/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label48.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 16:41:54,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 16:41:54,936 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 16:41:54,940 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 16:41:54,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 16:41:54,958 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 16:41:54,959 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 16:41:54,959 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 16:41:54,959 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 16:41:54,960 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 16:41:54,960 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 16:41:54,960 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 16:41:54,961 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 16:41:54,961 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 16:41:54,962 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 16:41:54,962 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 16:41:54,962 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 16:41:54,963 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 16:41:54,963 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 16:41:54,963 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 16:41:54,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 16:41:54,964 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 16:41:54,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 16:41:54,965 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 16:41:54,965 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 16:41:54,965 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 16:41:54,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 16:41:54,966 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 16:41:54,966 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 16:41:54,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 16:41:54,967 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 16:41:54,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 16:41:54,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 16:41:54,967 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 16:41:54,968 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 16:41:54,968 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 16:41:54,968 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 16:41:54,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 16:41:54,969 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 16:41:54,969 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 16:41:54,969 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 16:41:54,970 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 16:41:54,970 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 16:41:54,970 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 16:41:55,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 16:41:55,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 16:41:55,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 16:41:55,205 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 16:41:55,205 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 16:41:55,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label48.c [2023-12-20 16:41:56,387 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 16:41:56,669 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 16:41:56,670 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label48.c [2023-12-20 16:41:56,701 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1514e679a/a8f67fb51ada42649af50a5ac5a9e727/FLAG20b819606 [2023-12-20 16:41:56,718 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1514e679a/a8f67fb51ada42649af50a5ac5a9e727 [2023-12-20 16:41:56,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 16:41:56,724 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 16:41:56,727 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 16:41:56,727 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 16:41:56,732 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 16:41:56,733 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 04:41:56" (1/1) ... [2023-12-20 16:41:56,734 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6206ce60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:41:56, skipping insertion in model container [2023-12-20 16:41:56,734 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 04:41:56" (1/1) ... [2023-12-20 16:41:56,808 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 16:41:56,981 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/Problem11_label48.c[7294,7307] [2023-12-20 16:41:57,176 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 16:41:57,185 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 16:41:57,210 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/Problem11_label48.c[7294,7307] [2023-12-20 16:41:57,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 16:41:57,343 INFO L206 MainTranslator]: Completed translation [2023-12-20 16:41:57,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:41:57 WrapperNode [2023-12-20 16:41:57,343 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 16:41:57,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 16:41:57,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 16:41:57,344 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 16:41:57,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:41:57" (1/1) ... [2023-12-20 16:41:57,391 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:41:57" (1/1) ... [2023-12-20 16:41:57,474 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1000 [2023-12-20 16:41:57,476 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 16:41:57,476 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 16:41:57,476 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 16:41:57,476 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 16:41:57,486 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:41:57" (1/1) ... [2023-12-20 16:41:57,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:41:57" (1/1) ... [2023-12-20 16:41:57,508 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:41:57" (1/1) ... [2023-12-20 16:41:57,567 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]. [2023-12-20 16:41:57,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:41:57" (1/1) ... [2023-12-20 16:41:57,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:41:57" (1/1) ... [2023-12-20 16:41:57,621 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:41:57" (1/1) ... [2023-12-20 16:41:57,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:41:57" (1/1) ... [2023-12-20 16:41:57,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:41:57" (1/1) ... [2023-12-20 16:41:57,668 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:41:57" (1/1) ... [2023-12-20 16:41:57,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 16:41:57,686 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 16:41:57,686 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 16:41:57,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 16:41:57,687 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:41:57" (1/1) ... [2023-12-20 16:41:57,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 16:41:57,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 16:41:57,717 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) [2023-12-20 16:41:57,746 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 [2023-12-20 16:41:57,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 16:41:57,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 16:41:57,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 16:41:57,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 16:41:57,819 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 16:41:57,822 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 16:41:59,313 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 16:41:59,371 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 16:41:59,372 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 16:41:59,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 04:41:59 BoogieIcfgContainer [2023-12-20 16:41:59,372 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 16:41:59,376 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 16:41:59,376 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 16:41:59,379 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 16:41:59,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 04:41:56" (1/3) ... [2023-12-20 16:41:59,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbb6899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 04:41:59, skipping insertion in model container [2023-12-20 16:41:59,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:41:57" (2/3) ... [2023-12-20 16:41:59,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbb6899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 04:41:59, skipping insertion in model container [2023-12-20 16:41:59,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 04:41:59" (3/3) ... [2023-12-20 16:41:59,384 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label48.c [2023-12-20 16:41:59,399 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 16:41:59,400 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 16:41:59,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 16:41:59,471 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;@19faeb4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 16:41:59,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 16:41:59,476 INFO L276 IsEmpty]: Start isEmpty. Operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:41:59,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-20 16:41:59,484 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:41:59,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:41:59,486 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:41:59,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:41:59,492 INFO L85 PathProgramCache]: Analyzing trace with hash 253910260, now seen corresponding path program 1 times [2023-12-20 16:41:59,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:41:59,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663749653] [2023-12-20 16:41:59,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:41:59,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:41:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:41:59,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:41:59,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:41:59,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663749653] [2023-12-20 16:41:59,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663749653] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:41:59,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:41:59,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 16:41:59,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50483813] [2023-12-20 16:41:59,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:41:59,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 16:41:59,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:41:59,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 16:41:59,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 16:41:59,734 INFO L87 Difference]: Start difference. First operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 0 states have call successors, (0), 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 24.5) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:41:59,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:41:59,784 INFO L93 Difference]: Finished difference Result 441 states and 839 transitions. [2023-12-20 16:41:59,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 16:41:59,786 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2023-12-20 16:41:59,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:41:59,794 INFO L225 Difference]: With dead ends: 441 [2023-12-20 16:41:59,794 INFO L226 Difference]: Without dead ends: 219 [2023-12-20 16:41:59,797 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 [2023-12-20 16:41:59,800 INFO L413 NwaCegarLoop]: 355 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, 355 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 [2023-12-20 16:41:59,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 16:41:59,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-20 16:41:59,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-12-20 16:41:59,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.628440366972477) internal successors, (355), 218 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:41:59,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 355 transitions. [2023-12-20 16:41:59,842 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 355 transitions. Word has length 49 [2023-12-20 16:41:59,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:41:59,843 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 355 transitions. [2023-12-20 16:41:59,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:41:59,843 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 355 transitions. [2023-12-20 16:41:59,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-20 16:41:59,844 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:41:59,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:41:59,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 16:41:59,845 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:41:59,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:41:59,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1745058819, now seen corresponding path program 1 times [2023-12-20 16:41:59,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:41:59,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496156420] [2023-12-20 16:41:59,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:41:59,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:41:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:00,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:42:00,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:00,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496156420] [2023-12-20 16:42:00,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496156420] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:00,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:42:00,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 16:42:00,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322088387] [2023-12-20 16:42:00,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:00,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:42:00,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:00,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:42:00,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:42:00,073 INFO L87 Difference]: Start difference. First operand 219 states and 355 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:00,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:00,995 INFO L93 Difference]: Finished difference Result 639 states and 1042 transitions. [2023-12-20 16:42:00,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:42:00,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2023-12-20 16:42:00,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:00,999 INFO L225 Difference]: With dead ends: 639 [2023-12-20 16:42:01,000 INFO L226 Difference]: Without dead ends: 421 [2023-12-20 16:42:01,001 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 [2023-12-20 16:42:01,006 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 162 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:01,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 120 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 16:42:01,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2023-12-20 16:42:01,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 411. [2023-12-20 16:42:01,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 410 states have (on average 1.524390243902439) internal successors, (625), 410 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:01,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 625 transitions. [2023-12-20 16:42:01,042 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 625 transitions. Word has length 49 [2023-12-20 16:42:01,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:01,043 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 625 transitions. [2023-12-20 16:42:01,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:01,043 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 625 transitions. [2023-12-20 16:42:01,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-20 16:42:01,046 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:01,047 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, 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] [2023-12-20 16:42:01,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 16:42:01,047 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:01,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:01,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1944692346, now seen corresponding path program 1 times [2023-12-20 16:42:01,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:01,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285990486] [2023-12-20 16:42:01,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:01,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:01,221 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:42:01,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:01,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285990486] [2023-12-20 16:42:01,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285990486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:01,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:42:01,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 16:42:01,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046589279] [2023-12-20 16:42:01,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:01,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:42:01,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:01,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:42:01,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:42:01,225 INFO L87 Difference]: Start difference. First operand 411 states and 625 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:01,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:01,934 INFO L93 Difference]: Finished difference Result 1193 states and 1820 transitions. [2023-12-20 16:42:01,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:42:01,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-20 16:42:01,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:01,939 INFO L225 Difference]: With dead ends: 1193 [2023-12-20 16:42:01,939 INFO L226 Difference]: Without dead ends: 783 [2023-12-20 16:42:01,946 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 [2023-12-20 16:42:01,948 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 175 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:01,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 152 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 16:42:01,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2023-12-20 16:42:01,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 783. [2023-12-20 16:42:01,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 782 states have (on average 1.3746803069053708) internal successors, (1075), 782 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:01,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1075 transitions. [2023-12-20 16:42:01,971 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1075 transitions. Word has length 115 [2023-12-20 16:42:01,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:01,971 INFO L495 AbstractCegarLoop]: Abstraction has 783 states and 1075 transitions. [2023-12-20 16:42:01,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:01,972 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1075 transitions. [2023-12-20 16:42:01,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-20 16:42:01,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:01,975 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, 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] [2023-12-20 16:42:01,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 16:42:01,976 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:01,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:01,976 INFO L85 PathProgramCache]: Analyzing trace with hash -979247440, now seen corresponding path program 1 times [2023-12-20 16:42:01,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:01,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774501961] [2023-12-20 16:42:01,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:01,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:02,288 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:42:02,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:02,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774501961] [2023-12-20 16:42:02,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774501961] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:02,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:42:02,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 16:42:02,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664184051] [2023-12-20 16:42:02,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:02,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:42:02,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:02,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:42:02,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:42:02,291 INFO L87 Difference]: Start difference. First operand 783 states and 1075 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:02,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:02,934 INFO L93 Difference]: Finished difference Result 1935 states and 2598 transitions. [2023-12-20 16:42:02,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:42:02,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2023-12-20 16:42:02,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:02,939 INFO L225 Difference]: With dead ends: 1935 [2023-12-20 16:42:02,939 INFO L226 Difference]: Without dead ends: 1153 [2023-12-20 16:42:02,941 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 [2023-12-20 16:42:02,941 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:02,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 188 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 16:42:02,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2023-12-20 16:42:02,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1152. [2023-12-20 16:42:02,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 1151 states have (on average 1.2701998262380538) internal successors, (1462), 1151 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:02,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1462 transitions. [2023-12-20 16:42:02,962 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1462 transitions. Word has length 119 [2023-12-20 16:42:02,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:02,962 INFO L495 AbstractCegarLoop]: Abstraction has 1152 states and 1462 transitions. [2023-12-20 16:42:02,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:02,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1462 transitions. [2023-12-20 16:42:02,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-20 16:42:02,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:02,966 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, 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] [2023-12-20 16:42:02,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 16:42:02,967 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:02,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:02,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1260874201, now seen corresponding path program 1 times [2023-12-20 16:42:02,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:02,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692357779] [2023-12-20 16:42:02,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:02,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:03,147 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:42:03,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:03,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692357779] [2023-12-20 16:42:03,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692357779] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:03,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:42:03,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:42:03,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324747327] [2023-12-20 16:42:03,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:03,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:42:03,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:03,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:42:03,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:42:03,151 INFO L87 Difference]: Start difference. First operand 1152 states and 1462 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:03,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:03,849 INFO L93 Difference]: Finished difference Result 2678 states and 3480 transitions. [2023-12-20 16:42:03,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:42:03,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2023-12-20 16:42:03,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:03,856 INFO L225 Difference]: With dead ends: 2678 [2023-12-20 16:42:03,856 INFO L226 Difference]: Without dead ends: 1711 [2023-12-20 16:42:03,858 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 [2023-12-20 16:42:03,859 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 156 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:03,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 329 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 16:42:03,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2023-12-20 16:42:03,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1520. [2023-12-20 16:42:03,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1519 states have (on average 1.2560895325872283) internal successors, (1908), 1519 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:03,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 1908 transitions. [2023-12-20 16:42:03,887 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 1908 transitions. Word has length 161 [2023-12-20 16:42:03,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:03,887 INFO L495 AbstractCegarLoop]: Abstraction has 1520 states and 1908 transitions. [2023-12-20 16:42:03,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:03,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 1908 transitions. [2023-12-20 16:42:03,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-20 16:42:03,891 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:03,891 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:03,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 16:42:03,891 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:03,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:03,892 INFO L85 PathProgramCache]: Analyzing trace with hash -231534708, now seen corresponding path program 1 times [2023-12-20 16:42:03,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:03,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750803093] [2023-12-20 16:42:03,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:03,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:04,120 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-12-20 16:42:04,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:04,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750803093] [2023-12-20 16:42:04,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750803093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:04,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:42:04,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:42:04,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848520343] [2023-12-20 16:42:04,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:04,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:42:04,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:04,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:42:04,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:42:04,123 INFO L87 Difference]: Start difference. First operand 1520 states and 1908 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:04,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:04,889 INFO L93 Difference]: Finished difference Result 3596 states and 4558 transitions. [2023-12-20 16:42:04,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:42:04,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 231 [2023-12-20 16:42:04,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:04,900 INFO L225 Difference]: With dead ends: 3596 [2023-12-20 16:42:04,900 INFO L226 Difference]: Without dead ends: 2077 [2023-12-20 16:42:04,902 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 [2023-12-20 16:42:04,903 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 147 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:04,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 388 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 16:42:04,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2077 states. [2023-12-20 16:42:04,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2077 to 1888. [2023-12-20 16:42:04,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1888 states, 1887 states have (on average 1.2474827768945416) internal successors, (2354), 1887 states have internal predecessors, (2354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:04,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1888 states to 1888 states and 2354 transitions. [2023-12-20 16:42:04,936 INFO L78 Accepts]: Start accepts. Automaton has 1888 states and 2354 transitions. Word has length 231 [2023-12-20 16:42:04,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:04,937 INFO L495 AbstractCegarLoop]: Abstraction has 1888 states and 2354 transitions. [2023-12-20 16:42:04,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:04,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1888 states and 2354 transitions. [2023-12-20 16:42:04,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-12-20 16:42:04,940 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:04,941 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:04,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 16:42:04,941 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:04,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:04,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1392702161, now seen corresponding path program 1 times [2023-12-20 16:42:04,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:04,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651653590] [2023-12-20 16:42:04,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:04,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:05,253 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:42:05,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:05,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651653590] [2023-12-20 16:42:05,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651653590] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:05,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:42:05,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:42:05,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888018607] [2023-12-20 16:42:05,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:05,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:42:05,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:05,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:42:05,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:42:05,256 INFO L87 Difference]: Start difference. First operand 1888 states and 2354 transitions. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:06,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:06,000 INFO L93 Difference]: Finished difference Result 5076 states and 6326 transitions. [2023-12-20 16:42:06,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:42:06,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 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 258 [2023-12-20 16:42:06,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:06,018 INFO L225 Difference]: With dead ends: 5076 [2023-12-20 16:42:06,018 INFO L226 Difference]: Without dead ends: 3189 [2023-12-20 16:42:06,022 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 [2023-12-20 16:42:06,024 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 122 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:06,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 139 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 16:42:06,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3189 states. [2023-12-20 16:42:06,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3189 to 3185. [2023-12-20 16:42:06,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3185 states, 3184 states have (on average 1.2160804020100502) internal successors, (3872), 3184 states have internal predecessors, (3872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:06,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3185 states to 3185 states and 3872 transitions. [2023-12-20 16:42:06,100 INFO L78 Accepts]: Start accepts. Automaton has 3185 states and 3872 transitions. Word has length 258 [2023-12-20 16:42:06,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:06,101 INFO L495 AbstractCegarLoop]: Abstraction has 3185 states and 3872 transitions. [2023-12-20 16:42:06,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:06,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3185 states and 3872 transitions. [2023-12-20 16:42:06,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-12-20 16:42:06,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:06,105 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:06,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 16:42:06,105 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:06,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:06,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1883923314, now seen corresponding path program 1 times [2023-12-20 16:42:06,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:06,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731074437] [2023-12-20 16:42:06,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:06,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:06,555 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-12-20 16:42:06,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:06,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731074437] [2023-12-20 16:42:06,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731074437] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:06,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:42:06,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:42:06,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136026762] [2023-12-20 16:42:06,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:06,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:42:06,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:06,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:42:06,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:42:06,558 INFO L87 Difference]: Start difference. First operand 3185 states and 3872 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:07,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:07,227 INFO L93 Difference]: Finished difference Result 8219 states and 9833 transitions. [2023-12-20 16:42:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:42:07,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 264 [2023-12-20 16:42:07,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:07,243 INFO L225 Difference]: With dead ends: 8219 [2023-12-20 16:42:07,243 INFO L226 Difference]: Without dead ends: 5035 [2023-12-20 16:42:07,247 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 [2023-12-20 16:42:07,247 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 171 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:07,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 389 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 16:42:07,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5035 states. [2023-12-20 16:42:07,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5035 to 5034. [2023-12-20 16:42:07,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5034 states, 5033 states have (on average 1.1835883171070931) internal successors, (5957), 5033 states have internal predecessors, (5957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:07,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5034 states to 5034 states and 5957 transitions. [2023-12-20 16:42:07,358 INFO L78 Accepts]: Start accepts. Automaton has 5034 states and 5957 transitions. Word has length 264 [2023-12-20 16:42:07,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:07,359 INFO L495 AbstractCegarLoop]: Abstraction has 5034 states and 5957 transitions. [2023-12-20 16:42:07,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:07,359 INFO L276 IsEmpty]: Start isEmpty. Operand 5034 states and 5957 transitions. [2023-12-20 16:42:07,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-12-20 16:42:07,364 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:07,364 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:07,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 16:42:07,364 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:07,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:07,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1532740267, now seen corresponding path program 1 times [2023-12-20 16:42:07,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:07,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79656821] [2023-12-20 16:42:07,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:07,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:08,289 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 137 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:42:08,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:08,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79656821] [2023-12-20 16:42:08,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79656821] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 16:42:08,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138550005] [2023-12-20 16:42:08,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:08,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:42:08,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 16:42:08,296 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) [2023-12-20 16:42:08,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 16:42:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:08,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 16:42:08,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 16:42:08,836 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-20 16:42:08,836 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 16:42:08,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138550005] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:08,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 16:42:08,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-20 16:42:08,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584259016] [2023-12-20 16:42:08,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:08,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 16:42:08,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:08,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 16:42:08,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-20 16:42:08,842 INFO L87 Difference]: Start difference. First operand 5034 states and 5957 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:09,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:09,962 INFO L93 Difference]: Finished difference Result 13957 states and 16429 transitions. [2023-12-20 16:42:09,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 16:42:09,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 267 [2023-12-20 16:42:09,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:09,994 INFO L225 Difference]: With dead ends: 13957 [2023-12-20 16:42:09,994 INFO L226 Difference]: Without dead ends: 9292 [2023-12-20 16:42:10,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-20 16:42:10,006 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 274 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:10,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 167 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 16:42:10,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9292 states. [2023-12-20 16:42:10,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9292 to 4666. [2023-12-20 16:42:10,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4666 states, 4665 states have (on average 1.1942122186495177) internal successors, (5571), 4665 states have internal predecessors, (5571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:10,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4666 states to 4666 states and 5571 transitions. [2023-12-20 16:42:10,109 INFO L78 Accepts]: Start accepts. Automaton has 4666 states and 5571 transitions. Word has length 267 [2023-12-20 16:42:10,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:10,110 INFO L495 AbstractCegarLoop]: Abstraction has 4666 states and 5571 transitions. [2023-12-20 16:42:10,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:10,110 INFO L276 IsEmpty]: Start isEmpty. Operand 4666 states and 5571 transitions. [2023-12-20 16:42:10,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-12-20 16:42:10,114 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:10,115 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:10,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 16:42:10,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:42:10,322 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:10,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:10,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1010528376, now seen corresponding path program 1 times [2023-12-20 16:42:10,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:10,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167375602] [2023-12-20 16:42:10,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:10,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:10,902 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:42:10,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:10,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167375602] [2023-12-20 16:42:10,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167375602] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:10,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:42:10,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 16:42:10,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497266249] [2023-12-20 16:42:10,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:10,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 16:42:10,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:10,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 16:42:10,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-20 16:42:10,905 INFO L87 Difference]: Start difference. First operand 4666 states and 5571 transitions. Second operand has 5 states, 5 states have (on average 53.6) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:12,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:12,839 INFO L93 Difference]: Finished difference Result 15971 states and 19214 transitions. [2023-12-20 16:42:12,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 16:42:12,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.6) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 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 268 [2023-12-20 16:42:12,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:12,871 INFO L225 Difference]: With dead ends: 15971 [2023-12-20 16:42:12,871 INFO L226 Difference]: Without dead ends: 11306 [2023-12-20 16:42:12,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-20 16:42:12,878 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 360 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 1942 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 2223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 1942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:12,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 149 Invalid, 2223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 1942 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-20 16:42:12,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11306 states. [2023-12-20 16:42:13,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11306 to 10929. [2023-12-20 16:42:13,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10929 states, 10928 states have (on average 1.1707540263543192) internal successors, (12794), 10928 states have internal predecessors, (12794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:13,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10929 states to 10929 states and 12794 transitions. [2023-12-20 16:42:13,050 INFO L78 Accepts]: Start accepts. Automaton has 10929 states and 12794 transitions. Word has length 268 [2023-12-20 16:42:13,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:13,050 INFO L495 AbstractCegarLoop]: Abstraction has 10929 states and 12794 transitions. [2023-12-20 16:42:13,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.6) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:13,051 INFO L276 IsEmpty]: Start isEmpty. Operand 10929 states and 12794 transitions. [2023-12-20 16:42:13,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-12-20 16:42:13,057 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:13,058 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:13,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 16:42:13,059 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:13,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:13,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1361077587, now seen corresponding path program 1 times [2023-12-20 16:42:13,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:13,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574653569] [2023-12-20 16:42:13,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:13,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:13,214 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-12-20 16:42:13,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:13,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574653569] [2023-12-20 16:42:13,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574653569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:13,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:42:13,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:42:13,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584954733] [2023-12-20 16:42:13,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:13,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:42:13,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:13,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:42:13,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:42:13,216 INFO L87 Difference]: Start difference. First operand 10929 states and 12794 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:13,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:13,913 INFO L93 Difference]: Finished difference Result 21487 states and 25199 transitions. [2023-12-20 16:42:13,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:42:13,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 279 [2023-12-20 16:42:13,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:13,933 INFO L225 Difference]: With dead ends: 21487 [2023-12-20 16:42:13,934 INFO L226 Difference]: Without dead ends: 10927 [2023-12-20 16:42:13,945 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 [2023-12-20 16:42:13,946 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 185 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:13,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 301 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 16:42:13,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10927 states. [2023-12-20 16:42:14,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10927 to 10743. [2023-12-20 16:42:14,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10743 states, 10742 states have (on average 1.1419661143176316) internal successors, (12267), 10742 states have internal predecessors, (12267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:14,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10743 states to 10743 states and 12267 transitions. [2023-12-20 16:42:14,154 INFO L78 Accepts]: Start accepts. Automaton has 10743 states and 12267 transitions. Word has length 279 [2023-12-20 16:42:14,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:14,154 INFO L495 AbstractCegarLoop]: Abstraction has 10743 states and 12267 transitions. [2023-12-20 16:42:14,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:14,155 INFO L276 IsEmpty]: Start isEmpty. Operand 10743 states and 12267 transitions. [2023-12-20 16:42:14,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-12-20 16:42:14,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:14,162 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:14,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 16:42:14,163 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:14,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:14,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1847652386, now seen corresponding path program 1 times [2023-12-20 16:42:14,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:14,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948634912] [2023-12-20 16:42:14,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:14,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:14,521 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 95 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:42:14,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:14,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948634912] [2023-12-20 16:42:14,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948634912] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 16:42:14,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461454538] [2023-12-20 16:42:14,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:14,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:42:14,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 16:42:14,525 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 16:42:14,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 16:42:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:14,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 16:42:14,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 16:42:14,944 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:42:14,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 16:42:14,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461454538] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:14,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 16:42:14,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-20 16:42:14,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965064981] [2023-12-20 16:42:14,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:14,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:42:14,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:14,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:42:14,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-20 16:42:14,947 INFO L87 Difference]: Start difference. First operand 10743 states and 12267 transitions. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:15,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:15,695 INFO L93 Difference]: Finished difference Result 22425 states and 25760 transitions. [2023-12-20 16:42:15,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:42:15,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 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 282 [2023-12-20 16:42:15,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:15,715 INFO L225 Difference]: With dead ends: 22425 [2023-12-20 16:42:15,715 INFO L226 Difference]: Without dead ends: 12051 [2023-12-20 16:42:15,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-20 16:42:15,727 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 99 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:15,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 339 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 16:42:15,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12051 states. [2023-12-20 16:42:15,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12051 to 12042. [2023-12-20 16:42:15,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12042 states, 12041 states have (on average 1.1440079727597376) internal successors, (13775), 12041 states have internal predecessors, (13775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:15,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12042 states to 12042 states and 13775 transitions. [2023-12-20 16:42:15,916 INFO L78 Accepts]: Start accepts. Automaton has 12042 states and 13775 transitions. Word has length 282 [2023-12-20 16:42:15,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:15,916 INFO L495 AbstractCegarLoop]: Abstraction has 12042 states and 13775 transitions. [2023-12-20 16:42:15,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:15,917 INFO L276 IsEmpty]: Start isEmpty. Operand 12042 states and 13775 transitions. [2023-12-20 16:42:15,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-20 16:42:15,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:15,922 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:15,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-20 16:42:16,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-20 16:42:16,129 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:16,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:16,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1513495519, now seen corresponding path program 1 times [2023-12-20 16:42:16,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:16,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965688304] [2023-12-20 16:42:16,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:16,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:16,526 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:42:16,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:16,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965688304] [2023-12-20 16:42:16,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965688304] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:16,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:42:16,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 16:42:16,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363786415] [2023-12-20 16:42:16,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:16,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 16:42:16,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:16,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 16:42:16,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 16:42:16,529 INFO L87 Difference]: Start difference. First operand 12042 states and 13775 transitions. Second operand has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:17,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:17,610 INFO L93 Difference]: Finished difference Result 26297 states and 30093 transitions. [2023-12-20 16:42:17,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 16:42:17,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 0 states have call successors, (0), 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 285 [2023-12-20 16:42:17,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:17,634 INFO L225 Difference]: With dead ends: 26297 [2023-12-20 16:42:17,634 INFO L226 Difference]: Without dead ends: 14624 [2023-12-20 16:42:17,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 16:42:17,643 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 266 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:17,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 92 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 16:42:17,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14624 states. [2023-12-20 16:42:17,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14624 to 14618. [2023-12-20 16:42:17,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14618 states, 14617 states have (on average 1.1313539029896695) internal successors, (16537), 14617 states have internal predecessors, (16537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:17,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14618 states to 14618 states and 16537 transitions. [2023-12-20 16:42:17,818 INFO L78 Accepts]: Start accepts. Automaton has 14618 states and 16537 transitions. Word has length 285 [2023-12-20 16:42:17,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:17,819 INFO L495 AbstractCegarLoop]: Abstraction has 14618 states and 16537 transitions. [2023-12-20 16:42:17,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:17,819 INFO L276 IsEmpty]: Start isEmpty. Operand 14618 states and 16537 transitions. [2023-12-20 16:42:17,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2023-12-20 16:42:17,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:17,826 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:17,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 16:42:17,826 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:17,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:17,827 INFO L85 PathProgramCache]: Analyzing trace with hash -389952814, now seen corresponding path program 1 times [2023-12-20 16:42:17,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:17,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565569406] [2023-12-20 16:42:17,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:17,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:18,301 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:42:18,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:18,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565569406] [2023-12-20 16:42:18,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565569406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:18,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:42:18,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 16:42:18,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943827158] [2023-12-20 16:42:18,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:18,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 16:42:18,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:18,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 16:42:18,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 16:42:18,304 INFO L87 Difference]: Start difference. First operand 14618 states and 16537 transitions. Second operand has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:19,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:19,434 INFO L93 Difference]: Finished difference Result 30911 states and 35029 transitions. [2023-12-20 16:42:19,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 16:42:19,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 287 [2023-12-20 16:42:19,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:19,467 INFO L225 Difference]: With dead ends: 30911 [2023-12-20 16:42:19,468 INFO L226 Difference]: Without dead ends: 16662 [2023-12-20 16:42:19,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 16:42:19,484 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 251 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:19,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 175 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 16:42:19,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16662 states. [2023-12-20 16:42:19,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16662 to 15549. [2023-12-20 16:42:19,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15549 states, 15548 states have (on average 1.1291484435297143) internal successors, (17556), 15548 states have internal predecessors, (17556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:19,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15549 states to 15549 states and 17556 transitions. [2023-12-20 16:42:19,686 INFO L78 Accepts]: Start accepts. Automaton has 15549 states and 17556 transitions. Word has length 287 [2023-12-20 16:42:19,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:19,687 INFO L495 AbstractCegarLoop]: Abstraction has 15549 states and 17556 transitions. [2023-12-20 16:42:19,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:19,687 INFO L276 IsEmpty]: Start isEmpty. Operand 15549 states and 17556 transitions. [2023-12-20 16:42:19,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-12-20 16:42:19,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:19,694 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:19,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 16:42:19,695 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:19,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:19,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1354923130, now seen corresponding path program 1 times [2023-12-20 16:42:19,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:19,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671603353] [2023-12-20 16:42:19,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:19,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:19,892 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-20 16:42:19,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:19,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671603353] [2023-12-20 16:42:19,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671603353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:19,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:42:19,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:42:19,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295188966] [2023-12-20 16:42:19,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:19,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:42:19,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:19,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:42:19,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:42:19,895 INFO L87 Difference]: Start difference. First operand 15549 states and 17556 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:20,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:20,705 INFO L93 Difference]: Finished difference Result 33856 states and 38352 transitions. [2023-12-20 16:42:20,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:42:20,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 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 311 [2023-12-20 16:42:20,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:20,730 INFO L225 Difference]: With dead ends: 33856 [2023-12-20 16:42:20,730 INFO L226 Difference]: Without dead ends: 18676 [2023-12-20 16:42:20,745 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 [2023-12-20 16:42:20,746 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 152 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:20,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 354 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 16:42:20,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18676 states. [2023-12-20 16:42:20,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18676 to 17572. [2023-12-20 16:42:20,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17572 states, 17571 states have (on average 1.1227021797279608) internal successors, (19727), 17571 states have internal predecessors, (19727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:20,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17572 states to 17572 states and 19727 transitions. [2023-12-20 16:42:20,989 INFO L78 Accepts]: Start accepts. Automaton has 17572 states and 19727 transitions. Word has length 311 [2023-12-20 16:42:20,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:20,990 INFO L495 AbstractCegarLoop]: Abstraction has 17572 states and 19727 transitions. [2023-12-20 16:42:20,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:20,990 INFO L276 IsEmpty]: Start isEmpty. Operand 17572 states and 19727 transitions. [2023-12-20 16:42:20,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-12-20 16:42:20,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:20,999 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, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:20,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 16:42:20,999 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:21,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:21,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1778890969, now seen corresponding path program 1 times [2023-12-20 16:42:21,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:21,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012221121] [2023-12-20 16:42:21,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:21,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:21,884 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 221 proven. 72 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-20 16:42:21,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:21,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012221121] [2023-12-20 16:42:21,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012221121] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 16:42:21,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676840490] [2023-12-20 16:42:21,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:21,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:42:21,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 16:42:21,886 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 16:42:21,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 16:42:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:22,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-20 16:42:22,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 16:42:22,287 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-20 16:42:22,287 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 16:42:22,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676840490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:22,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 16:42:22,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-20 16:42:22,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813415454] [2023-12-20 16:42:22,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:22,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:42:22,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:22,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:42:22,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-20 16:42:22,290 INFO L87 Difference]: Start difference. First operand 17572 states and 19727 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) [2023-12-20 16:42:23,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:23,001 INFO L93 Difference]: Finished difference Result 37360 states and 41939 transitions. [2023-12-20 16:42:23,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:42:23,001 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 336 [2023-12-20 16:42:23,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:23,026 INFO L225 Difference]: With dead ends: 37360 [2023-12-20 16:42:23,026 INFO L226 Difference]: Without dead ends: 19973 [2023-12-20 16:42:23,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-20 16:42:23,041 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 84 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:23,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 362 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 16:42:23,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19973 states. [2023-12-20 16:42:23,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19973 to 19234. [2023-12-20 16:42:23,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19234 states, 19233 states have (on average 1.1169344356054698) internal successors, (21482), 19233 states have internal predecessors, (21482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:23,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19234 states to 19234 states and 21482 transitions. [2023-12-20 16:42:23,389 INFO L78 Accepts]: Start accepts. Automaton has 19234 states and 21482 transitions. Word has length 336 [2023-12-20 16:42:23,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:23,390 INFO L495 AbstractCegarLoop]: Abstraction has 19234 states and 21482 transitions. [2023-12-20 16:42:23,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2023-12-20 16:42:23,390 INFO L276 IsEmpty]: Start isEmpty. Operand 19234 states and 21482 transitions. [2023-12-20 16:42:23,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-12-20 16:42:23,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:23,401 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:23,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 16:42:23,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:42:23,609 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:23,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:23,609 INFO L85 PathProgramCache]: Analyzing trace with hash 305021484, now seen corresponding path program 1 times [2023-12-20 16:42:23,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:23,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911412022] [2023-12-20 16:42:23,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:23,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:24,589 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 254 proven. 54 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2023-12-20 16:42:24,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:24,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911412022] [2023-12-20 16:42:24,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911412022] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 16:42:24,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339875867] [2023-12-20 16:42:24,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:24,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:42:24,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 16:42:24,591 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 16:42:24,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 16:42:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:24,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-20 16:42:24,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 16:42:24,997 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-12-20 16:42:24,998 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 16:42:24,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339875867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:24,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 16:42:24,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-20 16:42:24,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411265816] [2023-12-20 16:42:24,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:24,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:42:24,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:25,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:42:25,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-20 16:42:25,000 INFO L87 Difference]: Start difference. First operand 19234 states and 21482 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) [2023-12-20 16:42:25,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:25,594 INFO L93 Difference]: Finished difference Result 39388 states and 43926 transitions. [2023-12-20 16:42:25,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:42:25,595 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 357 [2023-12-20 16:42:25,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:25,614 INFO L225 Difference]: With dead ends: 39388 [2023-12-20 16:42:25,614 INFO L226 Difference]: Without dead ends: 20155 [2023-12-20 16:42:25,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-20 16:42:25,629 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 90 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:25,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 168 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 16:42:25,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20155 states. [2023-12-20 16:42:25,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20155 to 17752. [2023-12-20 16:42:25,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17751 states have (on average 1.1128387133119262) internal successors, (19754), 17751 states have internal predecessors, (19754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:25,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 19754 transitions. [2023-12-20 16:42:25,872 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 19754 transitions. Word has length 357 [2023-12-20 16:42:25,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:25,873 INFO L495 AbstractCegarLoop]: Abstraction has 17752 states and 19754 transitions. [2023-12-20 16:42:25,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2023-12-20 16:42:25,873 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 19754 transitions. [2023-12-20 16:42:25,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2023-12-20 16:42:25,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:25,885 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:25,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-20 16:42:26,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-20 16:42:26,092 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:26,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:26,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1751541146, now seen corresponding path program 1 times [2023-12-20 16:42:26,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:26,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444692341] [2023-12-20 16:42:26,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:26,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:27,022 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 267 proven. 78 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-12-20 16:42:27,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:27,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444692341] [2023-12-20 16:42:27,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444692341] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 16:42:27,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904843068] [2023-12-20 16:42:27,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:27,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:42:27,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 16:42:27,024 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 16:42:27,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 16:42:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:27,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 16:42:27,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 16:42:27,698 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 202 proven. 143 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-12-20 16:42:27,698 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 16:42:28,115 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 297 proven. 48 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-12-20 16:42:28,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904843068] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 16:42:28,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 16:42:28,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2023-12-20 16:42:28,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707973308] [2023-12-20 16:42:28,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 16:42:28,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 16:42:28,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:28,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 16:42:28,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-12-20 16:42:28,118 INFO L87 Difference]: Start difference. First operand 17752 states and 19754 transitions. Second operand has 11 states, 11 states have (on average 75.9090909090909) internal successors, (835), 11 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:32,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:32,965 INFO L93 Difference]: Finished difference Result 47512 states and 52861 transitions. [2023-12-20 16:42:32,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-20 16:42:32,966 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 75.9090909090909) internal successors, (835), 11 states have internal predecessors, (835), 0 states have call successors, (0), 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 374 [2023-12-20 16:42:32,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:33,004 INFO L225 Difference]: With dead ends: 47512 [2023-12-20 16:42:33,004 INFO L226 Difference]: Without dead ends: 29209 [2023-12-20 16:42:33,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 779 GetRequests, 756 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=187, Invalid=413, Unknown=0, NotChecked=0, Total=600 [2023-12-20 16:42:33,015 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 2779 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 6777 mSolverCounterSat, 824 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2779 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 7601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 824 IncrementalHoareTripleChecker+Valid, 6777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:33,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2779 Valid, 229 Invalid, 7601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [824 Valid, 6777 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-20 16:42:33,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29209 states. [2023-12-20 16:42:33,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29209 to 14430. [2023-12-20 16:42:33,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14430 states, 14429 states have (on average 1.1045810520479589) internal successors, (15938), 14429 states have internal predecessors, (15938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:33,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14430 states to 14430 states and 15938 transitions. [2023-12-20 16:42:33,238 INFO L78 Accepts]: Start accepts. Automaton has 14430 states and 15938 transitions. Word has length 374 [2023-12-20 16:42:33,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:33,238 INFO L495 AbstractCegarLoop]: Abstraction has 14430 states and 15938 transitions. [2023-12-20 16:42:33,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 75.9090909090909) internal successors, (835), 11 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:33,238 INFO L276 IsEmpty]: Start isEmpty. Operand 14430 states and 15938 transitions. [2023-12-20 16:42:33,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2023-12-20 16:42:33,247 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:33,247 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:33,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 16:42:33,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-20 16:42:33,450 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:33,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:33,450 INFO L85 PathProgramCache]: Analyzing trace with hash 537959556, now seen corresponding path program 1 times [2023-12-20 16:42:33,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:33,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243208659] [2023-12-20 16:42:33,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:33,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:33,776 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 143 proven. 202 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-12-20 16:42:33,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:33,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243208659] [2023-12-20 16:42:33,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243208659] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 16:42:33,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999045232] [2023-12-20 16:42:33,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:33,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:42:33,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 16:42:33,781 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 16:42:33,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-20 16:42:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:33,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 16:42:33,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 16:42:34,152 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 395 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-20 16:42:34,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 16:42:34,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999045232] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:34,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 16:42:34,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-20 16:42:34,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937118691] [2023-12-20 16:42:34,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:34,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 16:42:34,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:34,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 16:42:34,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-20 16:42:34,155 INFO L87 Difference]: Start difference. First operand 14430 states and 15938 transitions. Second operand has 4 states, 4 states have (on average 83.25) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:35,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:35,186 INFO L93 Difference]: Finished difference Result 29971 states and 33113 transitions. [2023-12-20 16:42:35,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 16:42:35,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 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 380 [2023-12-20 16:42:35,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:35,199 INFO L225 Difference]: With dead ends: 29971 [2023-12-20 16:42:35,199 INFO L226 Difference]: Without dead ends: 15910 [2023-12-20 16:42:35,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-20 16:42:35,205 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 206 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:35,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 113 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 16:42:35,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15910 states. [2023-12-20 16:42:35,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15910 to 14800. [2023-12-20 16:42:35,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14800 states, 14799 states have (on average 1.1028447868099196) internal successors, (16321), 14799 states have internal predecessors, (16321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:35,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14800 states to 14800 states and 16321 transitions. [2023-12-20 16:42:35,369 INFO L78 Accepts]: Start accepts. Automaton has 14800 states and 16321 transitions. Word has length 380 [2023-12-20 16:42:35,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:35,369 INFO L495 AbstractCegarLoop]: Abstraction has 14800 states and 16321 transitions. [2023-12-20 16:42:35,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:35,370 INFO L276 IsEmpty]: Start isEmpty. Operand 14800 states and 16321 transitions. [2023-12-20 16:42:35,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2023-12-20 16:42:35,380 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:35,380 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:35,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-20 16:42:35,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:42:35,581 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:35,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:35,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1725273165, now seen corresponding path program 1 times [2023-12-20 16:42:35,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:35,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681232594] [2023-12-20 16:42:35,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:35,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:35,902 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-12-20 16:42:35,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:35,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681232594] [2023-12-20 16:42:35,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681232594] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:35,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:42:35,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:42:35,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657462833] [2023-12-20 16:42:35,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:35,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 16:42:35,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:35,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 16:42:35,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 16:42:35,905 INFO L87 Difference]: Start difference. First operand 14800 states and 16321 transitions. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:36,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:36,870 INFO L93 Difference]: Finished difference Result 35126 states and 38623 transitions. [2023-12-20 16:42:36,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 16:42:36,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 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 413 [2023-12-20 16:42:36,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:36,891 INFO L225 Difference]: With dead ends: 35126 [2023-12-20 16:42:36,891 INFO L226 Difference]: Without dead ends: 20695 [2023-12-20 16:42:36,900 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 [2023-12-20 16:42:36,901 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 197 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:36,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 65 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 16:42:36,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20695 states. [2023-12-20 16:42:37,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20695 to 19770. [2023-12-20 16:42:37,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19770 states, 19769 states have (on average 1.097577014517679) internal successors, (21698), 19769 states have internal predecessors, (21698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:37,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19770 states to 19770 states and 21698 transitions. [2023-12-20 16:42:37,083 INFO L78 Accepts]: Start accepts. Automaton has 19770 states and 21698 transitions. Word has length 413 [2023-12-20 16:42:37,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:37,083 INFO L495 AbstractCegarLoop]: Abstraction has 19770 states and 21698 transitions. [2023-12-20 16:42:37,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:37,083 INFO L276 IsEmpty]: Start isEmpty. Operand 19770 states and 21698 transitions. [2023-12-20 16:42:37,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2023-12-20 16:42:37,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:37,091 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:37,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 16:42:37,092 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:37,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:37,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1104221187, now seen corresponding path program 1 times [2023-12-20 16:42:37,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:37,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063150566] [2023-12-20 16:42:37,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:37,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:37,489 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 143 proven. 229 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-20 16:42:37,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:37,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063150566] [2023-12-20 16:42:37,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063150566] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 16:42:37,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814385966] [2023-12-20 16:42:37,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:37,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:42:37,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 16:42:37,490 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 16:42:37,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-20 16:42:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:37,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-20 16:42:37,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 16:42:38,958 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 248 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:42:38,959 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 16:42:41,205 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 248 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:42:41,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814385966] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 16:42:41,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 16:42:41,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 11 [2023-12-20 16:42:41,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485187307] [2023-12-20 16:42:41,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 16:42:41,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 16:42:41,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:41,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 16:42:41,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-20 16:42:41,211 INFO L87 Difference]: Start difference. First operand 19770 states and 21698 transitions. Second operand has 12 states, 12 states have (on average 80.66666666666667) internal successors, (968), 11 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:47,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:47,121 INFO L93 Difference]: Finished difference Result 54517 states and 59562 transitions. [2023-12-20 16:42:47,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-20 16:42:47,121 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 80.66666666666667) internal successors, (968), 11 states have internal predecessors, (968), 0 states have call successors, (0), 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 416 [2023-12-20 16:42:47,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:47,156 INFO L225 Difference]: With dead ends: 54517 [2023-12-20 16:42:47,156 INFO L226 Difference]: Without dead ends: 34748 [2023-12-20 16:42:47,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 860 GetRequests, 824 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=395, Invalid=1011, Unknown=0, NotChecked=0, Total=1406 [2023-12-20 16:42:47,171 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 3864 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 5999 mSolverCounterSat, 1102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3864 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 7101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1102 IncrementalHoareTripleChecker+Valid, 5999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:47,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3864 Valid, 150 Invalid, 7101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1102 Valid, 5999 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-12-20 16:42:47,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34748 states. [2023-12-20 16:42:47,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34748 to 23264. [2023-12-20 16:42:47,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23264 states, 23263 states have (on average 1.075140781498517) internal successors, (25011), 23263 states have internal predecessors, (25011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:47,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23264 states to 23264 states and 25011 transitions. [2023-12-20 16:42:47,409 INFO L78 Accepts]: Start accepts. Automaton has 23264 states and 25011 transitions. Word has length 416 [2023-12-20 16:42:47,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:47,410 INFO L495 AbstractCegarLoop]: Abstraction has 23264 states and 25011 transitions. [2023-12-20 16:42:47,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 80.66666666666667) internal successors, (968), 11 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:47,410 INFO L276 IsEmpty]: Start isEmpty. Operand 23264 states and 25011 transitions. [2023-12-20 16:42:47,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2023-12-20 16:42:47,422 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:47,422 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, 5, 5, 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, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:47,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-20 16:42:47,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:42:47,623 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:47,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:47,623 INFO L85 PathProgramCache]: Analyzing trace with hash 641805270, now seen corresponding path program 1 times [2023-12-20 16:42:47,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:47,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280627533] [2023-12-20 16:42:47,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:47,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:48,126 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 517 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2023-12-20 16:42:48,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:48,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280627533] [2023-12-20 16:42:48,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280627533] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:48,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:42:48,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:42:48,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408672519] [2023-12-20 16:42:48,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:48,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:42:48,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:48,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:42:48,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:42:48,128 INFO L87 Difference]: Start difference. First operand 23264 states and 25011 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:48,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:48,706 INFO L93 Difference]: Finished difference Result 45062 states and 48487 transitions. [2023-12-20 16:42:48,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:42:48,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 510 [2023-12-20 16:42:48,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:48,731 INFO L225 Difference]: With dead ends: 45062 [2023-12-20 16:42:48,731 INFO L226 Difference]: Without dead ends: 23641 [2023-12-20 16:42:48,745 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 [2023-12-20 16:42:48,746 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 65 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:48,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 156 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 16:42:48,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23641 states. [2023-12-20 16:42:48,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23641 to 22896. [2023-12-20 16:42:48,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22896 states, 22895 states have (on average 1.0722428477833588) internal successors, (24549), 22895 states have internal predecessors, (24549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:48,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22896 states to 22896 states and 24549 transitions. [2023-12-20 16:42:48,942 INFO L78 Accepts]: Start accepts. Automaton has 22896 states and 24549 transitions. Word has length 510 [2023-12-20 16:42:48,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:48,943 INFO L495 AbstractCegarLoop]: Abstraction has 22896 states and 24549 transitions. [2023-12-20 16:42:48,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:48,943 INFO L276 IsEmpty]: Start isEmpty. Operand 22896 states and 24549 transitions. [2023-12-20 16:42:48,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2023-12-20 16:42:48,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:48,952 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, 5, 5, 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, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:48,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-20 16:42:48,953 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:48,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:48,953 INFO L85 PathProgramCache]: Analyzing trace with hash -118369769, now seen corresponding path program 1 times [2023-12-20 16:42:48,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:48,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45962276] [2023-12-20 16:42:48,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:48,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:49,535 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 514 proven. 3 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2023-12-20 16:42:49,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:49,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45962276] [2023-12-20 16:42:49,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45962276] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 16:42:49,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333642634] [2023-12-20 16:42:49,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:49,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:42:49,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 16:42:49,541 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 16:42:49,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-20 16:42:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:49,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 16:42:49,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 16:42:50,075 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 517 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2023-12-20 16:42:50,075 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 16:42:50,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333642634] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:50,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 16:42:50,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-12-20 16:42:50,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779020366] [2023-12-20 16:42:50,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:50,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 16:42:50,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:50,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 16:42:50,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-20 16:42:50,077 INFO L87 Difference]: Start difference. First operand 22896 states and 24549 transitions. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:50,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:50,956 INFO L93 Difference]: Finished difference Result 46334 states and 49685 transitions. [2023-12-20 16:42:50,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 16:42:50,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 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 511 [2023-12-20 16:42:50,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:50,981 INFO L225 Difference]: With dead ends: 46334 [2023-12-20 16:42:50,981 INFO L226 Difference]: Without dead ends: 23623 [2023-12-20 16:42:50,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 509 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-20 16:42:50,996 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 257 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:50,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 153 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 16:42:51,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23623 states. [2023-12-20 16:42:51,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23623 to 21410. [2023-12-20 16:42:51,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21410 states, 21409 states have (on average 1.0685692932878696) internal successors, (22877), 21409 states have internal predecessors, (22877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:51,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21410 states to 21410 states and 22877 transitions. [2023-12-20 16:42:51,212 INFO L78 Accepts]: Start accepts. Automaton has 21410 states and 22877 transitions. Word has length 511 [2023-12-20 16:42:51,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:51,212 INFO L495 AbstractCegarLoop]: Abstraction has 21410 states and 22877 transitions. [2023-12-20 16:42:51,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:51,212 INFO L276 IsEmpty]: Start isEmpty. Operand 21410 states and 22877 transitions. [2023-12-20 16:42:51,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2023-12-20 16:42:51,224 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:51,224 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, 5, 5, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:51,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-20 16:42:51,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-12-20 16:42:51,425 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:51,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:51,426 INFO L85 PathProgramCache]: Analyzing trace with hash 300814061, now seen corresponding path program 1 times [2023-12-20 16:42:51,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:51,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767860636] [2023-12-20 16:42:51,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:51,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:53,182 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 609 proven. 259 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 16:42:53,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:53,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767860636] [2023-12-20 16:42:53,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767860636] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 16:42:53,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769987386] [2023-12-20 16:42:53,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:53,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:42:53,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 16:42:53,185 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 16:42:53,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-20 16:42:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:53,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 16:42:53,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 16:42:53,484 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 696 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-12-20 16:42:53,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 16:42:53,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769987386] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:42:53,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 16:42:53,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2023-12-20 16:42:53,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614002952] [2023-12-20 16:42:53,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:42:53,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:42:53,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:53,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:42:53,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-20 16:42:53,486 INFO L87 Difference]: Start difference. First operand 21410 states and 22877 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:54,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:54,164 INFO L93 Difference]: Finished difference Result 43196 states and 46138 transitions. [2023-12-20 16:42:54,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:42:54,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 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 538 [2023-12-20 16:42:54,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:54,185 INFO L225 Difference]: With dead ends: 43196 [2023-12-20 16:42:54,186 INFO L226 Difference]: Without dead ends: 23445 [2023-12-20 16:42:54,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-20 16:42:54,200 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 91 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:54,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 335 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 16:42:54,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23445 states. [2023-12-20 16:42:54,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23445 to 21042. [2023-12-20 16:42:54,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21042 states, 21041 states have (on average 1.0688180219571313) internal successors, (22489), 21041 states have internal predecessors, (22489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:54,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21042 states to 21042 states and 22489 transitions. [2023-12-20 16:42:54,419 INFO L78 Accepts]: Start accepts. Automaton has 21042 states and 22489 transitions. Word has length 538 [2023-12-20 16:42:54,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:42:54,419 INFO L495 AbstractCegarLoop]: Abstraction has 21042 states and 22489 transitions. [2023-12-20 16:42:54,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:54,420 INFO L276 IsEmpty]: Start isEmpty. Operand 21042 states and 22489 transitions. [2023-12-20 16:42:54,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2023-12-20 16:42:54,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:42:54,436 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, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:42:54,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-20 16:42:54,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-12-20 16:42:54,647 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:42:54,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:42:54,647 INFO L85 PathProgramCache]: Analyzing trace with hash -501326869, now seen corresponding path program 1 times [2023-12-20 16:42:54,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:42:54,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520779220] [2023-12-20 16:42:54,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:54,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:42:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:55,140 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 191 proven. 406 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2023-12-20 16:42:55,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:42:55,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520779220] [2023-12-20 16:42:55,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520779220] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 16:42:55,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727981712] [2023-12-20 16:42:55,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:42:55,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:42:55,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 16:42:55,184 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 16:42:55,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-20 16:42:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:42:55,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-20 16:42:55,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 16:42:56,045 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 241 proven. 454 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-12-20 16:42:56,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 16:42:57,398 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 191 proven. 406 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2023-12-20 16:42:57,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727981712] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 16:42:57,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 16:42:57,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 9 [2023-12-20 16:42:57,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095085036] [2023-12-20 16:42:57,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 16:42:57,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 16:42:57,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:42:57,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 16:42:57,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2023-12-20 16:42:57,402 INFO L87 Difference]: Start difference. First operand 21042 states and 22489 transitions. Second operand has 10 states, 10 states have (on average 80.4) internal successors, (804), 9 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:42:59,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:42:59,821 INFO L93 Difference]: Finished difference Result 38745 states and 41219 transitions. [2023-12-20 16:42:59,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 16:42:59,822 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 80.4) internal successors, (804), 9 states have internal predecessors, (804), 0 states have call successors, (0), 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 571 [2023-12-20 16:42:59,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:42:59,868 INFO L225 Difference]: With dead ends: 38745 [2023-12-20 16:42:59,868 INFO L226 Difference]: Without dead ends: 38743 [2023-12-20 16:42:59,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1144 GetRequests, 1136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2023-12-20 16:42:59,880 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 1003 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 3119 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 3621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 3119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-20 16:42:59,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 118 Invalid, 3621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 3119 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-20 16:42:59,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38743 states. [2023-12-20 16:43:00,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38743 to 13666. [2023-12-20 16:43:00,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13666 states, 13665 states have (on average 1.071569703622393) internal successors, (14643), 13665 states have internal predecessors, (14643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:00,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13666 states to 13666 states and 14643 transitions. [2023-12-20 16:43:00,174 INFO L78 Accepts]: Start accepts. Automaton has 13666 states and 14643 transitions. Word has length 571 [2023-12-20 16:43:00,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:43:00,175 INFO L495 AbstractCegarLoop]: Abstraction has 13666 states and 14643 transitions. [2023-12-20 16:43:00,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 80.4) internal successors, (804), 9 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:00,175 INFO L276 IsEmpty]: Start isEmpty. Operand 13666 states and 14643 transitions. [2023-12-20 16:43:00,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2023-12-20 16:43:00,184 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:43:00,185 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:43:00,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-20 16:43:00,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-12-20 16:43:00,392 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:43:00,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:43:00,392 INFO L85 PathProgramCache]: Analyzing trace with hash -111306032, now seen corresponding path program 1 times [2023-12-20 16:43:00,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:43:00,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670729677] [2023-12-20 16:43:00,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:43:00,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:43:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:43:00,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 902 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2023-12-20 16:43:00,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:43:00,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670729677] [2023-12-20 16:43:00,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670729677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:43:00,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:43:00,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:43:00,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825897696] [2023-12-20 16:43:00,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:43:00,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 16:43:00,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:43:00,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 16:43:00,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 16:43:00,859 INFO L87 Difference]: Start difference. First operand 13666 states and 14643 transitions. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:01,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:43:01,831 INFO L93 Difference]: Finished difference Result 30473 states and 32581 transitions. [2023-12-20 16:43:01,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 16:43:01,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 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 585 [2023-12-20 16:43:01,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:43:01,845 INFO L225 Difference]: With dead ends: 30473 [2023-12-20 16:43:01,845 INFO L226 Difference]: Without dead ends: 16070 [2023-12-20 16:43:01,854 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 [2023-12-20 16:43:01,854 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 198 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 16:43:01,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 60 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 16:43:01,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16070 states. [2023-12-20 16:43:01,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16070 to 13850. [2023-12-20 16:43:01,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13850 states, 13849 states have (on average 1.0699689508267745) internal successors, (14818), 13849 states have internal predecessors, (14818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:01,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13850 states to 13850 states and 14818 transitions. [2023-12-20 16:43:01,998 INFO L78 Accepts]: Start accepts. Automaton has 13850 states and 14818 transitions. Word has length 585 [2023-12-20 16:43:01,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:43:01,998 INFO L495 AbstractCegarLoop]: Abstraction has 13850 states and 14818 transitions. [2023-12-20 16:43:01,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:01,999 INFO L276 IsEmpty]: Start isEmpty. Operand 13850 states and 14818 transitions. [2023-12-20 16:43:02,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2023-12-20 16:43:02,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:43:02,011 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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] [2023-12-20 16:43:02,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-20 16:43:02,012 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:43:02,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:43:02,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1165889299, now seen corresponding path program 1 times [2023-12-20 16:43:02,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:43:02,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585573212] [2023-12-20 16:43:02,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:43:02,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:43:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:43:02,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1252 backedges. 890 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2023-12-20 16:43:02,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:43:02,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585573212] [2023-12-20 16:43:02,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585573212] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:43:02,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:43:02,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:43:02,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818141320] [2023-12-20 16:43:02,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:43:02,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:43:02,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:43:02,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:43:02,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:43:02,586 INFO L87 Difference]: Start difference. First operand 13850 states and 14818 transitions. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:03,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:43:03,186 INFO L93 Difference]: Finished difference Result 28623 states and 30519 transitions. [2023-12-20 16:43:03,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:43:03,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 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 703 [2023-12-20 16:43:03,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:43:03,199 INFO L225 Difference]: With dead ends: 28623 [2023-12-20 16:43:03,199 INFO L226 Difference]: Without dead ends: 14774 [2023-12-20 16:43:03,207 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 [2023-12-20 16:43:03,207 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 122 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 16:43:03,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 61 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 16:43:03,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14774 states. [2023-12-20 16:43:03,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14774 to 12746. [2023-12-20 16:43:03,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12746 states, 12745 states have (on average 1.0648881914476265) internal successors, (13572), 12745 states have internal predecessors, (13572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:03,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12746 states to 12746 states and 13572 transitions. [2023-12-20 16:43:03,321 INFO L78 Accepts]: Start accepts. Automaton has 12746 states and 13572 transitions. Word has length 703 [2023-12-20 16:43:03,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:43:03,322 INFO L495 AbstractCegarLoop]: Abstraction has 12746 states and 13572 transitions. [2023-12-20 16:43:03,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:03,322 INFO L276 IsEmpty]: Start isEmpty. Operand 12746 states and 13572 transitions. [2023-12-20 16:43:03,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 835 [2023-12-20 16:43:03,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:43:03,333 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:43:03,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-20 16:43:03,333 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:43:03,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:43:03,334 INFO L85 PathProgramCache]: Analyzing trace with hash 969803861, now seen corresponding path program 1 times [2023-12-20 16:43:03,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:43:03,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440606614] [2023-12-20 16:43:03,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:43:03,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:43:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:43:04,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1833 backedges. 1314 proven. 73 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2023-12-20 16:43:04,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:43:04,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440606614] [2023-12-20 16:43:04,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440606614] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 16:43:04,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188411377] [2023-12-20 16:43:04,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:43:04,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 16:43:04,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 16:43:04,440 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 16:43:04,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-20 16:43:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:43:04,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 1043 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-20 16:43:04,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 16:43:06,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1833 backedges. 975 proven. 496 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2023-12-20 16:43:06,450 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 16:43:08,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1833 backedges. 975 proven. 496 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2023-12-20 16:43:08,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188411377] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 16:43:08,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 16:43:08,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 13 [2023-12-20 16:43:08,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521620714] [2023-12-20 16:43:08,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 16:43:08,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 16:43:08,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:43:08,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 16:43:08,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-12-20 16:43:08,466 INFO L87 Difference]: Start difference. First operand 12746 states and 13572 transitions. Second operand has 13 states, 13 states have (on average 98.38461538461539) internal successors, (1279), 13 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:14,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:43:14,214 INFO L93 Difference]: Finished difference Result 32891 states and 34960 transitions. [2023-12-20 16:43:14,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-20 16:43:14,215 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 98.38461538461539) internal successors, (1279), 13 states have internal predecessors, (1279), 0 states have call successors, (0), 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 834 [2023-12-20 16:43:14,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:43:14,229 INFO L225 Difference]: With dead ends: 32891 [2023-12-20 16:43:14,229 INFO L226 Difference]: Without dead ends: 20146 [2023-12-20 16:43:14,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1722 GetRequests, 1683 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=449, Invalid=1191, Unknown=0, NotChecked=0, Total=1640 [2023-12-20 16:43:14,235 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 4089 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 7580 mSolverCounterSat, 974 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4089 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 8554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 974 IncrementalHoareTripleChecker+Valid, 7580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-20 16:43:14,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4089 Valid, 183 Invalid, 8554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [974 Valid, 7580 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-20 16:43:14,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20146 states. [2023-12-20 16:43:14,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20146 to 9604. [2023-12-20 16:43:14,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9604 states, 9603 states have (on average 1.063105279600125) internal successors, (10209), 9603 states have internal predecessors, (10209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:14,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9604 states to 9604 states and 10209 transitions. [2023-12-20 16:43:14,342 INFO L78 Accepts]: Start accepts. Automaton has 9604 states and 10209 transitions. Word has length 834 [2023-12-20 16:43:14,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:43:14,342 INFO L495 AbstractCegarLoop]: Abstraction has 9604 states and 10209 transitions. [2023-12-20 16:43:14,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 98.38461538461539) internal successors, (1279), 13 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:14,342 INFO L276 IsEmpty]: Start isEmpty. Operand 9604 states and 10209 transitions. [2023-12-20 16:43:14,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 892 [2023-12-20 16:43:14,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:43:14,351 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2023-12-20 16:43:14,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-20 16:43:14,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-12-20 16:43:14,552 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:43:14,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:43:14,553 INFO L85 PathProgramCache]: Analyzing trace with hash 571120996, now seen corresponding path program 1 times [2023-12-20 16:43:14,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:43:14,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758594269] [2023-12-20 16:43:14,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:43:14,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:43:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:43:15,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2440 backedges. 1638 proven. 0 refuted. 0 times theorem prover too weak. 802 trivial. 0 not checked. [2023-12-20 16:43:15,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:43:15,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758594269] [2023-12-20 16:43:15,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758594269] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:43:15,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:43:15,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:43:15,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004176906] [2023-12-20 16:43:15,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:43:15,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:43:15,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:43:15,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:43:15,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:43:15,275 INFO L87 Difference]: Start difference. First operand 9604 states and 10209 transitions. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:15,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:43:15,846 INFO L93 Difference]: Finished difference Result 19393 states and 20624 transitions. [2023-12-20 16:43:15,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:43:15,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 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 891 [2023-12-20 16:43:15,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:43:15,855 INFO L225 Difference]: With dead ends: 19393 [2023-12-20 16:43:15,855 INFO L226 Difference]: Without dead ends: 10342 [2023-12-20 16:43:15,859 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 [2023-12-20 16:43:15,859 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 122 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 16:43:15,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 120 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 16:43:15,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10342 states. [2023-12-20 16:43:15,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10342 to 9604. [2023-12-20 16:43:15,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9604 states, 9603 states have (on average 1.0625846089763615) internal successors, (10204), 9603 states have internal predecessors, (10204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:15,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9604 states to 9604 states and 10204 transitions. [2023-12-20 16:43:15,991 INFO L78 Accepts]: Start accepts. Automaton has 9604 states and 10204 transitions. Word has length 891 [2023-12-20 16:43:15,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:43:15,991 INFO L495 AbstractCegarLoop]: Abstraction has 9604 states and 10204 transitions. [2023-12-20 16:43:15,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:15,991 INFO L276 IsEmpty]: Start isEmpty. Operand 9604 states and 10204 transitions. [2023-12-20 16:43:16,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 915 [2023-12-20 16:43:16,001 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:43:16,002 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2023-12-20 16:43:16,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-20 16:43:16,002 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:43:16,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:43:16,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1160410596, now seen corresponding path program 1 times [2023-12-20 16:43:16,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:43:16,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576145017] [2023-12-20 16:43:16,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:43:16,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:43:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:43:16,308 INFO L134 CoverageAnalysis]: Checked inductivity of 3097 backedges. 2039 proven. 0 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2023-12-20 16:43:16,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:43:16,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576145017] [2023-12-20 16:43:16,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576145017] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:43:16,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:43:16,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 16:43:16,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596737543] [2023-12-20 16:43:16,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:43:16,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 16:43:16,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:43:16,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 16:43:16,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 16:43:16,310 INFO L87 Difference]: Start difference. First operand 9604 states and 10204 transitions. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:16,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:43:16,808 INFO L93 Difference]: Finished difference Result 19026 states and 20213 transitions. [2023-12-20 16:43:16,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 16:43:16,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 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 914 [2023-12-20 16:43:16,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:43:16,818 INFO L225 Difference]: With dead ends: 19026 [2023-12-20 16:43:16,819 INFO L226 Difference]: Without dead ends: 9791 [2023-12-20 16:43:16,823 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 [2023-12-20 16:43:16,824 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 112 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 16:43:16,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 332 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 16:43:16,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9791 states. [2023-12-20 16:43:16,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9791 to 8684. [2023-12-20 16:43:16,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8684 states, 8683 states have (on average 1.0620753195900035) internal successors, (9222), 8683 states have internal predecessors, (9222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:16,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8684 states to 8684 states and 9222 transitions. [2023-12-20 16:43:16,901 INFO L78 Accepts]: Start accepts. Automaton has 8684 states and 9222 transitions. Word has length 914 [2023-12-20 16:43:16,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:43:16,901 INFO L495 AbstractCegarLoop]: Abstraction has 8684 states and 9222 transitions. [2023-12-20 16:43:16,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:16,901 INFO L276 IsEmpty]: Start isEmpty. Operand 8684 states and 9222 transitions. [2023-12-20 16:43:16,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1067 [2023-12-20 16:43:16,912 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:43:16,912 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2023-12-20 16:43:16,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-20 16:43:16,913 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:43:16,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:43:16,913 INFO L85 PathProgramCache]: Analyzing trace with hash 2087776386, now seen corresponding path program 1 times [2023-12-20 16:43:16,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:43:16,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54424973] [2023-12-20 16:43:16,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:43:16,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:43:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:43:17,895 INFO L134 CoverageAnalysis]: Checked inductivity of 4128 backedges. 2832 proven. 0 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2023-12-20 16:43:17,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:43:17,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54424973] [2023-12-20 16:43:17,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54424973] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:43:17,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:43:17,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 16:43:17,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277215011] [2023-12-20 16:43:17,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:43:17,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 16:43:17,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:43:17,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 16:43:17,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 16:43:17,897 INFO L87 Difference]: Start difference. First operand 8684 states and 9222 transitions. Second operand has 4 states, 4 states have (on average 127.25) internal successors, (509), 4 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:18,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:43:18,755 INFO L93 Difference]: Finished difference Result 19765 states and 21011 transitions. [2023-12-20 16:43:18,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 16:43:18,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 127.25) internal successors, (509), 4 states have internal predecessors, (509), 0 states have call successors, (0), 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 1066 [2023-12-20 16:43:18,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:43:18,764 INFO L225 Difference]: With dead ends: 19765 [2023-12-20 16:43:18,764 INFO L226 Difference]: Without dead ends: 11634 [2023-12-20 16:43:18,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 16:43:18,769 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 181 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 16:43:18,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 106 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 16:43:18,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11634 states. [2023-12-20 16:43:18,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11634 to 10528. [2023-12-20 16:43:18,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10528 states, 10527 states have (on average 1.0622209556378834) internal successors, (11182), 10527 states have internal predecessors, (11182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:18,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10528 states to 10528 states and 11182 transitions. [2023-12-20 16:43:18,859 INFO L78 Accepts]: Start accepts. Automaton has 10528 states and 11182 transitions. Word has length 1066 [2023-12-20 16:43:18,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:43:18,859 INFO L495 AbstractCegarLoop]: Abstraction has 10528 states and 11182 transitions. [2023-12-20 16:43:18,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 127.25) internal successors, (509), 4 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:18,859 INFO L276 IsEmpty]: Start isEmpty. Operand 10528 states and 11182 transitions. [2023-12-20 16:43:18,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1074 [2023-12-20 16:43:18,871 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 16:43:18,871 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:43:18,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-20 16:43:18,871 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 16:43:18,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 16:43:18,872 INFO L85 PathProgramCache]: Analyzing trace with hash -242777835, now seen corresponding path program 1 times [2023-12-20 16:43:18,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 16:43:18,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833549519] [2023-12-20 16:43:18,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 16:43:18,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 16:43:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 16:43:19,935 INFO L134 CoverageAnalysis]: Checked inductivity of 3397 backedges. 2489 proven. 0 refuted. 0 times theorem prover too weak. 908 trivial. 0 not checked. [2023-12-20 16:43:19,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 16:43:19,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833549519] [2023-12-20 16:43:19,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833549519] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 16:43:19,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 16:43:19,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 16:43:19,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641246833] [2023-12-20 16:43:19,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 16:43:19,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 16:43:19,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 16:43:19,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 16:43:19,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 16:43:19,937 INFO L87 Difference]: Start difference. First operand 10528 states and 11182 transitions. Second operand has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:20,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 16:43:20,630 INFO L93 Difference]: Finished difference Result 17174 states and 18206 transitions. [2023-12-20 16:43:20,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 16:43:20,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 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 1073 [2023-12-20 16:43:20,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 16:43:20,631 INFO L225 Difference]: With dead ends: 17174 [2023-12-20 16:43:20,631 INFO L226 Difference]: Without dead ends: 0 [2023-12-20 16:43:20,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 16:43:20,637 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 201 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 16:43:20,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 30 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 16:43:20,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-20 16:43:20,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-20 16:43:20,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:20,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-20 16:43:20,638 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1073 [2023-12-20 16:43:20,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 16:43:20,638 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-20 16:43:20,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 16:43:20,638 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-20 16:43:20,638 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-20 16:43:20,640 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 16:43:20,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-20 16:43:20,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-20 16:45:52,411 WARN L293 SmtUtils]: Spent 2.53m on a formula simplification. DAG size of input: 1024 DAG size of output: 1631 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-20 16:46:02,670 WARN L293 SmtUtils]: Spent 10.24s on a formula simplification. DAG size of input: 1631 DAG size of output: 138 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-20 16:46:02,676 INFO L899 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2023-12-20 16:46:02,676 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,677 INFO L899 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2023-12-20 16:46:02,677 INFO L899 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,677 INFO L899 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,677 INFO L899 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,677 INFO L899 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,677 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,677 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,677 INFO L899 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,678 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,678 INFO L899 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,678 INFO L899 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,678 INFO L899 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,678 INFO L899 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,678 INFO L899 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,678 INFO L899 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,678 INFO L899 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,678 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,680 INFO L899 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,680 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2023-12-20 16:46:02,680 INFO L899 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2023-12-20 16:46:02,680 INFO L899 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,680 INFO L899 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,680 INFO L899 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,680 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,680 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,680 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,680 INFO L899 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,680 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,680 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,680 INFO L899 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,680 INFO L899 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2023-12-20 16:46:02,680 INFO L899 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2023-12-20 16:46:02,681 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,681 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,681 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,681 INFO L899 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,681 INFO L899 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,681 INFO L899 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,681 INFO L899 garLoopResultBuilder]: For program point L1038(lines 1038 1054) no Hoare annotation was computed. [2023-12-20 16:46:02,681 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,681 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,681 INFO L899 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,681 INFO L899 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,681 INFO L899 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,681 INFO L899 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,681 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,681 INFO L899 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,681 INFO L899 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,682 INFO L899 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,682 INFO L899 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,682 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,682 INFO L899 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,682 INFO L899 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,682 INFO L899 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,682 INFO L899 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,682 INFO L899 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,682 INFO L895 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse7 (= ~a25~0 13)) (.cse15 (= ~a25~0 12)) (.cse9 (= ~a4~0 1))) (let ((.cse19 (<= 130 ~a29~0)) (.cse4 (<= 0 (+ ~a29~0 28553))) (.cse24 (<= (+ 119992 ~a23~0) 0)) (.cse17 (not .cse9)) (.cse10 (<= ~a29~0 277)) (.cse13 (<= 0 (+ ~a23~0 1253899))) (.cse16 (<= ~a29~0 274)) (.cse30 (<= 246 ~a29~0)) (.cse18 (<= (+ ~a23~0 43) 0)) (.cse11 (<= 141 ~a29~0)) (.cse22 (<= ~a29~0 232)) (.cse23 (<= 312 ~a23~0)) (.cse0 (<= (+ ~a23~0 55) 0)) (.cse1 (<= (+ ~a29~0 7787) 0)) (.cse29 (<= ~a4~0 0)) (.cse6 (let ((.cse32 (mod ~a29~0 15))) (or (< 4 .cse32) (= .cse32 0)))) (.cse21 (= ~a25~0 11)) (.cse28 (<= 261 ~a29~0)) (.cse8 (<= ~a23~0 262)) (.cse14 (<= 307 ~a23~0)) (.cse31 (or .cse7 .cse15)) (.cse12 (<= ~a25~0 9)) (.cse20 (<= ~a23~0 600000)) (.cse5 (= ~a25~0 10)) (.cse25 (<= 0 (+ ~a23~0 599772))) (.cse2 (= ~a3~0 1)) (.cse26 (<= ~a23~0 312)) (.cse3 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse1 .cse8 .cse2 .cse9 .cse3) (and .cse10 .cse11 .cse2 .cse9 .cse12 .cse3) (and .cse1 .cse9 .cse12) (and .cse0 .cse1 .cse13 .cse2 .cse12 .cse3) (and .cse14 .cse10 .cse11 .cse2 .cse9 .cse3 .cse5) (and .cse0 .cse15 .cse16 .cse13 .cse11 .cse2 .cse17 .cse3) (and .cse7 .cse18 .cse2 .cse9 .cse3 .cse19) (and .cse20 (or (and .cse15 .cse9) (and .cse21 .cse9)) .cse11 .cse2 .cse22 .cse23 .cse3) (and .cse20 (< ~a25~0 10) (<= 278 ~a29~0) .cse2 .cse9 .cse3) (and .cse21 .cse16 .cse13 .cse2 .cse24 .cse9 .cse3 .cse19) (and .cse25 .cse21 .cse2 .cse9 .cse26 .cse3) (and .cse0 .cse2 .cse3 .cse4 (let ((.cse27 (<= ~a29~0 140))) (or (and .cse24 (or (and .cse27 .cse21 .cse17) (and .cse1 .cse5))) (and .cse25 .cse27 .cse21)))) (and (or (and (<= ~a29~0 275) .cse15 .cse28 .cse29) (and .cse18 (<= 10250 ~a29~0) .cse12)) .cse2 .cse3) (and .cse18 .cse15 (<= 256 ~a29~0) .cse16 .cse2 .cse17 .cse3) (and .cse20 (or (and .cse14 .cse21 .cse2 .cse9 .cse3 .cse30) (and .cse15 .cse14 .cse10 .cse2 .cse9 .cse3 .cse30))) (and .cse15 .cse16 .cse13 .cse2 .cse3 .cse30 .cse29) (and .cse18 .cse25 .cse16 .cse2 .cse3 .cse30 .cse31) (and .cse18 (<= ~a25~0 10) .cse9) (and .cse7 .cse11 .cse2 .cse9 .cse22 .cse23 .cse3) (and .cse0 .cse15 .cse25 .cse1 .cse2 .cse3 .cse29 .cse6) (and .cse21 (<= 0 (+ ~a23~0 599908)) .cse2 .cse9 .cse26 .cse3 (<= 99915 ~a29~0)) (and .cse7 .cse28 .cse8 .cse2 .cse9 .cse3) (and .cse20 .cse14 .cse2 .cse9 .cse3 .cse31 (<= 13 ~a25~0)) (and .cse2 .cse9 .cse26 .cse12 .cse3) (and .cse20 .cse2 .cse9 .cse3 .cse5) (and .cse15 .cse25 (or (< ~a23~0 307) (< ~a29~0 278)) .cse2 .cse9 .cse26 .cse3)))) [2023-12-20 16:46:02,683 INFO L899 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,683 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,683 INFO L899 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,683 INFO L899 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,683 INFO L899 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,683 INFO L899 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,683 INFO L899 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,683 INFO L899 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,683 INFO L899 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2023-12-20 16:46:02,683 INFO L899 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2023-12-20 16:46:02,683 INFO L899 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2023-12-20 16:46:02,683 INFO L899 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2023-12-20 16:46:02,683 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,683 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,683 INFO L899 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,684 INFO L899 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,684 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,684 INFO L899 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,684 INFO L899 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,684 INFO L899 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,684 INFO L899 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,684 INFO L899 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,684 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-20 16:46:02,685 INFO L899 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2023-12-20 16:46:02,685 INFO L899 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,685 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,685 INFO L899 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,685 INFO L899 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,685 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,685 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,685 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,685 INFO L899 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,685 INFO L899 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,685 INFO L899 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2023-12-20 16:46:02,685 INFO L899 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2023-12-20 16:46:02,685 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,685 INFO L899 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,686 INFO L899 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,686 INFO L899 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,686 INFO L899 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,686 INFO L899 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,686 INFO L899 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2023-12-20 16:46:02,686 INFO L899 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2023-12-20 16:46:02,686 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,686 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,686 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 166) no Hoare annotation was computed. [2023-12-20 16:46:02,686 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,686 INFO L899 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,686 INFO L899 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,686 INFO L899 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,686 INFO L899 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,687 INFO L899 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,687 INFO L899 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,687 INFO L899 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2023-12-20 16:46:02,687 INFO L899 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2023-12-20 16:46:02,687 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2023-12-20 16:46:02,687 INFO L899 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2023-12-20 16:46:02,687 INFO L899 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,687 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,687 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2023-12-20 16:46:02,687 INFO L899 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2023-12-20 16:46:02,687 INFO L899 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,687 INFO L899 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,687 INFO L899 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,687 INFO L899 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,687 INFO L899 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,688 INFO L899 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,688 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,688 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,688 INFO L899 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,688 INFO L899 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,688 INFO L899 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,688 INFO L899 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,688 INFO L899 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,688 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,688 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,688 INFO L899 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,688 INFO L899 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,688 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,688 INFO L899 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,689 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,689 INFO L899 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,689 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,689 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,689 INFO L899 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,689 INFO L899 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,689 INFO L899 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,689 INFO L899 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,689 INFO L899 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,689 INFO L899 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,689 INFO L899 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,689 INFO L899 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2023-12-20 16:46:02,689 INFO L899 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2023-12-20 16:46:02,689 INFO L899 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,689 INFO L899 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,690 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,690 INFO L899 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,690 INFO L899 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,690 INFO L899 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,690 INFO L899 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,690 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,690 INFO L899 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,690 INFO L899 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,690 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2023-12-20 16:46:02,690 INFO L899 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2023-12-20 16:46:02,690 INFO L899 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,690 INFO L899 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,690 INFO L899 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,690 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,690 INFO L899 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,691 INFO L899 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,691 INFO L899 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,691 INFO L899 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2023-12-20 16:46:02,691 INFO L899 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2023-12-20 16:46:02,691 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,691 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,691 INFO L899 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,691 INFO L899 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,691 INFO L899 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,691 INFO L899 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,691 INFO L899 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2023-12-20 16:46:02,691 INFO L899 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2023-12-20 16:46:02,691 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,691 INFO L899 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,691 INFO L899 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,692 INFO L899 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,692 INFO L899 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,692 INFO L899 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,692 INFO L899 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,692 INFO L899 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,692 INFO L899 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2023-12-20 16:46:02,692 INFO L899 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2023-12-20 16:46:02,692 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2023-12-20 16:46:02,692 INFO L899 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2023-12-20 16:46:02,692 INFO L899 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,692 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,692 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,692 INFO L899 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,692 INFO L899 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,692 INFO L899 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,693 INFO L899 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,693 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-20 16:46:02,693 INFO L899 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,693 INFO L899 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,693 INFO L899 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,693 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,693 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,693 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,693 INFO L899 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,693 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,693 INFO L899 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,693 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,693 INFO L899 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,693 INFO L899 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,693 INFO L899 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,694 INFO L899 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,694 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2023-12-20 16:46:02,694 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2023-12-20 16:46:02,694 INFO L899 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,694 INFO L899 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,694 INFO L899 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2023-12-20 16:46:02,694 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2023-12-20 16:46:02,699 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 16:46:02,701 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 16:46:02,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 04:46:02 BoogieIcfgContainer [2023-12-20 16:46:02,734 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 16:46:02,735 INFO L158 Benchmark]: Toolchain (without parser) took 246010.93ms. Allocated memory was 323.0MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 270.1MB in the beginning and 1.1GB in the end (delta: -792.4MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-12-20 16:46:02,735 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 208.7MB. Free memory is still 160.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 16:46:02,735 INFO L158 Benchmark]: CACSL2BoogieTranslator took 616.50ms. Allocated memory is still 323.0MB. Free memory was 269.7MB in the beginning and 280.0MB in the end (delta: -10.2MB). Peak memory consumption was 48.8MB. Max. memory is 8.0GB. [2023-12-20 16:46:02,735 INFO L158 Benchmark]: Boogie Procedure Inliner took 131.42ms. Allocated memory is still 323.0MB. Free memory was 280.0MB in the beginning and 262.7MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-20 16:46:02,735 INFO L158 Benchmark]: Boogie Preprocessor took 209.21ms. Allocated memory is still 323.0MB. Free memory was 262.7MB in the beginning and 237.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-20 16:46:02,736 INFO L158 Benchmark]: RCFGBuilder took 1686.19ms. Allocated memory is still 323.0MB. Free memory was 237.5MB in the beginning and 162.9MB in the end (delta: 74.6MB). Peak memory consumption was 74.6MB. Max. memory is 8.0GB. [2023-12-20 16:46:02,736 INFO L158 Benchmark]: TraceAbstraction took 243358.28ms. Allocated memory was 323.0MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 162.4MB in the beginning and 1.1GB in the end (delta: -900.1MB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2023-12-20 16:46:02,739 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 208.7MB. Free memory is still 160.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 616.50ms. Allocated memory is still 323.0MB. Free memory was 269.7MB in the beginning and 280.0MB in the end (delta: -10.2MB). Peak memory consumption was 48.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 131.42ms. Allocated memory is still 323.0MB. Free memory was 280.0MB in the beginning and 262.7MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 209.21ms. Allocated memory is still 323.0MB. Free memory was 262.7MB in the beginning and 237.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1686.19ms. Allocated memory is still 323.0MB. Free memory was 237.5MB in the beginning and 162.9MB in the end (delta: 74.6MB). Peak memory consumption was 74.6MB. Max. memory is 8.0GB. * TraceAbstraction took 243358.28ms. Allocated memory was 323.0MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 162.4MB in the beginning and 1.1GB in the end (delta: -900.1MB). Peak memory consumption was 1.0GB. 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 - PositiveResult [Line: 166]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 221 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 243.3s, OverallIterations: 32, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 42.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 162.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16300 SdHoareTripleChecker+Valid, 36.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16300 mSDsluCounter, 6378 SdHoareTripleChecker+Invalid, 30.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1247 mSDsCounter, 5813 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43608 IncrementalHoareTripleChecker+Invalid, 49421 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5813 mSolverCounterUnsat, 5131 mSDtfsCounter, 43608 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7270 GetRequests, 7099 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1038 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23264occurred in iteration=21, InterpolantAutomatonStates: 187, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.6s AutomataMinimizationTime, 32 MinimizatonAttempts, 87434 StatesRemovedByMinimization, 29 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 55 NumberOfFragments, 707 HoareAnnotationTreeSize, 1 FormulaSimplifications, 7318881 FormulaSimplificationTreeSizeReduction, 151.8s HoareSimplificationTime, 1 FormulaSimplificationsInter, 102923 FormulaSimplificationTreeSizeReductionInter, 10.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 27.6s InterpolantComputationTime, 18563 NumberOfCodeBlocks, 18563 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 20711 ConstructedInterpolants, 0 QuantifiedInterpolants, 88668 SizeOfPredicates, 21 NumberOfNonLiveVariables, 6469 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 47 InterpolantComputations, 28 PerfectInterpolantSequences, 31862/35909 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((a23 + 55) <= 0) && ((a29 + 7787) <= 0)) && (a3 == 1)) && (a8 == 15)) && (0 <= (a29 + 28553))) && (a25 == 10)) && ((4 < (a29 % 15)) || ((a29 % 15) == 0))) || ((((((a25 == 13) && ((a29 + 7787) <= 0)) && (a23 <= 262)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) || ((((((a29 <= 277) && (141 <= a29)) && (a3 == 1)) && (a4 == 1)) && (a25 <= 9)) && (a8 == 15))) || ((((a29 + 7787) <= 0) && (a4 == 1)) && (a25 <= 9))) || (((((((a23 + 55) <= 0) && ((a29 + 7787) <= 0)) && (0 <= (a23 + 1253899))) && (a3 == 1)) && (a25 <= 9)) && (a8 == 15))) || (((((((307 <= a23) && (a29 <= 277)) && (141 <= a29)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (a25 == 10))) || (((((((((a23 + 55) <= 0) && (a25 == 12)) && (a29 <= 274)) && (0 <= (a23 + 1253899))) && (141 <= a29)) && (a3 == 1)) && !((a4 == 1))) && (a8 == 15))) || ((((((a25 == 13) && ((a23 + 43) <= 0)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (130 <= a29))) || (((((((a23 <= 600000) && (((a25 == 12) && (a4 == 1)) || ((a25 == 11) && (a4 == 1)))) && (141 <= a29)) && (a3 == 1)) && (a29 <= 232)) && (312 <= a23)) && (a8 == 15))) || ((((((a23 <= 600000) && (a25 < 10)) && (278 <= a29)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) || ((((((((a25 == 11) && (a29 <= 274)) && (0 <= (a23 + 1253899))) && (a3 == 1)) && ((119992 + a23) <= 0)) && (a4 == 1)) && (a8 == 15)) && (130 <= a29))) || ((((((0 <= (a23 + 599772)) && (a25 == 11)) && (a3 == 1)) && (a4 == 1)) && (a23 <= 312)) && (a8 == 15))) || ((((((a23 + 55) <= 0) && (a3 == 1)) && (a8 == 15)) && (0 <= (a29 + 28553))) && ((((119992 + a23) <= 0) && ((((a29 <= 140) && (a25 == 11)) && !((a4 == 1))) || (((a29 + 7787) <= 0) && (a25 == 10)))) || (((0 <= (a23 + 599772)) && (a29 <= 140)) && (a25 == 11))))) || (((((((a29 <= 275) && (a25 == 12)) && (261 <= a29)) && (a4 <= 0)) || ((((a23 + 43) <= 0) && (10250 <= a29)) && (a25 <= 9))) && (a3 == 1)) && (a8 == 15))) || ((((((((a23 + 43) <= 0) && (a25 == 12)) && (256 <= a29)) && (a29 <= 274)) && (a3 == 1)) && !((a4 == 1))) && (a8 == 15))) || ((a23 <= 600000) && (((((((307 <= a23) && (a25 == 11)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (246 <= a29)) || (((((((a25 == 12) && (307 <= a23)) && (a29 <= 277)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (246 <= a29))))) || (((((((a25 == 12) && (a29 <= 274)) && (0 <= (a23 + 1253899))) && (a3 == 1)) && (a8 == 15)) && (246 <= a29)) && (a4 <= 0))) || ((((((((a23 + 43) <= 0) && (0 <= (a23 + 599772))) && (a29 <= 274)) && (a3 == 1)) && (a8 == 15)) && (246 <= a29)) && ((a25 == 13) || (a25 == 12)))) || ((((a23 + 43) <= 0) && (a25 <= 10)) && (a4 == 1))) || (((((((a25 == 13) && (141 <= a29)) && (a3 == 1)) && (a4 == 1)) && (a29 <= 232)) && (312 <= a23)) && (a8 == 15))) || (((((((((a23 + 55) <= 0) && (a25 == 12)) && (0 <= (a23 + 599772))) && ((a29 + 7787) <= 0)) && (a3 == 1)) && (a8 == 15)) && (a4 <= 0)) && ((4 < (a29 % 15)) || ((a29 % 15) == 0)))) || (((((((a25 == 11) && (0 <= (a23 + 599908))) && (a3 == 1)) && (a4 == 1)) && (a23 <= 312)) && (a8 == 15)) && (99915 <= a29))) || ((((((a25 == 13) && (261 <= a29)) && (a23 <= 262)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) || (((((((a23 <= 600000) && (307 <= a23)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && ((a25 == 13) || (a25 == 12))) && (13 <= a25))) || (((((a3 == 1) && (a4 == 1)) && (a23 <= 312)) && (a25 <= 9)) && (a8 == 15))) || (((((a23 <= 600000) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (a25 == 10))) || (((((((a25 == 12) && (0 <= (a23 + 599772))) && ((a23 < 307) || (a29 < 278))) && (a3 == 1)) && (a4 == 1)) && (a23 <= 312)) && (a8 == 15))) RESULT: Ultimate proved your program to be correct! [2023-12-20 16:46:02,767 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 Received shutdown request...