/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 11:24:46,567 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 11:24:46,638 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 11:24:46,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 11:24:46,643 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 11:24:46,671 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 11:24:46,671 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 11:24:46,671 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 11:24:46,672 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 11:24:46,672 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 11:24:46,672 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 11:24:46,672 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 11:24:46,673 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 11:24:46,673 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 11:24:46,673 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 11:24:46,673 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 11:24:46,674 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 11:24:46,674 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 11:24:46,674 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 11:24:46,674 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 11:24:46,675 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 11:24:46,678 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 11:24:46,679 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 11:24:46,679 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 11:24:46,681 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 11:24:46,682 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 11:24:46,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 11:24:46,682 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 11:24:46,683 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 11:24:46,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 11:24:46,683 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 11:24:46,683 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 11:24:46,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 11:24:46,684 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 11:24:46,684 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 11:24:46,684 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 11:24:46,684 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 11:24:46,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 11:24:46,685 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 11:24:46,685 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 11:24:46,685 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 11:24:46,685 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 11:24:46,685 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 11:24:46,685 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 11:24:46,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 11:24:46,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 11:24:46,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 11:24:46,919 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 11:24:46,920 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 11:24:46,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.BOUNDED-10.pals.c [2023-12-21 11:24:47,966 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 11:24:48,207 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 11:24:48,208 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.BOUNDED-10.pals.c [2023-12-21 11:24:48,215 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53c254a74/0b2f7565058f42d5a6a4c903478d248f/FLAG683764bbb [2023-12-21 11:24:48,224 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53c254a74/0b2f7565058f42d5a6a4c903478d248f [2023-12-21 11:24:48,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 11:24:48,227 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 11:24:48,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 11:24:48,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 11:24:48,231 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 11:24:48,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:24:48" (1/1) ... [2023-12-21 11:24:48,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cb56682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:24:48, skipping insertion in model container [2023-12-21 11:24:48,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:24:48" (1/1) ... [2023-12-21 11:24:48,255 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 11:24:48,397 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.BOUNDED-10.pals.c[12042,12055] [2023-12-21 11:24:48,408 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 11:24:48,416 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 11:24:48,479 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.BOUNDED-10.pals.c[12042,12055] [2023-12-21 11:24:48,479 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 11:24:48,490 INFO L206 MainTranslator]: Completed translation [2023-12-21 11:24:48,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:24:48 WrapperNode [2023-12-21 11:24:48,490 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 11:24:48,491 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 11:24:48,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 11:24:48,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 11:24:48,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:24:48" (1/1) ... [2023-12-21 11:24:48,509 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:24:48" (1/1) ... [2023-12-21 11:24:48,536 INFO L138 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 414 [2023-12-21 11:24:48,540 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 11:24:48,541 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 11:24:48,541 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 11:24:48,541 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 11:24:48,549 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:24:48" (1/1) ... [2023-12-21 11:24:48,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:24:48" (1/1) ... [2023-12-21 11:24:48,554 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:24:48" (1/1) ... [2023-12-21 11:24:48,571 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]. [2023-12-21 11:24:48,572 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:24:48" (1/1) ... [2023-12-21 11:24:48,572 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:24:48" (1/1) ... [2023-12-21 11:24:48,577 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:24:48" (1/1) ... [2023-12-21 11:24:48,583 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:24:48" (1/1) ... [2023-12-21 11:24:48,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:24:48" (1/1) ... [2023-12-21 11:24:48,598 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:24:48" (1/1) ... [2023-12-21 11:24:48,604 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 11:24:48,605 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 11:24:48,605 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 11:24:48,605 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 11:24:48,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:24:48" (1/1) ... [2023-12-21 11:24:48,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 11:24:48,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:24:48,628 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) [2023-12-21 11:24:48,649 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 [2023-12-21 11:24:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 11:24:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_bool [2023-12-21 11:24:48,655 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_bool [2023-12-21 11:24:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-12-21 11:24:48,655 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-12-21 11:24:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_int8 [2023-12-21 11:24:48,657 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_int8 [2023-12-21 11:24:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_bool [2023-12-21 11:24:48,657 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_bool [2023-12-21 11:24:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure add_history_type [2023-12-21 11:24:48,658 INFO L138 BoogieDeclarations]: Found implementation of procedure add_history_type [2023-12-21 11:24:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 11:24:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 11:24:48,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 11:24:48,771 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 11:24:48,773 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 11:24:49,194 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 11:24:49,222 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 11:24:49,222 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-21 11:24:49,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:24:49 BoogieIcfgContainer [2023-12-21 11:24:49,223 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 11:24:49,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 11:24:49,225 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 11:24:49,227 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 11:24:49,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:24:48" (1/3) ... [2023-12-21 11:24:49,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d85c2f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:24:49, skipping insertion in model container [2023-12-21 11:24:49,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:24:48" (2/3) ... [2023-12-21 11:24:49,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d85c2f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:24:49, skipping insertion in model container [2023-12-21 11:24:49,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:24:49" (3/3) ... [2023-12-21 11:24:49,228 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.ufo.BOUNDED-10.pals.c [2023-12-21 11:24:49,239 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 11:24:49,240 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 11:24:49,270 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 11:24:49,275 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;@335c7238, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 11:24:49,275 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 11:24:49,278 INFO L276 IsEmpty]: Start isEmpty. Operand has 172 states, 133 states have (on average 1.6240601503759398) internal successors, (216), 137 states have internal predecessors, (216), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-21 11:24:49,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-21 11:24:49,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:49,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:49,284 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:49,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:49,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1464316671, now seen corresponding path program 1 times [2023-12-21 11:24:49,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:49,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451764306] [2023-12-21 11:24:49,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:49,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:49,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:24:49,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:49,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451764306] [2023-12-21 11:24:49,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451764306] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:49,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:49,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:24:49,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884349044] [2023-12-21 11:24:49,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:49,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:49,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:49,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:49,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:24:49,475 INFO L87 Difference]: Start difference. First operand has 172 states, 133 states have (on average 1.6240601503759398) internal successors, (216), 137 states have internal predecessors, (216), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 11:24:49,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:49,546 INFO L93 Difference]: Finished difference Result 350 states and 604 transitions. [2023-12-21 11:24:49,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:49,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-12-21 11:24:49,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:49,555 INFO L225 Difference]: With dead ends: 350 [2023-12-21 11:24:49,555 INFO L226 Difference]: Without dead ends: 178 [2023-12-21 11:24:49,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:49,561 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 18 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 775 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 [2023-12-21 11:24:49,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 775 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:49,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-12-21 11:24:49,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 176. [2023-12-21 11:24:49,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 137 states have (on average 1.5547445255474452) internal successors, (213), 140 states have internal predecessors, (213), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-21 11:24:49,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 277 transitions. [2023-12-21 11:24:49,600 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 277 transitions. Word has length 14 [2023-12-21 11:24:49,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:49,601 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 277 transitions. [2023-12-21 11:24:49,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 11:24:49,601 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 277 transitions. [2023-12-21 11:24:49,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-21 11:24:49,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:49,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:49,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 11:24:49,602 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:49,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:49,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1895232951, now seen corresponding path program 1 times [2023-12-21 11:24:49,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:49,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510564362] [2023-12-21 11:24:49,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:49,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:49,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:24:49,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:49,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510564362] [2023-12-21 11:24:49,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510564362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:49,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:49,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:24:49,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890951619] [2023-12-21 11:24:49,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:49,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:49,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:49,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:49,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:24:49,647 INFO L87 Difference]: Start difference. First operand 176 states and 277 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 11:24:49,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:49,685 INFO L93 Difference]: Finished difference Result 366 states and 578 transitions. [2023-12-21 11:24:49,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:49,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-12-21 11:24:49,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:49,687 INFO L225 Difference]: With dead ends: 366 [2023-12-21 11:24:49,687 INFO L226 Difference]: Without dead ends: 192 [2023-12-21 11:24:49,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:49,689 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 25 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:49,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 792 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:49,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-12-21 11:24:49,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 189. [2023-12-21 11:24:49,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 148 states have (on average 1.5337837837837838) internal successors, (227), 151 states have internal predecessors, (227), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-21 11:24:49,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 293 transitions. [2023-12-21 11:24:49,701 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 293 transitions. Word has length 15 [2023-12-21 11:24:49,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:49,701 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 293 transitions. [2023-12-21 11:24:49,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 11:24:49,701 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 293 transitions. [2023-12-21 11:24:49,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-21 11:24:49,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:49,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:49,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 11:24:49,703 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:49,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:49,703 INFO L85 PathProgramCache]: Analyzing trace with hash -602557550, now seen corresponding path program 1 times [2023-12-21 11:24:49,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:49,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586855924] [2023-12-21 11:24:49,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:49,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:49,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:49,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:24:49,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:49,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586855924] [2023-12-21 11:24:49,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586855924] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:49,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:49,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 11:24:49,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620427143] [2023-12-21 11:24:49,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:49,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 11:24:49,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:49,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 11:24:49,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 11:24:49,756 INFO L87 Difference]: Start difference. First operand 189 states and 293 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-21 11:24:49,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:49,774 INFO L93 Difference]: Finished difference Result 398 states and 624 transitions. [2023-12-21 11:24:49,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 11:24:49,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-12-21 11:24:49,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:49,776 INFO L225 Difference]: With dead ends: 398 [2023-12-21 11:24:49,776 INFO L226 Difference]: Without dead ends: 218 [2023-12-21 11:24:49,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 11:24:49,777 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 22 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:49,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 532 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:49,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-12-21 11:24:49,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 191. [2023-12-21 11:24:49,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 150 states have (on average 1.5266666666666666) internal successors, (229), 153 states have internal predecessors, (229), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-21 11:24:49,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 295 transitions. [2023-12-21 11:24:49,788 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 295 transitions. Word has length 22 [2023-12-21 11:24:49,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:49,788 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 295 transitions. [2023-12-21 11:24:49,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-21 11:24:49,789 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 295 transitions. [2023-12-21 11:24:49,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-21 11:24:49,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:49,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:49,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 11:24:49,790 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:49,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:49,790 INFO L85 PathProgramCache]: Analyzing trace with hash -73006397, now seen corresponding path program 1 times [2023-12-21 11:24:49,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:49,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992234117] [2023-12-21 11:24:49,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:49,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:49,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:49,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:49,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:24:49,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:49,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992234117] [2023-12-21 11:24:49,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992234117] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:49,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:49,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:24:49,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119274732] [2023-12-21 11:24:49,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:49,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:49,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:49,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:49,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:24:49,842 INFO L87 Difference]: Start difference. First operand 191 states and 295 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-21 11:24:49,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:49,872 INFO L93 Difference]: Finished difference Result 429 states and 680 transitions. [2023-12-21 11:24:49,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:49,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2023-12-21 11:24:49,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:49,874 INFO L225 Difference]: With dead ends: 429 [2023-12-21 11:24:49,874 INFO L226 Difference]: Without dead ends: 288 [2023-12-21 11:24:49,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:49,875 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 121 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:49,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 788 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:49,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2023-12-21 11:24:49,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 191. [2023-12-21 11:24:49,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 150 states have (on average 1.5) internal successors, (225), 153 states have internal predecessors, (225), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-21 11:24:49,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 291 transitions. [2023-12-21 11:24:49,887 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 291 transitions. Word has length 30 [2023-12-21 11:24:49,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:49,887 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 291 transitions. [2023-12-21 11:24:49,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-21 11:24:49,888 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 291 transitions. [2023-12-21 11:24:49,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-21 11:24:49,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:49,889 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:49,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 11:24:49,889 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:49,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:49,889 INFO L85 PathProgramCache]: Analyzing trace with hash -363228684, now seen corresponding path program 1 times [2023-12-21 11:24:49,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:49,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430153311] [2023-12-21 11:24:49,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:49,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:49,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:49,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:49,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:49,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:24:49,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:49,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430153311] [2023-12-21 11:24:49,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430153311] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:49,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:49,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 11:24:49,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212435221] [2023-12-21 11:24:49,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:49,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 11:24:49,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:49,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 11:24:49,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:49,949 INFO L87 Difference]: Start difference. First operand 191 states and 291 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-21 11:24:49,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:49,973 INFO L93 Difference]: Finished difference Result 373 states and 572 transitions. [2023-12-21 11:24:49,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:49,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2023-12-21 11:24:49,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:49,974 INFO L225 Difference]: With dead ends: 373 [2023-12-21 11:24:49,975 INFO L226 Difference]: Without dead ends: 193 [2023-12-21 11:24:49,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:49,976 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 0 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:49,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1048 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:49,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-12-21 11:24:49,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 191. [2023-12-21 11:24:49,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 150 states have (on average 1.4933333333333334) internal successors, (224), 153 states have internal predecessors, (224), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-21 11:24:49,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 290 transitions. [2023-12-21 11:24:49,986 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 290 transitions. Word has length 31 [2023-12-21 11:24:49,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:49,986 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 290 transitions. [2023-12-21 11:24:49,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-21 11:24:49,987 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 290 transitions. [2023-12-21 11:24:49,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-21 11:24:49,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:49,988 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:49,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 11:24:49,988 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:49,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:49,988 INFO L85 PathProgramCache]: Analyzing trace with hash 424228152, now seen corresponding path program 1 times [2023-12-21 11:24:49,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:49,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427783634] [2023-12-21 11:24:49,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:49,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,038 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:24:50,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:50,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427783634] [2023-12-21 11:24:50,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427783634] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:24:50,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693048346] [2023-12-21 11:24:50,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:50,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:24:50,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:24:50,060 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) [2023-12-21 11:24:50,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 11:24:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 11:24:50,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:24:50,186 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:24:50,186 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 11:24:50,234 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 11:24:50,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693048346] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 11:24:50,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 11:24:50,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2023-12-21 11:24:50,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327423656] [2023-12-21 11:24:50,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 11:24:50,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 11:24:50,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:50,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 11:24:50,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:50,239 INFO L87 Difference]: Start difference. First operand 191 states and 290 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-21 11:24:50,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:50,286 INFO L93 Difference]: Finished difference Result 431 states and 668 transitions. [2023-12-21 11:24:50,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:50,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 34 [2023-12-21 11:24:50,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:50,289 INFO L225 Difference]: With dead ends: 431 [2023-12-21 11:24:50,289 INFO L226 Difference]: Without dead ends: 250 [2023-12-21 11:24:50,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:50,294 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 73 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:50,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 780 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:50,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-12-21 11:24:50,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 244. [2023-12-21 11:24:50,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 193 states have (on average 1.4663212435233162) internal successors, (283), 196 states have internal predecessors, (283), 43 states have call successors, (43), 7 states have call predecessors, (43), 7 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-21 11:24:50,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 369 transitions. [2023-12-21 11:24:50,316 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 369 transitions. Word has length 34 [2023-12-21 11:24:50,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:50,316 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 369 transitions. [2023-12-21 11:24:50,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-21 11:24:50,316 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 369 transitions. [2023-12-21 11:24:50,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-21 11:24:50,317 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:50,318 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:50,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 11:24:50,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-21 11:24:50,524 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:50,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:50,525 INFO L85 PathProgramCache]: Analyzing trace with hash 895414040, now seen corresponding path program 2 times [2023-12-21 11:24:50,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:50,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243364774] [2023-12-21 11:24:50,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:50,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,608 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 11:24:50,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:50,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243364774] [2023-12-21 11:24:50,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243364774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:50,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:50,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:24:50,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679567550] [2023-12-21 11:24:50,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:50,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:50,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:50,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:50,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:24:50,610 INFO L87 Difference]: Start difference. First operand 244 states and 369 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-21 11:24:50,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:50,657 INFO L93 Difference]: Finished difference Result 499 states and 765 transitions. [2023-12-21 11:24:50,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:50,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2023-12-21 11:24:50,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:50,659 INFO L225 Difference]: With dead ends: 499 [2023-12-21 11:24:50,659 INFO L226 Difference]: Without dead ends: 283 [2023-12-21 11:24:50,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:50,660 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 24 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:50,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 784 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:50,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-12-21 11:24:50,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 280. [2023-12-21 11:24:50,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 225 states have (on average 1.4222222222222223) internal successors, (320), 228 states have internal predecessors, (320), 46 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-21 11:24:50,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 412 transitions. [2023-12-21 11:24:50,669 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 412 transitions. Word has length 56 [2023-12-21 11:24:50,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:50,669 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 412 transitions. [2023-12-21 11:24:50,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-21 11:24:50,669 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 412 transitions. [2023-12-21 11:24:50,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-21 11:24:50,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:50,670 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:50,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 11:24:50,671 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:50,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:50,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1856324599, now seen corresponding path program 1 times [2023-12-21 11:24:50,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:50,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768496423] [2023-12-21 11:24:50,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:50,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,727 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-21 11:24:50,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:50,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768496423] [2023-12-21 11:24:50,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768496423] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:50,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:50,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:24:50,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283779556] [2023-12-21 11:24:50,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:50,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:50,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:50,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:50,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:24:50,729 INFO L87 Difference]: Start difference. First operand 280 states and 412 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-21 11:24:50,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:50,797 INFO L93 Difference]: Finished difference Result 536 states and 812 transitions. [2023-12-21 11:24:50,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:50,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2023-12-21 11:24:50,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:50,800 INFO L225 Difference]: With dead ends: 536 [2023-12-21 11:24:50,800 INFO L226 Difference]: Without dead ends: 289 [2023-12-21 11:24:50,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:50,801 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 19 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:50,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 771 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 11:24:50,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2023-12-21 11:24:50,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 287. [2023-12-21 11:24:50,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 231 states have (on average 1.41991341991342) internal successors, (328), 234 states have internal predecessors, (328), 46 states have call successors, (46), 9 states have call predecessors, (46), 9 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-21 11:24:50,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 420 transitions. [2023-12-21 11:24:50,821 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 420 transitions. Word has length 56 [2023-12-21 11:24:50,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:50,822 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 420 transitions. [2023-12-21 11:24:50,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-21 11:24:50,822 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 420 transitions. [2023-12-21 11:24:50,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-21 11:24:50,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:50,823 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:50,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 11:24:50,823 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:50,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:50,823 INFO L85 PathProgramCache]: Analyzing trace with hash 452708196, now seen corresponding path program 1 times [2023-12-21 11:24:50,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:50,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488966175] [2023-12-21 11:24:50,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:50,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,884 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-21 11:24:50,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:50,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488966175] [2023-12-21 11:24:50,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488966175] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:50,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:50,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 11:24:50,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454157987] [2023-12-21 11:24:50,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:50,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 11:24:50,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:50,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 11:24:50,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:50,885 INFO L87 Difference]: Start difference. First operand 287 states and 420 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-21 11:24:50,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:50,905 INFO L93 Difference]: Finished difference Result 524 states and 780 transitions. [2023-12-21 11:24:50,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:50,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 74 [2023-12-21 11:24:50,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:50,907 INFO L225 Difference]: With dead ends: 524 [2023-12-21 11:24:50,907 INFO L226 Difference]: Without dead ends: 289 [2023-12-21 11:24:50,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:50,908 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 0 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:50,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1047 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:50,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2023-12-21 11:24:50,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 287. [2023-12-21 11:24:50,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 231 states have (on average 1.406926406926407) internal successors, (325), 234 states have internal predecessors, (325), 46 states have call successors, (46), 9 states have call predecessors, (46), 9 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-21 11:24:50,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 417 transitions. [2023-12-21 11:24:50,919 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 417 transitions. Word has length 74 [2023-12-21 11:24:50,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:50,919 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 417 transitions. [2023-12-21 11:24:50,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-21 11:24:50,919 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 417 transitions. [2023-12-21 11:24:50,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-21 11:24:50,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:50,920 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:50,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 11:24:50,920 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:50,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:50,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1073627768, now seen corresponding path program 1 times [2023-12-21 11:24:50,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:50,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111195012] [2023-12-21 11:24:50,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:50,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:50,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:50,980 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-21 11:24:50,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:50,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111195012] [2023-12-21 11:24:50,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111195012] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:50,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:50,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:24:50,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573265780] [2023-12-21 11:24:50,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:50,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:50,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:50,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:50,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:24:50,982 INFO L87 Difference]: Start difference. First operand 287 states and 417 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-21 11:24:51,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:51,030 INFO L93 Difference]: Finished difference Result 561 states and 836 transitions. [2023-12-21 11:24:51,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:51,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 103 [2023-12-21 11:24:51,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:51,032 INFO L225 Difference]: With dead ends: 561 [2023-12-21 11:24:51,032 INFO L226 Difference]: Without dead ends: 331 [2023-12-21 11:24:51,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:51,033 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 25 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:51,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 784 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:51,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-12-21 11:24:51,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 328. [2023-12-21 11:24:51,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 268 states have (on average 1.3694029850746268) internal successors, (367), 271 states have internal predecessors, (367), 49 states have call successors, (49), 10 states have call predecessors, (49), 10 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-21 11:24:51,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 465 transitions. [2023-12-21 11:24:51,043 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 465 transitions. Word has length 103 [2023-12-21 11:24:51,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:51,043 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 465 transitions. [2023-12-21 11:24:51,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-21 11:24:51,047 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 465 transitions. [2023-12-21 11:24:51,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 11:24:51,050 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:51,051 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:51,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 11:24:51,051 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:51,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:51,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1618665253, now seen corresponding path program 1 times [2023-12-21 11:24:51,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:51,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643088084] [2023-12-21 11:24:51,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:51,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,159 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-21 11:24:51,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:51,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643088084] [2023-12-21 11:24:51,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643088084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:51,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:51,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:24:51,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328542873] [2023-12-21 11:24:51,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:51,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:51,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:51,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:51,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:24:51,161 INFO L87 Difference]: Start difference. First operand 328 states and 465 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-21 11:24:51,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:51,197 INFO L93 Difference]: Finished difference Result 587 states and 856 transitions. [2023-12-21 11:24:51,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 11:24:51,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 104 [2023-12-21 11:24:51,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:51,200 INFO L225 Difference]: With dead ends: 587 [2023-12-21 11:24:51,200 INFO L226 Difference]: Without dead ends: 322 [2023-12-21 11:24:51,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:51,202 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 15 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:51,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 744 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:51,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-12-21 11:24:51,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2023-12-21 11:24:51,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 263 states have (on average 1.349809885931559) internal successors, (355), 266 states have internal predecessors, (355), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-21 11:24:51,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 451 transitions. [2023-12-21 11:24:51,212 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 451 transitions. Word has length 104 [2023-12-21 11:24:51,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:51,213 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 451 transitions. [2023-12-21 11:24:51,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-21 11:24:51,213 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 451 transitions. [2023-12-21 11:24:51,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-21 11:24:51,214 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:51,214 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:51,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 11:24:51,214 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:51,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:51,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1079619414, now seen corresponding path program 1 times [2023-12-21 11:24:51,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:51,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406167115] [2023-12-21 11:24:51,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:51,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:51,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,323 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-12-21 11:24:51,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:51,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406167115] [2023-12-21 11:24:51,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406167115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:51,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:51,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 11:24:51,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280893058] [2023-12-21 11:24:51,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:51,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 11:24:51,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:51,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 11:24:51,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:51,325 INFO L87 Difference]: Start difference. First operand 322 states and 451 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-21 11:24:51,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:51,344 INFO L93 Difference]: Finished difference Result 562 states and 805 transitions. [2023-12-21 11:24:51,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:51,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 123 [2023-12-21 11:24:51,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:51,346 INFO L225 Difference]: With dead ends: 562 [2023-12-21 11:24:51,346 INFO L226 Difference]: Without dead ends: 324 [2023-12-21 11:24:51,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:51,347 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 0 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:51,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1031 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:51,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2023-12-21 11:24:51,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 322. [2023-12-21 11:24:51,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 263 states have (on average 1.338403041825095) internal successors, (352), 266 states have internal predecessors, (352), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-21 11:24:51,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 448 transitions. [2023-12-21 11:24:51,356 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 448 transitions. Word has length 123 [2023-12-21 11:24:51,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:51,356 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 448 transitions. [2023-12-21 11:24:51,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-21 11:24:51,356 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 448 transitions. [2023-12-21 11:24:51,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-21 11:24:51,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:51,357 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 7, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:51,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 11:24:51,357 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:51,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:51,358 INFO L85 PathProgramCache]: Analyzing trace with hash -955046142, now seen corresponding path program 1 times [2023-12-21 11:24:51,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:51,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195955655] [2023-12-21 11:24:51,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:51,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:51,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:24:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,420 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-12-21 11:24:51,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:51,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195955655] [2023-12-21 11:24:51,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195955655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:51,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:51,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:24:51,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531818359] [2023-12-21 11:24:51,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:51,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:51,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:51,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:51,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:24:51,421 INFO L87 Difference]: Start difference. First operand 322 states and 448 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-21 11:24:51,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:51,457 INFO L93 Difference]: Finished difference Result 525 states and 765 transitions. [2023-12-21 11:24:51,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 11:24:51,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 156 [2023-12-21 11:24:51,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:51,459 INFO L225 Difference]: With dead ends: 525 [2023-12-21 11:24:51,459 INFO L226 Difference]: Without dead ends: 320 [2023-12-21 11:24:51,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:51,460 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 13 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:51,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 712 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:51,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-12-21 11:24:51,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2023-12-21 11:24:51,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 262 states have (on average 1.3358778625954197) internal successors, (350), 265 states have internal predecessors, (350), 47 states have call successors, (47), 10 states have call predecessors, (47), 10 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-21 11:24:51,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 444 transitions. [2023-12-21 11:24:51,468 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 444 transitions. Word has length 156 [2023-12-21 11:24:51,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:51,468 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 444 transitions. [2023-12-21 11:24:51,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-21 11:24:51,469 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 444 transitions. [2023-12-21 11:24:51,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-21 11:24:51,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:51,470 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:51,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 11:24:51,470 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:51,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:51,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1482802370, now seen corresponding path program 1 times [2023-12-21 11:24:51,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:51,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363478782] [2023-12-21 11:24:51,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:51,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:24:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:24:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,547 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2023-12-21 11:24:51,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:51,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363478782] [2023-12-21 11:24:51,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363478782] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:51,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:51,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:24:51,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296052340] [2023-12-21 11:24:51,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:51,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:51,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:51,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:51,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:24:51,549 INFO L87 Difference]: Start difference. First operand 320 states and 444 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 11:24:51,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:51,594 INFO L93 Difference]: Finished difference Result 465 states and 661 transitions. [2023-12-21 11:24:51,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:51,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 171 [2023-12-21 11:24:51,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:51,596 INFO L225 Difference]: With dead ends: 465 [2023-12-21 11:24:51,596 INFO L226 Difference]: Without dead ends: 303 [2023-12-21 11:24:51,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:51,597 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 35 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:51,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 693 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:51,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-12-21 11:24:51,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2023-12-21 11:24:51,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 248 states have (on average 1.3266129032258065) internal successors, (329), 251 states have internal predecessors, (329), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-21 11:24:51,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 417 transitions. [2023-12-21 11:24:51,605 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 417 transitions. Word has length 171 [2023-12-21 11:24:51,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:51,605 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 417 transitions. [2023-12-21 11:24:51,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 11:24:51,606 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 417 transitions. [2023-12-21 11:24:51,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-21 11:24:51,607 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:51,607 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:51,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 11:24:51,607 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:51,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:51,607 INFO L85 PathProgramCache]: Analyzing trace with hash 520522913, now seen corresponding path program 1 times [2023-12-21 11:24:51,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:51,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825251205] [2023-12-21 11:24:51,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:51,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:24:51,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:24:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,719 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2023-12-21 11:24:51,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:51,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825251205] [2023-12-21 11:24:51,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825251205] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:51,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:51,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:24:51,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706629708] [2023-12-21 11:24:51,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:51,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:51,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:51,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:51,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:24:51,721 INFO L87 Difference]: Start difference. First operand 303 states and 417 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 11:24:51,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:51,770 INFO L93 Difference]: Finished difference Result 448 states and 634 transitions. [2023-12-21 11:24:51,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:51,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 173 [2023-12-21 11:24:51,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:51,772 INFO L225 Difference]: With dead ends: 448 [2023-12-21 11:24:51,772 INFO L226 Difference]: Without dead ends: 284 [2023-12-21 11:24:51,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:51,773 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 30 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:51,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 697 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:51,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-12-21 11:24:51,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2023-12-21 11:24:51,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 232 states have (on average 1.3189655172413792) internal successors, (306), 235 states have internal predecessors, (306), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-21 11:24:51,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 388 transitions. [2023-12-21 11:24:51,782 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 388 transitions. Word has length 173 [2023-12-21 11:24:51,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:51,782 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 388 transitions. [2023-12-21 11:24:51,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 11:24:51,782 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 388 transitions. [2023-12-21 11:24:51,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 11:24:51,783 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:51,784 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 7, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:51,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 11:24:51,784 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:51,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:51,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1655232664, now seen corresponding path program 1 times [2023-12-21 11:24:51,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:51,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911018696] [2023-12-21 11:24:51,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:51,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:51,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:51,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:51,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:24:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:24:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:24:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:51,915 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-12-21 11:24:51,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:51,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911018696] [2023-12-21 11:24:51,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911018696] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:51,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:51,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 11:24:51,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524396075] [2023-12-21 11:24:51,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:51,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 11:24:51,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:51,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 11:24:51,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:51,917 INFO L87 Difference]: Start difference. First operand 284 states and 388 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-21 11:24:51,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:51,951 INFO L93 Difference]: Finished difference Result 428 states and 604 transitions. [2023-12-21 11:24:51,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:51,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 174 [2023-12-21 11:24:51,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:51,953 INFO L225 Difference]: With dead ends: 428 [2023-12-21 11:24:51,953 INFO L226 Difference]: Without dead ends: 284 [2023-12-21 11:24:51,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:51,954 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 0 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:51,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1009 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:51,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-12-21 11:24:51,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2023-12-21 11:24:51,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 232 states have (on average 1.293103448275862) internal successors, (300), 235 states have internal predecessors, (300), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-21 11:24:51,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 382 transitions. [2023-12-21 11:24:51,967 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 382 transitions. Word has length 174 [2023-12-21 11:24:51,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:51,967 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 382 transitions. [2023-12-21 11:24:51,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-21 11:24:51,967 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 382 transitions. [2023-12-21 11:24:51,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-21 11:24:51,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:51,970 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:51,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 11:24:51,970 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:51,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:51,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1746472809, now seen corresponding path program 1 times [2023-12-21 11:24:51,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:51,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446507710] [2023-12-21 11:24:51,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:51,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:24:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:24:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,098 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-12-21 11:24:52,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:52,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446507710] [2023-12-21 11:24:52,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446507710] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:24:52,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697810554] [2023-12-21 11:24:52,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:52,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:24:52,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:24:52,099 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:24:52,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 11:24:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 11:24:52,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:24:52,254 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-12-21 11:24:52,255 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 11:24:52,347 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-12-21 11:24:52,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697810554] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 11:24:52,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-21 11:24:52,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 5 [2023-12-21 11:24:52,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969522734] [2023-12-21 11:24:52,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:52,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:52,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:52,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:52,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:52,349 INFO L87 Difference]: Start difference. First operand 284 states and 382 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-21 11:24:52,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:52,385 INFO L93 Difference]: Finished difference Result 449 states and 626 transitions. [2023-12-21 11:24:52,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 11:24:52,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 181 [2023-12-21 11:24:52,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:52,387 INFO L225 Difference]: With dead ends: 449 [2023-12-21 11:24:52,387 INFO L226 Difference]: Without dead ends: 263 [2023-12-21 11:24:52,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:52,388 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 30 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:52,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 477 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:52,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-12-21 11:24:52,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2023-12-21 11:24:52,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 214 states have (on average 1.2850467289719627) internal successors, (275), 217 states have internal predecessors, (275), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 11:24:52,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 351 transitions. [2023-12-21 11:24:52,395 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 351 transitions. Word has length 181 [2023-12-21 11:24:52,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:52,396 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 351 transitions. [2023-12-21 11:24:52,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-21 11:24:52,396 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 351 transitions. [2023-12-21 11:24:52,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-21 11:24:52,397 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:52,397 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:52,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 11:24:52,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-21 11:24:52,603 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:52,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:52,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1271681116, now seen corresponding path program 1 times [2023-12-21 11:24:52,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:52,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384952463] [2023-12-21 11:24:52,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:52,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:24:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:24:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:24:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:24:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,699 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-12-21 11:24:52,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:52,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384952463] [2023-12-21 11:24:52,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384952463] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:52,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:52,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:24:52,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227989921] [2023-12-21 11:24:52,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:52,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:52,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:52,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:52,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:24:52,700 INFO L87 Difference]: Start difference. First operand 263 states and 351 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-21 11:24:52,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:52,723 INFO L93 Difference]: Finished difference Result 406 states and 568 transitions. [2023-12-21 11:24:52,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:52,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 205 [2023-12-21 11:24:52,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:52,725 INFO L225 Difference]: With dead ends: 406 [2023-12-21 11:24:52,725 INFO L226 Difference]: Without dead ends: 269 [2023-12-21 11:24:52,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:52,726 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 6 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:52,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 737 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:52,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-12-21 11:24:52,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 267. [2023-12-21 11:24:52,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 217 states have (on average 1.2811059907834101) internal successors, (278), 220 states have internal predecessors, (278), 38 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 11:24:52,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 354 transitions. [2023-12-21 11:24:52,733 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 354 transitions. Word has length 205 [2023-12-21 11:24:52,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:52,733 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 354 transitions. [2023-12-21 11:24:52,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-21 11:24:52,734 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 354 transitions. [2023-12-21 11:24:52,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-21 11:24:52,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:52,735 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:52,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 11:24:52,735 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:52,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:52,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1233341410, now seen corresponding path program 1 times [2023-12-21 11:24:52,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:52,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123952197] [2023-12-21 11:24:52,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:52,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:52,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:24:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:24:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:24:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:52,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:24:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:24:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,831 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-12-21 11:24:52,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:52,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123952197] [2023-12-21 11:24:52,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123952197] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:24:52,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867541775] [2023-12-21 11:24:52,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:52,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:24:52,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:24:52,832 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:24:52,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 11:24:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:52,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 11:24:52,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:24:53,000 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-12-21 11:24:53,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 11:24:53,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867541775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:53,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 11:24:53,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2023-12-21 11:24:53,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746443500] [2023-12-21 11:24:53,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:53,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:53,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:53,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:53,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:53,002 INFO L87 Difference]: Start difference. First operand 267 states and 354 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-21 11:24:53,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:53,030 INFO L93 Difference]: Finished difference Result 415 states and 575 transitions. [2023-12-21 11:24:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:53,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 212 [2023-12-21 11:24:53,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:53,032 INFO L225 Difference]: With dead ends: 415 [2023-12-21 11:24:53,032 INFO L226 Difference]: Without dead ends: 274 [2023-12-21 11:24:53,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 11:24:53,034 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 7 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:53,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 742 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:53,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2023-12-21 11:24:53,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 272. [2023-12-21 11:24:53,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 221 states have (on average 1.2760180995475112) internal successors, (282), 224 states have internal predecessors, (282), 38 states have call successors, (38), 12 states have call predecessors, (38), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 11:24:53,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 358 transitions. [2023-12-21 11:24:53,043 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 358 transitions. Word has length 212 [2023-12-21 11:24:53,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:53,048 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 358 transitions. [2023-12-21 11:24:53,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-21 11:24:53,049 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 358 transitions. [2023-12-21 11:24:53,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-12-21 11:24:53,050 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:53,051 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:53,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 11:24:53,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:24:53,257 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:53,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:53,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1184005805, now seen corresponding path program 1 times [2023-12-21 11:24:53,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:53,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380475215] [2023-12-21 11:24:53,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:53,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:24:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:24:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:24:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:24:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:24:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:24:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,388 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2023-12-21 11:24:53,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:53,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380475215] [2023-12-21 11:24:53,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380475215] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:24:53,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30376223] [2023-12-21 11:24:53,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:53,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:24:53,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:24:53,390 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:24:53,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 11:24:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 11:24:53,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:24:53,550 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2023-12-21 11:24:53,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 11:24:53,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30376223] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:53,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 11:24:53,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2023-12-21 11:24:53,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416938088] [2023-12-21 11:24:53,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:53,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:53,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:53,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:53,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:53,553 INFO L87 Difference]: Start difference. First operand 272 states and 358 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-21 11:24:53,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:53,577 INFO L93 Difference]: Finished difference Result 417 states and 573 transitions. [2023-12-21 11:24:53,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 11:24:53,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 220 [2023-12-21 11:24:53,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:53,579 INFO L225 Difference]: With dead ends: 417 [2023-12-21 11:24:53,579 INFO L226 Difference]: Without dead ends: 271 [2023-12-21 11:24:53,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 11:24:53,580 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 7 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:53,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 728 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:53,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2023-12-21 11:24:53,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2023-12-21 11:24:53,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 221 states have (on average 1.262443438914027) internal successors, (279), 223 states have internal predecessors, (279), 37 states have call successors, (37), 12 states have call predecessors, (37), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-12-21 11:24:53,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 353 transitions. [2023-12-21 11:24:53,612 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 353 transitions. Word has length 220 [2023-12-21 11:24:53,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:53,612 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 353 transitions. [2023-12-21 11:24:53,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-21 11:24:53,612 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 353 transitions. [2023-12-21 11:24:53,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2023-12-21 11:24:53,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:53,614 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:53,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 11:24:53,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:24:53,820 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:53,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:53,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1274064016, now seen corresponding path program 1 times [2023-12-21 11:24:53,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:53,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578004948] [2023-12-21 11:24:53,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:53,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:24:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:24:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:24:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:24:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:24:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:24:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 11:24:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:53,927 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2023-12-21 11:24:53,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:53,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578004948] [2023-12-21 11:24:53,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578004948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:53,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:53,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:24:53,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16790768] [2023-12-21 11:24:53,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:53,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:53,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:53,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:53,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:24:53,928 INFO L87 Difference]: Start difference. First operand 271 states and 353 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-21 11:24:54,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:54,075 INFO L93 Difference]: Finished difference Result 415 states and 562 transitions. [2023-12-21 11:24:54,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 11:24:54,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 228 [2023-12-21 11:24:54,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:54,077 INFO L225 Difference]: With dead ends: 415 [2023-12-21 11:24:54,077 INFO L226 Difference]: Without dead ends: 270 [2023-12-21 11:24:54,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:24:54,079 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 60 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:54,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 473 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 11:24:54,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-12-21 11:24:54,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2023-12-21 11:24:54,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 221 states have (on average 1.257918552036199) internal successors, (278), 222 states have internal predecessors, (278), 36 states have call successors, (36), 12 states have call predecessors, (36), 12 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-21 11:24:54,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 350 transitions. [2023-12-21 11:24:54,094 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 350 transitions. Word has length 228 [2023-12-21 11:24:54,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:54,096 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 350 transitions. [2023-12-21 11:24:54,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-21 11:24:54,096 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 350 transitions. [2023-12-21 11:24:54,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-12-21 11:24:54,099 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:54,099 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:54,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 11:24:54,099 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:54,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:54,100 INFO L85 PathProgramCache]: Analyzing trace with hash -665571617, now seen corresponding path program 1 times [2023-12-21 11:24:54,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:54,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431789135] [2023-12-21 11:24:54,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:54,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:24:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:24:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:24:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:24:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:24:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:24:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 11:24:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,319 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2023-12-21 11:24:54,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:54,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431789135] [2023-12-21 11:24:54,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431789135] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:54,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:54,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 11:24:54,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288810277] [2023-12-21 11:24:54,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:54,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 11:24:54,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:54,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 11:24:54,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:54,324 INFO L87 Difference]: Start difference. First operand 270 states and 350 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-21 11:24:54,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:54,659 INFO L93 Difference]: Finished difference Result 619 states and 830 transitions. [2023-12-21 11:24:54,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 11:24:54,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 230 [2023-12-21 11:24:54,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:54,661 INFO L225 Difference]: With dead ends: 619 [2023-12-21 11:24:54,661 INFO L226 Difference]: Without dead ends: 475 [2023-12-21 11:24:54,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-21 11:24:54,663 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 407 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:54,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 617 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 11:24:54,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2023-12-21 11:24:54,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 421. [2023-12-21 11:24:54,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 342 states have (on average 1.304093567251462) internal successors, (446), 344 states have internal predecessors, (446), 54 states have call successors, (54), 24 states have call predecessors, (54), 24 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-21 11:24:54,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 554 transitions. [2023-12-21 11:24:54,683 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 554 transitions. Word has length 230 [2023-12-21 11:24:54,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:54,684 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 554 transitions. [2023-12-21 11:24:54,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-21 11:24:54,684 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 554 transitions. [2023-12-21 11:24:54,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-12-21 11:24:54,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:54,685 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:54,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 11:24:54,686 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:54,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:54,686 INFO L85 PathProgramCache]: Analyzing trace with hash 2013258127, now seen corresponding path program 1 times [2023-12-21 11:24:54,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:54,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480095931] [2023-12-21 11:24:54,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:54,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:24:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:24:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:24:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:24:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:24:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:24:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 11:24:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-21 11:24:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-21 11:24:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-21 11:24:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:54,809 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2023-12-21 11:24:54,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:54,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480095931] [2023-12-21 11:24:54,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480095931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:54,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:54,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:24:54,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747356145] [2023-12-21 11:24:54,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:54,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:54,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:54,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:54,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:24:54,811 INFO L87 Difference]: Start difference. First operand 421 states and 554 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 11:24:55,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:55,060 INFO L93 Difference]: Finished difference Result 889 states and 1224 transitions. [2023-12-21 11:24:55,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:55,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 257 [2023-12-21 11:24:55,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:55,063 INFO L225 Difference]: With dead ends: 889 [2023-12-21 11:24:55,063 INFO L226 Difference]: Without dead ends: 662 [2023-12-21 11:24:55,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:55,064 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 220 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:55,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 470 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 11:24:55,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2023-12-21 11:24:55,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 500. [2023-12-21 11:24:55,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 411 states have (on average 1.316301703163017) internal successors, (541), 414 states have internal predecessors, (541), 59 states have call successors, (59), 29 states have call predecessors, (59), 29 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-21 11:24:55,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 659 transitions. [2023-12-21 11:24:55,090 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 659 transitions. Word has length 257 [2023-12-21 11:24:55,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:55,091 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 659 transitions. [2023-12-21 11:24:55,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 11:24:55,091 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 659 transitions. [2023-12-21 11:24:55,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-12-21 11:24:55,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:55,093 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:55,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 11:24:55,093 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:55,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:55,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1455159987, now seen corresponding path program 1 times [2023-12-21 11:24:55,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:55,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762472800] [2023-12-21 11:24:55,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:55,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:55,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:24:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:24:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:24:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:24:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:24:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:24:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 11:24:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-21 11:24:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-21 11:24:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-21 11:24:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,187 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2023-12-21 11:24:55,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:55,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762472800] [2023-12-21 11:24:55,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762472800] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:55,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:55,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:24:55,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175666603] [2023-12-21 11:24:55,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:55,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:55,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:55,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:55,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:24:55,189 INFO L87 Difference]: Start difference. First operand 500 states and 659 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 11:24:55,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:55,481 INFO L93 Difference]: Finished difference Result 1060 states and 1455 transitions. [2023-12-21 11:24:55,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:55,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 258 [2023-12-21 11:24:55,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:55,484 INFO L225 Difference]: With dead ends: 1060 [2023-12-21 11:24:55,484 INFO L226 Difference]: Without dead ends: 783 [2023-12-21 11:24:55,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:55,485 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 221 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:55,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 498 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 11:24:55,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2023-12-21 11:24:55,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 608. [2023-12-21 11:24:55,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 507 states have (on average 1.331360946745562) internal successors, (675), 512 states have internal predecessors, (675), 65 states have call successors, (65), 35 states have call predecessors, (65), 35 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-21 11:24:55,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 805 transitions. [2023-12-21 11:24:55,527 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 805 transitions. Word has length 258 [2023-12-21 11:24:55,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:55,527 INFO L495 AbstractCegarLoop]: Abstraction has 608 states and 805 transitions. [2023-12-21 11:24:55,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 11:24:55,527 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 805 transitions. [2023-12-21 11:24:55,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-21 11:24:55,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:55,529 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:55,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 11:24:55,530 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:55,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:55,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1232443562, now seen corresponding path program 1 times [2023-12-21 11:24:55,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:55,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571351579] [2023-12-21 11:24:55,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:55,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:24:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:24:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:24:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:24:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:24:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:24:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 11:24:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-21 11:24:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-21 11:24:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-21 11:24:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:55,638 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2023-12-21 11:24:55,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:55,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571351579] [2023-12-21 11:24:55,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571351579] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:55,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:55,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:24:55,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498747101] [2023-12-21 11:24:55,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:55,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:55,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:55,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:55,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:24:55,639 INFO L87 Difference]: Start difference. First operand 608 states and 805 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 11:24:55,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:55,898 INFO L93 Difference]: Finished difference Result 1270 states and 1749 transitions. [2023-12-21 11:24:55,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:55,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 259 [2023-12-21 11:24:55,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:55,902 INFO L225 Difference]: With dead ends: 1270 [2023-12-21 11:24:55,902 INFO L226 Difference]: Without dead ends: 917 [2023-12-21 11:24:55,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:24:55,903 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 221 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:55,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 525 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 11:24:55,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2023-12-21 11:24:55,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 714. [2023-12-21 11:24:55,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 605 states have (on average 1.3537190082644628) internal successors, (819), 614 states have internal predecessors, (819), 69 states have call successors, (69), 39 states have call predecessors, (69), 39 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-21 11:24:55,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 957 transitions. [2023-12-21 11:24:55,948 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 957 transitions. Word has length 259 [2023-12-21 11:24:55,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:55,949 INFO L495 AbstractCegarLoop]: Abstraction has 714 states and 957 transitions. [2023-12-21 11:24:55,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 11:24:55,950 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 957 transitions. [2023-12-21 11:24:55,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-21 11:24:55,951 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:55,952 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:55,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 11:24:55,952 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:55,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:55,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1507203176, now seen corresponding path program 1 times [2023-12-21 11:24:55,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:55,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776136479] [2023-12-21 11:24:55,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:55,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:55,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:24:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:24:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:24:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:24:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:24:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:24:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 11:24:56,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-21 11:24:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-21 11:24:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-21 11:24:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,143 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 30 proven. 6 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked. [2023-12-21 11:24:56,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:56,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776136479] [2023-12-21 11:24:56,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776136479] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:24:56,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978019965] [2023-12-21 11:24:56,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:56,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:24:56,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:24:56,153 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:24:56,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 11:24:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 11:24:56,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:24:56,333 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2023-12-21 11:24:56,333 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 11:24:56,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978019965] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:56,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 11:24:56,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-12-21 11:24:56,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862882457] [2023-12-21 11:24:56,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:56,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:56,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:56,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:56,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-21 11:24:56,335 INFO L87 Difference]: Start difference. First operand 714 states and 957 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 11:24:56,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:56,419 INFO L93 Difference]: Finished difference Result 1177 states and 1621 transitions. [2023-12-21 11:24:56,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:56,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 259 [2023-12-21 11:24:56,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:56,422 INFO L225 Difference]: With dead ends: 1177 [2023-12-21 11:24:56,422 INFO L226 Difference]: Without dead ends: 714 [2023-12-21 11:24:56,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-21 11:24:56,423 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 51 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:56,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 645 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:56,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2023-12-21 11:24:56,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 714. [2023-12-21 11:24:56,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 605 states have (on average 1.343801652892562) internal successors, (813), 614 states have internal predecessors, (813), 69 states have call successors, (69), 39 states have call predecessors, (69), 39 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-21 11:24:56,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 951 transitions. [2023-12-21 11:24:56,454 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 951 transitions. Word has length 259 [2023-12-21 11:24:56,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:56,454 INFO L495 AbstractCegarLoop]: Abstraction has 714 states and 951 transitions. [2023-12-21 11:24:56,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 11:24:56,455 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 951 transitions. [2023-12-21 11:24:56,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-21 11:24:56,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:56,456 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:56,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-21 11:24:56,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-12-21 11:24:56,663 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:56,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:56,663 INFO L85 PathProgramCache]: Analyzing trace with hash 632654985, now seen corresponding path program 1 times [2023-12-21 11:24:56,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:56,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057776242] [2023-12-21 11:24:56,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:56,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:24:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:24:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:24:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:24:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:24:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:24:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 11:24:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-21 11:24:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-21 11:24:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-21 11:24:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:56,842 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2023-12-21 11:24:56,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:56,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057776242] [2023-12-21 11:24:56,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057776242] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:24:56,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835956859] [2023-12-21 11:24:56,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:56,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:24:56,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:24:56,843 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:24:56,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 11:24:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 11:24:57,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:24:57,036 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2023-12-21 11:24:57,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 11:24:57,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835956859] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:57,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 11:24:57,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-12-21 11:24:57,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666414101] [2023-12-21 11:24:57,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:57,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:57,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:57,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:57,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-21 11:24:57,037 INFO L87 Difference]: Start difference. First operand 714 states and 951 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 11:24:57,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:57,101 INFO L93 Difference]: Finished difference Result 1177 states and 1607 transitions. [2023-12-21 11:24:57,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:24:57,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 260 [2023-12-21 11:24:57,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:57,104 INFO L225 Difference]: With dead ends: 1177 [2023-12-21 11:24:57,104 INFO L226 Difference]: Without dead ends: 726 [2023-12-21 11:24:57,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-21 11:24:57,105 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 15 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:57,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 668 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:24:57,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2023-12-21 11:24:57,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 726. [2023-12-21 11:24:57,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 615 states have (on average 1.3447154471544716) internal successors, (827), 624 states have internal predecessors, (827), 69 states have call successors, (69), 41 states have call predecessors, (69), 41 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-21 11:24:57,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 965 transitions. [2023-12-21 11:24:57,158 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 965 transitions. Word has length 260 [2023-12-21 11:24:57,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:57,159 INFO L495 AbstractCegarLoop]: Abstraction has 726 states and 965 transitions. [2023-12-21 11:24:57,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 11:24:57,159 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 965 transitions. [2023-12-21 11:24:57,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-12-21 11:24:57,176 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:57,176 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:57,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 11:24:57,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-21 11:24:57,377 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:57,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:57,377 INFO L85 PathProgramCache]: Analyzing trace with hash 75189186, now seen corresponding path program 1 times [2023-12-21 11:24:57,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:57,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925809847] [2023-12-21 11:24:57,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:57,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:57,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:24:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:24:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:24:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:24:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:24:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:24:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 11:24:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-21 11:24:57,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-21 11:24:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-21 11:24:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,523 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2023-12-21 11:24:57,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:57,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925809847] [2023-12-21 11:24:57,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925809847] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:57,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:57,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:24:57,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679721666] [2023-12-21 11:24:57,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:57,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:24:57,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:57,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:24:57,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:24:57,525 INFO L87 Difference]: Start difference. First operand 726 states and 965 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 11:24:57,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:57,709 INFO L93 Difference]: Finished difference Result 1191 states and 1621 transitions. [2023-12-21 11:24:57,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 11:24:57,710 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 261 [2023-12-21 11:24:57,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:57,712 INFO L225 Difference]: With dead ends: 1191 [2023-12-21 11:24:57,712 INFO L226 Difference]: Without dead ends: 707 [2023-12-21 11:24:57,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:24:57,713 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 59 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:57,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 471 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 11:24:57,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2023-12-21 11:24:57,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2023-12-21 11:24:57,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 597 states have (on average 1.3266331658291457) internal successors, (792), 605 states have internal predecessors, (792), 69 states have call successors, (69), 41 states have call predecessors, (69), 40 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-21 11:24:57,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 929 transitions. [2023-12-21 11:24:57,739 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 929 transitions. Word has length 261 [2023-12-21 11:24:57,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:57,739 INFO L495 AbstractCegarLoop]: Abstraction has 707 states and 929 transitions. [2023-12-21 11:24:57,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 11:24:57,739 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 929 transitions. [2023-12-21 11:24:57,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-12-21 11:24:57,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:57,741 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:57,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 11:24:57,741 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:57,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:57,741 INFO L85 PathProgramCache]: Analyzing trace with hash -189143771, now seen corresponding path program 1 times [2023-12-21 11:24:57,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:57,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667369448] [2023-12-21 11:24:57,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:57,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:24:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:24:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:24:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:24:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:24:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:24:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:24:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:24:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:24:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-21 11:24:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:57,987 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2023-12-21 11:24:57,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:57,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667369448] [2023-12-21 11:24:57,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667369448] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:24:57,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:24:57,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:24:57,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150166267] [2023-12-21 11:24:57,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:24:57,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:24:57,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:57,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:24:57,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:24:57,989 INFO L87 Difference]: Start difference. First operand 707 states and 929 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 11:24:58,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:24:58,413 INFO L93 Difference]: Finished difference Result 1021 states and 1421 transitions. [2023-12-21 11:24:58,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 11:24:58,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 262 [2023-12-21 11:24:58,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:24:58,417 INFO L225 Difference]: With dead ends: 1021 [2023-12-21 11:24:58,417 INFO L226 Difference]: Without dead ends: 1019 [2023-12-21 11:24:58,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-21 11:24:58,418 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 241 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 11:24:58,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1480 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 11:24:58,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2023-12-21 11:24:58,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 713. [2023-12-21 11:24:58,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 601 states have (on average 1.324459234608985) internal successors, (796), 610 states have internal predecessors, (796), 70 states have call successors, (70), 42 states have call predecessors, (70), 41 states have return successors, (69), 67 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-21 11:24:58,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 935 transitions. [2023-12-21 11:24:58,450 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 935 transitions. Word has length 262 [2023-12-21 11:24:58,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:24:58,450 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 935 transitions. [2023-12-21 11:24:58,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 11:24:58,450 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 935 transitions. [2023-12-21 11:24:58,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-12-21 11:24:58,452 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:24:58,452 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:24:58,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-21 11:24:58,452 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:24:58,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:24:58,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1197847061, now seen corresponding path program 1 times [2023-12-21 11:24:58,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:24:58,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132968783] [2023-12-21 11:24:58,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:58,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:24:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:24:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:24:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:24:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:24:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:24:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:24:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:24:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:24:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:24:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:24:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:24:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:24:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:24:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:24:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:24:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:24:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:24:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:24:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:24:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:24:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-21 11:24:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-21 11:24:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,750 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 142 proven. 27 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2023-12-21 11:24:58,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:24:58,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132968783] [2023-12-21 11:24:58,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132968783] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:24:58,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477598943] [2023-12-21 11:24:58,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:24:58,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:24:58,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:24:58,752 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:24:58,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 11:24:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:24:58,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-21 11:24:58,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:24:59,092 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 251 proven. 33 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2023-12-21 11:24:59,092 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 11:24:59,358 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 146 proven. 23 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2023-12-21 11:24:59,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477598943] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 11:24:59,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 11:24:59,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 19 [2023-12-21 11:24:59,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916466872] [2023-12-21 11:24:59,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 11:24:59,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-21 11:24:59,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:24:59,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-21 11:24:59,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-12-21 11:24:59,370 INFO L87 Difference]: Start difference. First operand 713 states and 935 transitions. Second operand has 19 states, 19 states have (on average 7.578947368421052) internal successors, (144), 14 states have internal predecessors, (144), 5 states have call successors, (28), 5 states have call predecessors, (28), 9 states have return successors, (27), 8 states have call predecessors, (27), 5 states have call successors, (27) [2023-12-21 11:25:00,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:25:00,718 INFO L93 Difference]: Finished difference Result 1772 states and 2442 transitions. [2023-12-21 11:25:00,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-21 11:25:00,719 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.578947368421052) internal successors, (144), 14 states have internal predecessors, (144), 5 states have call successors, (28), 5 states have call predecessors, (28), 9 states have return successors, (27), 8 states have call predecessors, (27), 5 states have call successors, (27) Word has length 270 [2023-12-21 11:25:00,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:25:00,723 INFO L225 Difference]: With dead ends: 1772 [2023-12-21 11:25:00,723 INFO L226 Difference]: Without dead ends: 1320 [2023-12-21 11:25:00,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 582 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=211, Invalid=1121, Unknown=0, NotChecked=0, Total=1332 [2023-12-21 11:25:00,725 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 357 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 1590 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 2314 SdHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 11:25:00,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 2314 Invalid, 1693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1590 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 11:25:00,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2023-12-21 11:25:00,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 981. [2023-12-21 11:25:00,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 829 states have (on average 1.3112183353437876) internal successors, (1087), 839 states have internal predecessors, (1087), 94 states have call successors, (94), 55 states have call predecessors, (94), 57 states have return successors, (98), 93 states have call predecessors, (98), 93 states have call successors, (98) [2023-12-21 11:25:00,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1279 transitions. [2023-12-21 11:25:00,771 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1279 transitions. Word has length 270 [2023-12-21 11:25:00,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:25:00,772 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1279 transitions. [2023-12-21 11:25:00,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.578947368421052) internal successors, (144), 14 states have internal predecessors, (144), 5 states have call successors, (28), 5 states have call predecessors, (28), 9 states have return successors, (27), 8 states have call predecessors, (27), 5 states have call successors, (27) [2023-12-21 11:25:00,772 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1279 transitions. [2023-12-21 11:25:00,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-12-21 11:25:00,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:25:00,774 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:25:00,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-21 11:25:00,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:25:00,982 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:25:00,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:25:00,983 INFO L85 PathProgramCache]: Analyzing trace with hash -236233044, now seen corresponding path program 1 times [2023-12-21 11:25:00,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:25:00,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455352343] [2023-12-21 11:25:00,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:00,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:25:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:25:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:25:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:25:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:25:01,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:25:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:25:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:25:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:25:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:25:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:25:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:25:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:25:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:25:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:25:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:25:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:25:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:25:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:25:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:25:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-21 11:25:01,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-21 11:25:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,101 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2023-12-21 11:25:01,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:25:01,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455352343] [2023-12-21 11:25:01,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455352343] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:25:01,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280109506] [2023-12-21 11:25:01,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:01,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:25:01,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:25:01,103 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:25:01,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 11:25:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 11:25:01,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:25:01,288 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2023-12-21 11:25:01,289 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 11:25:01,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280109506] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:25:01,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 11:25:01,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2023-12-21 11:25:01,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76178747] [2023-12-21 11:25:01,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:25:01,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:25:01,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:25:01,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:25:01,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:25:01,290 INFO L87 Difference]: Start difference. First operand 981 states and 1279 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-21 11:25:01,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:25:01,362 INFO L93 Difference]: Finished difference Result 1826 states and 2423 transitions. [2023-12-21 11:25:01,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:25:01,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 270 [2023-12-21 11:25:01,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:25:01,365 INFO L225 Difference]: With dead ends: 1826 [2023-12-21 11:25:01,365 INFO L226 Difference]: Without dead ends: 965 [2023-12-21 11:25:01,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 11:25:01,367 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 11 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:25:01,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 665 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:25:01,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2023-12-21 11:25:01,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2023-12-21 11:25:01,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 818 states have (on average 1.2995110024449879) internal successors, (1063), 828 states have internal predecessors, (1063), 90 states have call successors, (90), 55 states have call predecessors, (90), 56 states have return successors, (93), 88 states have call predecessors, (93), 89 states have call successors, (93) [2023-12-21 11:25:01,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1246 transitions. [2023-12-21 11:25:01,406 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1246 transitions. Word has length 270 [2023-12-21 11:25:01,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:25:01,407 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1246 transitions. [2023-12-21 11:25:01,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-21 11:25:01,407 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1246 transitions. [2023-12-21 11:25:01,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2023-12-21 11:25:01,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:25:01,408 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:25:01,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-21 11:25:01,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-12-21 11:25:01,616 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:25:01,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:25:01,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1167214169, now seen corresponding path program 1 times [2023-12-21 11:25:01,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:25:01,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5315552] [2023-12-21 11:25:01,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:01,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:25:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:25:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:25:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:25:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:25:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:25:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:25:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:25:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:25:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:25:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:25:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:25:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:25:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:25:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 11:25:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 11:25:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-21 11:25:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-21 11:25:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-21 11:25:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-21 11:25:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-21 11:25:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-21 11:25:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-21 11:25:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,723 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 121 proven. 19 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2023-12-21 11:25:01,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:25:01,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5315552] [2023-12-21 11:25:01,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5315552] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:25:01,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472532277] [2023-12-21 11:25:01,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:01,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:25:01,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:25:01,745 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:25:01,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-21 11:25:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:01,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 11:25:01,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:25:01,919 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2023-12-21 11:25:01,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 11:25:01,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472532277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:25:01,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 11:25:01,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2023-12-21 11:25:01,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779278449] [2023-12-21 11:25:01,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:25:01,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:25:01,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:25:01,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:25:01,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:25:01,920 INFO L87 Difference]: Start difference. First operand 965 states and 1246 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 11:25:01,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:25:01,999 INFO L93 Difference]: Finished difference Result 1674 states and 2207 transitions. [2023-12-21 11:25:01,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:25:02,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 273 [2023-12-21 11:25:02,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:25:02,003 INFO L225 Difference]: With dead ends: 1674 [2023-12-21 11:25:02,003 INFO L226 Difference]: Without dead ends: 820 [2023-12-21 11:25:02,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 11:25:02,004 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 8 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:25:02,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 668 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:25:02,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2023-12-21 11:25:02,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 820. [2023-12-21 11:25:02,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 691 states have (on average 1.3024602026049203) internal successors, (900), 701 states have internal predecessors, (900), 81 states have call successors, (81), 48 states have call predecessors, (81), 47 states have return successors, (80), 77 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 11:25:02,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1061 transitions. [2023-12-21 11:25:02,040 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1061 transitions. Word has length 273 [2023-12-21 11:25:02,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:25:02,041 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 1061 transitions. [2023-12-21 11:25:02,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 11:25:02,041 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1061 transitions. [2023-12-21 11:25:02,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-21 11:25:02,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:25:02,042 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 8, 8, 8, 7, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:25:02,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-21 11:25:02,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:25:02,249 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:25:02,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:25:02,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1310518252, now seen corresponding path program 1 times [2023-12-21 11:25:02,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:25:02,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602200679] [2023-12-21 11:25:02,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:02,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:25:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:25:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:25:02,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:25:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:25:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:25:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:25:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:25:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:25:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:25:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:25:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:25:02,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:25:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:25:02,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:25:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:25:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:25:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:25:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:25:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:25:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-21 11:25:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-21 11:25:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-21 11:25:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-21 11:25:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,814 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 16 proven. 146 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2023-12-21 11:25:02,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:25:02,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602200679] [2023-12-21 11:25:02,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602200679] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:25:02,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641855531] [2023-12-21 11:25:02,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:02,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:25:02,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:25:02,816 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:25:02,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-21 11:25:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:02,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-21 11:25:02,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:25:03,184 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2023-12-21 11:25:03,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 11:25:03,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641855531] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:25:03,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 11:25:03,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 23 [2023-12-21 11:25:03,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746807228] [2023-12-21 11:25:03,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:25:03,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 11:25:03,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:25:03,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 11:25:03,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=460, Unknown=0, NotChecked=0, Total=506 [2023-12-21 11:25:03,186 INFO L87 Difference]: Start difference. First operand 820 states and 1061 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 9 states have internal predecessors, (104), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-21 11:25:03,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:25:03,832 INFO L93 Difference]: Finished difference Result 2186 states and 2833 transitions. [2023-12-21 11:25:03,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 11:25:03,832 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 9 states have internal predecessors, (104), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 285 [2023-12-21 11:25:03,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:25:03,841 INFO L225 Difference]: With dead ends: 2186 [2023-12-21 11:25:03,841 INFO L226 Difference]: Without dead ends: 1727 [2023-12-21 11:25:03,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 327 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=136, Invalid=1196, Unknown=0, NotChecked=0, Total=1332 [2023-12-21 11:25:03,843 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 626 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 2773 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 11:25:03,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 2773 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 11:25:03,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2023-12-21 11:25:03,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 1353. [2023-12-21 11:25:03,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1353 states, 1126 states have (on average 1.2815275310834813) internal successors, (1443), 1141 states have internal predecessors, (1443), 149 states have call successors, (149), 78 states have call predecessors, (149), 77 states have return successors, (148), 140 states have call predecessors, (148), 148 states have call successors, (148) [2023-12-21 11:25:03,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1740 transitions. [2023-12-21 11:25:03,907 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1740 transitions. Word has length 285 [2023-12-21 11:25:03,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:25:03,907 INFO L495 AbstractCegarLoop]: Abstraction has 1353 states and 1740 transitions. [2023-12-21 11:25:03,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 9 states have internal predecessors, (104), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-21 11:25:03,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1740 transitions. [2023-12-21 11:25:03,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-12-21 11:25:03,909 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:25:03,909 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:25:03,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-21 11:25:04,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-12-21 11:25:04,116 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:25:04,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:25:04,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1676240983, now seen corresponding path program 1 times [2023-12-21 11:25:04,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:25:04,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743766386] [2023-12-21 11:25:04,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:04,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:25:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:25:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:25:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:25:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:25:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:25:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:25:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:25:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:25:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:25:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:25:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:25:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:25:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:25:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:25:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:25:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:25:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:25:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:25:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:25:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 11:25:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 11:25:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-21 11:25:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-21 11:25:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,271 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2023-12-21 11:25:04,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:25:04,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743766386] [2023-12-21 11:25:04,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743766386] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:25:04,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:25:04,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 11:25:04,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902351761] [2023-12-21 11:25:04,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:25:04,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 11:25:04,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:25:04,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 11:25:04,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:25:04,272 INFO L87 Difference]: Start difference. First operand 1353 states and 1740 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 5 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-21 11:25:04,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:25:04,623 INFO L93 Difference]: Finished difference Result 2883 states and 3939 transitions. [2023-12-21 11:25:04,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 11:25:04,624 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 5 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 291 [2023-12-21 11:25:04,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:25:04,630 INFO L225 Difference]: With dead ends: 2883 [2023-12-21 11:25:04,630 INFO L226 Difference]: Without dead ends: 1876 [2023-12-21 11:25:04,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 11:25:04,632 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 226 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 11:25:04,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 943 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 11:25:04,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2023-12-21 11:25:04,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1446. [2023-12-21 11:25:04,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1446 states, 1198 states have (on average 1.2921535893155258) internal successors, (1548), 1213 states have internal predecessors, (1548), 170 states have call successors, (170), 78 states have call predecessors, (170), 77 states have return successors, (169), 161 states have call predecessors, (169), 169 states have call successors, (169) [2023-12-21 11:25:04,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 1887 transitions. [2023-12-21 11:25:04,747 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 1887 transitions. Word has length 291 [2023-12-21 11:25:04,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:25:04,748 INFO L495 AbstractCegarLoop]: Abstraction has 1446 states and 1887 transitions. [2023-12-21 11:25:04,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 5 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-21 11:25:04,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 1887 transitions. [2023-12-21 11:25:04,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-12-21 11:25:04,750 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:25:04,750 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:25:04,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-21 11:25:04,750 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:25:04,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:25:04,751 INFO L85 PathProgramCache]: Analyzing trace with hash 788311333, now seen corresponding path program 1 times [2023-12-21 11:25:04,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:25:04,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684743200] [2023-12-21 11:25:04,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:04,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:25:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:25:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:25:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:25:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:25:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:25:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:25:04,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:25:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:25:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:04,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:25:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:05,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:25:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:05,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:05,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:25:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:05,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:25:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:05,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:25:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:05,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:05,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:25:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:05,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:25:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:05,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:25:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:05,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:25:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:05,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:25:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:05,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:25:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:05,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 11:25:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:05,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 11:25:05,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:05,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-21 11:25:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:05,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-21 11:25:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:05,057 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 754 trivial. 0 not checked. [2023-12-21 11:25:05,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:25:05,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684743200] [2023-12-21 11:25:05,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684743200] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:25:05,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781862285] [2023-12-21 11:25:05,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:05,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:25:05,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:25:05,059 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:25:05,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-21 11:25:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:05,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-21 11:25:05,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:25:05,368 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2023-12-21 11:25:05,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 11:25:05,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781862285] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:25:05,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 11:25:05,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2023-12-21 11:25:05,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362264070] [2023-12-21 11:25:05,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:25:05,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 11:25:05,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:25:05,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 11:25:05,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2023-12-21 11:25:05,370 INFO L87 Difference]: Start difference. First operand 1446 states and 1887 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 11:25:05,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:25:05,704 INFO L93 Difference]: Finished difference Result 3308 states and 4439 transitions. [2023-12-21 11:25:05,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 11:25:05,705 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 291 [2023-12-21 11:25:05,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:25:05,712 INFO L225 Difference]: With dead ends: 3308 [2023-12-21 11:25:05,712 INFO L226 Difference]: Without dead ends: 2215 [2023-12-21 11:25:05,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2023-12-21 11:25:05,715 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 171 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 11:25:05,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 1948 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 11:25:05,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2215 states. [2023-12-21 11:25:05,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2215 to 1666. [2023-12-21 11:25:05,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1666 states, 1381 states have (on average 1.283128167994207) internal successors, (1772), 1398 states have internal predecessors, (1772), 197 states have call successors, (197), 88 states have call predecessors, (197), 87 states have return successors, (196), 186 states have call predecessors, (196), 196 states have call successors, (196) [2023-12-21 11:25:05,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2165 transitions. [2023-12-21 11:25:05,816 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2165 transitions. Word has length 291 [2023-12-21 11:25:05,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:25:05,817 INFO L495 AbstractCegarLoop]: Abstraction has 1666 states and 2165 transitions. [2023-12-21 11:25:05,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 11:25:05,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2165 transitions. [2023-12-21 11:25:05,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-12-21 11:25:05,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:25:05,818 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:25:05,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-21 11:25:06,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-12-21 11:25:06,025 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:25:06,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:25:06,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1463644453, now seen corresponding path program 1 times [2023-12-21 11:25:06,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:25:06,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046637553] [2023-12-21 11:25:06,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:06,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:25:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:25:06,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:25:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:25:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:25:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:25:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:25:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:25:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:25:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:25:06,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:25:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:06,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:25:06,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:25:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:25:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:25:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:25:06,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:25:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:25:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:25:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:25:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 11:25:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 11:25:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-21 11:25:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-21 11:25:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,272 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-21 11:25:06,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:25:06,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046637553] [2023-12-21 11:25:06,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046637553] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:25:06,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850678323] [2023-12-21 11:25:06,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:06,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:25:06,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:25:06,276 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:25:06,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-21 11:25:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:06,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-21 11:25:06,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:25:06,558 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2023-12-21 11:25:06,558 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 11:25:06,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850678323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:25:06,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 11:25:06,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 17 [2023-12-21 11:25:06,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536396506] [2023-12-21 11:25:06,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:25:06,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 11:25:06,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:25:06,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 11:25:06,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-12-21 11:25:06,559 INFO L87 Difference]: Start difference. First operand 1666 states and 2165 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 9 states have internal predecessors, (110), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-21 11:25:07,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:25:07,318 INFO L93 Difference]: Finished difference Result 3586 states and 4756 transitions. [2023-12-21 11:25:07,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 11:25:07,318 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 9 states have internal predecessors, (110), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 291 [2023-12-21 11:25:07,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:25:07,329 INFO L225 Difference]: With dead ends: 3586 [2023-12-21 11:25:07,329 INFO L226 Difference]: Without dead ends: 2333 [2023-12-21 11:25:07,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=793, Unknown=0, NotChecked=0, Total=930 [2023-12-21 11:25:07,333 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 706 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 2890 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 11:25:07,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [721 Valid, 2890 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 11:25:07,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2333 states. [2023-12-21 11:25:07,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2333 to 1633. [2023-12-21 11:25:07,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1358 states have (on average 1.2768777614138438) internal successors, (1734), 1375 states have internal predecessors, (1734), 187 states have call successors, (187), 88 states have call predecessors, (187), 87 states have return successors, (186), 176 states have call predecessors, (186), 186 states have call successors, (186) [2023-12-21 11:25:07,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2107 transitions. [2023-12-21 11:25:07,462 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2107 transitions. Word has length 291 [2023-12-21 11:25:07,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:25:07,463 INFO L495 AbstractCegarLoop]: Abstraction has 1633 states and 2107 transitions. [2023-12-21 11:25:07,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 9 states have internal predecessors, (110), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-21 11:25:07,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2107 transitions. [2023-12-21 11:25:07,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-12-21 11:25:07,465 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:25:07,465 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:25:07,492 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-21 11:25:07,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-12-21 11:25:07,672 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:25:07,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:25:07,672 INFO L85 PathProgramCache]: Analyzing trace with hash -427842393, now seen corresponding path program 1 times [2023-12-21 11:25:07,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:25:07,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492797142] [2023-12-21 11:25:07,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:07,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:25:07,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:25:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:25:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:25:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:25:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:25:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:25:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:25:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:25:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:25:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:25:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:25:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:25:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:25:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:25:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:25:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:25:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:25:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:25:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:25:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 11:25:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 11:25:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-21 11:25:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-21 11:25:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:07,796 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2023-12-21 11:25:07,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:25:07,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492797142] [2023-12-21 11:25:07,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492797142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:25:07,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:25:07,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 11:25:07,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237903099] [2023-12-21 11:25:07,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:25:07,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 11:25:07,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:25:07,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 11:25:07,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:25:07,799 INFO L87 Difference]: Start difference. First operand 1633 states and 2107 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-21 11:25:08,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:25:08,238 INFO L93 Difference]: Finished difference Result 3178 states and 4147 transitions. [2023-12-21 11:25:08,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 11:25:08,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 291 [2023-12-21 11:25:08,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:25:08,245 INFO L225 Difference]: With dead ends: 3178 [2023-12-21 11:25:08,245 INFO L226 Difference]: Without dead ends: 1909 [2023-12-21 11:25:08,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 11:25:08,247 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 299 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 11:25:08,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 568 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 11:25:08,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1909 states. [2023-12-21 11:25:08,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1662. [2023-12-21 11:25:08,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1662 states, 1379 states have (on average 1.2799129804205946) internal successors, (1765), 1396 states have internal predecessors, (1765), 195 states have call successors, (195), 88 states have call predecessors, (195), 87 states have return successors, (194), 184 states have call predecessors, (194), 194 states have call successors, (194) [2023-12-21 11:25:08,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2154 transitions. [2023-12-21 11:25:08,321 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2154 transitions. Word has length 291 [2023-12-21 11:25:08,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:25:08,321 INFO L495 AbstractCegarLoop]: Abstraction has 1662 states and 2154 transitions. [2023-12-21 11:25:08,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-21 11:25:08,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2154 transitions. [2023-12-21 11:25:08,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2023-12-21 11:25:08,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:25:08,323 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:25:08,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-21 11:25:08,323 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:25:08,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:25:08,324 INFO L85 PathProgramCache]: Analyzing trace with hash 559736868, now seen corresponding path program 1 times [2023-12-21 11:25:08,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:25:08,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296003724] [2023-12-21 11:25:08,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:08,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:25:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:25:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:25:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:25:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:25:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:25:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:25:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:25:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:25:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:25:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:25:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:25:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:25:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:25:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:25:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:25:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:25:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:25:08,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:25:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:25:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-21 11:25:08,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-21 11:25:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-21 11:25:08,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-21 11:25:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-21 11:25:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:08,469 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2023-12-21 11:25:08,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:25:08,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296003724] [2023-12-21 11:25:08,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296003724] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:25:08,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:25:08,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 11:25:08,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091414795] [2023-12-21 11:25:08,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:25:08,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 11:25:08,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:25:08,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 11:25:08,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:25:08,470 INFO L87 Difference]: Start difference. First operand 1662 states and 2154 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 11:25:08,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:25:08,971 INFO L93 Difference]: Finished difference Result 2979 states and 3893 transitions. [2023-12-21 11:25:08,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 11:25:08,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 299 [2023-12-21 11:25:08,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:25:08,977 INFO L225 Difference]: With dead ends: 2979 [2023-12-21 11:25:08,977 INFO L226 Difference]: Without dead ends: 1673 [2023-12-21 11:25:08,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 11:25:08,980 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 474 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 11:25:08,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 791 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 11:25:08,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2023-12-21 11:25:09,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1434. [2023-12-21 11:25:09,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1434 states, 1200 states have (on average 1.2608333333333333) internal successors, (1513), 1208 states have internal predecessors, (1513), 163 states have call successors, (163), 70 states have call predecessors, (163), 70 states have return successors, (163), 155 states have call predecessors, (163), 163 states have call successors, (163) [2023-12-21 11:25:09,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 1839 transitions. [2023-12-21 11:25:09,042 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 1839 transitions. Word has length 299 [2023-12-21 11:25:09,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:25:09,042 INFO L495 AbstractCegarLoop]: Abstraction has 1434 states and 1839 transitions. [2023-12-21 11:25:09,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 11:25:09,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 1839 transitions. [2023-12-21 11:25:09,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2023-12-21 11:25:09,045 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:25:09,046 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:25:09,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-21 11:25:09,046 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:25:09,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:25:09,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1991120, now seen corresponding path program 1 times [2023-12-21 11:25:09,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:25:09,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756304611] [2023-12-21 11:25:09,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:09,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:25:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:25:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:25:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:25:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:25:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:25:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:25:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:25:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:25:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:25:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:25:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:25:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:25:09,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:25:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:09,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:25:09,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:25:09,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:25:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:25:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:25:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:25:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-21 11:25:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-21 11:25:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-21 11:25:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-21 11:25:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-21 11:25:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-21 11:25:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-21 11:25:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-21 11:25:09,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-21 11:25:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,561 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 15 proven. 15 refuted. 0 times theorem prover too weak. 845 trivial. 0 not checked. [2023-12-21 11:25:09,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:25:09,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756304611] [2023-12-21 11:25:09,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756304611] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:25:09,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673551477] [2023-12-21 11:25:09,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:09,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:25:09,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:25:09,562 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:25:09,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-21 11:25:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:09,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 1219 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-21 11:25:09,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:25:10,048 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 224 proven. 75 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2023-12-21 11:25:10,048 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 11:25:10,511 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 34 proven. 71 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2023-12-21 11:25:10,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673551477] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 11:25:10,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 11:25:10,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 13] total 28 [2023-12-21 11:25:10,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275619353] [2023-12-21 11:25:10,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 11:25:10,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-21 11:25:10,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:25:10,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-21 11:25:10,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2023-12-21 11:25:10,514 INFO L87 Difference]: Start difference. First operand 1434 states and 1839 transitions. Second operand has 28 states, 28 states have (on average 8.571428571428571) internal successors, (240), 24 states have internal predecessors, (240), 8 states have call successors, (51), 9 states have call predecessors, (51), 13 states have return successors, (51), 11 states have call predecessors, (51), 8 states have call successors, (51) [2023-12-21 11:25:21,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:25:21,161 INFO L93 Difference]: Finished difference Result 10629 states and 14471 transitions. [2023-12-21 11:25:21,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2023-12-21 11:25:21,161 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 8.571428571428571) internal successors, (240), 24 states have internal predecessors, (240), 8 states have call successors, (51), 9 states have call predecessors, (51), 13 states have return successors, (51), 11 states have call predecessors, (51), 8 states have call successors, (51) Word has length 339 [2023-12-21 11:25:21,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:25:21,189 INFO L225 Difference]: With dead ends: 10629 [2023-12-21 11:25:21,189 INFO L226 Difference]: Without dead ends: 9495 [2023-12-21 11:25:21,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 940 GetRequests, 724 SyntacticMatches, 8 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16043 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=4891, Invalid=38999, Unknown=0, NotChecked=0, Total=43890 [2023-12-21 11:25:21,200 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 6666 mSDsluCounter, 6615 mSDsCounter, 0 mSdLazyCounter, 6208 mSolverCounterSat, 2089 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6666 SdHoareTripleChecker+Valid, 7156 SdHoareTripleChecker+Invalid, 8297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2089 IncrementalHoareTripleChecker+Valid, 6208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-21 11:25:21,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6666 Valid, 7156 Invalid, 8297 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2089 Valid, 6208 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-21 11:25:21,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9495 states. [2023-12-21 11:25:21,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9495 to 5945. [2023-12-21 11:25:21,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5945 states, 4697 states have (on average 1.2837981690440707) internal successors, (6030), 4751 states have internal predecessors, (6030), 891 states have call successors, (891), 332 states have call predecessors, (891), 356 states have return successors, (939), 861 states have call predecessors, (939), 891 states have call successors, (939) [2023-12-21 11:25:21,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5945 states to 5945 states and 7860 transitions. [2023-12-21 11:25:21,709 INFO L78 Accepts]: Start accepts. Automaton has 5945 states and 7860 transitions. Word has length 339 [2023-12-21 11:25:21,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:25:21,709 INFO L495 AbstractCegarLoop]: Abstraction has 5945 states and 7860 transitions. [2023-12-21 11:25:21,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 8.571428571428571) internal successors, (240), 24 states have internal predecessors, (240), 8 states have call successors, (51), 9 states have call predecessors, (51), 13 states have return successors, (51), 11 states have call predecessors, (51), 8 states have call successors, (51) [2023-12-21 11:25:21,710 INFO L276 IsEmpty]: Start isEmpty. Operand 5945 states and 7860 transitions. [2023-12-21 11:25:21,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2023-12-21 11:25:21,727 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:25:21,727 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:25:21,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-21 11:25:21,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-12-21 11:25:21,954 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:25:21,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:25:21,955 INFO L85 PathProgramCache]: Analyzing trace with hash -418385459, now seen corresponding path program 1 times [2023-12-21 11:25:21,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:25:21,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354856429] [2023-12-21 11:25:21,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:21,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:25:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:25:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:25:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:25:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:25:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:25:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:25:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:25:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:25:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:25:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:25:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:25:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:25:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:25:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:25:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:25:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:25:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:25:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:25:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:25:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-21 11:25:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-21 11:25:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-21 11:25:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-21 11:25:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-21 11:25:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-21 11:25:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-21 11:25:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-21 11:25:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-21 11:25:22,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,132 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 44 proven. 5 refuted. 0 times theorem prover too weak. 826 trivial. 0 not checked. [2023-12-21 11:25:22,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:25:22,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354856429] [2023-12-21 11:25:22,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354856429] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:25:22,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687642037] [2023-12-21 11:25:22,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:22,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:25:22,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:25:22,151 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:25:22,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-21 11:25:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:22,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 1217 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 11:25:22,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:25:22,462 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2023-12-21 11:25:22,462 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 11:25:22,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687642037] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:25:22,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 11:25:22,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2023-12-21 11:25:22,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116039264] [2023-12-21 11:25:22,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:25:22,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 11:25:22,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:25:22,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 11:25:22,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-21 11:25:22,464 INFO L87 Difference]: Start difference. First operand 5945 states and 7860 transitions. Second operand has 8 states, 8 states have (on average 15.25) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 11:25:23,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:25:23,164 INFO L93 Difference]: Finished difference Result 12859 states and 17105 transitions. [2023-12-21 11:25:23,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 11:25:23,165 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) Word has length 339 [2023-12-21 11:25:23,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:25:23,182 INFO L225 Difference]: With dead ends: 12859 [2023-12-21 11:25:23,182 INFO L226 Difference]: Without dead ends: 7399 [2023-12-21 11:25:23,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2023-12-21 11:25:23,190 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 164 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 11:25:23,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 2330 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 11:25:23,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7399 states. [2023-12-21 11:25:23,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7399 to 4218. [2023-12-21 11:25:23,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4218 states, 3381 states have (on average 1.259094942324756) internal successors, (4257), 3429 states have internal predecessors, (4257), 570 states have call successors, (570), 245 states have call predecessors, (570), 266 states have return successors, (600), 543 states have call predecessors, (600), 570 states have call successors, (600) [2023-12-21 11:25:23,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4218 states to 4218 states and 5427 transitions. [2023-12-21 11:25:23,508 INFO L78 Accepts]: Start accepts. Automaton has 4218 states and 5427 transitions. Word has length 339 [2023-12-21 11:25:23,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:25:23,508 INFO L495 AbstractCegarLoop]: Abstraction has 4218 states and 5427 transitions. [2023-12-21 11:25:23,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 11:25:23,508 INFO L276 IsEmpty]: Start isEmpty. Operand 4218 states and 5427 transitions. [2023-12-21 11:25:23,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-12-21 11:25:23,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:25:23,515 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:25:23,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-21 11:25:23,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:25:23,721 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:25:23,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:25:23,722 INFO L85 PathProgramCache]: Analyzing trace with hash 158160815, now seen corresponding path program 1 times [2023-12-21 11:25:23,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:25:23,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855379321] [2023-12-21 11:25:23,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:23,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:25:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:25:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:25:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:25:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:25:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:25:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:25:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:25:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:25:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:25:24,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:25:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:25:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:25:24,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:25:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:25:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:25:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:25:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:25:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-21 11:25:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-21 11:25:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 11:25:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-21 11:25:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-12-21 11:25:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-21 11:25:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-12-21 11:25:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-21 11:25:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 11:25:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-21 11:25:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-12-21 11:25:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,484 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 845 trivial. 0 not checked. [2023-12-21 11:25:24,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:25:24,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855379321] [2023-12-21 11:25:24,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855379321] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:25:24,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462702414] [2023-12-21 11:25:24,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:24,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:25:24,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:25:24,493 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:25:24,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-21 11:25:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:24,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-21 11:25:24,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:25:25,034 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 190 proven. 102 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2023-12-21 11:25:25,034 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 11:25:25,451 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 33 proven. 69 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2023-12-21 11:25:25,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462702414] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 11:25:25,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 11:25:25,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 30 [2023-12-21 11:25:25,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926961459] [2023-12-21 11:25:25,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 11:25:25,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-21 11:25:25,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:25:25,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-21 11:25:25,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=788, Unknown=0, NotChecked=0, Total=870 [2023-12-21 11:25:25,453 INFO L87 Difference]: Start difference. First operand 4218 states and 5427 transitions. Second operand has 30 states, 30 states have (on average 8.166666666666666) internal successors, (245), 26 states have internal predecessors, (245), 9 states have call successors, (54), 9 states have call predecessors, (54), 13 states have return successors, (54), 12 states have call predecessors, (54), 9 states have call successors, (54) [2023-12-21 11:25:57,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:25:57,397 INFO L93 Difference]: Finished difference Result 18341 states and 23671 transitions. [2023-12-21 11:25:57,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 473 states. [2023-12-21 11:25:57,397 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.166666666666666) internal successors, (245), 26 states have internal predecessors, (245), 9 states have call successors, (54), 9 states have call predecessors, (54), 13 states have return successors, (54), 12 states have call predecessors, (54), 9 states have call successors, (54) Word has length 340 [2023-12-21 11:25:57,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:25:57,425 INFO L225 Difference]: With dead ends: 18341 [2023-12-21 11:25:57,425 INFO L226 Difference]: Without dead ends: 14608 [2023-12-21 11:25:57,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1245 GetRequests, 745 SyntacticMatches, 1 SemanticMatches, 499 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109682 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=18823, Invalid=231677, Unknown=0, NotChecked=0, Total=250500 [2023-12-21 11:25:57,453 INFO L413 NwaCegarLoop]: 1015 mSDtfsCounter, 6179 mSDsluCounter, 13158 mSDsCounter, 0 mSdLazyCounter, 14009 mSolverCounterSat, 1943 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6179 SdHoareTripleChecker+Valid, 14173 SdHoareTripleChecker+Invalid, 15952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1943 IncrementalHoareTripleChecker+Valid, 14009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-12-21 11:25:57,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6179 Valid, 14173 Invalid, 15952 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1943 Valid, 14009 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-12-21 11:25:57,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14608 states. [2023-12-21 11:25:58,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14608 to 7404. [2023-12-21 11:25:58,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7404 states, 5933 states have (on average 1.2605764368784764) internal successors, (7479), 6018 states have internal predecessors, (7479), 981 states have call successors, (981), 434 states have call predecessors, (981), 489 states have return successors, (1066), 951 states have call predecessors, (1066), 981 states have call successors, (1066) [2023-12-21 11:25:58,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7404 states to 7404 states and 9526 transitions. [2023-12-21 11:25:58,339 INFO L78 Accepts]: Start accepts. Automaton has 7404 states and 9526 transitions. Word has length 340 [2023-12-21 11:25:58,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:25:58,340 INFO L495 AbstractCegarLoop]: Abstraction has 7404 states and 9526 transitions. [2023-12-21 11:25:58,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.166666666666666) internal successors, (245), 26 states have internal predecessors, (245), 9 states have call successors, (54), 9 states have call predecessors, (54), 13 states have return successors, (54), 12 states have call predecessors, (54), 9 states have call successors, (54) [2023-12-21 11:25:58,340 INFO L276 IsEmpty]: Start isEmpty. Operand 7404 states and 9526 transitions. [2023-12-21 11:25:58,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2023-12-21 11:25:58,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:25:58,351 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:25:58,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-21 11:25:58,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:25:58,558 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:25:58,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:25:58,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1632992118, now seen corresponding path program 1 times [2023-12-21 11:25:58,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:25:58,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565613542] [2023-12-21 11:25:58,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:25:58,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:25:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:25:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:25:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:25:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:25:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:25:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:25:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:25:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:25:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:25:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:25:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:25:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:25:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:25:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:25:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:25:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:25:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:25:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 11:25:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-21 11:25:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-21 11:25:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-21 11:25:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 11:25:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-21 11:25:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-21 11:25:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-21 11:25:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-21 11:25:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-12-21 11:25:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-21 11:25:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-21 11:25:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:25:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2023-12-21 11:25:58,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:25:58,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565613542] [2023-12-21 11:25:58,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565613542] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:25:58,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:25:58,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 11:25:58,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208207960] [2023-12-21 11:25:58,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:25:58,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 11:25:58,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:25:58,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 11:25:58,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:25:58,734 INFO L87 Difference]: Start difference. First operand 7404 states and 9526 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-21 11:25:59,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:25:59,756 INFO L93 Difference]: Finished difference Result 15052 states and 19331 transitions. [2023-12-21 11:25:59,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 11:25:59,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 341 [2023-12-21 11:25:59,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:25:59,778 INFO L225 Difference]: With dead ends: 15052 [2023-12-21 11:25:59,778 INFO L226 Difference]: Without dead ends: 7224 [2023-12-21 11:25:59,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 11:25:59,790 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 111 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 11:25:59,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 600 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 11:25:59,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7224 states. [2023-12-21 11:26:00,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7224 to 7224. [2023-12-21 11:26:00,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7224 states, 5808 states have (on average 1.2226239669421488) internal successors, (7101), 5873 states have internal predecessors, (7101), 981 states have call successors, (981), 434 states have call predecessors, (981), 434 states have return successors, (981), 916 states have call predecessors, (981), 981 states have call successors, (981) [2023-12-21 11:26:00,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7224 states to 7224 states and 9063 transitions. [2023-12-21 11:26:00,553 INFO L78 Accepts]: Start accepts. Automaton has 7224 states and 9063 transitions. Word has length 341 [2023-12-21 11:26:00,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:26:00,553 INFO L495 AbstractCegarLoop]: Abstraction has 7224 states and 9063 transitions. [2023-12-21 11:26:00,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-21 11:26:00,553 INFO L276 IsEmpty]: Start isEmpty. Operand 7224 states and 9063 transitions. [2023-12-21 11:26:00,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2023-12-21 11:26:00,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:26:00,566 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:26:00,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-21 11:26:00,566 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:26:00,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:26:00,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1276309712, now seen corresponding path program 1 times [2023-12-21 11:26:00,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:26:00,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616729189] [2023-12-21 11:26:00,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:26:00,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:26:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:26:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:26:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:26:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:26:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:26:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:26:01,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:26:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:26:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:26:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:26:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:26:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:26:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:26:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:26:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:26:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:26:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:26:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:26:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 11:26:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-21 11:26:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-21 11:26:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-21 11:26:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 11:26:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-21 11:26:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-21 11:26:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-21 11:26:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-21 11:26:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-12-21 11:26:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-21 11:26:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-21 11:26:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-21 11:26:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,219 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 22 proven. 25 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2023-12-21 11:26:01,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:26:01,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616729189] [2023-12-21 11:26:01,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616729189] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:26:01,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229256403] [2023-12-21 11:26:01,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:26:01,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:26:01,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:26:01,221 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:26:01,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-21 11:26:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:01,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 1245 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-21 11:26:01,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:26:01,785 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 258 proven. 89 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2023-12-21 11:26:01,785 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 11:26:02,235 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 56 proven. 52 refuted. 0 times theorem prover too weak. 821 trivial. 0 not checked. [2023-12-21 11:26:02,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229256403] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 11:26:02,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 11:26:02,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 13, 13] total 40 [2023-12-21 11:26:02,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960183063] [2023-12-21 11:26:02,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 11:26:02,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-21 11:26:02,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:26:02,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-21 11:26:02,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1459, Unknown=0, NotChecked=0, Total=1560 [2023-12-21 11:26:02,240 INFO L87 Difference]: Start difference. First operand 7224 states and 9063 transitions. Second operand has 40 states, 40 states have (on average 6.475) internal successors, (259), 34 states have internal predecessors, (259), 9 states have call successors, (56), 9 states have call predecessors, (56), 14 states have return successors, (56), 14 states have call predecessors, (56), 9 states have call successors, (56) [2023-12-21 11:26:28,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:26:28,892 INFO L93 Difference]: Finished difference Result 69403 states and 90457 transitions. [2023-12-21 11:26:28,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2023-12-21 11:26:28,892 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 6.475) internal successors, (259), 34 states have internal predecessors, (259), 9 states have call successors, (56), 9 states have call predecessors, (56), 14 states have return successors, (56), 14 states have call predecessors, (56), 9 states have call successors, (56) Word has length 351 [2023-12-21 11:26:28,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:26:29,046 INFO L225 Difference]: With dead ends: 69403 [2023-12-21 11:26:29,046 INFO L226 Difference]: Without dead ends: 62840 [2023-12-21 11:26:29,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1195 GetRequests, 796 SyntacticMatches, 1 SemanticMatches, 398 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65204 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=10001, Invalid=149599, Unknown=0, NotChecked=0, Total=159600 [2023-12-21 11:26:29,085 INFO L413 NwaCegarLoop]: 1110 mSDtfsCounter, 5421 mSDsluCounter, 25751 mSDsCounter, 0 mSdLazyCounter, 22973 mSolverCounterSat, 1424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5422 SdHoareTripleChecker+Valid, 26861 SdHoareTripleChecker+Invalid, 24397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1424 IncrementalHoareTripleChecker+Valid, 22973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-12-21 11:26:29,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5422 Valid, 26861 Invalid, 24397 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1424 Valid, 22973 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-12-21 11:26:29,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62840 states. [2023-12-21 11:26:32,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62840 to 20612. [2023-12-21 11:26:32,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20612 states, 16343 states have (on average 1.2273756348283669) internal successors, (20059), 16545 states have internal predecessors, (20059), 2996 states have call successors, (2996), 1272 states have call predecessors, (2996), 1272 states have return successors, (2996), 2794 states have call predecessors, (2996), 2996 states have call successors, (2996) [2023-12-21 11:26:32,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20612 states to 20612 states and 26051 transitions. [2023-12-21 11:26:32,361 INFO L78 Accepts]: Start accepts. Automaton has 20612 states and 26051 transitions. Word has length 351 [2023-12-21 11:26:32,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:26:32,361 INFO L495 AbstractCegarLoop]: Abstraction has 20612 states and 26051 transitions. [2023-12-21 11:26:32,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 6.475) internal successors, (259), 34 states have internal predecessors, (259), 9 states have call successors, (56), 9 states have call predecessors, (56), 14 states have return successors, (56), 14 states have call predecessors, (56), 9 states have call successors, (56) [2023-12-21 11:26:32,362 INFO L276 IsEmpty]: Start isEmpty. Operand 20612 states and 26051 transitions. [2023-12-21 11:26:32,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2023-12-21 11:26:32,399 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:26:32,399 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:26:32,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-21 11:26:32,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:26:32,605 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:26:32,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:26:32,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1787904709, now seen corresponding path program 1 times [2023-12-21 11:26:32,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:26:32,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486915922] [2023-12-21 11:26:32,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:26:32,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:26:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:26:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:26:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:26:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:26:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:26:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:26:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:26:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:26:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:26:32,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:26:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:26:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:26:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:26:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:26:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:26:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:26:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:26:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:26:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:26:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-21 11:26:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-21 11:26:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 11:26:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-21 11:26:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-12-21 11:26:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-21 11:26:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-12-21 11:26:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-21 11:26:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-12-21 11:26:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-21 11:26:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-21 11:26:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-21 11:26:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:32,926 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2023-12-21 11:26:32,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:26:32,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486915922] [2023-12-21 11:26:32,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486915922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:26:32,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:26:32,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 11:26:32,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723015800] [2023-12-21 11:26:32,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:26:32,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 11:26:32,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:26:32,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 11:26:32,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 11:26:32,928 INFO L87 Difference]: Start difference. First operand 20612 states and 26051 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 8 states have internal predecessors, (119), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-21 11:26:37,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:26:37,298 INFO L93 Difference]: Finished difference Result 42461 states and 54523 transitions. [2023-12-21 11:26:37,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-21 11:26:37,298 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 8 states have internal predecessors, (119), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) Word has length 351 [2023-12-21 11:26:37,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:26:37,448 INFO L225 Difference]: With dead ends: 42461 [2023-12-21 11:26:37,449 INFO L226 Difference]: Without dead ends: 24756 [2023-12-21 11:26:37,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=579, Unknown=0, NotChecked=0, Total=702 [2023-12-21 11:26:37,507 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 359 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 2048 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 2393 SdHoareTripleChecker+Invalid, 2114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 11:26:37,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 2393 Invalid, 2114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2048 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 11:26:37,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24756 states. [2023-12-21 11:26:39,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24756 to 10779. [2023-12-21 11:26:39,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10779 states, 8674 states have (on average 1.2151256629006226) internal successors, (10540), 8769 states have internal predecessors, (10540), 1452 states have call successors, (1452), 652 states have call predecessors, (1452), 652 states have return successors, (1452), 1357 states have call predecessors, (1452), 1452 states have call successors, (1452) [2023-12-21 11:26:39,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10779 states to 10779 states and 13444 transitions. [2023-12-21 11:26:39,188 INFO L78 Accepts]: Start accepts. Automaton has 10779 states and 13444 transitions. Word has length 351 [2023-12-21 11:26:39,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:26:39,188 INFO L495 AbstractCegarLoop]: Abstraction has 10779 states and 13444 transitions. [2023-12-21 11:26:39,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 8 states have internal predecessors, (119), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-21 11:26:39,189 INFO L276 IsEmpty]: Start isEmpty. Operand 10779 states and 13444 transitions. [2023-12-21 11:26:39,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2023-12-21 11:26:39,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:26:39,212 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:26:39,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-21 11:26:39,212 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:26:39,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:26:39,213 INFO L85 PathProgramCache]: Analyzing trace with hash 73729596, now seen corresponding path program 1 times [2023-12-21 11:26:39,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:26:39,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504357208] [2023-12-21 11:26:39,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:26:39,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:26:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:26:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:26:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:26:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:26:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:26:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:26:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:26:39,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:26:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:26:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:26:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:26:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:26:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:26:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:26:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:26:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:26:39,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:26:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-21 11:26:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-21 11:26:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-21 11:26:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-21 11:26:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-21 11:26:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 11:26:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-21 11:26:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-21 11:26:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-21 11:26:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-21 11:26:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-12-21 11:26:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-21 11:26:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-21 11:26:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-21 11:26:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:39,414 INFO L134 CoverageAnalysis]: Checked inductivity of 932 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 925 trivial. 0 not checked. [2023-12-21 11:26:39,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:26:39,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504357208] [2023-12-21 11:26:39,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504357208] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:26:39,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:26:39,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:26:39,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987544438] [2023-12-21 11:26:39,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:26:39,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:26:39,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:26:39,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:26:39,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:26:39,416 INFO L87 Difference]: Start difference. First operand 10779 states and 13444 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-21 11:26:40,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:26:40,418 INFO L93 Difference]: Finished difference Result 14978 states and 18704 transitions. [2023-12-21 11:26:40,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 11:26:40,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 351 [2023-12-21 11:26:40,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:26:40,431 INFO L225 Difference]: With dead ends: 14978 [2023-12-21 11:26:40,431 INFO L226 Difference]: Without dead ends: 5071 [2023-12-21 11:26:40,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:26:40,439 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 58 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 11:26:40,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 452 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 11:26:40,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5071 states. [2023-12-21 11:26:41,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5071 to 5071. [2023-12-21 11:26:41,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5071 states, 4095 states have (on average 1.204151404151404) internal successors, (4931), 4141 states have internal predecessors, (4931), 669 states have call successors, (669), 306 states have call predecessors, (669), 306 states have return successors, (669), 623 states have call predecessors, (669), 669 states have call successors, (669) [2023-12-21 11:26:41,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5071 states to 5071 states and 6269 transitions. [2023-12-21 11:26:41,132 INFO L78 Accepts]: Start accepts. Automaton has 5071 states and 6269 transitions. Word has length 351 [2023-12-21 11:26:41,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:26:41,132 INFO L495 AbstractCegarLoop]: Abstraction has 5071 states and 6269 transitions. [2023-12-21 11:26:41,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-21 11:26:41,132 INFO L276 IsEmpty]: Start isEmpty. Operand 5071 states and 6269 transitions. [2023-12-21 11:26:41,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2023-12-21 11:26:41,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:26:41,139 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:26:41,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-21 11:26:41,139 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:26:41,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:26:41,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1273018611, now seen corresponding path program 1 times [2023-12-21 11:26:41,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:26:41,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260032604] [2023-12-21 11:26:41,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:26:41,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:26:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:26:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:26:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:26:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:26:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:26:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:26:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:26:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:26:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:26:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:26:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:26:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:26:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:26:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:26:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:26:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:26:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:26:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:26:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-21 11:26:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-21 11:26:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-21 11:26:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-21 11:26:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-21 11:26:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-21 11:26:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-21 11:26:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-21 11:26:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-12-21 11:26:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-21 11:26:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-21 11:26:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2023-12-21 11:26:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-21 11:26:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:41,328 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2023-12-21 11:26:41,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:26:41,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260032604] [2023-12-21 11:26:41,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260032604] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:26:41,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:26:41,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:26:41,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886291750] [2023-12-21 11:26:41,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:26:41,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:26:41,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:26:41,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:26:41,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:26:41,330 INFO L87 Difference]: Start difference. First operand 5071 states and 6269 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 11:26:42,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:26:42,034 INFO L93 Difference]: Finished difference Result 8202 states and 10145 transitions. [2023-12-21 11:26:42,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 11:26:42,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 352 [2023-12-21 11:26:42,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:26:42,043 INFO L225 Difference]: With dead ends: 8202 [2023-12-21 11:26:42,043 INFO L226 Difference]: Without dead ends: 3439 [2023-12-21 11:26:42,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:26:42,052 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 58 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 11:26:42,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 446 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 11:26:42,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3439 states. [2023-12-21 11:26:42,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3439 to 3439. [2023-12-21 11:26:42,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 2776 states have (on average 1.1952449567723342) internal successors, (3318), 2807 states have internal predecessors, (3318), 449 states have call successors, (449), 213 states have call predecessors, (449), 213 states have return successors, (449), 418 states have call predecessors, (449), 449 states have call successors, (449) [2023-12-21 11:26:42,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 4216 transitions. [2023-12-21 11:26:42,587 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 4216 transitions. Word has length 352 [2023-12-21 11:26:42,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:26:42,587 INFO L495 AbstractCegarLoop]: Abstraction has 3439 states and 4216 transitions. [2023-12-21 11:26:42,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 11:26:42,587 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 4216 transitions. [2023-12-21 11:26:42,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-12-21 11:26:42,593 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:26:42,593 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 9, 8, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:26:42,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-21 11:26:42,593 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:26:42,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:26:42,593 INFO L85 PathProgramCache]: Analyzing trace with hash -532515220, now seen corresponding path program 1 times [2023-12-21 11:26:42,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:26:42,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644296289] [2023-12-21 11:26:42,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:26:42,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:26:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:26:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:26:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:26:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:26:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:26:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:26:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:26:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:26:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:26:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:26:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:26:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:26:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:26:42,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:26:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:26:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:26:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:26:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:26:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 11:26:42,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-21 11:26:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-21 11:26:42,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-21 11:26:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 11:26:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-21 11:26:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-21 11:26:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-21 11:26:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-21 11:26:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-12-21 11:26:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-21 11:26:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-21 11:26:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-21 11:26:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-12-21 11:26:42,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:42,778 INFO L134 CoverageAnalysis]: Checked inductivity of 944 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 908 trivial. 0 not checked. [2023-12-21 11:26:42,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:26:42,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644296289] [2023-12-21 11:26:42,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644296289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:26:42,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:26:42,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 11:26:42,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779053649] [2023-12-21 11:26:42,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:26:42,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 11:26:42,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:26:42,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 11:26:42,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 11:26:42,779 INFO L87 Difference]: Start difference. First operand 3439 states and 4216 transitions. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 7 states have internal predecessors, (118), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-21 11:26:43,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:26:43,909 INFO L93 Difference]: Finished difference Result 6325 states and 7784 transitions. [2023-12-21 11:26:43,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 11:26:43,909 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 7 states have internal predecessors, (118), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 356 [2023-12-21 11:26:43,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:26:43,915 INFO L225 Difference]: With dead ends: 6325 [2023-12-21 11:26:43,915 INFO L226 Difference]: Without dead ends: 3759 [2023-12-21 11:26:43,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-21 11:26:43,921 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 199 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 11:26:43,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 1314 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 11:26:43,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3759 states. [2023-12-21 11:26:44,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3759 to 3445. [2023-12-21 11:26:44,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3445 states, 2782 states have (on average 1.194823867721064) internal successors, (3324), 2810 states have internal predecessors, (3324), 449 states have call successors, (449), 213 states have call predecessors, (449), 213 states have return successors, (449), 421 states have call predecessors, (449), 449 states have call successors, (449) [2023-12-21 11:26:44,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3445 states to 3445 states and 4222 transitions. [2023-12-21 11:26:44,411 INFO L78 Accepts]: Start accepts. Automaton has 3445 states and 4222 transitions. Word has length 356 [2023-12-21 11:26:44,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:26:44,412 INFO L495 AbstractCegarLoop]: Abstraction has 3445 states and 4222 transitions. [2023-12-21 11:26:44,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 7 states have internal predecessors, (118), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-21 11:26:44,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3445 states and 4222 transitions. [2023-12-21 11:26:44,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-12-21 11:26:44,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:26:44,416 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 9, 8, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:26:44,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-21 11:26:44,417 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:26:44,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:26:44,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1249363977, now seen corresponding path program 1 times [2023-12-21 11:26:44,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:26:44,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542835610] [2023-12-21 11:26:44,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:26:44,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:26:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:26:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:26:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:26:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:26:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:26:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:26:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:26:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:26:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:26:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:26:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:26:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:26:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:26:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:26:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:26:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:26:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:26:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:26:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:26:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-21 11:26:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-21 11:26:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 11:26:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-21 11:26:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-12-21 11:26:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-21 11:26:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-12-21 11:26:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-21 11:26:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-12-21 11:26:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-21 11:26:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-21 11:26:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-21 11:26:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-12-21 11:26:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,688 INFO L134 CoverageAnalysis]: Checked inductivity of 943 backedges. 45 proven. 18 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2023-12-21 11:26:44,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:26:44,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542835610] [2023-12-21 11:26:44,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542835610] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:26:44,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289562218] [2023-12-21 11:26:44,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:26:44,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:26:44,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:26:44,690 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:26:44,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-21 11:26:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:44,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 1268 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-21 11:26:44,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:26:45,319 INFO L134 CoverageAnalysis]: Checked inductivity of 943 backedges. 127 proven. 203 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2023-12-21 11:26:45,320 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 11:26:45,578 INFO L134 CoverageAnalysis]: Checked inductivity of 943 backedges. 17 proven. 30 refuted. 0 times theorem prover too weak. 896 trivial. 0 not checked. [2023-12-21 11:26:45,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289562218] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 11:26:45,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 11:26:45,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 22 [2023-12-21 11:26:45,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067521595] [2023-12-21 11:26:45,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 11:26:45,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-21 11:26:45,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:26:45,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-21 11:26:45,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2023-12-21 11:26:45,580 INFO L87 Difference]: Start difference. First operand 3445 states and 4222 transitions. Second operand has 22 states, 22 states have (on average 11.636363636363637) internal successors, (256), 18 states have internal predecessors, (256), 8 states have call successors, (61), 7 states have call predecessors, (61), 10 states have return successors, (60), 11 states have call predecessors, (60), 8 states have call successors, (60) [2023-12-21 11:26:49,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:26:49,490 INFO L93 Difference]: Finished difference Result 13479 states and 16749 transitions. [2023-12-21 11:26:49,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-12-21 11:26:49,491 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.636363636363637) internal successors, (256), 18 states have internal predecessors, (256), 8 states have call successors, (61), 7 states have call predecessors, (61), 10 states have return successors, (60), 11 states have call predecessors, (60), 8 states have call successors, (60) Word has length 356 [2023-12-21 11:26:49,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:26:49,508 INFO L225 Difference]: With dead ends: 13479 [2023-12-21 11:26:49,508 INFO L226 Difference]: Without dead ends: 10862 [2023-12-21 11:26:49,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 853 GetRequests, 766 SyntacticMatches, 9 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1809 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=633, Invalid=5687, Unknown=0, NotChecked=0, Total=6320 [2023-12-21 11:26:49,512 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 1749 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 3129 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1765 SdHoareTripleChecker+Valid, 3709 SdHoareTripleChecker+Invalid, 3483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 3129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 11:26:49,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1765 Valid, 3709 Invalid, 3483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 3129 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 11:26:49,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10862 states. [2023-12-21 11:26:50,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10862 to 5874. [2023-12-21 11:26:50,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5874 states, 4749 states have (on average 1.1937249947357338) internal successors, (5669), 4795 states have internal predecessors, (5669), 764 states have call successors, (764), 360 states have call predecessors, (764), 360 states have return successors, (764), 718 states have call predecessors, (764), 764 states have call successors, (764) [2023-12-21 11:26:50,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5874 states to 5874 states and 7197 transitions. [2023-12-21 11:26:50,454 INFO L78 Accepts]: Start accepts. Automaton has 5874 states and 7197 transitions. Word has length 356 [2023-12-21 11:26:50,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:26:50,455 INFO L495 AbstractCegarLoop]: Abstraction has 5874 states and 7197 transitions. [2023-12-21 11:26:50,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.636363636363637) internal successors, (256), 18 states have internal predecessors, (256), 8 states have call successors, (61), 7 states have call predecessors, (61), 10 states have return successors, (60), 11 states have call predecessors, (60), 8 states have call successors, (60) [2023-12-21 11:26:50,455 INFO L276 IsEmpty]: Start isEmpty. Operand 5874 states and 7197 transitions. [2023-12-21 11:26:50,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2023-12-21 11:26:50,463 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:26:50,463 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 8, 8, 8, 8, 7, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:26:50,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-21 11:26:50,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-12-21 11:26:50,669 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:26:50,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:26:50,670 INFO L85 PathProgramCache]: Analyzing trace with hash -839540350, now seen corresponding path program 1 times [2023-12-21 11:26:50,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:26:50,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465806622] [2023-12-21 11:26:50,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:26:50,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:26:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:26:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:26:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:26:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:26:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:26:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:26:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:26:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:26:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:26:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:26:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:26:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:26:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:26:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:26:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:26:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:26:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:26:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:26:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:26:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:26:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:26:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-21 11:26:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-21 11:26:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-21 11:26:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-21 11:26:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-21 11:26:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-21 11:26:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-21 11:26:50,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-21 11:26:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-21 11:26:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-21 11:26:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-21 11:26:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:50,901 INFO L134 CoverageAnalysis]: Checked inductivity of 969 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2023-12-21 11:26:50,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:26:50,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465806622] [2023-12-21 11:26:50,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465806622] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:26:50,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752086474] [2023-12-21 11:26:50,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:26:50,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:26:50,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:26:50,930 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:26:50,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-21 11:26:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:51,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 1276 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 11:26:51,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:26:51,215 INFO L134 CoverageAnalysis]: Checked inductivity of 969 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked. [2023-12-21 11:26:51,215 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 11:26:51,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752086474] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:26:51,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 11:26:51,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 11 [2023-12-21 11:26:51,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561189833] [2023-12-21 11:26:51,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:26:51,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 11:26:51,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:26:51,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 11:26:51,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 11:26:51,216 INFO L87 Difference]: Start difference. First operand 5874 states and 7197 transitions. Second operand has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 3 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-21 11:26:53,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:26:53,164 INFO L93 Difference]: Finished difference Result 13416 states and 16658 transitions. [2023-12-21 11:26:53,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 11:26:53,165 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 3 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 360 [2023-12-21 11:26:53,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:26:53,212 INFO L225 Difference]: With dead ends: 13416 [2023-12-21 11:26:53,212 INFO L226 Difference]: Without dead ends: 8421 [2023-12-21 11:26:53,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2023-12-21 11:26:53,232 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 397 mSDsluCounter, 2395 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 11:26:53,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 2885 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 11:26:53,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8421 states. [2023-12-21 11:26:54,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8421 to 5790. [2023-12-21 11:26:54,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5790 states, 4683 states have (on average 1.1836429639120223) internal successors, (5543), 4729 states have internal predecessors, (5543), 746 states have call successors, (746), 360 states have call predecessors, (746), 360 states have return successors, (746), 700 states have call predecessors, (746), 746 states have call successors, (746) [2023-12-21 11:26:54,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5790 states to 5790 states and 7035 transitions. [2023-12-21 11:26:54,258 INFO L78 Accepts]: Start accepts. Automaton has 5790 states and 7035 transitions. Word has length 360 [2023-12-21 11:26:54,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:26:54,259 INFO L495 AbstractCegarLoop]: Abstraction has 5790 states and 7035 transitions. [2023-12-21 11:26:54,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.0) internal successors, (135), 8 states have internal predecessors, (135), 3 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-21 11:26:54,259 INFO L276 IsEmpty]: Start isEmpty. Operand 5790 states and 7035 transitions. [2023-12-21 11:26:54,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2023-12-21 11:26:54,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:26:54,268 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 8, 8, 8, 8, 7, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:26:54,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-21 11:26:54,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-12-21 11:26:54,492 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:26:54,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:26:54,492 INFO L85 PathProgramCache]: Analyzing trace with hash -2001658971, now seen corresponding path program 1 times [2023-12-21 11:26:54,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:26:54,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078748392] [2023-12-21 11:26:54,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:26:54,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:26:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:26:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:26:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:26:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:26:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:26:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:26:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:26:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:26:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:26:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:26:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:26:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:26:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:26:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:26:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:26:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:26:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:26:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:26:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 11:26:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-21 11:26:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-21 11:26:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-21 11:26:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 11:26:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-21 11:26:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-21 11:26:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-21 11:26:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-21 11:26:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-12-21 11:26:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-21 11:26:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-21 11:26:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-21 11:26:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-21 11:26:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:54,978 INFO L134 CoverageAnalysis]: Checked inductivity of 966 backedges. 26 proven. 64 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2023-12-21 11:26:54,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:26:54,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078748392] [2023-12-21 11:26:54,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078748392] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:26:54,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615896952] [2023-12-21 11:26:54,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:26:54,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:26:54,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:26:54,979 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:26:54,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-21 11:26:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:26:55,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-21 11:26:55,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:26:55,353 INFO L134 CoverageAnalysis]: Checked inductivity of 966 backedges. 303 proven. 72 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2023-12-21 11:26:55,353 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 11:26:55,777 INFO L134 CoverageAnalysis]: Checked inductivity of 966 backedges. 31 proven. 70 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2023-12-21 11:26:55,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615896952] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 11:26:55,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 11:26:55,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 23 [2023-12-21 11:26:55,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437471612] [2023-12-21 11:26:55,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 11:26:55,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-21 11:26:55,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:26:55,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-21 11:26:55,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2023-12-21 11:26:55,780 INFO L87 Difference]: Start difference. First operand 5790 states and 7035 transitions. Second operand has 23 states, 23 states have (on average 9.173913043478262) internal successors, (211), 19 states have internal predecessors, (211), 5 states have call successors, (46), 9 states have call predecessors, (46), 14 states have return successors, (43), 8 states have call predecessors, (43), 5 states have call successors, (43) [2023-12-21 11:26:58,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:26:58,899 INFO L93 Difference]: Finished difference Result 11196 states and 13560 transitions. [2023-12-21 11:26:58,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-21 11:26:58,900 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.173913043478262) internal successors, (211), 19 states have internal predecessors, (211), 5 states have call successors, (46), 9 states have call predecessors, (46), 14 states have return successors, (43), 8 states have call predecessors, (43), 5 states have call successors, (43) Word has length 362 [2023-12-21 11:26:58,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:26:58,910 INFO L225 Difference]: With dead ends: 11196 [2023-12-21 11:26:58,910 INFO L226 Difference]: Without dead ends: 6084 [2023-12-21 11:26:58,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 841 GetRequests, 774 SyntacticMatches, 10 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=616, Invalid=2806, Unknown=0, NotChecked=0, Total=3422 [2023-12-21 11:26:58,917 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 1361 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 2477 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 2951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 2477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 11:26:58,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 3898 Invalid, 2951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 2477 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 11:26:58,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6084 states. [2023-12-21 11:26:59,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6084 to 4698. [2023-12-21 11:26:59,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4698 states, 3810 states have (on average 1.1826771653543307) internal successors, (4506), 3850 states have internal predecessors, (4506), 581 states have call successors, (581), 306 states have call predecessors, (581), 306 states have return successors, (581), 541 states have call predecessors, (581), 581 states have call successors, (581) [2023-12-21 11:26:59,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4698 states to 4698 states and 5668 transitions. [2023-12-21 11:26:59,842 INFO L78 Accepts]: Start accepts. Automaton has 4698 states and 5668 transitions. Word has length 362 [2023-12-21 11:26:59,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:26:59,843 INFO L495 AbstractCegarLoop]: Abstraction has 4698 states and 5668 transitions. [2023-12-21 11:26:59,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.173913043478262) internal successors, (211), 19 states have internal predecessors, (211), 5 states have call successors, (46), 9 states have call predecessors, (46), 14 states have return successors, (43), 8 states have call predecessors, (43), 5 states have call successors, (43) [2023-12-21 11:26:59,843 INFO L276 IsEmpty]: Start isEmpty. Operand 4698 states and 5668 transitions. [2023-12-21 11:26:59,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2023-12-21 11:26:59,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:26:59,847 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 8, 8, 8, 8, 7, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:26:59,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-21 11:27:00,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:27:00,054 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:27:00,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:27:00,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1688213804, now seen corresponding path program 1 times [2023-12-21 11:27:00,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:27:00,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329287679] [2023-12-21 11:27:00,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:27:00,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:27:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:27:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:27:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:27:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:27:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:27:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:27:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:27:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:27:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:27:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:27:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:27:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:27:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:27:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:27:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:27:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:27:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:27:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:27:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:27:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-21 11:27:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-21 11:27:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-21 11:27:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-21 11:27:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-21 11:27:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-21 11:27:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 11:27:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-21 11:27:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-21 11:27:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2023-12-21 11:27:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2023-12-21 11:27:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:00,250 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2023-12-21 11:27:00,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:27:00,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329287679] [2023-12-21 11:27:00,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329287679] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:27:00,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:27:00,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 11:27:00,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336657605] [2023-12-21 11:27:00,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:27:00,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 11:27:00,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:27:00,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 11:27:00,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 11:27:00,252 INFO L87 Difference]: Start difference. First operand 4698 states and 5668 transitions. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 8 states have internal predecessors, (120), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-21 11:27:02,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:27:02,822 INFO L93 Difference]: Finished difference Result 11674 states and 14267 transitions. [2023-12-21 11:27:02,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-21 11:27:02,823 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 8 states have internal predecessors, (120), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 362 [2023-12-21 11:27:02,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:27:02,835 INFO L225 Difference]: With dead ends: 11674 [2023-12-21 11:27:02,835 INFO L226 Difference]: Without dead ends: 7735 [2023-12-21 11:27:02,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2023-12-21 11:27:02,840 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 402 mSDsluCounter, 2185 mSDsCounter, 0 mSdLazyCounter, 1931 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 2607 SdHoareTripleChecker+Invalid, 1991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 11:27:02,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 2607 Invalid, 1991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1931 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 11:27:02,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7735 states. [2023-12-21 11:27:03,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7735 to 4182. [2023-12-21 11:27:03,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4182 states, 3396 states have (on average 1.1769729093050647) internal successors, (3997), 3430 states have internal predecessors, (3997), 509 states have call successors, (509), 276 states have call predecessors, (509), 276 states have return successors, (509), 475 states have call predecessors, (509), 509 states have call successors, (509) [2023-12-21 11:27:03,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4182 states to 4182 states and 5015 transitions. [2023-12-21 11:27:03,677 INFO L78 Accepts]: Start accepts. Automaton has 4182 states and 5015 transitions. Word has length 362 [2023-12-21 11:27:03,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:27:03,678 INFO L495 AbstractCegarLoop]: Abstraction has 4182 states and 5015 transitions. [2023-12-21 11:27:03,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 8 states have internal predecessors, (120), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-21 11:27:03,678 INFO L276 IsEmpty]: Start isEmpty. Operand 4182 states and 5015 transitions. [2023-12-21 11:27:03,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2023-12-21 11:27:03,682 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:27:03,682 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:27:03,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-21 11:27:03,682 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:27:03,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:27:03,683 INFO L85 PathProgramCache]: Analyzing trace with hash 961791557, now seen corresponding path program 1 times [2023-12-21 11:27:03,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:27:03,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174789688] [2023-12-21 11:27:03,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:27:03,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:27:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:27:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:27:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:27:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:27:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:27:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:27:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:27:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:27:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:27:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:27:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:27:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:27:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:27:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:27:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:27:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:27:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 11:27:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-21 11:27:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-21 11:27:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-21 11:27:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-21 11:27:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-21 11:27:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-21 11:27:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-21 11:27:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-12-21 11:27:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-21 11:27:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-21 11:27:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2023-12-21 11:27:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-21 11:27:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-21 11:27:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,225 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 22 proven. 25 refuted. 0 times theorem prover too weak. 947 trivial. 0 not checked. [2023-12-21 11:27:04,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:27:04,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174789688] [2023-12-21 11:27:04,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174789688] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:27:04,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304040157] [2023-12-21 11:27:04,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:27:04,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:27:04,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:27:04,227 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:27:04,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-21 11:27:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:04,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 1271 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-21 11:27:04,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:27:04,877 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 371 proven. 118 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2023-12-21 11:27:04,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 11:27:05,494 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 42 proven. 208 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2023-12-21 11:27:05,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304040157] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 11:27:05,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 11:27:05,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 14, 18] total 46 [2023-12-21 11:27:05,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323770992] [2023-12-21 11:27:05,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 11:27:05,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-21 11:27:05,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:27:05,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-21 11:27:05,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1953, Unknown=0, NotChecked=0, Total=2070 [2023-12-21 11:27:05,497 INFO L87 Difference]: Start difference. First operand 4182 states and 5015 transitions. Second operand has 46 states, 45 states have (on average 6.7555555555555555) internal successors, (304), 39 states have internal predecessors, (304), 12 states have call successors, (66), 10 states have call predecessors, (66), 12 states have return successors, (67), 16 states have call predecessors, (67), 11 states have call successors, (67) [2023-12-21 11:27:17,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:27:17,668 INFO L93 Difference]: Finished difference Result 17718 states and 22130 transitions. [2023-12-21 11:27:17,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2023-12-21 11:27:17,669 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 6.7555555555555555) internal successors, (304), 39 states have internal predecessors, (304), 12 states have call successors, (66), 10 states have call predecessors, (66), 12 states have return successors, (67), 16 states have call predecessors, (67), 11 states have call successors, (67) Word has length 363 [2023-12-21 11:27:17,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:27:17,696 INFO L225 Difference]: With dead ends: 17718 [2023-12-21 11:27:17,697 INFO L226 Difference]: Without dead ends: 13985 [2023-12-21 11:27:17,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1017 GetRequests, 781 SyntacticMatches, 0 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19121 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=3058, Invalid=53348, Unknown=0, NotChecked=0, Total=56406 [2023-12-21 11:27:17,717 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 2817 mSDsluCounter, 12551 mSDsCounter, 0 mSdLazyCounter, 12610 mSolverCounterSat, 885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2831 SdHoareTripleChecker+Valid, 12998 SdHoareTripleChecker+Invalid, 13495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 885 IncrementalHoareTripleChecker+Valid, 12610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-21 11:27:17,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2831 Valid, 12998 Invalid, 13495 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [885 Valid, 12610 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-21 11:27:17,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13985 states. [2023-12-21 11:27:18,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13985 to 4499. [2023-12-21 11:27:18,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4499 states, 3669 states have (on average 1.1714363586808394) internal successors, (4298), 3703 states have internal predecessors, (4298), 533 states have call successors, (533), 294 states have call predecessors, (533), 296 states have return successors, (537), 501 states have call predecessors, (537), 533 states have call successors, (537) [2023-12-21 11:27:18,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4499 states to 4499 states and 5368 transitions. [2023-12-21 11:27:18,785 INFO L78 Accepts]: Start accepts. Automaton has 4499 states and 5368 transitions. Word has length 363 [2023-12-21 11:27:18,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:27:18,786 INFO L495 AbstractCegarLoop]: Abstraction has 4499 states and 5368 transitions. [2023-12-21 11:27:18,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 6.7555555555555555) internal successors, (304), 39 states have internal predecessors, (304), 12 states have call successors, (66), 10 states have call predecessors, (66), 12 states have return successors, (67), 16 states have call predecessors, (67), 11 states have call successors, (67) [2023-12-21 11:27:18,792 INFO L276 IsEmpty]: Start isEmpty. Operand 4499 states and 5368 transitions. [2023-12-21 11:27:18,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-12-21 11:27:18,796 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:27:18,796 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 9, 9, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:27:18,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-12-21 11:27:19,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2023-12-21 11:27:19,002 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:27:19,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:27:19,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1377644083, now seen corresponding path program 1 times [2023-12-21 11:27:19,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:27:19,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505255233] [2023-12-21 11:27:19,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:27:19,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:27:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:27:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:27:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 11:27:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-21 11:27:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 11:27:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:27:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:27:19,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:27:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 11:27:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:27:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:27:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 11:27:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:27:19,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:27:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-21 11:27:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:27:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-21 11:27:19,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-21 11:27:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-21 11:27:19,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-21 11:27:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-21 11:27:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-21 11:27:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-21 11:27:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-21 11:27:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-12-21 11:27:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-21 11:27:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2023-12-21 11:27:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-21 11:27:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2023-12-21 11:27:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2023-12-21 11:27:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-12-21 11:27:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1002 backedges. 9 proven. 128 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2023-12-21 11:27:19,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:27:19,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505255233] [2023-12-21 11:27:19,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505255233] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:27:19,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370436323] [2023-12-21 11:27:19,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:27:19,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:27:19,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:27:19,110 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:27:19,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-21 11:27:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:19,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 1292 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 11:27:19,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:27:19,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1002 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 923 trivial. 0 not checked. [2023-12-21 11:27:19,343 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 11:27:19,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370436323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:27:19,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 11:27:19,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2023-12-21 11:27:19,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366993846] [2023-12-21 11:27:19,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:27:19,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:27:19,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:27:19,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:27:19,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:27:19,344 INFO L87 Difference]: Start difference. First operand 4499 states and 5368 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 11:27:20,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:27:20,240 INFO L93 Difference]: Finished difference Result 8683 states and 10385 transitions. [2023-12-21 11:27:20,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:27:20,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 367 [2023-12-21 11:27:20,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:27:20,247 INFO L225 Difference]: With dead ends: 8683 [2023-12-21 11:27:20,248 INFO L226 Difference]: Without dead ends: 4184 [2023-12-21 11:27:20,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 11:27:20,251 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 28 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:27:20,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 619 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:27:20,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4184 states. [2023-12-21 11:27:21,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4184 to 4184. [2023-12-21 11:27:21,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4184 states, 3397 states have (on average 1.1748601707388873) internal successors, (3991), 3431 states have internal predecessors, (3991), 509 states have call successors, (509), 277 states have call predecessors, (509), 277 states have return successors, (509), 475 states have call predecessors, (509), 509 states have call successors, (509) [2023-12-21 11:27:21,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4184 states to 4184 states and 5009 transitions. [2023-12-21 11:27:21,084 INFO L78 Accepts]: Start accepts. Automaton has 4184 states and 5009 transitions. Word has length 367 [2023-12-21 11:27:21,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:27:21,085 INFO L495 AbstractCegarLoop]: Abstraction has 4184 states and 5009 transitions. [2023-12-21 11:27:21,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 11:27:21,085 INFO L276 IsEmpty]: Start isEmpty. Operand 4184 states and 5009 transitions. [2023-12-21 11:27:21,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2023-12-21 11:27:21,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:27:21,089 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 9, 9, 7, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:27:21,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-12-21 11:27:21,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:27:21,296 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:27:21,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:27:21,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1837910402, now seen corresponding path program 1 times [2023-12-21 11:27:21,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:27:21,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894053587] [2023-12-21 11:27:21,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:27:21,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:27:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:27:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:27:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:27:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:27:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:27:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:27:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:27:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:27:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:27:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:27:21,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:27:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:27:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:27:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:21,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:27:21,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:27:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:27:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:27:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-21 11:27:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-21 11:27:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-21 11:27:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-21 11:27:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-21 11:27:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-21 11:27:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-21 11:27:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-12-21 11:27:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-21 11:27:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-21 11:27:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-21 11:27:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-21 11:27:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-21 11:27:21,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-12-21 11:27:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2023-12-21 11:27:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2023-12-21 11:27:21,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:27:21,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894053587] [2023-12-21 11:27:21,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894053587] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:27:21,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386460048] [2023-12-21 11:27:21,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:27:21,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:27:21,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:27:21,483 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:27:21,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-21 11:27:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:21,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 1317 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-21 11:27:21,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:27:21,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2023-12-21 11:27:21,775 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 11:27:21,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386460048] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:27:21,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 11:27:21,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 11 [2023-12-21 11:27:21,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788226496] [2023-12-21 11:27:21,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:27:21,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 11:27:21,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:27:21,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 11:27:21,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 11:27:21,776 INFO L87 Difference]: Start difference. First operand 4184 states and 5009 transitions. Second operand has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 7 states have internal predecessors, (140), 3 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) [2023-12-21 11:27:22,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:27:22,948 INFO L93 Difference]: Finished difference Result 8179 states and 9826 transitions. [2023-12-21 11:27:22,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 11:27:22,949 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 7 states have internal predecessors, (140), 3 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) Word has length 374 [2023-12-21 11:27:22,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:27:22,956 INFO L225 Difference]: With dead ends: 8179 [2023-12-21 11:27:22,957 INFO L226 Difference]: Without dead ends: 4756 [2023-12-21 11:27:22,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-12-21 11:27:22,967 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 106 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2249 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 11:27:22,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2249 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 11:27:22,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4756 states. [2023-12-21 11:27:23,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4756 to 4157. [2023-12-21 11:27:23,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4157 states, 3379 states have (on average 1.1722403077833679) internal successors, (3961), 3413 states have internal predecessors, (3961), 500 states have call successors, (500), 277 states have call predecessors, (500), 277 states have return successors, (500), 466 states have call predecessors, (500), 500 states have call successors, (500) [2023-12-21 11:27:23,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4157 states to 4157 states and 4961 transitions. [2023-12-21 11:27:23,835 INFO L78 Accepts]: Start accepts. Automaton has 4157 states and 4961 transitions. Word has length 374 [2023-12-21 11:27:23,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:27:23,835 INFO L495 AbstractCegarLoop]: Abstraction has 4157 states and 4961 transitions. [2023-12-21 11:27:23,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 7 states have internal predecessors, (140), 3 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) [2023-12-21 11:27:23,835 INFO L276 IsEmpty]: Start isEmpty. Operand 4157 states and 4961 transitions. [2023-12-21 11:27:23,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2023-12-21 11:27:23,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:27:23,856 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 9, 9, 8, 8, 8, 7, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:27:23,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-12-21 11:27:24,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:27:24,062 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:27:24,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:27:24,062 INFO L85 PathProgramCache]: Analyzing trace with hash -905848209, now seen corresponding path program 1 times [2023-12-21 11:27:24,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:27:24,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766881013] [2023-12-21 11:27:24,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:27:24,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:27:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:27:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:27:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:27:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:27:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:27:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:27:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:27:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:27:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:27:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:27:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:27:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:27:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:27:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:27:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:27:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:27:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:27:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:27:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:27:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 11:27:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-21 11:27:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-21 11:27:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-21 11:27:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-21 11:27:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-21 11:27:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-21 11:27:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-21 11:27:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-21 11:27:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-21 11:27:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-12-21 11:27:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-12-21 11:27:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:24,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1021 trivial. 0 not checked. [2023-12-21 11:27:24,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:27:24,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766881013] [2023-12-21 11:27:24,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766881013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:27:24,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:27:24,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:27:24,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220960731] [2023-12-21 11:27:24,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:27:24,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:27:24,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:27:24,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:27:24,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:27:24,186 INFO L87 Difference]: Start difference. First operand 4157 states and 4961 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-21 11:27:25,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:27:25,467 INFO L93 Difference]: Finished difference Result 8506 states and 10145 transitions. [2023-12-21 11:27:25,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:27:25,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 373 [2023-12-21 11:27:25,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:27:25,475 INFO L225 Difference]: With dead ends: 8506 [2023-12-21 11:27:25,475 INFO L226 Difference]: Without dead ends: 5110 [2023-12-21 11:27:25,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:27:25,478 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 173 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 11:27:25,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 573 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 11:27:25,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5110 states. [2023-12-21 11:27:26,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5110 to 4133. [2023-12-21 11:27:26,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4133 states, 3355 states have (on average 1.1627421758569298) internal successors, (3901), 3389 states have internal predecessors, (3901), 500 states have call successors, (500), 277 states have call predecessors, (500), 277 states have return successors, (500), 466 states have call predecessors, (500), 500 states have call successors, (500) [2023-12-21 11:27:26,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4133 states to 4133 states and 4901 transitions. [2023-12-21 11:27:26,338 INFO L78 Accepts]: Start accepts. Automaton has 4133 states and 4901 transitions. Word has length 373 [2023-12-21 11:27:26,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:27:26,338 INFO L495 AbstractCegarLoop]: Abstraction has 4133 states and 4901 transitions. [2023-12-21 11:27:26,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-21 11:27:26,339 INFO L276 IsEmpty]: Start isEmpty. Operand 4133 states and 4901 transitions. [2023-12-21 11:27:26,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2023-12-21 11:27:26,342 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:27:26,342 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 9, 9, 7, 7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:27:26,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-21 11:27:26,343 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:27:26,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:27:26,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1773431246, now seen corresponding path program 1 times [2023-12-21 11:27:26,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:27:26,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392250243] [2023-12-21 11:27:26,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:27:26,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:27:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:27:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:27:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:27:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:27:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:27:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:27:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:27:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:27:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:27:26,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:27:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:27:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:27:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:27:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:27:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:27:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:27:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 11:27:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-21 11:27:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-21 11:27:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-21 11:27:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-21 11:27:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-21 11:27:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-21 11:27:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-21 11:27:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-21 11:27:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-21 11:27:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2023-12-21 11:27:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-21 11:27:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-21 11:27:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-12-21 11:27:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2023-12-21 11:27:26,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:26,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 22 proven. 25 refuted. 0 times theorem prover too weak. 1016 trivial. 0 not checked. [2023-12-21 11:27:26,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:27:26,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392250243] [2023-12-21 11:27:26,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392250243] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:27:26,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236348965] [2023-12-21 11:27:26,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:27:26,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:27:26,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:27:26,933 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:27:26,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-21 11:27:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:27,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 1297 conjuncts, 68 conjunts are in the unsatisfiable core [2023-12-21 11:27:27,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:27:28,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 524 proven. 227 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-21 11:27:28,131 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 11:27:29,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 101 proven. 200 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2023-12-21 11:27:29,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236348965] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 11:27:29,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 11:27:29,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 27, 22] total 64 [2023-12-21 11:27:29,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223067494] [2023-12-21 11:27:29,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 11:27:29,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2023-12-21 11:27:29,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:27:29,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2023-12-21 11:27:29,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=3790, Unknown=0, NotChecked=0, Total=4032 [2023-12-21 11:27:29,269 INFO L87 Difference]: Start difference. First operand 4133 states and 4901 transitions. Second operand has 64 states, 64 states have (on average 6.015625) internal successors, (385), 55 states have internal predecessors, (385), 18 states have call successors, (69), 13 states have call predecessors, (69), 19 states have return successors, (73), 25 states have call predecessors, (73), 18 states have call successors, (73) [2023-12-21 11:27:42,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:27:42,182 INFO L93 Difference]: Finished difference Result 14501 states and 17525 transitions. [2023-12-21 11:27:42,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2023-12-21 11:27:42,183 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 6.015625) internal successors, (385), 55 states have internal predecessors, (385), 18 states have call successors, (69), 13 states have call predecessors, (69), 19 states have return successors, (73), 25 states have call predecessors, (73), 18 states have call successors, (73) Word has length 374 [2023-12-21 11:27:42,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:27:42,198 INFO L225 Difference]: With dead ends: 14501 [2023-12-21 11:27:42,199 INFO L226 Difference]: Without dead ends: 10819 [2023-12-21 11:27:42,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 994 GetRequests, 787 SyntacticMatches, 0 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12330 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=2760, Invalid=40712, Unknown=0, NotChecked=0, Total=43472 [2023-12-21 11:27:42,206 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 2217 mSDsluCounter, 15824 mSDsCounter, 0 mSdLazyCounter, 16330 mSolverCounterSat, 689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2227 SdHoareTripleChecker+Valid, 16283 SdHoareTripleChecker+Invalid, 17019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 16330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-21 11:27:42,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2227 Valid, 16283 Invalid, 17019 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [689 Valid, 16330 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-12-21 11:27:42,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10819 states. [2023-12-21 11:27:43,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10819 to 4139. [2023-12-21 11:27:43,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4139 states, 3360 states have (on average 1.161309523809524) internal successors, (3902), 3394 states have internal predecessors, (3902), 500 states have call successors, (500), 278 states have call predecessors, (500), 278 states have return successors, (500), 466 states have call predecessors, (500), 500 states have call successors, (500) [2023-12-21 11:27:43,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 4902 transitions. [2023-12-21 11:27:43,136 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 4902 transitions. Word has length 374 [2023-12-21 11:27:43,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:27:43,136 INFO L495 AbstractCegarLoop]: Abstraction has 4139 states and 4902 transitions. [2023-12-21 11:27:43,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 6.015625) internal successors, (385), 55 states have internal predecessors, (385), 18 states have call successors, (69), 13 states have call predecessors, (69), 19 states have return successors, (73), 25 states have call predecessors, (73), 18 states have call successors, (73) [2023-12-21 11:27:43,137 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 4902 transitions. [2023-12-21 11:27:43,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-21 11:27:43,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:27:43,141 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 10, 9, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:27:43,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-12-21 11:27:43,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:27:43,348 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:27:43,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:27:43,348 INFO L85 PathProgramCache]: Analyzing trace with hash 892834989, now seen corresponding path program 1 times [2023-12-21 11:27:43,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:27:43,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351724030] [2023-12-21 11:27:43,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:27:43,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:27:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:27:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:27:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:27:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:27:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:27:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:27:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:27:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:27:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:27:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:27:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:27:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:27:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:27:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:27:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:27:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:27:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 11:27:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-21 11:27:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-21 11:27:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-21 11:27:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-21 11:27:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-21 11:27:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-21 11:27:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-21 11:27:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-21 11:27:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-21 11:27:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-21 11:27:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-12-21 11:27:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-12-21 11:27:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2023-12-21 11:27:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-12-21 11:27:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-21 11:27:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:43,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1130 trivial. 0 not checked. [2023-12-21 11:27:43,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:27:43,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351724030] [2023-12-21 11:27:43,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351724030] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:27:43,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:27:43,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:27:43,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575382986] [2023-12-21 11:27:43,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:27:43,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:27:43,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:27:43,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:27:43,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:27:43,509 INFO L87 Difference]: Start difference. First operand 4139 states and 4902 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-21 11:27:44,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:27:44,520 INFO L93 Difference]: Finished difference Result 7817 states and 9278 transitions. [2023-12-21 11:27:44,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 11:27:44,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 385 [2023-12-21 11:27:44,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:27:44,528 INFO L225 Difference]: With dead ends: 7817 [2023-12-21 11:27:44,528 INFO L226 Difference]: Without dead ends: 4068 [2023-12-21 11:27:44,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:27:44,533 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 55 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 11:27:44,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 440 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 11:27:44,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4068 states. [2023-12-21 11:27:45,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4068 to 4068. [2023-12-21 11:27:45,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4068 states, 3303 states have (on average 1.1559188616409324) internal successors, (3818), 3336 states have internal predecessors, (3818), 491 states have call successors, (491), 273 states have call predecessors, (491), 273 states have return successors, (491), 458 states have call predecessors, (491), 491 states have call successors, (491) [2023-12-21 11:27:45,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4068 states to 4068 states and 4800 transitions. [2023-12-21 11:27:45,392 INFO L78 Accepts]: Start accepts. Automaton has 4068 states and 4800 transitions. Word has length 385 [2023-12-21 11:27:45,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:27:45,392 INFO L495 AbstractCegarLoop]: Abstraction has 4068 states and 4800 transitions. [2023-12-21 11:27:45,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-21 11:27:45,393 INFO L276 IsEmpty]: Start isEmpty. Operand 4068 states and 4800 transitions. [2023-12-21 11:27:45,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-21 11:27:45,396 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:27:45,396 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 10, 9, 8, 8, 8, 7, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:27:45,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-21 11:27:45,397 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:27:45,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:27:45,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1100580121, now seen corresponding path program 1 times [2023-12-21 11:27:45,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:27:45,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263956790] [2023-12-21 11:27:45,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:27:45,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:27:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:27:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:27:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:27:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:27:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:27:45,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:27:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:27:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:27:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:27:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:27:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:27:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:27:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:27:45,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:45,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:27:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:27:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:27:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:27:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:27:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:27:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 11:27:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 11:27:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-21 11:27:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-21 11:27:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-21 11:27:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-21 11:27:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-12-21 11:27:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2023-12-21 11:27:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-21 11:27:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-21 11:27:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-12-21 11:27:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-21 11:27:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-12-21 11:27:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2023-12-21 11:27:45,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:27:45,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263956790] [2023-12-21 11:27:45,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263956790] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:27:45,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124599834] [2023-12-21 11:27:45,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:27:45,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:27:45,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:27:45,577 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:27:45,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-21 11:27:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:45,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 1335 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 11:27:45,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:27:45,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 829 trivial. 0 not checked. [2023-12-21 11:27:45,872 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 11:27:45,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124599834] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:27:45,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 11:27:45,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 11 [2023-12-21 11:27:45,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222445433] [2023-12-21 11:27:45,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:27:45,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 11:27:45,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:27:45,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 11:27:45,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 11:27:45,873 INFO L87 Difference]: Start difference. First operand 4068 states and 4800 transitions. Second operand has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 8 states have internal predecessors, (147), 3 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2023-12-21 11:27:47,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:27:47,401 INFO L93 Difference]: Finished difference Result 8955 states and 10615 transitions. [2023-12-21 11:27:47,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 11:27:47,401 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 8 states have internal predecessors, (147), 3 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 385 [2023-12-21 11:27:47,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:27:47,425 INFO L225 Difference]: With dead ends: 8955 [2023-12-21 11:27:47,425 INFO L226 Difference]: Without dead ends: 5583 [2023-12-21 11:27:47,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2023-12-21 11:27:47,429 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 362 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 2192 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 11:27:47,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 2192 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 11:27:47,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5583 states. [2023-12-21 11:27:48,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5583 to 4050. [2023-12-21 11:27:48,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4050 states, 3291 states have (on average 1.1510179276815558) internal successors, (3788), 3324 states have internal predecessors, (3788), 485 states have call successors, (485), 273 states have call predecessors, (485), 273 states have return successors, (485), 452 states have call predecessors, (485), 485 states have call successors, (485) [2023-12-21 11:27:48,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4050 states to 4050 states and 4758 transitions. [2023-12-21 11:27:48,336 INFO L78 Accepts]: Start accepts. Automaton has 4050 states and 4758 transitions. Word has length 385 [2023-12-21 11:27:48,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:27:48,337 INFO L495 AbstractCegarLoop]: Abstraction has 4050 states and 4758 transitions. [2023-12-21 11:27:48,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 8 states have internal predecessors, (147), 3 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2023-12-21 11:27:48,337 INFO L276 IsEmpty]: Start isEmpty. Operand 4050 states and 4758 transitions. [2023-12-21 11:27:48,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-21 11:27:48,340 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:27:48,341 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 10, 9, 8, 8, 8, 7, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:27:48,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-12-21 11:27:48,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-12-21 11:27:48,548 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:27:48,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:27:48,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1200242469, now seen corresponding path program 1 times [2023-12-21 11:27:48,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:27:48,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453215434] [2023-12-21 11:27:48,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:27:48,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:27:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:27:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:27:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:27:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:27:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:27:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:27:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:27:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:27:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:27:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:27:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:27:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:27:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:27:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:27:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:27:48,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:27:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:27:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:27:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:27:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 11:27:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 11:27:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-21 11:27:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-21 11:27:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-21 11:27:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-21 11:27:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-12-21 11:27:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2023-12-21 11:27:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-21 11:27:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-21 11:27:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-12-21 11:27:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-21 11:27:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-12-21 11:27:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:48,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2023-12-21 11:27:48,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:27:48,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453215434] [2023-12-21 11:27:48,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453215434] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:27:48,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:27:48,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 11:27:48,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968148489] [2023-12-21 11:27:48,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:27:48,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 11:27:48,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:27:48,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 11:27:48,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 11:27:48,752 INFO L87 Difference]: Start difference. First operand 4050 states and 4758 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 8 states have internal predecessors, (126), 3 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-21 11:27:50,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:27:50,888 INFO L93 Difference]: Finished difference Result 9223 states and 10897 transitions. [2023-12-21 11:27:50,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-21 11:27:50,888 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 8 states have internal predecessors, (126), 3 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 385 [2023-12-21 11:27:50,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:27:50,897 INFO L225 Difference]: With dead ends: 9223 [2023-12-21 11:27:50,897 INFO L226 Difference]: Without dead ends: 5869 [2023-12-21 11:27:50,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2023-12-21 11:27:50,901 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 421 mSDsluCounter, 1648 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 11:27:50,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 1942 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 11:27:50,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5869 states. [2023-12-21 11:27:51,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5869 to 4026. [2023-12-21 11:27:51,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4026 states, 3267 states have (on average 1.1484542393633304) internal successors, (3752), 3300 states have internal predecessors, (3752), 485 states have call successors, (485), 273 states have call predecessors, (485), 273 states have return successors, (485), 452 states have call predecessors, (485), 485 states have call successors, (485) [2023-12-21 11:27:51,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4026 states to 4026 states and 4722 transitions. [2023-12-21 11:27:51,770 INFO L78 Accepts]: Start accepts. Automaton has 4026 states and 4722 transitions. Word has length 385 [2023-12-21 11:27:51,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:27:51,771 INFO L495 AbstractCegarLoop]: Abstraction has 4026 states and 4722 transitions. [2023-12-21 11:27:51,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 8 states have internal predecessors, (126), 3 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-21 11:27:51,771 INFO L276 IsEmpty]: Start isEmpty. Operand 4026 states and 4722 transitions. [2023-12-21 11:27:51,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-21 11:27:51,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:27:51,775 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 10, 9, 8, 8, 8, 7, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:27:51,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-12-21 11:27:51,775 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:27:51,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:27:51,775 INFO L85 PathProgramCache]: Analyzing trace with hash 807215459, now seen corresponding path program 1 times [2023-12-21 11:27:51,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:27:51,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464738294] [2023-12-21 11:27:51,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:27:51,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:27:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:27:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:27:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:27:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:27:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:27:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:27:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:27:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:27:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:27:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:27:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:27:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:27:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:27:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:27:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:27:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:27:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:27:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:27:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:27:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 11:27:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 11:27:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-21 11:27:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-21 11:27:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-21 11:27:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-21 11:27:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-12-21 11:27:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2023-12-21 11:27:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-21 11:27:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-21 11:27:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-12-21 11:27:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-21 11:27:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-12-21 11:27:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:51,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1109 trivial. 0 not checked. [2023-12-21 11:27:51,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:27:51,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464738294] [2023-12-21 11:27:51,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464738294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:27:51,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:27:51,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 11:27:51,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439396578] [2023-12-21 11:27:51,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:27:51,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 11:27:51,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:27:51,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 11:27:51,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:27:51,914 INFO L87 Difference]: Start difference. First operand 4026 states and 4722 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 4 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-21 11:27:53,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:27:53,039 INFO L93 Difference]: Finished difference Result 7530 states and 8908 transitions. [2023-12-21 11:27:53,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:27:53,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 4 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 385 [2023-12-21 11:27:53,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:27:53,047 INFO L225 Difference]: With dead ends: 7530 [2023-12-21 11:27:53,048 INFO L226 Difference]: Without dead ends: 4200 [2023-12-21 11:27:53,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:27:53,052 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 74 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 11:27:53,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 648 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 11:27:53,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4200 states. [2023-12-21 11:27:53,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4200 to 4017. [2023-12-21 11:27:53,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4017 states, 3258 states have (on average 1.1414978514426029) internal successors, (3719), 3291 states have internal predecessors, (3719), 485 states have call successors, (485), 273 states have call predecessors, (485), 273 states have return successors, (485), 452 states have call predecessors, (485), 485 states have call successors, (485) [2023-12-21 11:27:53,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4017 states to 4017 states and 4689 transitions. [2023-12-21 11:27:53,924 INFO L78 Accepts]: Start accepts. Automaton has 4017 states and 4689 transitions. Word has length 385 [2023-12-21 11:27:53,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:27:53,925 INFO L495 AbstractCegarLoop]: Abstraction has 4017 states and 4689 transitions. [2023-12-21 11:27:53,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 4 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-21 11:27:53,925 INFO L276 IsEmpty]: Start isEmpty. Operand 4017 states and 4689 transitions. [2023-12-21 11:27:53,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-21 11:27:53,928 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:27:53,929 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 10, 9, 8, 8, 8, 7, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:27:53,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-21 11:27:53,929 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:27:53,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:27:53,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1169385252, now seen corresponding path program 1 times [2023-12-21 11:27:53,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:27:53,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232765684] [2023-12-21 11:27:53,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:27:53,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:27:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:53,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:27:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:53,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:27:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:53,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:27:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:53,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:27:53,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:53,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:27:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:53,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:27:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:53,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:27:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:53,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:27:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:53,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:27:53,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:53,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:27:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:53,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:53,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:27:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:53,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:27:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:53,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:27:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:27:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:27:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:27:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:27:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:27:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:27:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 11:27:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 11:27:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-21 11:27:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-21 11:27:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-21 11:27:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-21 11:27:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-12-21 11:27:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2023-12-21 11:27:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-21 11:27:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-21 11:27:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-12-21 11:27:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-21 11:27:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-12-21 11:27:54,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:54,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2023-12-21 11:27:54,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:27:54,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232765684] [2023-12-21 11:27:54,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232765684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:27:54,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:27:54,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 11:27:54,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077676397] [2023-12-21 11:27:54,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:27:54,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 11:27:54,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:27:54,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 11:27:54,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 11:27:54,036 INFO L87 Difference]: Start difference. First operand 4017 states and 4689 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-21 11:27:55,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:27:55,536 INFO L93 Difference]: Finished difference Result 8885 states and 10364 transitions. [2023-12-21 11:27:55,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 11:27:55,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 385 [2023-12-21 11:27:55,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:27:55,544 INFO L225 Difference]: With dead ends: 8885 [2023-12-21 11:27:55,544 INFO L226 Difference]: Without dead ends: 5564 [2023-12-21 11:27:55,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 11:27:55,548 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 162 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 11:27:55,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 581 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 11:27:55,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5564 states. [2023-12-21 11:27:56,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5564 to 4443. [2023-12-21 11:27:56,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4443 states, 3594 states have (on average 1.1346688925987758) internal successors, (4078), 3633 states have internal predecessors, (4078), 545 states have call successors, (545), 303 states have call predecessors, (545), 303 states have return successors, (545), 506 states have call predecessors, (545), 545 states have call successors, (545) [2023-12-21 11:27:56,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4443 states to 4443 states and 5168 transitions. [2023-12-21 11:27:56,516 INFO L78 Accepts]: Start accepts. Automaton has 4443 states and 5168 transitions. Word has length 385 [2023-12-21 11:27:56,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:27:56,517 INFO L495 AbstractCegarLoop]: Abstraction has 4443 states and 5168 transitions. [2023-12-21 11:27:56,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-21 11:27:56,517 INFO L276 IsEmpty]: Start isEmpty. Operand 4443 states and 5168 transitions. [2023-12-21 11:27:56,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-21 11:27:56,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:27:56,521 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 10, 9, 8, 8, 8, 7, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:27:56,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-21 11:27:56,521 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:27:56,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:27:56,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1757222876, now seen corresponding path program 1 times [2023-12-21 11:27:56,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:27:56,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054459793] [2023-12-21 11:27:56,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:27:56,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:27:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:27:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:27:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:27:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:27:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:27:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:27:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:27:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:27:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:27:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:27:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:27:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:27:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:27:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:27:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:27:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:27:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:27:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:27:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 11:27:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-21 11:27:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 11:27:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 11:27:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-21 11:27:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-21 11:27:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-21 11:27:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-21 11:27:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-12-21 11:27:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2023-12-21 11:27:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-21 11:27:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-21 11:27:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-12-21 11:27:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-21 11:27:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-12-21 11:27:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:56,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 56 proven. 50 refuted. 0 times theorem prover too weak. 1007 trivial. 0 not checked. [2023-12-21 11:27:56,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:27:56,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054459793] [2023-12-21 11:27:56,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054459793] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:27:56,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364349815] [2023-12-21 11:27:56,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:27:56,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:27:56,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:27:56,934 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:27:56,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-12-21 11:27:57,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:27:57,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 1334 conjuncts, 68 conjunts are in the unsatisfiable core [2023-12-21 11:27:57,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:27:58,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 582 proven. 249 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2023-12-21 11:27:58,092 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 11:27:59,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 163 proven. 154 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2023-12-21 11:27:59,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364349815] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 11:27:59,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 11:27:59,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 26, 21] total 54 [2023-12-21 11:27:59,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462383286] [2023-12-21 11:27:59,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 11:27:59,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2023-12-21 11:27:59,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:27:59,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2023-12-21 11:27:59,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=2651, Unknown=0, NotChecked=0, Total=2862 [2023-12-21 11:27:59,035 INFO L87 Difference]: Start difference. First operand 4443 states and 5168 transitions. Second operand has 54 states, 54 states have (on average 7.462962962962963) internal successors, (403), 45 states have internal predecessors, (403), 15 states have call successors, (70), 11 states have call predecessors, (70), 24 states have return successors, (75), 23 states have call predecessors, (75), 15 states have call successors, (75) [2023-12-21 11:28:09,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:28:09,234 INFO L93 Difference]: Finished difference Result 16160 states and 19109 transitions. [2023-12-21 11:28:09,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2023-12-21 11:28:09,236 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 7.462962962962963) internal successors, (403), 45 states have internal predecessors, (403), 15 states have call successors, (70), 11 states have call predecessors, (70), 24 states have return successors, (75), 23 states have call predecessors, (75), 15 states have call successors, (75) Word has length 385 [2023-12-21 11:28:09,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:28:09,256 INFO L225 Difference]: With dead ends: 16160 [2023-12-21 11:28:09,256 INFO L226 Difference]: Without dead ends: 12121 [2023-12-21 11:28:09,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 987 GetRequests, 811 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9346 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=2551, Invalid=28955, Unknown=0, NotChecked=0, Total=31506 [2023-12-21 11:28:09,265 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 2368 mSDsluCounter, 8292 mSDsCounter, 0 mSdLazyCounter, 6508 mSolverCounterSat, 693 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2377 SdHoareTripleChecker+Valid, 8558 SdHoareTripleChecker+Invalid, 7201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 693 IncrementalHoareTripleChecker+Valid, 6508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-21 11:28:09,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2377 Valid, 8558 Invalid, 7201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [693 Valid, 6508 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-21 11:28:09,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12121 states. [2023-12-21 11:28:10,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12121 to 6390. [2023-12-21 11:28:10,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6390 states, 5191 states have (on average 1.1325370834136004) internal successors, (5879), 5243 states have internal predecessors, (5879), 759 states have call successors, (759), 439 states have call predecessors, (759), 439 states have return successors, (759), 707 states have call predecessors, (759), 759 states have call successors, (759) [2023-12-21 11:28:10,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6390 states to 6390 states and 7397 transitions. [2023-12-21 11:28:10,885 INFO L78 Accepts]: Start accepts. Automaton has 6390 states and 7397 transitions. Word has length 385 [2023-12-21 11:28:10,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:28:10,885 INFO L495 AbstractCegarLoop]: Abstraction has 6390 states and 7397 transitions. [2023-12-21 11:28:10,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 7.462962962962963) internal successors, (403), 45 states have internal predecessors, (403), 15 states have call successors, (70), 11 states have call predecessors, (70), 24 states have return successors, (75), 23 states have call predecessors, (75), 15 states have call successors, (75) [2023-12-21 11:28:10,885 INFO L276 IsEmpty]: Start isEmpty. Operand 6390 states and 7397 transitions. [2023-12-21 11:28:10,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2023-12-21 11:28:10,892 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:28:10,892 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 11, 11, 11, 10, 10, 9, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:28:10,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-12-21 11:28:11,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:28:11,099 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:28:11,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:28:11,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1447222884, now seen corresponding path program 1 times [2023-12-21 11:28:11,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:28:11,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960472146] [2023-12-21 11:28:11,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:28:11,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:28:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:28:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:28:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:28:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:28:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:28:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:28:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:28:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:28:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:28:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:28:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:28:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:28:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:28:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:28:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:28:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:28:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:28:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:28:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-21 11:28:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-21 11:28:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-21 11:28:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-21 11:28:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-21 11:28:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-21 11:28:11,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-21 11:28:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-21 11:28:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-12-21 11:28:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-21 11:28:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-12-21 11:28:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-21 11:28:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-12-21 11:28:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-12-21 11:28:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-21 11:28:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2023-12-21 11:28:11,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-12-21 11:28:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2023-12-21 11:28:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-12-21 11:28:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 47 proven. 32 refuted. 0 times theorem prover too weak. 1180 trivial. 0 not checked. [2023-12-21 11:28:11,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:28:11,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960472146] [2023-12-21 11:28:11,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960472146] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:28:11,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260877519] [2023-12-21 11:28:11,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:28:11,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:28:11,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:28:11,785 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:28:11,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-12-21 11:28:11,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:11,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 1431 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-21 11:28:11,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:28:12,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 525 proven. 80 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2023-12-21 11:28:12,320 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 11:28:12,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 90 proven. 33 refuted. 0 times theorem prover too weak. 1136 trivial. 0 not checked. [2023-12-21 11:28:12,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260877519] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 11:28:12,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 11:28:12,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 12, 12] total 37 [2023-12-21 11:28:12,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108185369] [2023-12-21 11:28:12,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 11:28:12,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-12-21 11:28:12,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:28:12,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-12-21 11:28:12,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=1230, Unknown=0, NotChecked=0, Total=1332 [2023-12-21 11:28:12,662 INFO L87 Difference]: Start difference. First operand 6390 states and 7397 transitions. Second operand has 37 states, 37 states have (on average 7.972972972972973) internal successors, (295), 31 states have internal predecessors, (295), 10 states have call successors, (70), 7 states have call predecessors, (70), 13 states have return successors, (70), 15 states have call predecessors, (70), 10 states have call successors, (70) [2023-12-21 11:28:36,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:28:36,244 INFO L93 Difference]: Finished difference Result 37572 states and 44107 transitions. [2023-12-21 11:28:36,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 271 states. [2023-12-21 11:28:36,244 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 7.972972972972973) internal successors, (295), 31 states have internal predecessors, (295), 10 states have call successors, (70), 7 states have call predecessors, (70), 13 states have return successors, (70), 15 states have call predecessors, (70), 10 states have call successors, (70) Word has length 414 [2023-12-21 11:28:36,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:28:36,306 INFO L225 Difference]: With dead ends: 37572 [2023-12-21 11:28:36,306 INFO L226 Difference]: Without dead ends: 32026 [2023-12-21 11:28:36,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1223 GetRequests, 919 SyntacticMatches, 1 SemanticMatches, 303 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36536 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=6415, Invalid=86305, Unknown=0, NotChecked=0, Total=92720 [2023-12-21 11:28:36,323 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 4552 mSDsluCounter, 12851 mSDsCounter, 0 mSdLazyCounter, 14462 mSolverCounterSat, 1265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4553 SdHoareTripleChecker+Valid, 13520 SdHoareTripleChecker+Invalid, 15727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1265 IncrementalHoareTripleChecker+Valid, 14462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-21 11:28:36,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4553 Valid, 13520 Invalid, 15727 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1265 Valid, 14462 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-12-21 11:28:36,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32026 states. [2023-12-21 11:28:38,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32026 to 9666. [2023-12-21 11:28:38,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9666 states, 7890 states have (on average 1.1337135614702154) internal successors, (8945), 7963 states have internal predecessors, (8945), 1104 states have call successors, (1104), 671 states have call predecessors, (1104), 671 states have return successors, (1104), 1031 states have call predecessors, (1104), 1104 states have call successors, (1104) [2023-12-21 11:28:39,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9666 states to 9666 states and 11153 transitions. [2023-12-21 11:28:39,007 INFO L78 Accepts]: Start accepts. Automaton has 9666 states and 11153 transitions. Word has length 414 [2023-12-21 11:28:39,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:28:39,008 INFO L495 AbstractCegarLoop]: Abstraction has 9666 states and 11153 transitions. [2023-12-21 11:28:39,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 7.972972972972973) internal successors, (295), 31 states have internal predecessors, (295), 10 states have call successors, (70), 7 states have call predecessors, (70), 13 states have return successors, (70), 15 states have call predecessors, (70), 10 states have call successors, (70) [2023-12-21 11:28:39,008 INFO L276 IsEmpty]: Start isEmpty. Operand 9666 states and 11153 transitions. [2023-12-21 11:28:39,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2023-12-21 11:28:39,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:28:39,016 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 11, 11, 11, 10, 9, 9, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:28:39,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-12-21 11:28:39,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2023-12-21 11:28:39,222 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:28:39,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:28:39,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1210423597, now seen corresponding path program 1 times [2023-12-21 11:28:39,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:28:39,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183246788] [2023-12-21 11:28:39,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:28:39,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:28:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:28:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:28:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:28:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:28:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:28:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:28:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:28:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:28:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:28:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:28:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:28:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:28:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:28:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:28:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:28:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:28:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:28:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:28:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 11:28:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-21 11:28:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-21 11:28:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-21 11:28:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-21 11:28:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-21 11:28:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-21 11:28:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-21 11:28:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-21 11:28:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-21 11:28:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-12-21 11:28:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2023-12-21 11:28:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-12-21 11:28:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2023-12-21 11:28:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2023-12-21 11:28:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-12-21 11:28:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2023-12-21 11:28:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2023-12-21 11:28:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-12-21 11:28:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2023-12-21 11:28:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:39,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 24 proven. 23 refuted. 0 times theorem prover too weak. 1264 trivial. 0 not checked. [2023-12-21 11:28:39,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:28:39,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183246788] [2023-12-21 11:28:39,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183246788] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:28:39,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033621791] [2023-12-21 11:28:39,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:28:39,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:28:39,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:28:39,930 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:28:39,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-12-21 11:28:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:40,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 1432 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-21 11:28:40,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:28:40,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 632 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2023-12-21 11:28:40,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 11:28:40,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033621791] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:28:40,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 11:28:40,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [17] total 25 [2023-12-21 11:28:40,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383731349] [2023-12-21 11:28:40,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:28:40,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 11:28:40,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:28:40,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 11:28:40,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=548, Unknown=0, NotChecked=0, Total=600 [2023-12-21 11:28:40,460 INFO L87 Difference]: Start difference. First operand 9666 states and 11153 transitions. Second operand has 10 states, 10 states have (on average 17.7) internal successors, (177), 9 states have internal predecessors, (177), 4 states have call successors, (30), 4 states have call predecessors, (30), 5 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2023-12-21 11:28:43,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:28:43,257 INFO L93 Difference]: Finished difference Result 18149 states and 20994 transitions. [2023-12-21 11:28:43,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 11:28:43,258 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.7) internal successors, (177), 9 states have internal predecessors, (177), 4 states have call successors, (30), 4 states have call predecessors, (30), 5 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) Word has length 417 [2023-12-21 11:28:43,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:28:43,277 INFO L225 Difference]: With dead ends: 18149 [2023-12-21 11:28:43,280 INFO L226 Difference]: Without dead ends: 10386 [2023-12-21 11:28:43,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=1073, Unknown=0, NotChecked=0, Total=1190 [2023-12-21 11:28:43,290 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 235 mSDsluCounter, 1715 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 11:28:43,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 1978 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 11:28:43,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10386 states. [2023-12-21 11:28:45,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10386 to 9648. [2023-12-21 11:28:45,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9648 states, 7880 states have (on average 1.1328680203045685) internal successors, (8927), 7950 states have internal predecessors, (8927), 1096 states have call successors, (1096), 671 states have call predecessors, (1096), 671 states have return successors, (1096), 1026 states have call predecessors, (1096), 1096 states have call successors, (1096) [2023-12-21 11:28:45,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9648 states to 9648 states and 11119 transitions. [2023-12-21 11:28:45,767 INFO L78 Accepts]: Start accepts. Automaton has 9648 states and 11119 transitions. Word has length 417 [2023-12-21 11:28:45,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:28:45,767 INFO L495 AbstractCegarLoop]: Abstraction has 9648 states and 11119 transitions. [2023-12-21 11:28:45,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.7) internal successors, (177), 9 states have internal predecessors, (177), 4 states have call successors, (30), 4 states have call predecessors, (30), 5 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2023-12-21 11:28:45,768 INFO L276 IsEmpty]: Start isEmpty. Operand 9648 states and 11119 transitions. [2023-12-21 11:28:45,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2023-12-21 11:28:45,776 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:28:45,776 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 11, 11, 11, 10, 10, 9, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:28:45,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-12-21 11:28:45,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:28:45,985 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:28:45,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:28:45,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1169310157, now seen corresponding path program 1 times [2023-12-21 11:28:45,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:28:45,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731928377] [2023-12-21 11:28:45,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:28:45,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:28:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:28:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:28:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:28:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:28:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:28:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:28:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:28:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:28:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:28:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:28:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:28:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:28:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:28:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:28:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:28:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:28:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:28:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:28:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-21 11:28:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-21 11:28:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-21 11:28:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-21 11:28:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-12-21 11:28:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-21 11:28:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-21 11:28:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2023-12-21 11:28:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-21 11:28:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-21 11:28:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-21 11:28:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2023-12-21 11:28:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-21 11:28:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-12-21 11:28:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-12-21 11:28:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-12-21 11:28:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2023-12-21 11:28:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2023-12-21 11:28:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2023-12-21 11:28:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 44 proven. 4 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked. [2023-12-21 11:28:46,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:28:46,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731928377] [2023-12-21 11:28:46,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731928377] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:28:46,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291498249] [2023-12-21 11:28:46,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:28:46,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:28:46,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:28:46,176 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:28:46,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-12-21 11:28:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:46,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 11:28:46,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:28:46,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2023-12-21 11:28:46,464 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 11:28:46,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291498249] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:28:46,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 11:28:46,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-12-21 11:28:46,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939016917] [2023-12-21 11:28:46,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:28:46,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 11:28:46,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:28:46,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 11:28:46,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-21 11:28:46,466 INFO L87 Difference]: Start difference. First operand 9648 states and 11119 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-21 11:28:49,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:28:49,812 INFO L93 Difference]: Finished difference Result 19727 states and 22648 transitions. [2023-12-21 11:28:49,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 11:28:49,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 417 [2023-12-21 11:28:49,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:28:49,831 INFO L225 Difference]: With dead ends: 19727 [2023-12-21 11:28:49,831 INFO L226 Difference]: Without dead ends: 12022 [2023-12-21 11:28:49,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-21 11:28:49,840 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 92 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 11:28:49,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 555 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 11:28:49,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12022 states. [2023-12-21 11:28:52,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12022 to 9483. [2023-12-21 11:28:52,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9483 states, 7750 states have (on average 1.1305806451612903) internal successors, (8762), 7815 states have internal predecessors, (8762), 1066 states have call successors, (1066), 666 states have call predecessors, (1066), 666 states have return successors, (1066), 1001 states have call predecessors, (1066), 1066 states have call successors, (1066) [2023-12-21 11:28:52,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9483 states to 9483 states and 10894 transitions. [2023-12-21 11:28:52,315 INFO L78 Accepts]: Start accepts. Automaton has 9483 states and 10894 transitions. Word has length 417 [2023-12-21 11:28:52,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:28:52,315 INFO L495 AbstractCegarLoop]: Abstraction has 9483 states and 10894 transitions. [2023-12-21 11:28:52,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-21 11:28:52,315 INFO L276 IsEmpty]: Start isEmpty. Operand 9483 states and 10894 transitions. [2023-12-21 11:28:52,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2023-12-21 11:28:52,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:28:52,324 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 11, 11, 11, 10, 10, 9, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:28:52,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-12-21 11:28:52,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:28:52,530 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:28:52,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:28:52,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1138277950, now seen corresponding path program 1 times [2023-12-21 11:28:52,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:28:52,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119310822] [2023-12-21 11:28:52,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:28:52,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:28:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:28:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:28:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:28:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:28:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:28:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:28:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:28:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:28:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:28:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:28:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:28:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:28:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:28:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:28:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:28:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:28:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:28:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:28:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-21 11:28:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-21 11:28:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-21 11:28:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-21 11:28:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-12-21 11:28:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-21 11:28:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-21 11:28:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2023-12-21 11:28:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-21 11:28:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-21 11:28:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-21 11:28:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2023-12-21 11:28:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-21 11:28:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-12-21 11:28:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-12-21 11:28:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-12-21 11:28:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2023-12-21 11:28:52,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2023-12-21 11:28:52,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2023-12-21 11:28:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:28:52,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked. [2023-12-21 11:28:52,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:28:52,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119310822] [2023-12-21 11:28:52,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119310822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:28:52,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 11:28:52,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 11:28:52,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90969412] [2023-12-21 11:28:52,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:28:52,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 11:28:52,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:28:52,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 11:28:52,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 11:28:52,761 INFO L87 Difference]: Start difference. First operand 9483 states and 10894 transitions. Second operand has 10 states, 10 states have (on average 14.2) internal successors, (142), 8 states have internal predecessors, (142), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-21 11:28:57,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:28:57,729 INFO L93 Difference]: Finished difference Result 22050 states and 25461 transitions. [2023-12-21 11:28:57,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-21 11:28:57,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.2) internal successors, (142), 8 states have internal predecessors, (142), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 417 [2023-12-21 11:28:57,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:28:57,752 INFO L225 Difference]: With dead ends: 22050 [2023-12-21 11:28:57,752 INFO L226 Difference]: Without dead ends: 14510 [2023-12-21 11:28:57,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2023-12-21 11:28:57,762 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 474 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 11:28:57,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 2106 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1584 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 11:28:57,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14510 states. [2023-12-21 11:29:00,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14510 to 9423. [2023-12-21 11:29:00,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9423 states, 7710 states have (on average 1.1286640726329442) internal successors, (8702), 7775 states have internal predecessors, (8702), 1046 states have call successors, (1046), 666 states have call predecessors, (1046), 666 states have return successors, (1046), 981 states have call predecessors, (1046), 1046 states have call successors, (1046) [2023-12-21 11:29:00,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9423 states to 9423 states and 10794 transitions. [2023-12-21 11:29:00,231 INFO L78 Accepts]: Start accepts. Automaton has 9423 states and 10794 transitions. Word has length 417 [2023-12-21 11:29:00,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:29:00,232 INFO L495 AbstractCegarLoop]: Abstraction has 9423 states and 10794 transitions. [2023-12-21 11:29:00,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.2) internal successors, (142), 8 states have internal predecessors, (142), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-21 11:29:00,232 INFO L276 IsEmpty]: Start isEmpty. Operand 9423 states and 10794 transitions. [2023-12-21 11:29:00,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2023-12-21 11:29:00,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:29:00,240 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 11, 11, 11, 10, 10, 9, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:29:00,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-12-21 11:29:00,240 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:29:00,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:29:00,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1529502800, now seen corresponding path program 1 times [2023-12-21 11:29:00,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:29:00,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249976960] [2023-12-21 11:29:00,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:29:00,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:29:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:29:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:29:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:29:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:29:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:29:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:29:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:29:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:29:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:29:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:29:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:29:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:29:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:29:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:29:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:29:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:29:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:29:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 11:29:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-21 11:29:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-21 11:29:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-21 11:29:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-21 11:29:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-21 11:29:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-21 11:29:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-21 11:29:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-21 11:29:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-12-21 11:29:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2023-12-21 11:29:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-21 11:29:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-21 11:29:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-21 11:29:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2023-12-21 11:29:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2023-12-21 11:29:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2023-12-21 11:29:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-21 11:29:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-21 11:29:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2023-12-21 11:29:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:00,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 47 proven. 32 refuted. 0 times theorem prover too weak. 1180 trivial. 0 not checked. [2023-12-21 11:29:00,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:29:00,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249976960] [2023-12-21 11:29:00,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249976960] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:29:00,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905673189] [2023-12-21 11:29:00,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:29:00,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:29:00,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:29:00,922 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:29:00,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-12-21 11:29:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:29:01,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 59 conjunts are in the unsatisfiable core [2023-12-21 11:29:01,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:29:02,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 399 proven. 337 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2023-12-21 11:29:02,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 11:29:03,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 47 proven. 73 refuted. 0 times theorem prover too weak. 1139 trivial. 0 not checked. [2023-12-21 11:29:03,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905673189] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 11:29:03,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 11:29:03,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22, 18] total 56 [2023-12-21 11:29:03,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352784447] [2023-12-21 11:29:03,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 11:29:03,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2023-12-21 11:29:03,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:29:03,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2023-12-21 11:29:03,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=2799, Unknown=0, NotChecked=0, Total=3080 [2023-12-21 11:29:03,274 INFO L87 Difference]: Start difference. First operand 9423 states and 10794 transitions. Second operand has 56 states, 55 states have (on average 7.4363636363636365) internal successors, (409), 50 states have internal predecessors, (409), 20 states have call successors, (79), 11 states have call predecessors, (79), 13 states have return successors, (79), 20 states have call predecessors, (79), 20 states have call successors, (79) [2023-12-21 11:30:11,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:30:11,307 INFO L93 Difference]: Finished difference Result 66059 states and 76581 transitions. [2023-12-21 11:30:11,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 526 states. [2023-12-21 11:30:11,308 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 7.4363636363636365) internal successors, (409), 50 states have internal predecessors, (409), 20 states have call successors, (79), 11 states have call predecessors, (79), 13 states have return successors, (79), 20 states have call predecessors, (79), 20 states have call successors, (79) Word has length 418 [2023-12-21 11:30:11,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:30:11,424 INFO L225 Difference]: With dead ends: 66059 [2023-12-21 11:30:11,425 INFO L226 Difference]: Without dead ends: 58579 [2023-12-21 11:30:11,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1533 GetRequests, 959 SyntacticMatches, 0 SemanticMatches, 574 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139179 ImplicationChecksByTransitivity, 29.7s TimeCoverageRelationStatistics Valid=23423, Invalid=307777, Unknown=0, NotChecked=0, Total=331200 [2023-12-21 11:30:11,460 INFO L413 NwaCegarLoop]: 1430 mSDtfsCounter, 5558 mSDsluCounter, 31442 mSDsCounter, 0 mSdLazyCounter, 42403 mSolverCounterSat, 1781 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5567 SdHoareTripleChecker+Valid, 32872 SdHoareTripleChecker+Invalid, 44184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1781 IncrementalHoareTripleChecker+Valid, 42403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2023-12-21 11:30:11,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5567 Valid, 32872 Invalid, 44184 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1781 Valid, 42403 Invalid, 0 Unknown, 0 Unchecked, 16.6s Time] [2023-12-21 11:30:11,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58579 states. [2023-12-21 11:30:16,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58579 to 13776. [2023-12-21 11:30:16,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13776 states, 11209 states have (on average 1.1285574092247301) internal successors, (12650), 11315 states have internal predecessors, (12650), 1576 states have call successors, (1576), 990 states have call predecessors, (1576), 990 states have return successors, (1576), 1470 states have call predecessors, (1576), 1576 states have call successors, (1576) [2023-12-21 11:30:16,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13776 states to 13776 states and 15802 transitions. [2023-12-21 11:30:16,395 INFO L78 Accepts]: Start accepts. Automaton has 13776 states and 15802 transitions. Word has length 418 [2023-12-21 11:30:16,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:30:16,395 INFO L495 AbstractCegarLoop]: Abstraction has 13776 states and 15802 transitions. [2023-12-21 11:30:16,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 7.4363636363636365) internal successors, (409), 50 states have internal predecessors, (409), 20 states have call successors, (79), 11 states have call predecessors, (79), 13 states have return successors, (79), 20 states have call predecessors, (79), 20 states have call successors, (79) [2023-12-21 11:30:16,396 INFO L276 IsEmpty]: Start isEmpty. Operand 13776 states and 15802 transitions. [2023-12-21 11:30:16,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2023-12-21 11:30:16,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:30:16,431 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 12, 12, 10, 10, 9, 9, 9, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:30:16,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-12-21 11:30:16,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:30:16,632 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:30:16,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:30:16,633 INFO L85 PathProgramCache]: Analyzing trace with hash 173439285, now seen corresponding path program 1 times [2023-12-21 11:30:16,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:30:16,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486553380] [2023-12-21 11:30:16,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:30:16,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:30:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:30:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:30:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:30:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:30:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:30:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:30:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:30:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:30:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:30:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:30:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:30:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:30:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:30:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:30:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:30:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:30:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:30:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:30:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:30:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-21 11:30:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-21 11:30:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-21 11:30:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-21 11:30:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-21 11:30:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-21 11:30:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-21 11:30:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-21 11:30:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-12-21 11:30:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-21 11:30:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-21 11:30:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2023-12-21 11:30:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-12-21 11:30:16,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2023-12-21 11:30:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-21 11:30:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-12-21 11:30:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-21 11:30:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2023-12-21 11:30:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2023-12-21 11:30:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2023-12-21 11:30:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2023-12-21 11:30:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2023-12-21 11:30:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2023-12-21 11:30:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2023-12-21 11:30:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2023-12-21 11:30:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2023-12-21 11:30:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:16,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 94 proven. 4 refuted. 0 times theorem prover too weak. 1563 trivial. 0 not checked. [2023-12-21 11:30:16,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:30:16,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486553380] [2023-12-21 11:30:16,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486553380] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:30:16,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622892118] [2023-12-21 11:30:16,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:30:16,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:30:16,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:30:16,864 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:30:16,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-12-21 11:30:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:17,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 1762 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 11:30:17,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:30:17,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 700 proven. 0 refuted. 0 times theorem prover too weak. 961 trivial. 0 not checked. [2023-12-21 11:30:17,180 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 11:30:17,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622892118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:30:17,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 11:30:17,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 10 [2023-12-21 11:30:17,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529579543] [2023-12-21 11:30:17,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:30:17,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 11:30:17,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:30:17,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 11:30:17,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-21 11:30:17,182 INFO L87 Difference]: Start difference. First operand 13776 states and 15802 transitions. Second operand has 8 states, 8 states have (on average 25.125) internal successors, (201), 7 states have internal predecessors, (201), 3 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2023-12-21 11:30:22,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:30:22,746 INFO L93 Difference]: Finished difference Result 28472 states and 32705 transitions. [2023-12-21 11:30:22,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 11:30:22,746 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 25.125) internal successors, (201), 7 states have internal predecessors, (201), 3 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 487 [2023-12-21 11:30:22,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:30:22,773 INFO L225 Difference]: With dead ends: 28472 [2023-12-21 11:30:22,773 INFO L226 Difference]: Without dead ends: 16906 [2023-12-21 11:30:22,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 577 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-12-21 11:30:22,786 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 134 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 11:30:22,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1794 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 11:30:22,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16906 states. [2023-12-21 11:30:28,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16906 to 15373. [2023-12-21 11:30:28,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15373 states, 12509 states have (on average 1.1119993604604685) internal successors, (13910), 12629 states have internal predecessors, (13910), 1741 states have call successors, (1741), 1122 states have call predecessors, (1741), 1122 states have return successors, (1741), 1621 states have call predecessors, (1741), 1741 states have call successors, (1741) [2023-12-21 11:30:28,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15373 states to 15373 states and 17392 transitions. [2023-12-21 11:30:28,622 INFO L78 Accepts]: Start accepts. Automaton has 15373 states and 17392 transitions. Word has length 487 [2023-12-21 11:30:28,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:30:28,623 INFO L495 AbstractCegarLoop]: Abstraction has 15373 states and 17392 transitions. [2023-12-21 11:30:28,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.125) internal successors, (201), 7 states have internal predecessors, (201), 3 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2023-12-21 11:30:28,623 INFO L276 IsEmpty]: Start isEmpty. Operand 15373 states and 17392 transitions. [2023-12-21 11:30:28,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2023-12-21 11:30:28,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:30:28,652 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 12, 12, 10, 10, 9, 9, 9, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:30:28,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-12-21 11:30:28,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2023-12-21 11:30:28,860 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:30:28,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:30:28,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1226692677, now seen corresponding path program 1 times [2023-12-21 11:30:28,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:30:28,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78662945] [2023-12-21 11:30:28,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:30:28,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:30:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:30:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:30:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:30:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:30:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:30:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:30:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:30:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:30:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:30:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:30:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:30:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:30:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:30:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:30:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:30:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:30:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:30:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:30:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 11:30:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-21 11:30:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-21 11:30:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-21 11:30:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-21 11:30:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-21 11:30:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-21 11:30:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-21 11:30:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-21 11:30:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-21 11:30:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-21 11:30:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-12-21 11:30:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-21 11:30:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2023-12-21 11:30:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-12-21 11:30:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-12-21 11:30:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-21 11:30:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2023-12-21 11:30:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-21 11:30:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2023-12-21 11:30:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2023-12-21 11:30:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2023-12-21 11:30:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2023-12-21 11:30:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2023-12-21 11:30:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2023-12-21 11:30:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2023-12-21 11:30:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2023-12-21 11:30:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 98 proven. 8 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2023-12-21 11:30:29,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:30:29,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78662945] [2023-12-21 11:30:29,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78662945] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:30:29,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698260355] [2023-12-21 11:30:29,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:30:29,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:30:29,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:30:29,122 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:30:29,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-12-21 11:30:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:29,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 1764 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-21 11:30:29,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:30:29,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 578 proven. 0 refuted. 0 times theorem prover too weak. 1087 trivial. 0 not checked. [2023-12-21 11:30:29,431 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 11:30:29,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698260355] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 11:30:29,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 11:30:29,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 10 [2023-12-21 11:30:29,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776678875] [2023-12-21 11:30:29,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 11:30:29,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 11:30:29,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:30:29,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 11:30:29,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-21 11:30:29,433 INFO L87 Difference]: Start difference. First operand 15373 states and 17392 transitions. Second operand has 9 states, 9 states have (on average 20.0) internal successors, (180), 7 states have internal predecessors, (180), 3 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) [2023-12-21 11:30:35,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:30:35,628 INFO L93 Difference]: Finished difference Result 31284 states and 35607 transitions. [2023-12-21 11:30:35,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 11:30:35,629 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.0) internal successors, (180), 7 states have internal predecessors, (180), 3 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) Word has length 488 [2023-12-21 11:30:35,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:30:35,664 INFO L225 Difference]: With dead ends: 31284 [2023-12-21 11:30:35,664 INFO L226 Difference]: Without dead ends: 18121 [2023-12-21 11:30:35,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 580 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-12-21 11:30:35,679 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 129 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1965 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 11:30:35,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1965 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 11:30:35,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18121 states. [2023-12-21 11:30:40,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18121 to 15202. [2023-12-21 11:30:40,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15202 states, 12361 states have (on average 1.1130976458215354) internal successors, (13759), 12555 states have internal predecessors, (13759), 1695 states have call successors, (1695), 1145 states have call predecessors, (1695), 1145 states have return successors, (1695), 1501 states have call predecessors, (1695), 1695 states have call successors, (1695) [2023-12-21 11:30:40,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15202 states to 15202 states and 17149 transitions. [2023-12-21 11:30:40,858 INFO L78 Accepts]: Start accepts. Automaton has 15202 states and 17149 transitions. Word has length 488 [2023-12-21 11:30:40,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:30:40,858 INFO L495 AbstractCegarLoop]: Abstraction has 15202 states and 17149 transitions. [2023-12-21 11:30:40,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.0) internal successors, (180), 7 states have internal predecessors, (180), 3 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) [2023-12-21 11:30:40,858 INFO L276 IsEmpty]: Start isEmpty. Operand 15202 states and 17149 transitions. [2023-12-21 11:30:40,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2023-12-21 11:30:40,876 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:30:40,876 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 14, 14, 14, 12, 12, 11, 10, 9, 9, 9, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:30:40,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-12-21 11:30:41,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2023-12-21 11:30:41,081 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:30:41,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:30:41,081 INFO L85 PathProgramCache]: Analyzing trace with hash -165829499, now seen corresponding path program 1 times [2023-12-21 11:30:41,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:30:41,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938263059] [2023-12-21 11:30:41,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:30:41,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:30:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:41,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:30:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:41,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:30:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:41,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:30:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:41,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:30:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:41,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:30:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:41,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:30:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:41,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:30:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:41,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:30:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:41,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:30:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:41,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:30:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:41,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:30:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:41,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:30:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:41,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:30:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:41,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:30:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:41,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:30:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:41,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:30:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:30:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:30:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:30:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-21 11:30:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-21 11:30:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-21 11:30:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-21 11:30:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-21 11:30:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-21 11:30:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-21 11:30:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-21 11:30:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-12-21 11:30:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-21 11:30:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-21 11:30:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2023-12-21 11:30:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-12-21 11:30:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2023-12-21 11:30:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-21 11:30:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-12-21 11:30:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2023-12-21 11:30:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-21 11:30:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2023-12-21 11:30:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2023-12-21 11:30:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2023-12-21 11:30:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2023-12-21 11:30:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2023-12-21 11:30:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2023-12-21 11:30:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2023-12-21 11:30:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2023-12-21 11:30:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2023-12-21 11:30:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1726 backedges. 48 proven. 106 refuted. 0 times theorem prover too weak. 1572 trivial. 0 not checked. [2023-12-21 11:30:42,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:30:42,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938263059] [2023-12-21 11:30:42,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938263059] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:30:42,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677954637] [2023-12-21 11:30:42,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:30:42,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:30:42,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:30:42,080 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:30:42,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-12-21 11:30:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:30:42,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 1786 conjuncts, 69 conjunts are in the unsatisfiable core [2023-12-21 11:30:42,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:30:44,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1726 backedges. 304 proven. 868 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2023-12-21 11:30:44,000 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 11:30:45,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1726 backedges. 52 proven. 184 refuted. 0 times theorem prover too weak. 1490 trivial. 0 not checked. [2023-12-21 11:30:45,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677954637] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 11:30:45,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 11:30:45,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 28, 23] total 66 [2023-12-21 11:30:45,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667878770] [2023-12-21 11:30:45,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 11:30:45,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2023-12-21 11:30:45,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:30:45,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2023-12-21 11:30:45,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=582, Invalid=3708, Unknown=0, NotChecked=0, Total=4290 [2023-12-21 11:30:45,238 INFO L87 Difference]: Start difference. First operand 15202 states and 17149 transitions. Second operand has 66 states, 65 states have (on average 7.476923076923077) internal successors, (486), 58 states have internal predecessors, (486), 23 states have call successors, (100), 13 states have call predecessors, (100), 17 states have return successors, (98), 25 states have call predecessors, (98), 23 states have call successors, (98) [2023-12-21 11:31:53,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:31:53,508 INFO L93 Difference]: Finished difference Result 109441 states and 126245 transitions. [2023-12-21 11:31:53,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 758 states. [2023-12-21 11:31:53,509 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 65 states have (on average 7.476923076923077) internal successors, (486), 58 states have internal predecessors, (486), 23 states have call successors, (100), 13 states have call predecessors, (100), 17 states have return successors, (98), 25 states have call predecessors, (98), 23 states have call successors, (98) Word has length 495 [2023-12-21 11:31:53,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:31:53,858 INFO L225 Difference]: With dead ends: 109441 [2023-12-21 11:31:53,859 INFO L226 Difference]: Without dead ends: 96357 [2023-12-21 11:31:53,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1937 GetRequests, 1121 SyntacticMatches, 0 SemanticMatches, 816 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294809 ImplicationChecksByTransitivity, 21.0s TimeCoverageRelationStatistics Valid=33659, Invalid=634647, Unknown=0, NotChecked=0, Total=668306 [2023-12-21 11:31:53,936 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 8398 mSDsluCounter, 17007 mSDsCounter, 0 mSdLazyCounter, 29604 mSolverCounterSat, 2821 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8407 SdHoareTripleChecker+Valid, 17688 SdHoareTripleChecker+Invalid, 32425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2821 IncrementalHoareTripleChecker+Valid, 29604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2023-12-21 11:31:53,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8407 Valid, 17688 Invalid, 32425 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2821 Valid, 29604 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2023-12-21 11:31:53,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96357 states. [2023-12-21 11:31:59,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96357 to 14402. [2023-12-21 11:31:59,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14402 states, 11718 states have (on average 1.1124765318313705) internal successors, (13036), 11907 states have internal predecessors, (13036), 1594 states have call successors, (1594), 1089 states have call predecessors, (1594), 1089 states have return successors, (1594), 1405 states have call predecessors, (1594), 1594 states have call successors, (1594) [2023-12-21 11:31:59,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14402 states to 14402 states and 16224 transitions. [2023-12-21 11:31:59,948 INFO L78 Accepts]: Start accepts. Automaton has 14402 states and 16224 transitions. Word has length 495 [2023-12-21 11:31:59,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:31:59,948 INFO L495 AbstractCegarLoop]: Abstraction has 14402 states and 16224 transitions. [2023-12-21 11:31:59,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 7.476923076923077) internal successors, (486), 58 states have internal predecessors, (486), 23 states have call successors, (100), 13 states have call predecessors, (100), 17 states have return successors, (98), 25 states have call predecessors, (98), 23 states have call successors, (98) [2023-12-21 11:31:59,949 INFO L276 IsEmpty]: Start isEmpty. Operand 14402 states and 16224 transitions. [2023-12-21 11:31:59,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2023-12-21 11:31:59,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 11:31:59,970 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 13, 12, 12, 10, 9, 9, 9, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 11:31:59,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-12-21 11:32:00,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:32:00,178 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 11:32:00,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 11:32:00,179 INFO L85 PathProgramCache]: Analyzing trace with hash -39419416, now seen corresponding path program 1 times [2023-12-21 11:32:00,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 11:32:00,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883177156] [2023-12-21 11:32:00,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:32:00,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 11:32:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 11:32:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 11:32:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 11:32:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 11:32:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 11:32:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 11:32:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 11:32:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 11:32:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 11:32:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 11:32:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:32:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 11:32:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 11:32:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 11:32:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 11:32:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 11:32:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 11:32:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-21 11:32:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 11:32:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-21 11:32:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-21 11:32:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-21 11:32:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-21 11:32:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-21 11:32:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-21 11:32:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-21 11:32:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-21 11:32:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-12-21 11:32:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-21 11:32:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-21 11:32:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2023-12-21 11:32:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-12-21 11:32:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-12-21 11:32:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-12-21 11:32:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2023-12-21 11:32:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2023-12-21 11:32:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-12-21 11:32:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2023-12-21 11:32:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2023-12-21 11:32:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2023-12-21 11:32:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2023-12-21 11:32:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2023-12-21 11:32:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2023-12-21 11:32:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2023-12-21 11:32:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2023-12-21 11:32:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2023-12-21 11:32:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:00,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1732 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 1581 trivial. 0 not checked. [2023-12-21 11:32:00,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 11:32:00,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883177156] [2023-12-21 11:32:00,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883177156] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 11:32:00,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835448624] [2023-12-21 11:32:00,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 11:32:00,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 11:32:00,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 11:32:00,966 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 11:32:00,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-12-21 11:32:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 11:32:01,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 1819 conjuncts, 55 conjunts are in the unsatisfiable core [2023-12-21 11:32:01,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 11:32:02,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1732 backedges. 493 proven. 682 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2023-12-21 11:32:02,606 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 11:32:03,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1732 backedges. 59 proven. 160 refuted. 0 times theorem prover too weak. 1513 trivial. 0 not checked. [2023-12-21 11:32:03,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835448624] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 11:32:03,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 11:32:03,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 17] total 57 [2023-12-21 11:32:03,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278755850] [2023-12-21 11:32:03,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 11:32:03,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2023-12-21 11:32:03,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 11:32:03,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2023-12-21 11:32:03,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=464, Invalid=2728, Unknown=0, NotChecked=0, Total=3192 [2023-12-21 11:32:03,779 INFO L87 Difference]: Start difference. First operand 14402 states and 16224 transitions. Second operand has 57 states, 56 states have (on average 9.357142857142858) internal successors, (524), 51 states have internal predecessors, (524), 24 states have call successors, (106), 13 states have call predecessors, (106), 15 states have return successors, (106), 24 states have call predecessors, (106), 24 states have call successors, (106) [2023-12-21 11:33:10,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 11:33:10,914 INFO L93 Difference]: Finished difference Result 87489 states and 100575 transitions. [2023-12-21 11:33:10,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 867 states. [2023-12-21 11:33:10,914 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 9.357142857142858) internal successors, (524), 51 states have internal predecessors, (524), 24 states have call successors, (106), 13 states have call predecessors, (106), 15 states have return successors, (106), 24 states have call predecessors, (106), 24 states have call successors, (106) Word has length 503 [2023-12-21 11:33:10,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 11:33:10,928 INFO L225 Difference]: With dead ends: 87489 [2023-12-21 11:33:10,928 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 11:33:11,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2122 GetRequests, 1204 SyntacticMatches, 0 SemanticMatches, 918 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380195 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=42938, Invalid=802542, Unknown=0, NotChecked=0, Total=845480 [2023-12-21 11:33:11,029 INFO L413 NwaCegarLoop]: 1033 mSDtfsCounter, 7069 mSDsluCounter, 21856 mSDsCounter, 0 mSdLazyCounter, 26804 mSolverCounterSat, 1846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7069 SdHoareTripleChecker+Valid, 22889 SdHoareTripleChecker+Invalid, 28650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1846 IncrementalHoareTripleChecker+Valid, 26804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-12-21 11:33:11,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7069 Valid, 22889 Invalid, 28650 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1846 Valid, 26804 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2023-12-21 11:33:11,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 11:33:11,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 11:33:11,030 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) [2023-12-21 11:33:11,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 11:33:11,037 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 503 [2023-12-21 11:33:11,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 11:33:11,037 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 11:33:11,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 9.357142857142858) internal successors, (524), 51 states have internal predecessors, (524), 24 states have call successors, (106), 13 states have call predecessors, (106), 15 states have return successors, (106), 24 states have call predecessors, (106), 24 states have call successors, (106) [2023-12-21 11:33:11,037 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 11:33:11,037 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 11:33:11,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 11:33:11,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-12-21 11:33:11,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70 [2023-12-21 11:33:11,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Received shutdown request... [2023-12-21 11:38:45,940 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 11:38:45,958 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-186-9-39-11-30-14-29-10-28-12-18-8-16-8-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-24-9-18-9-12-8-12-8-12-8-12-3-10-3-9-3-6-3-5-3-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-331-10-39-11-30-14-29-10-28-12-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-24-9-18-9-12-8-12-8-12-8-12-3-10-3-9-3-6-3-5-3-2-3-1 context. [2023-12-21 11:38:45,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 11:38:46,327 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-12-21 11:38:46,328 INFO L158 Benchmark]: Toolchain (without parser) took 838101.45ms. Allocated memory was 288.4MB in the beginning and 3.3GB in the end (delta: 3.0GB). Free memory was 249.3MB in the beginning and 1.1GB in the end (delta: -885.3MB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-21 11:38:46,328 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 181.4MB. Free memory is still 134.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 11:38:46,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.92ms. Allocated memory is still 288.4MB. Free memory was 248.9MB in the beginning and 232.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-21 11:38:46,328 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.46ms. Allocated memory is still 288.4MB. Free memory was 232.1MB in the beginning and 229.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 11:38:46,328 INFO L158 Benchmark]: Boogie Preprocessor took 63.37ms. Allocated memory is still 288.4MB. Free memory was 229.4MB in the beginning and 225.3MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-21 11:38:46,329 INFO L158 Benchmark]: RCFGBuilder took 617.89ms. Allocated memory is still 288.4MB. Free memory was 225.3MB in the beginning and 191.6MB in the end (delta: 33.7MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2023-12-21 11:38:46,329 INFO L158 Benchmark]: TraceAbstraction took 837103.43ms. Allocated memory was 288.4MB in the beginning and 3.3GB in the end (delta: 3.0GB). Free memory was 190.7MB in the beginning and 1.1GB in the end (delta: -943.9MB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-21 11:38:46,329 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 181.4MB. Free memory is still 134.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 262.92ms. Allocated memory is still 288.4MB. Free memory was 248.9MB in the beginning and 232.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.46ms. Allocated memory is still 288.4MB. Free memory was 232.1MB in the beginning and 229.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 63.37ms. Allocated memory is still 288.4MB. Free memory was 229.4MB in the beginning and 225.3MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 617.89ms. Allocated memory is still 288.4MB. Free memory was 225.3MB in the beginning and 191.6MB in the end (delta: 33.7MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * TraceAbstraction took 837103.43ms. Allocated memory was 288.4MB in the beginning and 3.3GB in the end (delta: 3.0GB). Free memory was 190.7MB in the beginning and 1.1GB in the end (delta: -943.9MB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while PolyPacSimplificationTermWalker was simplifying a ∨-186-9-39-11-30-14-29-10-28-12-18-8-16-8-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-24-9-18-9-12-8-12-8-12-8-12-3-10-3-9-3-6-3-5-3-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-267-10-39-11-30-14-29-10-28-12-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-25-9-24-9-18-9-12-8-12-8-12-8-12-3-10-3-9-3-6-3-5-3-2-3-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown