/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-23.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 12:35:08,776 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 12:35:08,838 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 12:35:08,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 12:35:08,841 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 12:35:08,857 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 12:35:08,857 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 12:35:08,858 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 12:35:08,858 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 12:35:08,861 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 12:35:08,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 12:35:08,861 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 12:35:08,861 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 12:35:08,862 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 12:35:08,862 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 12:35:08,862 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 12:35:08,862 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 12:35:08,862 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 12:35:08,862 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 12:35:08,863 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 12:35:08,863 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 12:35:08,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 12:35:08,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 12:35:08,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 12:35:08,863 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 12:35:08,863 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 12:35:08,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 12:35:08,864 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 12:35:08,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 12:35:08,864 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 12:35:08,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 12:35:08,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 12:35:08,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 12:35:08,865 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 12:35:08,865 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 12:35:08,865 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 12:35:08,866 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 12:35:08,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 12:35:08,866 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 12:35:08,866 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 12:35:08,866 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 12:35:08,866 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 12:35:08,866 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 12:35:08,866 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 12:35:09,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 12:35:09,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 12:35:09,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 12:35:09,048 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 12:35:09,048 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 12:35:09,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-23.i [2023-12-19 12:35:09,982 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 12:35:10,143 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 12:35:10,143 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-23.i [2023-12-19 12:35:10,148 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60d73fdab/4923afc9338749b397b167a7f714ba92/FLAGb95b68527 [2023-12-19 12:35:10,156 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60d73fdab/4923afc9338749b397b167a7f714ba92 [2023-12-19 12:35:10,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 12:35:10,159 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 12:35:10,159 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 12:35:10,160 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 12:35:10,162 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 12:35:10,163 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 12:35:10" (1/1) ... [2023-12-19 12:35:10,163 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@280e6d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:35:10, skipping insertion in model container [2023-12-19 12:35:10,164 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 12:35:10" (1/1) ... [2023-12-19 12:35:10,177 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 12:35:10,273 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-23.i[915,928] [2023-12-19 12:35:10,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 12:35:10,297 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 12:35:10,304 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-23.i[915,928] [2023-12-19 12:35:10,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 12:35:10,327 INFO L206 MainTranslator]: Completed translation [2023-12-19 12:35:10,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:35:10 WrapperNode [2023-12-19 12:35:10,328 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 12:35:10,328 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 12:35:10,328 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 12:35:10,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 12:35:10,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:35:10" (1/1) ... [2023-12-19 12:35:10,338 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:35:10" (1/1) ... [2023-12-19 12:35:10,354 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 148 [2023-12-19 12:35:10,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 12:35:10,354 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 12:35:10,354 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 12:35:10,355 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 12:35:10,361 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:35:10" (1/1) ... [2023-12-19 12:35:10,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:35:10" (1/1) ... [2023-12-19 12:35:10,364 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:35:10" (1/1) ... [2023-12-19 12:35:10,381 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]. [2023-12-19 12:35:10,381 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:35:10" (1/1) ... [2023-12-19 12:35:10,382 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:35:10" (1/1) ... [2023-12-19 12:35:10,384 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:35:10" (1/1) ... [2023-12-19 12:35:10,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:35:10" (1/1) ... [2023-12-19 12:35:10,387 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:35:10" (1/1) ... [2023-12-19 12:35:10,388 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:35:10" (1/1) ... [2023-12-19 12:35:10,390 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 12:35:10,390 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 12:35:10,390 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 12:35:10,390 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 12:35:10,391 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:35:10" (1/1) ... [2023-12-19 12:35:10,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 12:35:10,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 12:35:10,411 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) [2023-12-19 12:35:10,413 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 [2023-12-19 12:35:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 12:35:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 12:35:10,431 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 12:35:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 12:35:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 12:35:10,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 12:35:10,477 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 12:35:10,478 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 12:35:10,657 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 12:35:10,673 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 12:35:10,673 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 12:35:10,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 12:35:10 BoogieIcfgContainer [2023-12-19 12:35:10,673 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 12:35:10,675 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 12:35:10,675 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 12:35:10,677 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 12:35:10,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 12:35:10" (1/3) ... [2023-12-19 12:35:10,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7224d266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 12:35:10, skipping insertion in model container [2023-12-19 12:35:10,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 12:35:10" (2/3) ... [2023-12-19 12:35:10,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7224d266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 12:35:10, skipping insertion in model container [2023-12-19 12:35:10,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 12:35:10" (3/3) ... [2023-12-19 12:35:10,679 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-23.i [2023-12-19 12:35:10,689 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 12:35:10,689 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 12:35:10,724 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 12:35:10,728 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;@7b8f9d19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 12:35:10,728 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 12:35:10,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 35 states have (on average 1.542857142857143) internal successors, (54), 36 states have internal predecessors, (54), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 12:35:10,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-19 12:35:10,737 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:10,737 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:10,738 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:10,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:10,741 INFO L85 PathProgramCache]: Analyzing trace with hash -626316995, now seen corresponding path program 1 times [2023-12-19 12:35:10,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:10,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952151898] [2023-12-19 12:35:10,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:10,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:10,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:10,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:10,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:10,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:10,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:10,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:10,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:10,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:10,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:10,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:10,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:10,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:10,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:10,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:10,945 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 12:35:10,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:10,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952151898] [2023-12-19 12:35:10,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952151898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:35:10,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:35:10,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 12:35:10,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700593660] [2023-12-19 12:35:10,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:35:10,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 12:35:10,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:10,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 12:35:10,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 12:35:10,973 INFO L87 Difference]: Start difference. First operand has 52 states, 35 states have (on average 1.542857142857143) internal successors, (54), 36 states have internal predecessors, (54), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-19 12:35:11,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:11,014 INFO L93 Difference]: Finished difference Result 101 states and 176 transitions. [2023-12-19 12:35:11,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 12:35:11,019 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 85 [2023-12-19 12:35:11,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:11,024 INFO L225 Difference]: With dead ends: 101 [2023-12-19 12:35:11,024 INFO L226 Difference]: Without dead ends: 50 [2023-12-19 12:35:11,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 12:35:11,028 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:11,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 12:35:11,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-12-19 12:35:11,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-12-19 12:35:11,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 34 states have internal predecessors, (49), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 12:35:11,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 77 transitions. [2023-12-19 12:35:11,058 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 77 transitions. Word has length 85 [2023-12-19 12:35:11,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:11,058 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 77 transitions. [2023-12-19 12:35:11,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-19 12:35:11,058 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 77 transitions. [2023-12-19 12:35:11,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-19 12:35:11,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:11,061 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:11,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 12:35:11,064 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:11,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:11,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1314584579, now seen corresponding path program 1 times [2023-12-19 12:35:11,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:11,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462119021] [2023-12-19 12:35:11,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:11,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:11,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:11,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,564 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 12:35:11,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:11,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462119021] [2023-12-19 12:35:11,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462119021] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:35:11,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:35:11,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 12:35:11,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306109078] [2023-12-19 12:35:11,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:35:11,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 12:35:11,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:11,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 12:35:11,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 12:35:11,566 INFO L87 Difference]: Start difference. First operand 50 states and 77 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:11,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:11,628 INFO L93 Difference]: Finished difference Result 91 states and 135 transitions. [2023-12-19 12:35:11,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 12:35:11,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 85 [2023-12-19 12:35:11,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:11,630 INFO L225 Difference]: With dead ends: 91 [2023-12-19 12:35:11,630 INFO L226 Difference]: Without dead ends: 89 [2023-12-19 12:35:11,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 12:35:11,631 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 55 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:11,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 275 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 12:35:11,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-12-19 12:35:11,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2023-12-19 12:35:11,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 58 states have internal predecessors, (79), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 12:35:11,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 131 transitions. [2023-12-19 12:35:11,648 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 131 transitions. Word has length 85 [2023-12-19 12:35:11,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:11,648 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 131 transitions. [2023-12-19 12:35:11,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:11,648 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 131 transitions. [2023-12-19 12:35:11,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-19 12:35:11,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:11,654 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:11,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 12:35:11,655 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:11,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:11,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1996486636, now seen corresponding path program 1 times [2023-12-19 12:35:11,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:11,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97371604] [2023-12-19 12:35:11,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:11,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,742 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 12:35:11,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:11,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97371604] [2023-12-19 12:35:11,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97371604] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:35:11,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:35:11,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 12:35:11,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078702764] [2023-12-19 12:35:11,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:35:11,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 12:35:11,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:11,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 12:35:11,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 12:35:11,748 INFO L87 Difference]: Start difference. First operand 86 states and 131 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:11,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:11,794 INFO L93 Difference]: Finished difference Result 169 states and 253 transitions. [2023-12-19 12:35:11,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 12:35:11,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 88 [2023-12-19 12:35:11,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:11,799 INFO L225 Difference]: With dead ends: 169 [2023-12-19 12:35:11,799 INFO L226 Difference]: Without dead ends: 84 [2023-12-19 12:35:11,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 12:35:11,801 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 6 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:11,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 131 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 12:35:11,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-19 12:35:11,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 77. [2023-12-19 12:35:11,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 48 states have (on average 1.3125) internal successors, (63), 49 states have internal predecessors, (63), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 12:35:11,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 115 transitions. [2023-12-19 12:35:11,810 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 115 transitions. Word has length 88 [2023-12-19 12:35:11,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:11,810 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 115 transitions. [2023-12-19 12:35:11,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:11,810 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 115 transitions. [2023-12-19 12:35:11,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-19 12:35:11,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:11,811 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:11,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 12:35:11,811 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:11,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:11,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1783112161, now seen corresponding path program 1 times [2023-12-19 12:35:11,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:11,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560729562] [2023-12-19 12:35:11,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:11,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:11,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:11,888 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 12:35:11,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:11,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560729562] [2023-12-19 12:35:11,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560729562] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:35:11,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:35:11,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 12:35:11,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815978888] [2023-12-19 12:35:11,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:35:11,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 12:35:11,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:11,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 12:35:11,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 12:35:11,894 INFO L87 Difference]: Start difference. First operand 77 states and 115 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:11,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:11,930 INFO L93 Difference]: Finished difference Result 154 states and 230 transitions. [2023-12-19 12:35:11,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 12:35:11,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 88 [2023-12-19 12:35:11,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:11,934 INFO L225 Difference]: With dead ends: 154 [2023-12-19 12:35:11,934 INFO L226 Difference]: Without dead ends: 78 [2023-12-19 12:35:11,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 12:35:11,937 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 30 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:11,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 105 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 12:35:11,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-19 12:35:11,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 77. [2023-12-19 12:35:11,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 48 states have (on average 1.2916666666666667) internal successors, (62), 49 states have internal predecessors, (62), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 12:35:11,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 114 transitions. [2023-12-19 12:35:11,944 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 114 transitions. Word has length 88 [2023-12-19 12:35:11,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:11,944 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 114 transitions. [2023-12-19 12:35:11,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:11,944 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 114 transitions. [2023-12-19 12:35:11,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-19 12:35:11,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:11,945 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:11,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 12:35:11,946 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:11,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:11,946 INFO L85 PathProgramCache]: Analyzing trace with hash -482221176, now seen corresponding path program 1 times [2023-12-19 12:35:11,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:11,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884080575] [2023-12-19 12:35:11,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:11,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:12,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,282 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 12:35:12,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:12,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884080575] [2023-12-19 12:35:12,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884080575] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:35:12,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:35:12,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 12:35:12,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45799565] [2023-12-19 12:35:12,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:35:12,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 12:35:12,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:12,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 12:35:12,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 12:35:12,286 INFO L87 Difference]: Start difference. First operand 77 states and 114 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:12,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:12,401 INFO L93 Difference]: Finished difference Result 99 states and 142 transitions. [2023-12-19 12:35:12,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 12:35:12,402 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2023-12-19 12:35:12,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:12,403 INFO L225 Difference]: With dead ends: 99 [2023-12-19 12:35:12,404 INFO L226 Difference]: Without dead ends: 97 [2023-12-19 12:35:12,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-19 12:35:12,405 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 20 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:12,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 371 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 12:35:12,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-12-19 12:35:12,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 86. [2023-12-19 12:35:12,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 58 states have internal predecessors, (75), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 12:35:12,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 127 transitions. [2023-12-19 12:35:12,424 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 127 transitions. Word has length 91 [2023-12-19 12:35:12,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:12,424 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 127 transitions. [2023-12-19 12:35:12,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:12,425 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 127 transitions. [2023-12-19 12:35:12,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-19 12:35:12,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:12,427 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:12,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 12:35:12,427 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:12,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:12,428 INFO L85 PathProgramCache]: Analyzing trace with hash 770213103, now seen corresponding path program 1 times [2023-12-19 12:35:12,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:12,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473102694] [2023-12-19 12:35:12,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:12,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:12,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:12,614 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 12:35:12,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:12,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473102694] [2023-12-19 12:35:12,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473102694] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:35:12,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:35:12,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 12:35:12,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644697601] [2023-12-19 12:35:12,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:35:12,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 12:35:12,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:12,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 12:35:12,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 12:35:12,615 INFO L87 Difference]: Start difference. First operand 86 states and 127 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:12,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:12,765 INFO L93 Difference]: Finished difference Result 122 states and 174 transitions. [2023-12-19 12:35:12,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 12:35:12,767 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 92 [2023-12-19 12:35:12,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:12,767 INFO L225 Difference]: With dead ends: 122 [2023-12-19 12:35:12,767 INFO L226 Difference]: Without dead ends: 120 [2023-12-19 12:35:12,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-19 12:35:12,773 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 54 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:12,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 369 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 12:35:12,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-12-19 12:35:12,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 87. [2023-12-19 12:35:12,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 59 states have internal predecessors, (77), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 12:35:12,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 129 transitions. [2023-12-19 12:35:12,789 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 129 transitions. Word has length 92 [2023-12-19 12:35:12,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:12,790 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 129 transitions. [2023-12-19 12:35:12,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:12,791 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 129 transitions. [2023-12-19 12:35:12,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-19 12:35:12,793 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:12,793 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:12,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 12:35:12,793 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:12,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:12,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1450271473, now seen corresponding path program 1 times [2023-12-19 12:35:12,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:12,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686906115] [2023-12-19 12:35:12,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:12,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:13,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,109 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 12:35:13,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:13,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686906115] [2023-12-19 12:35:13,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686906115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:35:13,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:35:13,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 12:35:13,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423817243] [2023-12-19 12:35:13,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:35:13,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 12:35:13,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:13,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 12:35:13,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 12:35:13,110 INFO L87 Difference]: Start difference. First operand 87 states and 129 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:13,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:13,334 INFO L93 Difference]: Finished difference Result 122 states and 174 transitions. [2023-12-19 12:35:13,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 12:35:13,335 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 92 [2023-12-19 12:35:13,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:13,335 INFO L225 Difference]: With dead ends: 122 [2023-12-19 12:35:13,335 INFO L226 Difference]: Without dead ends: 120 [2023-12-19 12:35:13,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-12-19 12:35:13,337 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 37 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:13,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 413 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 12:35:13,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-12-19 12:35:13,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 95. [2023-12-19 12:35:13,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 67 states have internal predecessors, (90), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 12:35:13,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 142 transitions. [2023-12-19 12:35:13,346 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 142 transitions. Word has length 92 [2023-12-19 12:35:13,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:13,347 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 142 transitions. [2023-12-19 12:35:13,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:13,347 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 142 transitions. [2023-12-19 12:35:13,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-19 12:35:13,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:13,348 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:13,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 12:35:13,348 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:13,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:13,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1838993907, now seen corresponding path program 1 times [2023-12-19 12:35:13,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:13,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832690597] [2023-12-19 12:35:13,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:13,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,414 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 12:35:13,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:13,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832690597] [2023-12-19 12:35:13,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832690597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:35:13,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:35:13,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 12:35:13,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219168582] [2023-12-19 12:35:13,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:35:13,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 12:35:13,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:13,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 12:35:13,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 12:35:13,415 INFO L87 Difference]: Start difference. First operand 95 states and 142 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:13,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:13,463 INFO L93 Difference]: Finished difference Result 226 states and 338 transitions. [2023-12-19 12:35:13,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 12:35:13,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2023-12-19 12:35:13,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:13,465 INFO L225 Difference]: With dead ends: 226 [2023-12-19 12:35:13,465 INFO L226 Difference]: Without dead ends: 132 [2023-12-19 12:35:13,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-19 12:35:13,467 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 29 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:13,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 252 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 12:35:13,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-12-19 12:35:13,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 105. [2023-12-19 12:35:13,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 76 states have (on average 1.381578947368421) internal successors, (105), 77 states have internal predecessors, (105), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 12:35:13,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 157 transitions. [2023-12-19 12:35:13,474 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 157 transitions. Word has length 93 [2023-12-19 12:35:13,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:13,474 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 157 transitions. [2023-12-19 12:35:13,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:13,475 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 157 transitions. [2023-12-19 12:35:13,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-19 12:35:13,475 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:13,475 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:13,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 12:35:13,475 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:13,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:13,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1854151811, now seen corresponding path program 1 times [2023-12-19 12:35:13,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:13,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537065840] [2023-12-19 12:35:13,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:13,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,543 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 12:35:13,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:13,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537065840] [2023-12-19 12:35:13,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537065840] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:35:13,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:35:13,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 12:35:13,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755585482] [2023-12-19 12:35:13,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:35:13,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 12:35:13,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:13,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 12:35:13,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 12:35:13,545 INFO L87 Difference]: Start difference. First operand 105 states and 157 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:13,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:13,596 INFO L93 Difference]: Finished difference Result 236 states and 352 transitions. [2023-12-19 12:35:13,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 12:35:13,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2023-12-19 12:35:13,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:13,599 INFO L225 Difference]: With dead ends: 236 [2023-12-19 12:35:13,599 INFO L226 Difference]: Without dead ends: 132 [2023-12-19 12:35:13,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-19 12:35:13,600 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 36 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:13,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 290 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 12:35:13,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-12-19 12:35:13,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 114. [2023-12-19 12:35:13,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 85 states have (on average 1.4) internal successors, (119), 86 states have internal predecessors, (119), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 12:35:13,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 171 transitions. [2023-12-19 12:35:13,608 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 171 transitions. Word has length 93 [2023-12-19 12:35:13,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:13,608 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 171 transitions. [2023-12-19 12:35:13,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:13,608 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 171 transitions. [2023-12-19 12:35:13,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-19 12:35:13,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:13,609 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:13,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 12:35:13,609 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:13,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:13,610 INFO L85 PathProgramCache]: Analyzing trace with hash -2127217959, now seen corresponding path program 1 times [2023-12-19 12:35:13,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:13,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058288724] [2023-12-19 12:35:13,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:13,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,657 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 12:35:13,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:13,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058288724] [2023-12-19 12:35:13,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058288724] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:35:13,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:35:13,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 12:35:13,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276632497] [2023-12-19 12:35:13,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:35:13,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 12:35:13,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:13,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 12:35:13,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 12:35:13,659 INFO L87 Difference]: Start difference. First operand 114 states and 171 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:13,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:13,690 INFO L93 Difference]: Finished difference Result 262 states and 388 transitions. [2023-12-19 12:35:13,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 12:35:13,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2023-12-19 12:35:13,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:13,691 INFO L225 Difference]: With dead ends: 262 [2023-12-19 12:35:13,691 INFO L226 Difference]: Without dead ends: 149 [2023-12-19 12:35:13,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 12:35:13,692 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 35 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:13,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 138 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 12:35:13,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-12-19 12:35:13,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 143. [2023-12-19 12:35:13,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 107 states have (on average 1.3271028037383177) internal successors, (142), 109 states have internal predecessors, (142), 32 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-19 12:35:13,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 206 transitions. [2023-12-19 12:35:13,701 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 206 transitions. Word has length 94 [2023-12-19 12:35:13,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:13,703 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 206 transitions. [2023-12-19 12:35:13,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:13,704 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 206 transitions. [2023-12-19 12:35:13,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-19 12:35:13,704 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:13,704 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:13,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 12:35:13,704 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:13,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:13,705 INFO L85 PathProgramCache]: Analyzing trace with hash 868482793, now seen corresponding path program 1 times [2023-12-19 12:35:13,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:13,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48668020] [2023-12-19 12:35:13,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:13,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:13,754 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 12:35:13,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:13,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48668020] [2023-12-19 12:35:13,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48668020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:35:13,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:35:13,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 12:35:13,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990054216] [2023-12-19 12:35:13,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:35:13,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 12:35:13,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:13,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 12:35:13,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 12:35:13,755 INFO L87 Difference]: Start difference. First operand 143 states and 206 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:13,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:13,787 INFO L93 Difference]: Finished difference Result 295 states and 419 transitions. [2023-12-19 12:35:13,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 12:35:13,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2023-12-19 12:35:13,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:13,789 INFO L225 Difference]: With dead ends: 295 [2023-12-19 12:35:13,789 INFO L226 Difference]: Without dead ends: 153 [2023-12-19 12:35:13,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 12:35:13,789 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 42 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:13,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 126 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 12:35:13,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-12-19 12:35:13,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 128. [2023-12-19 12:35:13,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 91 states have (on average 1.2527472527472527) internal successors, (114), 93 states have internal predecessors, (114), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-19 12:35:13,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 178 transitions. [2023-12-19 12:35:13,796 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 178 transitions. Word has length 94 [2023-12-19 12:35:13,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:13,796 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 178 transitions. [2023-12-19 12:35:13,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:13,796 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 178 transitions. [2023-12-19 12:35:13,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-19 12:35:13,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:13,797 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:13,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 12:35:13,797 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:13,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:13,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1968613544, now seen corresponding path program 1 times [2023-12-19 12:35:13,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:13,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129683823] [2023-12-19 12:35:13,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:13,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,131 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 12:35:14,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:14,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129683823] [2023-12-19 12:35:14,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129683823] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:35:14,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:35:14,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 12:35:14,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996786346] [2023-12-19 12:35:14,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:35:14,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 12:35:14,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:14,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 12:35:14,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 12:35:14,132 INFO L87 Difference]: Start difference. First operand 128 states and 178 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:14,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:14,322 INFO L93 Difference]: Finished difference Result 155 states and 205 transitions. [2023-12-19 12:35:14,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 12:35:14,323 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 95 [2023-12-19 12:35:14,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:14,324 INFO L225 Difference]: With dead ends: 155 [2023-12-19 12:35:14,324 INFO L226 Difference]: Without dead ends: 153 [2023-12-19 12:35:14,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-12-19 12:35:14,324 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 22 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:14,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 487 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 12:35:14,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-12-19 12:35:14,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 149. [2023-12-19 12:35:14,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 108 states have (on average 1.212962962962963) internal successors, (131), 111 states have internal predecessors, (131), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-19 12:35:14,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 199 transitions. [2023-12-19 12:35:14,335 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 199 transitions. Word has length 95 [2023-12-19 12:35:14,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:14,335 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 199 transitions. [2023-12-19 12:35:14,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:14,335 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 199 transitions. [2023-12-19 12:35:14,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-19 12:35:14,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:14,336 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:14,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 12:35:14,336 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:14,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:14,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1734232699, now seen corresponding path program 1 times [2023-12-19 12:35:14,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:14,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362113576] [2023-12-19 12:35:14,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:14,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,519 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 12:35:14,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:14,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362113576] [2023-12-19 12:35:14,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362113576] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:35:14,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:35:14,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 12:35:14,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395765824] [2023-12-19 12:35:14,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:35:14,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 12:35:14,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:14,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 12:35:14,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-19 12:35:14,522 INFO L87 Difference]: Start difference. First operand 149 states and 199 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:14,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:14,683 INFO L93 Difference]: Finished difference Result 184 states and 236 transitions. [2023-12-19 12:35:14,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 12:35:14,683 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 96 [2023-12-19 12:35:14,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:14,684 INFO L225 Difference]: With dead ends: 184 [2023-12-19 12:35:14,684 INFO L226 Difference]: Without dead ends: 182 [2023-12-19 12:35:14,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-12-19 12:35:14,685 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 49 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:14,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 549 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 12:35:14,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-12-19 12:35:14,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 153. [2023-12-19 12:35:14,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 115 states have internal predecessors, (136), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-19 12:35:14,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 204 transitions. [2023-12-19 12:35:14,696 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 204 transitions. Word has length 96 [2023-12-19 12:35:14,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:14,698 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 204 transitions. [2023-12-19 12:35:14,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:14,698 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 204 transitions. [2023-12-19 12:35:14,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-19 12:35:14,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:14,699 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:14,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 12:35:14,699 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:14,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:14,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1033168121, now seen corresponding path program 1 times [2023-12-19 12:35:14,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:14,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823303389] [2023-12-19 12:35:14,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:14,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:14,985 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 12:35:14,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:14,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823303389] [2023-12-19 12:35:14,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823303389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:35:14,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:35:14,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 12:35:14,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482959730] [2023-12-19 12:35:14,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:35:14,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 12:35:14,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:14,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 12:35:14,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-19 12:35:14,986 INFO L87 Difference]: Start difference. First operand 153 states and 204 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:15,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:15,191 INFO L93 Difference]: Finished difference Result 187 states and 241 transitions. [2023-12-19 12:35:15,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 12:35:15,191 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 96 [2023-12-19 12:35:15,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:15,192 INFO L225 Difference]: With dead ends: 187 [2023-12-19 12:35:15,192 INFO L226 Difference]: Without dead ends: 185 [2023-12-19 12:35:15,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-12-19 12:35:15,193 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 43 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:15,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 591 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 12:35:15,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-12-19 12:35:15,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 144. [2023-12-19 12:35:15,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 103 states have (on average 1.2233009708737863) internal successors, (126), 106 states have internal predecessors, (126), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-19 12:35:15,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 194 transitions. [2023-12-19 12:35:15,214 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 194 transitions. Word has length 96 [2023-12-19 12:35:15,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:15,214 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 194 transitions. [2023-12-19 12:35:15,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:15,214 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 194 transitions. [2023-12-19 12:35:15,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-19 12:35:15,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:15,215 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:15,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 12:35:15,215 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:15,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:15,215 INFO L85 PathProgramCache]: Analyzing trace with hash -515792257, now seen corresponding path program 1 times [2023-12-19 12:35:15,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:15,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095460238] [2023-12-19 12:35:15,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:15,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,274 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 12:35:15,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:15,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095460238] [2023-12-19 12:35:15,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095460238] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:35:15,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:35:15,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 12:35:15,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586450678] [2023-12-19 12:35:15,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:35:15,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 12:35:15,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:15,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 12:35:15,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 12:35:15,276 INFO L87 Difference]: Start difference. First operand 144 states and 194 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:15,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:15,353 INFO L93 Difference]: Finished difference Result 311 states and 420 transitions. [2023-12-19 12:35:15,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 12:35:15,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 96 [2023-12-19 12:35:15,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:15,355 INFO L225 Difference]: With dead ends: 311 [2023-12-19 12:35:15,355 INFO L226 Difference]: Without dead ends: 185 [2023-12-19 12:35:15,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 12:35:15,355 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 27 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:15,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 217 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 12:35:15,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-12-19 12:35:15,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 155. [2023-12-19 12:35:15,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 114 states have (on average 1.2456140350877194) internal successors, (142), 117 states have internal predecessors, (142), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-19 12:35:15,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 210 transitions. [2023-12-19 12:35:15,364 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 210 transitions. Word has length 96 [2023-12-19 12:35:15,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:15,364 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 210 transitions. [2023-12-19 12:35:15,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:15,364 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 210 transitions. [2023-12-19 12:35:15,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-19 12:35:15,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:15,365 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:15,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 12:35:15,365 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:15,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:15,365 INFO L85 PathProgramCache]: Analyzing trace with hash 164266113, now seen corresponding path program 1 times [2023-12-19 12:35:15,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:15,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801403748] [2023-12-19 12:35:15,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:15,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,396 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 12:35:15,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:15,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801403748] [2023-12-19 12:35:15,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801403748] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:35:15,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:35:15,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 12:35:15,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917122473] [2023-12-19 12:35:15,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:35:15,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 12:35:15,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:15,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 12:35:15,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 12:35:15,397 INFO L87 Difference]: Start difference. First operand 155 states and 210 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:15,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:15,433 INFO L93 Difference]: Finished difference Result 334 states and 454 transitions. [2023-12-19 12:35:15,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 12:35:15,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 96 [2023-12-19 12:35:15,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:15,434 INFO L225 Difference]: With dead ends: 334 [2023-12-19 12:35:15,434 INFO L226 Difference]: Without dead ends: 197 [2023-12-19 12:35:15,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 12:35:15,435 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 37 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:15,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 147 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 12:35:15,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-12-19 12:35:15,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 167. [2023-12-19 12:35:15,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 126 states have (on average 1.246031746031746) internal successors, (157), 129 states have internal predecessors, (157), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-19 12:35:15,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 225 transitions. [2023-12-19 12:35:15,444 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 225 transitions. Word has length 96 [2023-12-19 12:35:15,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:15,444 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 225 transitions. [2023-12-19 12:35:15,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:15,444 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 225 transitions. [2023-12-19 12:35:15,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-19 12:35:15,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:15,445 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:15,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 12:35:15,445 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:15,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:15,445 INFO L85 PathProgramCache]: Analyzing trace with hash -23176785, now seen corresponding path program 1 times [2023-12-19 12:35:15,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:15,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982987704] [2023-12-19 12:35:15,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:15,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,489 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 12:35:15,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:15,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982987704] [2023-12-19 12:35:15,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982987704] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:35:15,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:35:15,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 12:35:15,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312675872] [2023-12-19 12:35:15,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:35:15,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 12:35:15,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:15,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 12:35:15,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 12:35:15,490 INFO L87 Difference]: Start difference. First operand 167 states and 225 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:15,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:15,573 INFO L93 Difference]: Finished difference Result 338 states and 453 transitions. [2023-12-19 12:35:15,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 12:35:15,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 96 [2023-12-19 12:35:15,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:15,574 INFO L225 Difference]: With dead ends: 338 [2023-12-19 12:35:15,574 INFO L226 Difference]: Without dead ends: 189 [2023-12-19 12:35:15,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 12:35:15,574 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 25 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:15,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 234 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 12:35:15,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-12-19 12:35:15,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 175. [2023-12-19 12:35:15,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 134 states have (on average 1.2462686567164178) internal successors, (167), 137 states have internal predecessors, (167), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-19 12:35:15,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 235 transitions. [2023-12-19 12:35:15,583 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 235 transitions. Word has length 96 [2023-12-19 12:35:15,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:15,583 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 235 transitions. [2023-12-19 12:35:15,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:15,584 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 235 transitions. [2023-12-19 12:35:15,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-19 12:35:15,584 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:15,584 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:15,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 12:35:15,584 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:15,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:15,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1795655935, now seen corresponding path program 1 times [2023-12-19 12:35:15,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:15,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013315552] [2023-12-19 12:35:15,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:15,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,616 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 12:35:15,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:15,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013315552] [2023-12-19 12:35:15,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013315552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 12:35:15,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 12:35:15,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 12:35:15,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666651319] [2023-12-19 12:35:15,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 12:35:15,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 12:35:15,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:15,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 12:35:15,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 12:35:15,617 INFO L87 Difference]: Start difference. First operand 175 states and 235 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:15,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:15,651 INFO L93 Difference]: Finished difference Result 345 states and 461 transitions. [2023-12-19 12:35:15,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 12:35:15,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 96 [2023-12-19 12:35:15,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:15,652 INFO L225 Difference]: With dead ends: 345 [2023-12-19 12:35:15,652 INFO L226 Difference]: Without dead ends: 188 [2023-12-19 12:35:15,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 12:35:15,653 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 37 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:15,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 131 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 12:35:15,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-12-19 12:35:15,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 163. [2023-12-19 12:35:15,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 122 states have (on average 1.180327868852459) internal successors, (144), 125 states have internal predecessors, (144), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-19 12:35:15,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 212 transitions. [2023-12-19 12:35:15,662 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 212 transitions. Word has length 96 [2023-12-19 12:35:15,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:15,662 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 212 transitions. [2023-12-19 12:35:15,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 12:35:15,662 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 212 transitions. [2023-12-19 12:35:15,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-19 12:35:15,663 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 12:35:15,663 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:15,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-19 12:35:15,663 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 12:35:15,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 12:35:15,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1058339263, now seen corresponding path program 1 times [2023-12-19 12:35:15,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 12:35:15,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492218789] [2023-12-19 12:35:15,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:15,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 12:35:15,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 12:35:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 12:35:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 12:35:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 12:35:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 12:35:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 12:35:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 12:35:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 12:35:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 12:35:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 12:35:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 12:35:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 12:35:15,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 12:35:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 12:35:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,908 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-19 12:35:15,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 12:35:15,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492218789] [2023-12-19 12:35:15,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492218789] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 12:35:15,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342735882] [2023-12-19 12:35:15,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 12:35:15,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:35:15,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 12:35:15,911 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) [2023-12-19 12:35:15,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 12:35:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 12:35:15,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-19 12:35:15,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 12:35:16,192 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 144 proven. 12 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2023-12-19 12:35:16,192 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 12:35:16,387 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-19 12:35:16,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342735882] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 12:35:16,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 12:35:16,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2023-12-19 12:35:16,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940270930] [2023-12-19 12:35:16,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 12:35:16,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-19 12:35:16,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 12:35:16,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-19 12:35:16,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-12-19 12:35:16,390 INFO L87 Difference]: Start difference. First operand 163 states and 212 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 12:35:16,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 12:35:16,676 INFO L93 Difference]: Finished difference Result 266 states and 327 transitions. [2023-12-19 12:35:16,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-19 12:35:16,677 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 96 [2023-12-19 12:35:16,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 12:35:16,677 INFO L225 Difference]: With dead ends: 266 [2023-12-19 12:35:16,677 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 12:35:16,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 212 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2023-12-19 12:35:16,678 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 166 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 12:35:16,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 366 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 12:35:16,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 12:35:16,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 12:35:16,679 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) [2023-12-19 12:35:16,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 12:35:16,679 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96 [2023-12-19 12:35:16,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 12:35:16,679 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 12:35:16,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 12:35:16,679 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 12:35:16,679 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 12:35:16,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 12:35:16,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 12:35:16,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 12:35:16,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 12:35:18,653 INFO L895 garLoopResultBuilder]: At program point L52(line 52) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-12-19 12:35:18,653 INFO L895 garLoopResultBuilder]: At program point L52-1(line 52) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-12-19 12:35:18,653 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-19 12:35:18,653 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-19 12:35:18,653 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-19 12:35:18,653 INFO L895 garLoopResultBuilder]: At program point L61(line 61) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-12-19 12:35:18,653 INFO L895 garLoopResultBuilder]: At program point L61-1(line 61) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-12-19 12:35:18,653 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-12-19 12:35:18,653 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2023-12-19 12:35:18,653 INFO L895 garLoopResultBuilder]: At program point L79-2(lines 79 85) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0) (<= (+ ~var_1_3~0 1) ~var_1_2~0))) [2023-12-19 12:35:18,653 INFO L899 garLoopResultBuilder]: For program point L79-3(lines 79 85) no Hoare annotation was computed. [2023-12-19 12:35:18,653 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 12:35:18,653 INFO L895 garLoopResultBuilder]: At program point L55(line 55) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-12-19 12:35:18,654 INFO L895 garLoopResultBuilder]: At program point L55-1(line 55) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-12-19 12:35:18,654 INFO L902 garLoopResultBuilder]: At program point L64(line 64) the Hoare annotation is: true [2023-12-19 12:35:18,654 INFO L902 garLoopResultBuilder]: At program point L64-1(line 64) the Hoare annotation is: true [2023-12-19 12:35:18,654 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2023-12-19 12:35:18,654 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-12-19 12:35:18,654 INFO L899 garLoopResultBuilder]: For program point L73-1(line 73) no Hoare annotation was computed. [2023-12-19 12:35:18,654 INFO L899 garLoopResultBuilder]: For program point L73-3(line 73) no Hoare annotation was computed. [2023-12-19 12:35:18,654 INFO L899 garLoopResultBuilder]: For program point L73-5(line 73) no Hoare annotation was computed. [2023-12-19 12:35:18,654 INFO L899 garLoopResultBuilder]: For program point L73-7(line 73) no Hoare annotation was computed. [2023-12-19 12:35:18,654 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2023-12-19 12:35:18,654 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 46) no Hoare annotation was computed. [2023-12-19 12:35:18,654 INFO L899 garLoopResultBuilder]: For program point L73-9(line 73) no Hoare annotation was computed. [2023-12-19 12:35:18,654 INFO L899 garLoopResultBuilder]: For program point L73-11(line 73) no Hoare annotation was computed. [2023-12-19 12:35:18,654 INFO L899 garLoopResultBuilder]: For program point L73-12(line 73) no Hoare annotation was computed. [2023-12-19 12:35:18,654 INFO L899 garLoopResultBuilder]: For program point L73-14(line 73) no Hoare annotation was computed. [2023-12-19 12:35:18,654 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-19 12:35:18,654 INFO L895 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-12-19 12:35:18,654 INFO L895 garLoopResultBuilder]: At program point L49-1(line 49) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-12-19 12:35:18,654 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 45) no Hoare annotation was computed. [2023-12-19 12:35:18,654 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 12:35:18,654 INFO L895 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-12-19 12:35:18,655 INFO L895 garLoopResultBuilder]: At program point L58-1(line 58) the Hoare annotation is: (or (and (= ~var_1_1~0 ~var_1_8~0) (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256))) (and (= (mod ~var_1_7~0 256) 0) (= (mod ~var_1_1~0 256) 0))) [2023-12-19 12:35:18,655 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-12-19 12:35:18,655 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256)) [2023-12-19 12:35:18,655 INFO L895 garLoopResultBuilder]: At program point L67-1(line 67) the Hoare annotation is: (= ~var_1_7~0 (* (div ~var_1_7~0 256) 256)) [2023-12-19 12:35:18,655 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2023-12-19 12:35:18,655 INFO L899 garLoopResultBuilder]: For program point L34-2(line 34) no Hoare annotation was computed. [2023-12-19 12:35:18,655 INFO L899 garLoopResultBuilder]: For program point L34-4(line 34) no Hoare annotation was computed. [2023-12-19 12:35:18,655 INFO L899 garLoopResultBuilder]: For program point L34-6(line 34) no Hoare annotation was computed. [2023-12-19 12:35:18,655 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2023-12-19 12:35:18,655 INFO L899 garLoopResultBuilder]: For program point L34-8(line 34) no Hoare annotation was computed. [2023-12-19 12:35:18,655 INFO L899 garLoopResultBuilder]: For program point L34-10(line 34) no Hoare annotation was computed. [2023-12-19 12:35:18,655 INFO L899 garLoopResultBuilder]: For program point L34-11(lines 34 42) no Hoare annotation was computed. [2023-12-19 12:35:18,655 INFO L899 garLoopResultBuilder]: For program point L68(lines 47 69) no Hoare annotation was computed. [2023-12-19 12:35:18,655 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 39) no Hoare annotation was computed. [2023-12-19 12:35:18,655 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-19 12:35:18,655 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-19 12:35:18,655 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-19 12:35:18,655 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-19 12:35:18,657 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 12:35:18,658 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 12:35:18,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 12:35:18 BoogieIcfgContainer [2023-12-19 12:35:18,665 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 12:35:18,665 INFO L158 Benchmark]: Toolchain (without parser) took 8506.55ms. Allocated memory was 222.3MB in the beginning and 503.3MB in the end (delta: 281.0MB). Free memory was 183.1MB in the beginning and 438.9MB in the end (delta: -255.9MB). Peak memory consumption was 289.4MB. Max. memory is 8.0GB. [2023-12-19 12:35:18,665 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 222.3MB. Free memory is still 170.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 12:35:18,665 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.29ms. Allocated memory is still 222.3MB. Free memory was 183.1MB in the beginning and 170.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-19 12:35:18,666 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.74ms. Allocated memory is still 222.3MB. Free memory was 170.9MB in the beginning and 168.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 12:35:18,666 INFO L158 Benchmark]: Boogie Preprocessor took 35.22ms. Allocated memory is still 222.3MB. Free memory was 168.8MB in the beginning and 166.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 12:35:18,666 INFO L158 Benchmark]: RCFGBuilder took 283.45ms. Allocated memory is still 222.3MB. Free memory was 166.7MB in the beginning and 149.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-19 12:35:18,666 INFO L158 Benchmark]: TraceAbstraction took 7989.95ms. Allocated memory was 222.3MB in the beginning and 503.3MB in the end (delta: 281.0MB). Free memory was 149.2MB in the beginning and 438.9MB in the end (delta: -289.7MB). Peak memory consumption was 255.9MB. Max. memory is 8.0GB. [2023-12-19 12:35:18,667 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 222.3MB. Free memory is still 170.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 168.29ms. Allocated memory is still 222.3MB. Free memory was 183.1MB in the beginning and 170.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.74ms. Allocated memory is still 222.3MB. Free memory was 170.9MB in the beginning and 168.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.22ms. Allocated memory is still 222.3MB. Free memory was 168.8MB in the beginning and 166.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 283.45ms. Allocated memory is still 222.3MB. Free memory was 166.7MB in the beginning and 149.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 7989.95ms. Allocated memory was 222.3MB in the beginning and 503.3MB in the end (delta: 281.0MB). Free memory was 149.2MB in the beginning and 438.9MB in the end (delta: -289.7MB). Peak memory consumption was 255.9MB. 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: 19]: 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 2 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.9s, OverallIterations: 19, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 784 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 750 mSDsluCounter, 5266 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3765 mSDsCounter, 134 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2212 IncrementalHoareTripleChecker+Invalid, 2346 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 134 mSolverCounterUnsat, 1501 mSDtfsCounter, 2212 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 895 GetRequests, 771 SyntacticMatches, 2 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175occurred in iteration=17, InterpolantAutomatonStates: 136, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 19 MinimizatonAttempts, 329 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 353 PreInvPairs, 409 NumberOfFragments, 275 HoareAnnotationTreeSize, 353 FormulaSimplifications, 154424 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 16 FormulaSimplificationsInter, 3004 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 1858 NumberOfCodeBlocks, 1858 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1933 ConstructedInterpolants, 0 QuantifiedInterpolants, 3901 SizeOfPredicates, 17 NumberOfNonLiveVariables, 229 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 21 InterpolantComputations, 18 PerfectInterpolantSequences, 7620/7644 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: 79]: Loop Invariant Derived loop invariant: (((var_1_1 == var_1_8) && (var_1_7 == ((var_1_7 / 256) * 256))) || ((((var_1_7 % 256) == 0) && ((var_1_1 % 256) == 0)) && ((var_1_3 + 1) <= var_1_2))) RESULT: Ultimate proved your program to be correct! [2023-12-19 12:35:18,679 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...