INFO L276 IsEmpty]: Start isEmpty. Operand 44312 states and 51313 transitions. [2023-12-15 18:50:08,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2023-12-15 18:50:08,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:50:08,661 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-15 18:50:08,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 18:50:08,661 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:50:08,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:50:08,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1033635561, now seen corresponding path program 1 times [2023-12-15 18:50:08,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:50:08,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591389631] [2023-12-15 18:50:08,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:50:08,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:50:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:50:09,230 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 473 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-12-15 18:50:09,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:50:09,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591389631] [2023-12-15 18:50:09,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591389631] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:50:09,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:50:09,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:50:09,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933835712] [2023-12-15 18:50:09,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:50:09,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:50:09,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:50:09,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:50:09,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:50:09,233 INFO L87 Difference]: Start difference. First operand 44312 states and 51313 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 18:50:12,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:50:12,160 INFO L93 Difference]: Finished difference Result 91627 states and 105845 transitions. [2023-12-15 18:50:12,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:50:12,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 439 [2023-12-15 18:50:12,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:50:12,212 INFO L225 Difference]: With dead ends: 91627 [2023-12-15 18:50:12,213 INFO L226 Difference]: Without dead ends: 48067 [2023-12-15 18:50:12,231 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 18:50:12,232 INFO L413 NwaCegarLoop]: 1255 mSDtfsCounter, 649 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2626 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 2924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 2626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-15 18:50:12,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 1262 Invalid, 2924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 2626 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-15 18:50:12,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48067 states. [2023-12-15 18:50:12,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48067 to 46565. [2023-12-15 18:50:12,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46565 states, 46564 states have (on average 1.14371617558629) internal successors, (53256), 46564 states have internal predecessors, (53256), 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 18:50:12,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46565 states to 46565 states and 53256 transitions. [2023-12-15 18:50:12,743 INFO L78 Accepts]: Start accepts. Automaton has 46565 states and 53256 transitions. Word has length 439 [2023-12-15 18:50:12,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:50:12,743 INFO L495 AbstractCegarLoop]: Abstraction has 46565 states and 53256 transitions. [2023-12-15 18:50:12,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 18:50:12,744 INFO L276 IsEmpty]: Start isEmpty. Operand 46565 states and 53256 transitions. [2023-12-15 18:50:12,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2023-12-15 18:50:12,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:50:12,753 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-15 18:50:12,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 18:50:12,753 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:50:12,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:50:12,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1990278431, now seen corresponding path program 1 times [2023-12-15 18:50:12,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:50:12,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846574339] [2023-12-15 18:50:12,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:50:12,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:50:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:50:13,531 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-15 18:50:13,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:50:13,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846574339] [2023-12-15 18:50:13,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846574339] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:50:13,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:50:13,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:50:13,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123932374] [2023-12-15 18:50:13,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:50:13,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:50:13,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:50:13,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:50:13,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:50:13,533 INFO L87 Difference]: Start difference. First operand 46565 states and 53256 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 18:50:16,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:50:16,208 INFO L93 Difference]: Finished difference Result 102892 states and 117133 transitions. [2023-12-15 18:50:16,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:50:16,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 443 [2023-12-15 18:50:16,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:50:16,276 INFO L225 Difference]: With dead ends: 102892 [2023-12-15 18:50:16,276 INFO L226 Difference]: Without dead ends: 57079 [2023-12-15 18:50:16,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 18:50:16,306 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 803 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2130 mSolverCounterSat, 584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 2714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 584 IncrementalHoareTripleChecker+Valid, 2130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-15 18:50:16,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 895 Invalid, 2714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [584 Valid, 2130 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-15 18:50:16,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57079 states. [2023-12-15 18:50:16,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57079 to 51822. [2023-12-15 18:50:16,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51822 states, 51821 states have (on average 1.118407595376392) internal successors, (57957), 51821 states have internal predecessors, (57957), 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 18:50:16,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51822 states to 51822 states and 57957 transitions. [2023-12-15 18:50:16,945 INFO L78 Accepts]: Start accepts. Automaton has 51822 states and 57957 transitions. Word has length 443 [2023-12-15 18:50:16,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:50:16,946 INFO L495 AbstractCegarLoop]: Abstraction has 51822 states and 57957 transitions. [2023-12-15 18:50:16,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 18:50:16,946 INFO L276 IsEmpty]: Start isEmpty. Operand 51822 states and 57957 transitions. [2023-12-15 18:50:16,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2023-12-15 18:50:16,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:50:16,955 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:50:16,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 18:50:16,955 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:50:16,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:50:16,956 INFO L85 PathProgramCache]: Analyzing trace with hash 284926905, now seen corresponding path program 1 times [2023-12-15 18:50:16,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:50:16,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730046572] [2023-12-15 18:50:16,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:50:16,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:50:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:50:17,596 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 463 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2023-12-15 18:50:17,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:50:17,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730046572] [2023-12-15 18:50:17,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730046572] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:50:17,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:50:17,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:50:17,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046966351] [2023-12-15 18:50:17,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:50:17,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:50:17,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:50:17,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:50:17,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:50:17,598 INFO L87 Difference]: Start difference. First operand 51822 states and 57957 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 18:50:18,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:50:18,017 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 18:50:18,018 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 44 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 18:50:18,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 271 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 18:50:18,019 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 18:50:18,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 18:50:18,021 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (51822states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (695 states constructed, input type IntersectNwa). [2023-12-15 18:50:18,033 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:50:18,035 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 18:50:18,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 06:50:18 BoogieIcfgContainer [2023-12-15 18:50:18,039 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 18:50:18,039 INFO L158 Benchmark]: Toolchain (without parser) took 53892.31ms. Allocated memory was 180.4MB in the beginning and 3.0GB in the end (delta: 2.9GB). Free memory was 107.6MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 960.7MB. Max. memory is 8.0GB. [2023-12-15 18:50:18,039 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 180.4MB. Free memory is still 133.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 18:50:18,040 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1508.35ms. Allocated memory was 180.4MB in the beginning and 234.9MB in the end (delta: 54.5MB). Free memory was 107.3MB in the beginning and 138.1MB in the end (delta: -30.8MB). Peak memory consumption was 71.7MB. Max. memory is 8.0GB. [2023-12-15 18:50:18,040 INFO L158 Benchmark]: Boogie Procedure Inliner took 335.05ms. Allocated memory is still 234.9MB. Free memory was 138.1MB in the beginning and 127.7MB in the end (delta: 10.3MB). Peak memory consumption was 80.6MB. Max. memory is 8.0GB. [2023-12-15 18:50:18,041 INFO L158 Benchmark]: Boogie Preprocessor took 588.80ms. Allocated memory was 234.9MB in the beginning and 469.8MB in the end (delta: 234.9MB). Free memory was 127.7MB in the beginning and 337.1MB in the end (delta: -209.4MB). Peak memory consumption was 86.8MB. Max. memory is 8.0GB. [2023-12-15 18:50:18,042 INFO L158 Benchmark]: RCFGBuilder took 3888.92ms. Allocated memory was 469.8MB in the beginning and 634.4MB in the end (delta: 164.6MB). Free memory was 337.1MB in the beginning and 305.4MB in the end (delta: 31.7MB). Peak memory consumption was 196.8MB. Max. memory is 8.0GB. [2023-12-15 18:50:18,042 INFO L158 Benchmark]: TraceAbstraction took 47561.83ms. Allocated memory was 634.4MB in the beginning and 3.0GB in the end (delta: 2.4GB). Free memory was 304.9MB in the beginning and 2.2GB in the end (delta: -1.9GB). Peak memory consumption was 703.1MB. Max. memory is 8.0GB. [2023-12-15 18:50:18,043 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62ms. Allocated memory is still 180.4MB. Free memory is still 133.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1508.35ms. Allocated memory was 180.4MB in the beginning and 234.9MB in the end (delta: 54.5MB). Free memory was 107.3MB in the beginning and 138.1MB in the end (delta: -30.8MB). Peak memory consumption was 71.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 335.05ms. Allocated memory is still 234.9MB. Free memory was 138.1MB in the beginning and 127.7MB in the end (delta: 10.3MB). Peak memory consumption was 80.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 588.80ms. Allocated memory was 234.9MB in the beginning and 469.8MB in the end (delta: 234.9MB). Free memory was 127.7MB in the beginning and 337.1MB in the end (delta: -209.4MB). Peak memory consumption was 86.8MB. Max. memory is 8.0GB. * RCFGBuilder took 3888.92ms. Allocated memory was 469.8MB in the beginning and 634.4MB in the end (delta: 164.6MB). Free memory was 337.1MB in the beginning and 305.4MB in the end (delta: 31.7MB). Peak memory consumption was 196.8MB. Max. memory is 8.0GB. * TraceAbstraction took 47561.83ms. Allocated memory was 634.4MB in the beginning and 3.0GB in the end (delta: 2.4GB). Free memory was 304.9MB in the beginning and 2.2GB in the end (delta: -1.9GB). Peak memory consumption was 703.1MB. 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: 166]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 166). Cancelled while NwaCegarLoop was constructing difference of abstraction (51822states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (695 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 756 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 47.5s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 37.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9508 SdHoareTripleChecker+Valid, 33.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9508 mSDsluCounter, 9465 SdHoareTripleChecker+Invalid, 27.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 7686 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30474 IncrementalHoareTripleChecker+Invalid, 38160 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7686 mSolverCounterUnsat, 9366 mSDtfsCounter, 30474 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51822occurred in iteration=12, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 16524 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 3991 NumberOfCodeBlocks, 3991 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3977 ConstructedInterpolants, 0 QuantifiedInterpolants, 9717 SizeOfPredicates, 0 NumberOfNonLiveVariables, 271 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 14 InterpolantComputations, 13 PerfectInterpolantSequences, 4217/4224 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 [2023-12-15 18:50:18,058 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2023-12-15 18:50:18,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 !ENTRY org.eclipse.osgi 4 0 2023-12-15 18:50:18.295 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cc51839a/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:190) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cc51839a/.metadata/.log.