/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/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-87.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 02:28:55,635 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 02:28:55,713 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 02:28:55,720 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 02:28:55,721 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 02:28:55,752 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 02:28:55,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 02:28:55,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 02:28:55,753 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 02:28:55,756 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 02:28:55,756 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 02:28:55,757 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 02:28:55,757 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 02:28:55,758 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 02:28:55,758 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 02:28:55,758 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 02:28:55,759 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 02:28:55,759 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 02:28:55,759 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 02:28:55,760 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 02:28:55,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 02:28:55,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 02:28:55,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 02:28:55,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 02:28:55,761 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 02:28:55,761 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 02:28:55,761 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 02:28:55,761 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 02:28:55,762 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 02:28:55,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 02:28:55,763 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 02:28:55,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 02:28:55,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:28:55,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 02:28:55,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 02:28:55,764 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 02:28:55,764 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 02:28:55,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 02:28:55,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 02:28:55,764 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 02:28:55,764 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 02:28:55,764 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 02:28:55,765 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 02:28:55,765 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 02:28:55,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 02:28:56,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 02:28:56,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 02:28:56,018 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 02:28:56,019 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 02:28:56,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-87.i [2023-12-21 02:28:57,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 02:28:57,211 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 02:28:57,211 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-87.i [2023-12-21 02:28:57,218 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10f3873e6/0f58ceb749ab4f3880b4472c748fc5a8/FLAG48b3fd34c [2023-12-21 02:28:57,231 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10f3873e6/0f58ceb749ab4f3880b4472c748fc5a8 [2023-12-21 02:28:57,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 02:28:57,234 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 02:28:57,234 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 02:28:57,235 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 02:28:57,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 02:28:57,243 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:28:57" (1/1) ... [2023-12-21 02:28:57,244 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6876dde2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:28:57, skipping insertion in model container [2023-12-21 02:28:57,244 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:28:57" (1/1) ... [2023-12-21 02:28:57,264 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 02:28:57,379 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-87.i[916,929] [2023-12-21 02:28:57,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:28:57,427 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 02:28:57,438 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-87.i[916,929] [2023-12-21 02:28:57,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:28:57,489 INFO L206 MainTranslator]: Completed translation [2023-12-21 02:28:57,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:28:57 WrapperNode [2023-12-21 02:28:57,490 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 02:28:57,491 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 02:28:57,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 02:28:57,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 02:28:57,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:28:57" (1/1) ... [2023-12-21 02:28:57,503 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:28:57" (1/1) ... [2023-12-21 02:28:57,544 INFO L138 Inliner]: procedures = 26, calls = 145, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 407 [2023-12-21 02:28:57,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 02:28:57,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 02:28:57,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 02:28:57,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 02:28:57,553 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:28:57" (1/1) ... [2023-12-21 02:28:57,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:28:57" (1/1) ... [2023-12-21 02:28:57,567 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:28:57" (1/1) ... [2023-12-21 02:28:57,580 INFO L175 MemorySlicer]: Split 119 memory accesses to 2 slices as follows [2, 117]. 98 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 13]. The 17 writes are split as follows [0, 17]. [2023-12-21 02:28:57,580 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:28:57" (1/1) ... [2023-12-21 02:28:57,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:28:57" (1/1) ... [2023-12-21 02:28:57,599 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:28:57" (1/1) ... [2023-12-21 02:28:57,602 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:28:57" (1/1) ... [2023-12-21 02:28:57,604 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:28:57" (1/1) ... [2023-12-21 02:28:57,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:28:57" (1/1) ... [2023-12-21 02:28:57,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 02:28:57,608 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 02:28:57,608 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 02:28:57,608 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 02:28:57,608 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:28:57" (1/1) ... [2023-12-21 02:28:57,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:28:57,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:28:57,649 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 02:28:57,680 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 02:28:57,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 02:28:57,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 02:28:57,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 02:28:57,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 02:28:57,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 02:28:57,686 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 02:28:57,687 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 02:28:57,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 02:28:57,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 02:28:57,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 02:28:57,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 02:28:57,829 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 02:28:57,831 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 02:28:58,136 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 02:28:58,155 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 02:28:58,155 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 02:28:58,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:28:58 BoogieIcfgContainer [2023-12-21 02:28:58,156 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 02:28:58,158 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 02:28:58,158 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 02:28:58,160 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 02:28:58,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:28:57" (1/3) ... [2023-12-21 02:28:58,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a889f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:28:58, skipping insertion in model container [2023-12-21 02:28:58,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:28:57" (2/3) ... [2023-12-21 02:28:58,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a889f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:28:58, skipping insertion in model container [2023-12-21 02:28:58,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:28:58" (3/3) ... [2023-12-21 02:28:58,162 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-87.i [2023-12-21 02:28:58,174 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 02:28:58,175 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 02:28:58,218 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 02:28:58,224 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;@76b3922a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 02:28:58,224 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 02:28:58,235 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 64 states have internal predecessors, (89), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 02:28:58,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 02:28:58,245 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:28:58,246 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:28:58,247 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:28:58,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:28:58,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1262780580, now seen corresponding path program 1 times [2023-12-21 02:28:58,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:28:58,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158074097] [2023-12-21 02:28:58,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:28:58,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:28:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:28:58,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:28:58,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158074097] [2023-12-21 02:28:58,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-21 02:28:58,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486520480] [2023-12-21 02:28:58,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:28:58,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:28:58,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:28:58,454 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 02:28:58,461 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 02:28:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:28:58,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 02:28:58,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:28:58,655 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2023-12-21 02:28:58,656 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:28:58,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486520480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:28:58,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:28:58,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 02:28:58,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652529030] [2023-12-21 02:28:58,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:28:58,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 02:28:58,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:28:58,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 02:28:58,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 02:28:58,683 INFO L87 Difference]: Start difference. First operand has 80 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 64 states have internal predecessors, (89), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 02:28:58,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:28:58,738 INFO L93 Difference]: Finished difference Result 157 states and 246 transitions. [2023-12-21 02:28:58,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 02:28:58,740 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 106 [2023-12-21 02:28:58,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:28:58,745 INFO L225 Difference]: With dead ends: 157 [2023-12-21 02:28:58,745 INFO L226 Difference]: Without dead ends: 78 [2023-12-21 02:28:58,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 02:28:58,749 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:28:58,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:28:58,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-21 02:28:58,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-12-21 02:28:58,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 62 states have (on average 1.3225806451612903) internal successors, (82), 62 states have internal predecessors, (82), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 02:28:58,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions. [2023-12-21 02:28:58,794 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 106 [2023-12-21 02:28:58,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:28:58,794 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions. [2023-12-21 02:28:58,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 02:28:58,795 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions. [2023-12-21 02:28:58,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 02:28:58,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:28:58,804 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:28:58,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-21 02:28:59,010 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,SelfDestructingSolverStorable0 [2023-12-21 02:28:59,011 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:28:59,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:28:59,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1280643464, now seen corresponding path program 1 times [2023-12-21 02:28:59,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:28:59,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441607346] [2023-12-21 02:28:59,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:28:59,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:28:59,101 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:28:59,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [406212983] [2023-12-21 02:28:59,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:28:59,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:28:59,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:28:59,111 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 02:28:59,111 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 02:28:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:28:59,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 02:28:59,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:28:59,267 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:28:59,268 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:28:59,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:28:59,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441607346] [2023-12-21 02:28:59,268 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:28:59,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406212983] [2023-12-21 02:28:59,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406212983] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:28:59,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:28:59,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:28:59,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673884278] [2023-12-21 02:28:59,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:28:59,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:28:59,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:28:59,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:28:59,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:28:59,270 INFO L87 Difference]: Start difference. First operand 78 states and 110 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:28:59,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:28:59,325 INFO L93 Difference]: Finished difference Result 167 states and 236 transitions. [2023-12-21 02:28:59,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:28:59,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-12-21 02:28:59,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:28:59,326 INFO L225 Difference]: With dead ends: 167 [2023-12-21 02:28:59,326 INFO L226 Difference]: Without dead ends: 90 [2023-12-21 02:28:59,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 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 02:28:59,328 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 21 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:28:59,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 309 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:28:59,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-21 02:28:59,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 80. [2023-12-21 02:28:59,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 64 states have (on average 1.3125) internal successors, (84), 64 states have internal predecessors, (84), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 02:28:59,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 112 transitions. [2023-12-21 02:28:59,335 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 112 transitions. Word has length 106 [2023-12-21 02:28:59,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:28:59,336 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 112 transitions. [2023-12-21 02:28:59,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:28:59,336 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 112 transitions. [2023-12-21 02:28:59,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 02:28:59,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:28:59,337 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:28:59,366 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 02:28:59,541 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,SelfDestructingSolverStorable1 [2023-12-21 02:28:59,541 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:28:59,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:28:59,542 INFO L85 PathProgramCache]: Analyzing trace with hash 471296838, now seen corresponding path program 1 times [2023-12-21 02:28:59,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:28:59,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637617064] [2023-12-21 02:28:59,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:28:59,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:28:59,590 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:28:59,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [138340020] [2023-12-21 02:28:59,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:28:59,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:28:59,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:28:59,591 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 02:28:59,615 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 02:28:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:28:59,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 02:28:59,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:28:59,712 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:28:59,713 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:28:59,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:28:59,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637617064] [2023-12-21 02:28:59,713 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:28:59,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138340020] [2023-12-21 02:28:59,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138340020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:28:59,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:28:59,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:28:59,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280157516] [2023-12-21 02:28:59,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:28:59,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:28:59,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:28:59,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:28:59,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:28:59,715 INFO L87 Difference]: Start difference. First operand 80 states and 112 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:28:59,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:28:59,745 INFO L93 Difference]: Finished difference Result 167 states and 234 transitions. [2023-12-21 02:28:59,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:28:59,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-12-21 02:28:59,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:28:59,746 INFO L225 Difference]: With dead ends: 167 [2023-12-21 02:28:59,746 INFO L226 Difference]: Without dead ends: 88 [2023-12-21 02:28:59,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 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 02:28:59,747 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 12 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:28:59,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 307 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:28:59,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-12-21 02:28:59,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2023-12-21 02:28:59,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 66 states have (on average 1.303030303030303) internal successors, (86), 66 states have internal predecessors, (86), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 02:28:59,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 114 transitions. [2023-12-21 02:28:59,754 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 114 transitions. Word has length 106 [2023-12-21 02:28:59,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:28:59,754 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 114 transitions. [2023-12-21 02:28:59,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:28:59,754 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 114 transitions. [2023-12-21 02:28:59,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 02:28:59,755 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:28:59,755 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:28:59,779 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 02:28:59,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:28:59,961 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:28:59,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:28:59,962 INFO L85 PathProgramCache]: Analyzing trace with hash 528555140, now seen corresponding path program 1 times [2023-12-21 02:28:59,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:28:59,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868682694] [2023-12-21 02:28:59,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:28:59,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:29:00,014 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:29:00,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [329957368] [2023-12-21 02:29:00,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:00,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:00,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:29:00,016 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 02:29:00,046 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 02:29:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:29:00,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 02:29:00,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:29:00,175 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:29:00,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:29:00,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:29:00,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868682694] [2023-12-21 02:29:00,176 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:29:00,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329957368] [2023-12-21 02:29:00,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329957368] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:29:00,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:29:00,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:29:00,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550708510] [2023-12-21 02:29:00,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:29:00,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:29:00,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:29:00,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:29:00,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:29:00,178 INFO L87 Difference]: Start difference. First operand 82 states and 114 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:00,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:29:00,214 INFO L93 Difference]: Finished difference Result 167 states and 232 transitions. [2023-12-21 02:29:00,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:29:00,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-12-21 02:29:00,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:29:00,216 INFO L225 Difference]: With dead ends: 167 [2023-12-21 02:29:00,216 INFO L226 Difference]: Without dead ends: 86 [2023-12-21 02:29:00,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 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 02:29:00,218 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 3 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:29:00,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 307 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:29:00,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-21 02:29:00,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2023-12-21 02:29:00,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 68 states have internal predecessors, (88), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 02:29:00,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 116 transitions. [2023-12-21 02:29:00,229 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 116 transitions. Word has length 106 [2023-12-21 02:29:00,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:29:00,229 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 116 transitions. [2023-12-21 02:29:00,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:00,229 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 116 transitions. [2023-12-21 02:29:00,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 02:29:00,230 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:29:00,230 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:29:00,239 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 02:29:00,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:00,439 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:29:00,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:29:00,440 INFO L85 PathProgramCache]: Analyzing trace with hash 528614722, now seen corresponding path program 1 times [2023-12-21 02:29:00,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:29:00,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253951484] [2023-12-21 02:29:00,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:00,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:29:00,488 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:29:00,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2056837733] [2023-12-21 02:29:00,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:00,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:00,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:29:00,497 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 02:29:00,498 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 02:29:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:29:00,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 02:29:00,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:29:00,662 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:29:00,662 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:29:00,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:29:00,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253951484] [2023-12-21 02:29:00,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:29:00,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056837733] [2023-12-21 02:29:00,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056837733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:29:00,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:29:00,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:29:00,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192630221] [2023-12-21 02:29:00,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:29:00,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:29:00,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:29:00,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:29:00,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:29:00,672 INFO L87 Difference]: Start difference. First operand 84 states and 116 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:00,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:29:00,707 INFO L93 Difference]: Finished difference Result 196 states and 271 transitions. [2023-12-21 02:29:00,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:29:00,707 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-12-21 02:29:00,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:29:00,709 INFO L225 Difference]: With dead ends: 196 [2023-12-21 02:29:00,709 INFO L226 Difference]: Without dead ends: 113 [2023-12-21 02:29:00,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 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 02:29:00,715 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 55 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:29:00,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 330 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:29:00,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-21 02:29:00,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 86. [2023-12-21 02:29:00,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 70 states have internal predecessors, (90), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 02:29:00,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 118 transitions. [2023-12-21 02:29:00,730 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 118 transitions. Word has length 106 [2023-12-21 02:29:00,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:29:00,731 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 118 transitions. [2023-12-21 02:29:00,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:00,731 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 118 transitions. [2023-12-21 02:29:00,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 02:29:00,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:29:00,732 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:29:00,744 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 02:29:00,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:00,939 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:29:00,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:29:00,940 INFO L85 PathProgramCache]: Analyzing trace with hash 259768393, now seen corresponding path program 1 times [2023-12-21 02:29:00,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:29:00,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072412422] [2023-12-21 02:29:00,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:00,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:29:00,981 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:29:00,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [629052411] [2023-12-21 02:29:00,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:00,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:00,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:29:00,997 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 02:29:01,023 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 02:29:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:29:01,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-21 02:29:01,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:29:01,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-21 02:29:01,219 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 85 proven. 3 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-21 02:29:01,220 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:29:01,335 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 02:29:01,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:29:01,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072412422] [2023-12-21 02:29:01,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:29:01,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629052411] [2023-12-21 02:29:01,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629052411] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 02:29:01,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:29:01,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2023-12-21 02:29:01,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475037896] [2023-12-21 02:29:01,336 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 02:29:01,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:29:01,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:29:01,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:29:01,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:29:01,338 INFO L87 Difference]: Start difference. First operand 86 states and 118 transitions. Second operand has 10 states, 8 states have (on average 6.375) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-21 02:29:01,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:29:01,727 INFO L93 Difference]: Finished difference Result 204 states and 279 transitions. [2023-12-21 02:29:01,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 02:29:01,727 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.375) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) Word has length 108 [2023-12-21 02:29:01,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:29:01,728 INFO L225 Difference]: With dead ends: 204 [2023-12-21 02:29:01,728 INFO L226 Difference]: Without dead ends: 119 [2023-12-21 02:29:01,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 204 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:29:01,729 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 138 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:29:01,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 202 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:29:01,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-12-21 02:29:01,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 114. [2023-12-21 02:29:01,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 85 states have (on average 1.223529411764706) internal successors, (104), 86 states have internal predecessors, (104), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-21 02:29:01,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 156 transitions. [2023-12-21 02:29:01,751 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 156 transitions. Word has length 108 [2023-12-21 02:29:01,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:29:01,751 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 156 transitions. [2023-12-21 02:29:01,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.375) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-21 02:29:01,751 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 156 transitions. [2023-12-21 02:29:01,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 02:29:01,752 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:29:01,752 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:29:01,760 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 02:29:01,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:01,958 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:29:01,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:29:01,959 INFO L85 PathProgramCache]: Analyzing trace with hash -275794160, now seen corresponding path program 1 times [2023-12-21 02:29:01,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:29:01,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946631775] [2023-12-21 02:29:01,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:01,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:29:01,977 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:29:01,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1781252923] [2023-12-21 02:29:01,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:01,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:01,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:29:01,992 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 02:29:01,994 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 02:29:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:29:02,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-21 02:29:02,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:29:02,163 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:02,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2023-12-21 02:29:02,178 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:02,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 49 [2023-12-21 02:29:02,204 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:02,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 56 treesize of output 70 [2023-12-21 02:29:02,261 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:02,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 76 treesize of output 20 [2023-12-21 02:29:02,286 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 02:29:02,287 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:29:02,406 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:29:02,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:29:02,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946631775] [2023-12-21 02:29:02,406 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:29:02,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781252923] [2023-12-21 02:29:02,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781252923] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:29:02,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:29:02,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 17 [2023-12-21 02:29:02,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39211013] [2023-12-21 02:29:02,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:29:02,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:29:02,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:29:02,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:29:02,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-12-21 02:29:02,408 INFO L87 Difference]: Start difference. First operand 114 states and 156 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:02,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:29:02,767 INFO L93 Difference]: Finished difference Result 230 states and 312 transitions. [2023-12-21 02:29:02,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:29:02,767 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 110 [2023-12-21 02:29:02,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:29:02,769 INFO L225 Difference]: With dead ends: 230 [2023-12-21 02:29:02,769 INFO L226 Difference]: Without dead ends: 141 [2023-12-21 02:29:02,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2023-12-21 02:29:02,770 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 160 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:29:02,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 396 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:29:02,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-12-21 02:29:02,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 112. [2023-12-21 02:29:02,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 83 states have (on average 1.216867469879518) internal successors, (101), 84 states have internal predecessors, (101), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-21 02:29:02,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 153 transitions. [2023-12-21 02:29:02,776 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 153 transitions. Word has length 110 [2023-12-21 02:29:02,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:29:02,776 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 153 transitions. [2023-12-21 02:29:02,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:02,777 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 153 transitions. [2023-12-21 02:29:02,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 02:29:02,777 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:29:02,778 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:29:02,799 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 02:29:02,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:03,000 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:29:03,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:29:03,000 INFO L85 PathProgramCache]: Analyzing trace with hash 458880677, now seen corresponding path program 1 times [2023-12-21 02:29:03,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:29:03,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874491350] [2023-12-21 02:29:03,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:03,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:29:03,020 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:29:03,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [93058668] [2023-12-21 02:29:03,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:03,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:03,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:29:03,022 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 02:29:03,038 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 02:29:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:29:03,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 02:29:03,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:29:03,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2023-12-21 02:29:03,217 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:03,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 40 [2023-12-21 02:29:03,296 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:29:03,296 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:29:03,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:29:03,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874491350] [2023-12-21 02:29:03,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:29:03,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93058668] [2023-12-21 02:29:03,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93058668] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:29:03,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:29:03,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 02:29:03,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148276851] [2023-12-21 02:29:03,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:29:03,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 02:29:03,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:29:03,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 02:29:03,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:29:03,298 INFO L87 Difference]: Start difference. First operand 112 states and 153 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:03,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:29:03,759 INFO L93 Difference]: Finished difference Result 397 states and 531 transitions. [2023-12-21 02:29:03,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 02:29:03,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 110 [2023-12-21 02:29:03,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:29:03,763 INFO L225 Difference]: With dead ends: 397 [2023-12-21 02:29:03,763 INFO L226 Difference]: Without dead ends: 310 [2023-12-21 02:29:03,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2023-12-21 02:29:03,764 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 384 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:29:03,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 600 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:29:03,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-12-21 02:29:03,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 227. [2023-12-21 02:29:03,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 182 states have (on average 1.2417582417582418) internal successors, (226), 185 states have internal predecessors, (226), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-21 02:29:03,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 306 transitions. [2023-12-21 02:29:03,790 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 306 transitions. Word has length 110 [2023-12-21 02:29:03,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:29:03,790 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 306 transitions. [2023-12-21 02:29:03,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:03,791 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 306 transitions. [2023-12-21 02:29:03,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 02:29:03,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:29:03,792 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:29:03,810 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 02:29:03,999 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,SelfDestructingSolverStorable7 [2023-12-21 02:29:03,999 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:29:04,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:29:04,000 INFO L85 PathProgramCache]: Analyzing trace with hash 422662994, now seen corresponding path program 1 times [2023-12-21 02:29:04,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:29:04,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292758392] [2023-12-21 02:29:04,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:04,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:29:04,036 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:29:04,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1722850975] [2023-12-21 02:29:04,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:04,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:04,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:29:04,050 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 02:29:04,072 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 02:29:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:29:04,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-21 02:29:04,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:29:04,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2023-12-21 02:29:04,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2023-12-21 02:29:04,219 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:04,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2023-12-21 02:29:04,235 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:04,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 13 [2023-12-21 02:29:04,242 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:29:04,242 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:29:04,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:29:04,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292758392] [2023-12-21 02:29:04,243 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:29:04,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722850975] [2023-12-21 02:29:04,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722850975] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:29:04,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:29:04,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:29:04,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665626364] [2023-12-21 02:29:04,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:29:04,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:29:04,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:29:04,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:29:04,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:29:04,246 INFO L87 Difference]: Start difference. First operand 227 states and 306 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:04,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:29:04,521 INFO L93 Difference]: Finished difference Result 484 states and 646 transitions. [2023-12-21 02:29:04,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:29:04,521 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2023-12-21 02:29:04,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:29:04,522 INFO L225 Difference]: With dead ends: 484 [2023-12-21 02:29:04,523 INFO L226 Difference]: Without dead ends: 282 [2023-12-21 02:29:04,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:29:04,523 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 256 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:29:04,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 159 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:29:04,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-12-21 02:29:04,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 278. [2023-12-21 02:29:04,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 226 states have (on average 1.2300884955752212) internal successors, (278), 230 states have internal predecessors, (278), 46 states have call successors, (46), 5 states have call predecessors, (46), 5 states have return successors, (46), 42 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-21 02:29:04,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 370 transitions. [2023-12-21 02:29:04,536 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 370 transitions. Word has length 111 [2023-12-21 02:29:04,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:29:04,537 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 370 transitions. [2023-12-21 02:29:04,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:04,537 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 370 transitions. [2023-12-21 02:29:04,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 02:29:04,538 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:29:04,538 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:29:04,581 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 02:29:04,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:04,738 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:29:04,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:29:04,739 INFO L85 PathProgramCache]: Analyzing trace with hash 606165913, now seen corresponding path program 1 times [2023-12-21 02:29:04,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:29:04,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318616159] [2023-12-21 02:29:04,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:04,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:29:04,755 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:29:04,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1357314464] [2023-12-21 02:29:04,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:04,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:04,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:29:04,756 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 02:29:04,792 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 02:29:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:29:04,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-21 02:29:04,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:29:04,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-12-21 02:29:04,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-12-21 02:29:04,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-12-21 02:29:04,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-12-21 02:29:05,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-12-21 02:29:05,028 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:05,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 69 [2023-12-21 02:29:05,084 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:05,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 72 treesize of output 78 [2023-12-21 02:29:05,098 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:05,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 66 treesize of output 18 [2023-12-21 02:29:05,108 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 139 proven. 30 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-12-21 02:29:05,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:29:05,235 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 02:29:05,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:29:05,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318616159] [2023-12-21 02:29:05,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:29:05,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357314464] [2023-12-21 02:29:05,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357314464] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 02:29:05,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:29:05,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2023-12-21 02:29:05,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012672805] [2023-12-21 02:29:05,236 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 02:29:05,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 02:29:05,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:29:05,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 02:29:05,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-21 02:29:05,237 INFO L87 Difference]: Start difference. First operand 278 states and 370 transitions. Second operand has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 13 states have internal predecessors, (72), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 3 states have call predecessors, (25), 5 states have call successors, (25) [2023-12-21 02:29:05,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:29:05,607 INFO L93 Difference]: Finished difference Result 447 states and 574 transitions. [2023-12-21 02:29:05,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 02:29:05,608 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 13 states have internal predecessors, (72), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 3 states have call predecessors, (25), 5 states have call successors, (25) Word has length 113 [2023-12-21 02:29:05,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:29:05,609 INFO L225 Difference]: With dead ends: 447 [2023-12-21 02:29:05,609 INFO L226 Difference]: Without dead ends: 194 [2023-12-21 02:29:05,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2023-12-21 02:29:05,610 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 149 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:29:05,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 181 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:29:05,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-12-21 02:29:05,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 188. [2023-12-21 02:29:05,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 146 states have (on average 1.1643835616438356) internal successors, (170), 148 states have internal predecessors, (170), 32 states have call successors, (32), 9 states have call predecessors, (32), 9 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-21 02:29:05,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 234 transitions. [2023-12-21 02:29:05,621 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 234 transitions. Word has length 113 [2023-12-21 02:29:05,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:29:05,621 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 234 transitions. [2023-12-21 02:29:05,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 13 states have internal predecessors, (72), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 3 states have call predecessors, (25), 5 states have call successors, (25) [2023-12-21 02:29:05,621 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 234 transitions. [2023-12-21 02:29:05,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 02:29:05,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:29:05,622 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:29:05,636 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 02:29:05,829 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,SelfDestructingSolverStorable9 [2023-12-21 02:29:05,829 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:29:05,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:29:05,830 INFO L85 PathProgramCache]: Analyzing trace with hash 2116562007, now seen corresponding path program 1 times [2023-12-21 02:29:05,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:29:05,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356930788] [2023-12-21 02:29:05,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:05,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:29:05,845 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:29:05,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [501801229] [2023-12-21 02:29:05,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:05,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:05,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:29:05,853 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 02:29:05,872 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 02:29:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:29:06,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-21 02:29:06,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:29:06,020 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:06,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2023-12-21 02:29:06,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-12-21 02:29:06,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-12-21 02:29:06,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-12-21 02:29:06,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-12-21 02:29:06,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-12-21 02:29:06,136 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:06,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 69 [2023-12-21 02:29:06,178 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:06,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 72 treesize of output 78 [2023-12-21 02:29:06,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:06,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 76 treesize of output 87 [2023-12-21 02:29:06,239 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:06,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 91 treesize of output 108 [2023-12-21 02:29:06,335 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:06,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 96 treesize of output 24 [2023-12-21 02:29:06,346 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 139 proven. 30 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-12-21 02:29:06,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:29:06,516 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 02:29:06,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:29:06,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356930788] [2023-12-21 02:29:06,517 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:29:06,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501801229] [2023-12-21 02:29:06,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501801229] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 02:29:06,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:29:06,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 15 [2023-12-21 02:29:06,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545891202] [2023-12-21 02:29:06,517 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 02:29:06,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 02:29:06,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:29:06,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 02:29:06,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:29:06,519 INFO L87 Difference]: Start difference. First operand 188 states and 234 transitions. Second operand has 15 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 15 states have internal predecessors, (82), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 3 states have call predecessors, (25), 5 states have call successors, (25) [2023-12-21 02:29:06,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:29:06,963 INFO L93 Difference]: Finished difference Result 333 states and 405 transitions. [2023-12-21 02:29:06,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 02:29:06,964 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 15 states have internal predecessors, (82), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 3 states have call predecessors, (25), 5 states have call successors, (25) Word has length 114 [2023-12-21 02:29:06,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:29:06,964 INFO L225 Difference]: With dead ends: 333 [2023-12-21 02:29:06,965 INFO L226 Difference]: Without dead ends: 174 [2023-12-21 02:29:06,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=428, Unknown=0, NotChecked=0, Total=600 [2023-12-21 02:29:06,965 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 235 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:29:06,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 171 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:29:06,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-12-21 02:29:06,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 166. [2023-12-21 02:29:06,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 124 states have (on average 1.1129032258064515) internal successors, (138), 126 states have internal predecessors, (138), 32 states have call successors, (32), 9 states have call predecessors, (32), 9 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-21 02:29:06,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 202 transitions. [2023-12-21 02:29:06,977 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 202 transitions. Word has length 114 [2023-12-21 02:29:06,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:29:06,977 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 202 transitions. [2023-12-21 02:29:06,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 15 states have internal predecessors, (82), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 3 states have call predecessors, (25), 5 states have call successors, (25) [2023-12-21 02:29:06,977 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 202 transitions. [2023-12-21 02:29:06,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 02:29:06,978 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:29:06,978 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:29:06,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-21 02:29:07,184 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,SelfDestructingSolverStorable10 [2023-12-21 02:29:07,186 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:29:07,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:29:07,186 INFO L85 PathProgramCache]: Analyzing trace with hash -2085892384, now seen corresponding path program 1 times [2023-12-21 02:29:07,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:29:07,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126954314] [2023-12-21 02:29:07,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:07,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:29:07,206 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:29:07,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1659619847] [2023-12-21 02:29:07,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:07,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:07,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:29:07,222 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 02:29:07,250 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 02:29:07,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:29:07,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-21 02:29:07,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:29:07,412 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:07,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 55 [2023-12-21 02:29:07,436 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:07,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 61 treesize of output 64 [2023-12-21 02:29:07,452 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:07,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 65 treesize of output 73 [2023-12-21 02:29:07,499 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:07,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 80 treesize of output 94 [2023-12-21 02:29:07,722 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:07,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 121 treesize of output 37 [2023-12-21 02:29:07,735 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 02:29:07,735 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:29:07,826 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:29:07,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:29:07,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126954314] [2023-12-21 02:29:07,827 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:29:07,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659619847] [2023-12-21 02:29:07,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659619847] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:29:07,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:29:07,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2023-12-21 02:29:07,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337568878] [2023-12-21 02:29:07,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:29:07,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:29:07,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:29:07,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:29:07,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:29:07,828 INFO L87 Difference]: Start difference. First operand 166 states and 202 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:07,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:29:07,984 INFO L93 Difference]: Finished difference Result 176 states and 212 transitions. [2023-12-21 02:29:07,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:29:07,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-21 02:29:07,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:29:07,985 INFO L225 Difference]: With dead ends: 176 [2023-12-21 02:29:07,986 INFO L226 Difference]: Without dead ends: 174 [2023-12-21 02:29:07,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-12-21 02:29:07,986 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 45 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:29:07,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 273 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:29:07,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-12-21 02:29:07,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2023-12-21 02:29:07,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 131 states have (on average 1.1068702290076335) internal successors, (145), 133 states have internal predecessors, (145), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-21 02:29:07,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 209 transitions. [2023-12-21 02:29:07,997 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 209 transitions. Word has length 114 [2023-12-21 02:29:07,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:29:07,997 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 209 transitions. [2023-12-21 02:29:07,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:07,998 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 209 transitions. [2023-12-21 02:29:07,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 02:29:07,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:29:07,998 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:29:08,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-21 02:29:08,205 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,SelfDestructingSolverStorable11 [2023-12-21 02:29:08,205 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:29:08,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:29:08,206 INFO L85 PathProgramCache]: Analyzing trace with hash -2085832802, now seen corresponding path program 1 times [2023-12-21 02:29:08,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:29:08,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208102431] [2023-12-21 02:29:08,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:08,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:29:08,227 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:29:08,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [102117853] [2023-12-21 02:29:08,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:08,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:08,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:29:08,229 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 02:29:08,255 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 02:29:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:29:08,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-21 02:29:08,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:29:08,442 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:08,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 13 [2023-12-21 02:29:08,474 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:08,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 60 [2023-12-21 02:29:08,512 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:08,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 72 treesize of output 69 [2023-12-21 02:29:08,533 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:08,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 76 treesize of output 78 [2023-12-21 02:29:08,573 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:08,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 91 treesize of output 99 [2023-12-21 02:29:08,886 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:08,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 144 treesize of output 48 [2023-12-21 02:29:08,905 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 02:29:08,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:29:08,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:29:08,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208102431] [2023-12-21 02:29:08,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:29:08,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102117853] [2023-12-21 02:29:08,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102117853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:29:08,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:29:08,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 02:29:08,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415825984] [2023-12-21 02:29:08,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:29:08,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 02:29:08,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:29:08,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 02:29:08,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-12-21 02:29:08,907 INFO L87 Difference]: Start difference. First operand 174 states and 209 transitions. Second operand has 13 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 02:29:09,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:29:09,722 INFO L93 Difference]: Finished difference Result 336 states and 392 transitions. [2023-12-21 02:29:09,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-21 02:29:09,724 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2023-12-21 02:29:09,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:29:09,725 INFO L225 Difference]: With dead ends: 336 [2023-12-21 02:29:09,725 INFO L226 Difference]: Without dead ends: 191 [2023-12-21 02:29:09,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=173, Invalid=639, Unknown=0, NotChecked=0, Total=812 [2023-12-21 02:29:09,726 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 155 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 02:29:09,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 209 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 02:29:09,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-12-21 02:29:09,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 182. [2023-12-21 02:29:09,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 137 states have (on average 1.0875912408759123) internal successors, (149), 139 states have internal predecessors, (149), 32 states have call successors, (32), 12 states have call predecessors, (32), 12 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-21 02:29:09,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 213 transitions. [2023-12-21 02:29:09,740 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 213 transitions. Word has length 114 [2023-12-21 02:29:09,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:29:09,740 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 213 transitions. [2023-12-21 02:29:09,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 02:29:09,740 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 213 transitions. [2023-12-21 02:29:09,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 02:29:09,742 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:29:09,742 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:29:09,748 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 02:29:09,948 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,SelfDestructingSolverStorable12 [2023-12-21 02:29:09,948 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:29:09,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:29:09,949 INFO L85 PathProgramCache]: Analyzing trace with hash -2028574500, now seen corresponding path program 1 times [2023-12-21 02:29:09,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:29:09,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244734247] [2023-12-21 02:29:09,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:09,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:29:09,968 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:29:09,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1349263555] [2023-12-21 02:29:09,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:09,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:09,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:29:09,970 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 02:29:09,995 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 02:29:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:29:10,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-21 02:29:10,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:29:10,133 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:10,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 55 [2023-12-21 02:29:10,154 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:10,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 61 treesize of output 64 [2023-12-21 02:29:10,169 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:10,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 65 treesize of output 73 [2023-12-21 02:29:10,191 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:10,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 80 treesize of output 94 [2023-12-21 02:29:10,306 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:10,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 113 treesize of output 29 [2023-12-21 02:29:10,315 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:29:10,315 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:29:10,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:29:10,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244734247] [2023-12-21 02:29:10,316 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:29:10,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349263555] [2023-12-21 02:29:10,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349263555] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:29:10,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:29:10,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:29:10,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691136635] [2023-12-21 02:29:10,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:29:10,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:29:10,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:29:10,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:29:10,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:29:10,318 INFO L87 Difference]: Start difference. First operand 182 states and 213 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:10,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:29:10,570 INFO L93 Difference]: Finished difference Result 334 states and 385 transitions. [2023-12-21 02:29:10,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:29:10,570 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-21 02:29:10,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:29:10,571 INFO L225 Difference]: With dead ends: 334 [2023-12-21 02:29:10,571 INFO L226 Difference]: Without dead ends: 185 [2023-12-21 02:29:10,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:29:10,572 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 148 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:29:10,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 308 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:29:10,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-12-21 02:29:10,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 182. [2023-12-21 02:29:10,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 137 states have (on average 1.072992700729927) internal successors, (147), 139 states have internal predecessors, (147), 32 states have call successors, (32), 12 states have call predecessors, (32), 12 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-21 02:29:10,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 211 transitions. [2023-12-21 02:29:10,583 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 211 transitions. Word has length 114 [2023-12-21 02:29:10,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:29:10,583 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 211 transitions. [2023-12-21 02:29:10,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:10,583 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 211 transitions. [2023-12-21 02:29:10,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 02:29:10,584 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:29:10,584 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:29:10,606 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 02:29:10,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:10,790 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:29:10,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:29:10,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1457046170, now seen corresponding path program 1 times [2023-12-21 02:29:10,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:29:10,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149137012] [2023-12-21 02:29:10,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:10,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:29:10,804 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:29:10,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1592064490] [2023-12-21 02:29:10,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:10,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:10,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:29:10,806 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 02:29:10,830 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 02:29:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:29:10,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 02:29:10,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:29:10,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2023-12-21 02:29:10,983 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 02:29:10,984 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:29:11,028 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:29:11,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:29:11,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149137012] [2023-12-21 02:29:11,028 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:29:11,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592064490] [2023-12-21 02:29:11,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592064490] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:29:11,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:29:11,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 9 [2023-12-21 02:29:11,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774389383] [2023-12-21 02:29:11,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:29:11,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:29:11,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:29:11,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:29:11,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:29:11,030 INFO L87 Difference]: Start difference. First operand 182 states and 211 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:11,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:29:11,161 INFO L93 Difference]: Finished difference Result 342 states and 390 transitions. [2023-12-21 02:29:11,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:29:11,168 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-21 02:29:11,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:29:11,169 INFO L225 Difference]: With dead ends: 342 [2023-12-21 02:29:11,169 INFO L226 Difference]: Without dead ends: 193 [2023-12-21 02:29:11,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:29:11,169 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 69 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:29:11,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 405 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:29:11,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-12-21 02:29:11,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 185. [2023-12-21 02:29:11,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 140 states have (on average 1.0714285714285714) internal successors, (150), 142 states have internal predecessors, (150), 32 states have call successors, (32), 12 states have call predecessors, (32), 12 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-21 02:29:11,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 214 transitions. [2023-12-21 02:29:11,205 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 214 transitions. Word has length 114 [2023-12-21 02:29:11,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:29:11,205 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 214 transitions. [2023-12-21 02:29:11,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:11,205 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 214 transitions. [2023-12-21 02:29:11,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 02:29:11,206 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:29:11,206 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:29:11,228 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 02:29:11,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-21 02:29:11,407 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:29:11,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:29:11,407 INFO L85 PathProgramCache]: Analyzing trace with hash 827232224, now seen corresponding path program 1 times [2023-12-21 02:29:11,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:29:11,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168414075] [2023-12-21 02:29:11,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:11,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:29:11,429 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:29:11,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312570678] [2023-12-21 02:29:11,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:11,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:11,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:29:11,437 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 02:29:11,462 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 02:29:11,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:29:11,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-21 02:29:11,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:29:11,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-12-21 02:29:11,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2023-12-21 02:29:11,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:11,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 49 [2023-12-21 02:29:11,858 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:11,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 19 [2023-12-21 02:29:11,866 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:29:11,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:29:11,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:29:11,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168414075] [2023-12-21 02:29:11,867 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:29:11,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312570678] [2023-12-21 02:29:11,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312570678] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:29:11,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:29:11,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:29:11,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668876621] [2023-12-21 02:29:11,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:29:11,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:29:11,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:29:11,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:29:11,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:29:11,870 INFO L87 Difference]: Start difference. First operand 185 states and 214 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:12,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:29:12,086 INFO L93 Difference]: Finished difference Result 374 states and 425 transitions. [2023-12-21 02:29:12,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:29:12,086 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 115 [2023-12-21 02:29:12,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:29:12,087 INFO L225 Difference]: With dead ends: 374 [2023-12-21 02:29:12,087 INFO L226 Difference]: Without dead ends: 222 [2023-12-21 02:29:12,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:29:12,088 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 86 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:29:12,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 285 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:29:12,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2023-12-21 02:29:12,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 196. [2023-12-21 02:29:12,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 151 states have (on average 1.0596026490066226) internal successors, (160), 153 states have internal predecessors, (160), 32 states have call successors, (32), 12 states have call predecessors, (32), 12 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-21 02:29:12,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 224 transitions. [2023-12-21 02:29:12,099 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 224 transitions. Word has length 115 [2023-12-21 02:29:12,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:29:12,099 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 224 transitions. [2023-12-21 02:29:12,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:12,099 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 224 transitions. [2023-12-21 02:29:12,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 02:29:12,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:29:12,102 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:29:12,112 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 02:29:12,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-21 02:29:12,309 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:29:12,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:29:12,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1094044043, now seen corresponding path program 1 times [2023-12-21 02:29:12,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:29:12,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690201104] [2023-12-21 02:29:12,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:12,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:29:12,327 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:29:12,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1753910467] [2023-12-21 02:29:12,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:12,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:12,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:29:12,328 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 02:29:12,352 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 02:29:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:29:12,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 02:29:12,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:29:12,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-12-21 02:29:12,651 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:12,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 48 [2023-12-21 02:29:12,718 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:12,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 21 [2023-12-21 02:29:12,725 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:29:12,725 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:29:12,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:29:12,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690201104] [2023-12-21 02:29:12,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:29:12,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753910467] [2023-12-21 02:29:12,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753910467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:29:12,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:29:12,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:29:12,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051577431] [2023-12-21 02:29:12,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:29:12,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:29:12,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:29:12,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:29:12,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:29:12,728 INFO L87 Difference]: Start difference. First operand 196 states and 224 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:12,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:29:12,839 INFO L93 Difference]: Finished difference Result 367 states and 413 transitions. [2023-12-21 02:29:12,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:29:12,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2023-12-21 02:29:12,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:29:12,841 INFO L225 Difference]: With dead ends: 367 [2023-12-21 02:29:12,841 INFO L226 Difference]: Without dead ends: 204 [2023-12-21 02:29:12,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 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 02:29:12,842 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 20 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:29:12,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 238 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:29:12,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-12-21 02:29:12,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 196. [2023-12-21 02:29:12,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 151 states have (on average 1.0529801324503312) internal successors, (159), 153 states have internal predecessors, (159), 32 states have call successors, (32), 12 states have call predecessors, (32), 12 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-21 02:29:12,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 223 transitions. [2023-12-21 02:29:12,855 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 223 transitions. Word has length 116 [2023-12-21 02:29:12,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:29:12,856 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 223 transitions. [2023-12-21 02:29:12,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:12,856 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 223 transitions. [2023-12-21 02:29:12,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 02:29:12,856 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:29:12,856 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:29:12,874 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 02:29:13,064 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,SelfDestructingSolverStorable16 [2023-12-21 02:29:13,064 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:29:13,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:29:13,065 INFO L85 PathProgramCache]: Analyzing trace with hash -754857413, now seen corresponding path program 1 times [2023-12-21 02:29:13,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:29:13,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082333012] [2023-12-21 02:29:13,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:13,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:29:13,079 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:29:13,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1575573184] [2023-12-21 02:29:13,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:13,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:13,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:29:13,080 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 02:29:13,111 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 02:29:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:29:13,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-21 02:29:13,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:29:13,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2023-12-21 02:29:13,260 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:13,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 42 [2023-12-21 02:29:13,376 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 02:29:13,376 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:29:13,522 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:29:13,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:29:13,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082333012] [2023-12-21 02:29:13,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:29:13,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575573184] [2023-12-21 02:29:13,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575573184] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:29:13,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:29:13,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 20 [2023-12-21 02:29:13,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244147269] [2023-12-21 02:29:13,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:29:13,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 02:29:13,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:29:13,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 02:29:13,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2023-12-21 02:29:13,524 INFO L87 Difference]: Start difference. First operand 196 states and 223 transitions. Second operand has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:13,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:29:13,881 INFO L93 Difference]: Finished difference Result 383 states and 427 transitions. [2023-12-21 02:29:13,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:29:13,882 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-12-21 02:29:13,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:29:13,883 INFO L225 Difference]: With dead ends: 383 [2023-12-21 02:29:13,883 INFO L226 Difference]: Without dead ends: 220 [2023-12-21 02:29:13,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2023-12-21 02:29:13,884 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 182 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:29:13,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 609 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:29:13,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-12-21 02:29:13,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 212. [2023-12-21 02:29:13,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 163 states have (on average 1.049079754601227) internal successors, (171), 165 states have internal predecessors, (171), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-21 02:29:13,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 239 transitions. [2023-12-21 02:29:13,896 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 239 transitions. Word has length 117 [2023-12-21 02:29:13,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:29:13,896 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 239 transitions. [2023-12-21 02:29:13,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:13,897 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 239 transitions. [2023-12-21 02:29:13,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 02:29:13,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:29:13,897 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:29:13,923 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 02:29:14,104 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,SelfDestructingSolverStorable17 [2023-12-21 02:29:14,104 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:29:14,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:29:14,105 INFO L85 PathProgramCache]: Analyzing trace with hash -496691975, now seen corresponding path program 1 times [2023-12-21 02:29:14,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:29:14,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730400157] [2023-12-21 02:29:14,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:14,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:29:14,118 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:29:14,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [961651611] [2023-12-21 02:29:14,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:14,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:14,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:29:14,119 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 02:29:14,145 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 02:29:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:29:14,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-21 02:29:14,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:29:14,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2023-12-21 02:29:14,528 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:14,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 74 treesize of output 62 [2023-12-21 02:29:14,690 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:14,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 104 treesize of output 32 [2023-12-21 02:29:14,711 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:29:14,711 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:29:14,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:29:14,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730400157] [2023-12-21 02:29:14,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:29:14,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961651611] [2023-12-21 02:29:14,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961651611] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:29:14,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:29:14,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 02:29:14,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147263654] [2023-12-21 02:29:14,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:29:14,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 02:29:14,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:29:14,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 02:29:14,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:29:14,715 INFO L87 Difference]: Start difference. First operand 212 states and 239 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:15,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:29:15,246 INFO L93 Difference]: Finished difference Result 392 states and 436 transitions. [2023-12-21 02:29:15,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 02:29:15,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-12-21 02:29:15,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:29:15,248 INFO L225 Difference]: With dead ends: 392 [2023-12-21 02:29:15,248 INFO L226 Difference]: Without dead ends: 217 [2023-12-21 02:29:15,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:29:15,248 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 136 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:29:15,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 382 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:29:15,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-12-21 02:29:15,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 202. [2023-12-21 02:29:15,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 153 states have (on average 1.0326797385620916) internal successors, (158), 155 states have internal predecessors, (158), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-21 02:29:15,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 226 transitions. [2023-12-21 02:29:15,262 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 226 transitions. Word has length 117 [2023-12-21 02:29:15,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:29:15,262 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 226 transitions. [2023-12-21 02:29:15,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:15,262 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 226 transitions. [2023-12-21 02:29:15,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 02:29:15,263 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:29:15,263 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:29:15,279 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 02:29:15,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:15,473 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:29:15,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:29:15,474 INFO L85 PathProgramCache]: Analyzing trace with hash -888870919, now seen corresponding path program 1 times [2023-12-21 02:29:15,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:29:15,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431482411] [2023-12-21 02:29:15,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:15,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:29:15,487 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:29:15,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [418424631] [2023-12-21 02:29:15,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:15,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:15,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:29:15,489 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 02:29:15,510 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 02:29:15,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:29:15,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-21 02:29:15,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:29:15,797 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:15,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2023-12-21 02:29:15,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-21 02:29:15,803 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:15,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 55 [2023-12-21 02:29:15,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:15,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 61 treesize of output 64 [2023-12-21 02:29:15,844 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:15,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 65 treesize of output 73 [2023-12-21 02:29:15,905 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:15,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 111 treesize of output 89 [2023-12-21 02:29:16,045 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:29:16,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 119 treesize of output 35 [2023-12-21 02:29:16,055 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:29:16,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:29:16,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:29:16,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431482411] [2023-12-21 02:29:16,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:29:16,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418424631] [2023-12-21 02:29:16,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418424631] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:29:16,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:29:16,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:29:16,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180261123] [2023-12-21 02:29:16,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:29:16,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:29:16,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:29:16,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:29:16,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:29:16,057 INFO L87 Difference]: Start difference. First operand 202 states and 226 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:17,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:29:17,250 INFO L93 Difference]: Finished difference Result 407 states and 450 transitions. [2023-12-21 02:29:17,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:29:17,252 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-12-21 02:29:17,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:29:17,253 INFO L225 Difference]: With dead ends: 407 [2023-12-21 02:29:17,253 INFO L226 Difference]: Without dead ends: 242 [2023-12-21 02:29:17,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:29:17,254 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 106 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:29:17,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 319 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 02:29:17,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2023-12-21 02:29:17,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 202. [2023-12-21 02:29:17,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 153 states have (on average 1.026143790849673) internal successors, (157), 155 states have internal predecessors, (157), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-21 02:29:17,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 225 transitions. [2023-12-21 02:29:17,274 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 225 transitions. Word has length 117 [2023-12-21 02:29:17,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:29:17,274 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 225 transitions. [2023-12-21 02:29:17,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:17,274 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 225 transitions. [2023-12-21 02:29:17,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 02:29:17,275 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:29:17,275 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:29:17,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-21 02:29:17,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:17,483 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:29:17,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:29:17,483 INFO L85 PathProgramCache]: Analyzing trace with hash -630705481, now seen corresponding path program 1 times [2023-12-21 02:29:17,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:29:17,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750314390] [2023-12-21 02:29:17,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:17,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:29:17,498 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:29:17,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [954916186] [2023-12-21 02:29:17,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:29:17,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:17,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:29:17,500 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 02:29:17,502 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 02:29:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:29:17,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-21 02:29:17,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:29:17,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2023-12-21 02:29:17,702 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 02:29:17,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:29:17,758 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:29:17,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:29:17,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750314390] [2023-12-21 02:29:17,758 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:29:17,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954916186] [2023-12-21 02:29:17,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954916186] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:29:17,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:29:17,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 11 [2023-12-21 02:29:17,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140430975] [2023-12-21 02:29:17,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:29:17,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:29:17,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:29:17,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:29:17,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:29:17,759 INFO L87 Difference]: Start difference. First operand 202 states and 225 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:17,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:29:17,914 INFO L93 Difference]: Finished difference Result 364 states and 401 transitions. [2023-12-21 02:29:17,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:29:17,914 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-12-21 02:29:17,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:29:17,914 INFO L225 Difference]: With dead ends: 364 [2023-12-21 02:29:17,914 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 02:29:17,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-12-21 02:29:17,916 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 57 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:29:17,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 444 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:29:17,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 02:29:17,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 02:29:17,916 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 02:29:17,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 02:29:17,916 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 117 [2023-12-21 02:29:17,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:29:17,916 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 02:29:17,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:29:17,917 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 02:29:17,917 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 02:29:17,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 02:29:17,934 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 02:29:18,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:29:18,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 02:29:20,191 INFO L895 garLoopResultBuilder]: At program point L93(line 93) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse3 (select .cse0 (+ |~#WrapperStruct00~0.offset| 26)))) (let ((.cse6 (select .cse0 (+ |~#WrapperStruct00~0.offset| 16))) (.cse1 (select .cse0 (+ |~#WrapperStruct00~0.offset| 17))) (.cse7 (select .cse0 (+ |~#WrapperStruct00~0.offset| 15))) (.cse5 (<= (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 8)) 4294967296) 2147483647)) (.cse4 (select .cse0 (+ |~#WrapperStruct00~0.offset| 25))) (.cse2 (mod .cse3 256))) (or (and (= (select .cse0 (+ |~#WrapperStruct00~0.offset| 14)) .cse1) (= .cse2 1) (= .cse3 .cse4) .cse5 (= .cse6 (select .cse0 (+ |~#WrapperStruct00~0.offset| 27))) (= (select .cse0 (+ |~#WrapperStruct00~0.offset| 21)) .cse7)) (and (or (= (+ .cse6 .cse1) .cse7) (not (= .cse7 (select .cse0 (+ |~#WrapperStruct00~0.offset| 12))))) .cse5 (not (= (mod .cse4 256) 0)) (<= .cse2 1)))))) [2023-12-21 02:29:20,195 INFO L899 garLoopResultBuilder]: For program point L93-1(line 93) no Hoare annotation was computed. [2023-12-21 02:29:20,195 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 62) no Hoare annotation was computed. [2023-12-21 02:29:20,195 INFO L899 garLoopResultBuilder]: For program point L60-2(lines 60 62) no Hoare annotation was computed. [2023-12-21 02:29:20,196 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-21 02:29:20,196 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-21 02:29:20,196 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-21 02:29:20,196 INFO L895 garLoopResultBuilder]: At program point L102(line 102) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (and (<= (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 8)) 4294967296) 2147483647) (not (= (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 25)) 256) 0)) (<= (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 26)) 256) 1))) [2023-12-21 02:29:20,196 INFO L899 garLoopResultBuilder]: For program point L102-1(line 102) no Hoare annotation was computed. [2023-12-21 02:29:20,196 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2023-12-21 02:29:20,196 INFO L899 garLoopResultBuilder]: For program point L61-2(line 61) no Hoare annotation was computed. [2023-12-21 02:29:20,196 INFO L895 garLoopResultBuilder]: At program point L86(line 86) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse3 (select .cse0 (+ |~#WrapperStruct00~0.offset| 26)))) (let ((.cse6 (select .cse0 (+ |~#WrapperStruct00~0.offset| 16))) (.cse1 (select .cse0 (+ |~#WrapperStruct00~0.offset| 17))) (.cse7 (select .cse0 (+ |~#WrapperStruct00~0.offset| 15))) (.cse5 (<= (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 8)) 4294967296) 2147483647)) (.cse4 (select .cse0 (+ |~#WrapperStruct00~0.offset| 25))) (.cse2 (mod .cse3 256))) (or (and (= (select .cse0 (+ |~#WrapperStruct00~0.offset| 14)) .cse1) (= .cse2 1) (= .cse3 .cse4) .cse5 (= .cse6 (select .cse0 (+ |~#WrapperStruct00~0.offset| 27))) (= (select .cse0 (+ |~#WrapperStruct00~0.offset| 21)) .cse7)) (and (or (= (+ .cse6 .cse1) .cse7) (not (= .cse7 (select .cse0 (+ |~#WrapperStruct00~0.offset| 12))))) .cse5 (not (= (mod .cse4 256) 0)) (<= .cse2 1)))))) [2023-12-21 02:29:20,196 INFO L899 garLoopResultBuilder]: For program point L86-1(line 86) no Hoare annotation was computed. [2023-12-21 02:29:20,196 INFO L899 garLoopResultBuilder]: For program point L111(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,196 INFO L899 garLoopResultBuilder]: For program point L111-1(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,196 INFO L899 garLoopResultBuilder]: For program point L111-3(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,196 INFO L899 garLoopResultBuilder]: For program point L111-5(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,196 INFO L899 garLoopResultBuilder]: For program point L111-6(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,196 INFO L899 garLoopResultBuilder]: For program point L111-7(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,197 INFO L899 garLoopResultBuilder]: For program point L111-8(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,197 INFO L899 garLoopResultBuilder]: For program point L111-9(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,197 INFO L899 garLoopResultBuilder]: For program point L111-11(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,197 INFO L899 garLoopResultBuilder]: For program point L111-12(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,197 INFO L899 garLoopResultBuilder]: For program point L111-14(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,197 INFO L895 garLoopResultBuilder]: At program point L95(line 95) the Hoare annotation is: (let ((.cse5 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse1 (select .cse5 (+ |~#WrapperStruct00~0.offset| 26)))) (let ((.cse4 (select .cse5 (+ |~#WrapperStruct00~0.offset| 16))) (.cse6 (select .cse5 (+ |~#WrapperStruct00~0.offset| 15))) (.cse3 (<= (mod (select .cse5 (+ |~#WrapperStruct00~0.offset| 8)) 4294967296) 2147483647)) (.cse2 (select .cse5 (+ |~#WrapperStruct00~0.offset| 25))) (.cse0 (mod .cse1 256))) (or (and (= .cse0 1) (= .cse1 .cse2) .cse3 (= .cse4 (select .cse5 (+ |~#WrapperStruct00~0.offset| 27))) (= (select .cse5 (+ |~#WrapperStruct00~0.offset| 21)) .cse6)) (and (or (= (+ .cse4 (select .cse5 (+ |~#WrapperStruct00~0.offset| 17))) .cse6) (not (= .cse6 (select .cse5 (+ |~#WrapperStruct00~0.offset| 12))))) .cse3 (not (= (mod .cse2 256) 0)) (<= .cse0 1)))))) [2023-12-21 02:29:20,197 INFO L899 garLoopResultBuilder]: For program point L111-16(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,197 INFO L899 garLoopResultBuilder]: For program point L95-1(line 95) no Hoare annotation was computed. [2023-12-21 02:29:20,197 INFO L899 garLoopResultBuilder]: For program point L111-18(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,197 INFO L899 garLoopResultBuilder]: For program point L111-20(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,197 INFO L899 garLoopResultBuilder]: For program point L111-21(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,197 INFO L899 garLoopResultBuilder]: For program point L111-22(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,197 INFO L899 garLoopResultBuilder]: For program point L111-23(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,197 INFO L895 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse3 (select .cse0 (+ |~#WrapperStruct00~0.offset| 26)))) (let ((.cse6 (select .cse0 (+ |~#WrapperStruct00~0.offset| 16))) (.cse1 (select .cse0 (+ |~#WrapperStruct00~0.offset| 17))) (.cse7 (select .cse0 (+ |~#WrapperStruct00~0.offset| 15))) (.cse5 (<= (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 8)) 4294967296) 2147483647)) (.cse4 (select .cse0 (+ |~#WrapperStruct00~0.offset| 25))) (.cse2 (mod .cse3 256))) (or (and (= (select .cse0 (+ |~#WrapperStruct00~0.offset| 14)) .cse1) (= .cse2 1) (= .cse3 .cse4) .cse5 (= .cse6 (select .cse0 (+ |~#WrapperStruct00~0.offset| 27))) (= (select .cse0 (+ |~#WrapperStruct00~0.offset| 21)) .cse7)) (and (or (= (+ .cse6 .cse1) .cse7) (not (= .cse7 (select .cse0 (+ |~#WrapperStruct00~0.offset| 12))))) .cse5 (not (= (mod .cse4 256) 0)) (<= .cse2 1)))))) [2023-12-21 02:29:20,197 INFO L899 garLoopResultBuilder]: For program point L87-1(line 87) no Hoare annotation was computed. [2023-12-21 02:29:20,198 INFO L899 garLoopResultBuilder]: For program point L111-25(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,198 INFO L899 garLoopResultBuilder]: For program point L111-27(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,198 INFO L899 garLoopResultBuilder]: For program point L111-29(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,198 INFO L899 garLoopResultBuilder]: For program point L111-30(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,198 INFO L899 garLoopResultBuilder]: For program point L111-32(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,198 INFO L899 garLoopResultBuilder]: For program point L111-33(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,198 INFO L899 garLoopResultBuilder]: For program point L111-35(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,198 INFO L899 garLoopResultBuilder]: For program point L111-36(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,198 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-21 02:29:20,198 INFO L899 garLoopResultBuilder]: For program point L111-38(line 111) no Hoare annotation was computed. [2023-12-21 02:29:20,198 INFO L895 garLoopResultBuilder]: At program point L104(line 104) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (and (= (select .cse0 (+ |~#WrapperStruct00~0.offset| 26)) |ULTIMATE.start_updateVariables_#t~mem57#1|) (<= (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 8)) 4294967296) 2147483647) (not (= (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 25)) 256) 0)))) [2023-12-21 02:29:20,198 INFO L899 garLoopResultBuilder]: For program point L104-1(line 104) no Hoare annotation was computed. [2023-12-21 02:29:20,198 INFO L895 garLoopResultBuilder]: At program point L96(line 96) the Hoare annotation is: (let ((.cse5 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse1 (select .cse5 (+ |~#WrapperStruct00~0.offset| 26)))) (let ((.cse4 (select .cse5 (+ |~#WrapperStruct00~0.offset| 16))) (.cse6 (select .cse5 (+ |~#WrapperStruct00~0.offset| 15))) (.cse3 (<= (mod (select .cse5 (+ |~#WrapperStruct00~0.offset| 8)) 4294967296) 2147483647)) (.cse2 (select .cse5 (+ |~#WrapperStruct00~0.offset| 25))) (.cse0 (mod .cse1 256))) (or (and (= .cse0 1) (= .cse1 .cse2) .cse3 (= .cse4 (select .cse5 (+ |~#WrapperStruct00~0.offset| 27))) (= (select .cse5 (+ |~#WrapperStruct00~0.offset| 21)) .cse6)) (and (or (= (+ .cse4 (select .cse5 (+ |~#WrapperStruct00~0.offset| 17))) .cse6) (not (= .cse6 (select .cse5 (+ |~#WrapperStruct00~0.offset| 12))))) .cse3 (not (= (mod .cse2 256) 0)) (<= .cse0 1)))))) [2023-12-21 02:29:20,198 INFO L899 garLoopResultBuilder]: For program point L96-1(line 96) no Hoare annotation was computed. [2023-12-21 02:29:20,198 INFO L895 garLoopResultBuilder]: At program point L105(line 105) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse0 (select .cse1 (+ |~#WrapperStruct00~0.offset| 26)))) (and (<= 1 (mod .cse0 256)) (<= (mod (select .cse1 (+ |~#WrapperStruct00~0.offset| 8)) 4294967296) 2147483647) (= .cse0 |ULTIMATE.start_updateVariables_#t~mem58#1|) (not (= (mod (select .cse1 (+ |~#WrapperStruct00~0.offset| 25)) 256) 0))))) [2023-12-21 02:29:20,198 INFO L899 garLoopResultBuilder]: For program point L105-1(line 105) no Hoare annotation was computed. [2023-12-21 02:29:20,199 INFO L895 garLoopResultBuilder]: At program point L89(line 89) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse3 (select .cse0 (+ |~#WrapperStruct00~0.offset| 26)))) (let ((.cse5 (select .cse0 (+ |~#WrapperStruct00~0.offset| 16))) (.cse1 (select .cse0 (+ |~#WrapperStruct00~0.offset| 17))) (.cse6 (select .cse0 (+ |~#WrapperStruct00~0.offset| 15))) (.cse4 (select .cse0 (+ |~#WrapperStruct00~0.offset| 25))) (.cse2 (mod .cse3 256))) (or (and (= (select .cse0 (+ |~#WrapperStruct00~0.offset| 14)) .cse1) (= .cse2 1) (= .cse3 .cse4) (= .cse5 (select .cse0 (+ |~#WrapperStruct00~0.offset| 27))) (= (select .cse0 (+ |~#WrapperStruct00~0.offset| 21)) .cse6)) (and (or (= (+ .cse5 .cse1) .cse6) (not (= .cse6 (select .cse0 (+ |~#WrapperStruct00~0.offset| 12))))) (not (= (mod .cse4 256) 0)) (<= .cse2 1)))))) [2023-12-21 02:29:20,199 INFO L899 garLoopResultBuilder]: For program point L89-1(line 89) no Hoare annotation was computed. [2023-12-21 02:29:20,199 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 83) no Hoare annotation was computed. [2023-12-21 02:29:20,199 INFO L895 garLoopResultBuilder]: At program point L98(line 98) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (and (<= (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 8)) 4294967296) 2147483647) (not (= (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 25)) 256) 0)) (<= (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 26)) 256) 1))) [2023-12-21 02:29:20,199 INFO L899 garLoopResultBuilder]: For program point L98-1(line 98) no Hoare annotation was computed. [2023-12-21 02:29:20,199 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 73) no Hoare annotation was computed. [2023-12-21 02:29:20,199 INFO L899 garLoopResultBuilder]: For program point L65-1(lines 65 73) no Hoare annotation was computed. [2023-12-21 02:29:20,199 INFO L895 garLoopResultBuilder]: At program point L90(line 90) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse3 (select .cse0 (+ |~#WrapperStruct00~0.offset| 26)))) (let ((.cse5 (select .cse0 (+ |~#WrapperStruct00~0.offset| 16))) (.cse1 (select .cse0 (+ |~#WrapperStruct00~0.offset| 17))) (.cse7 (select .cse0 (+ |~#WrapperStruct00~0.offset| 15))) (.cse4 (select .cse0 (+ |~#WrapperStruct00~0.offset| 25))) (.cse6 (= |ULTIMATE.start_updateVariables_#t~mem43#1| (select .cse0 (+ |~#WrapperStruct00~0.offset| 8)))) (.cse2 (mod .cse3 256))) (or (and (= (select .cse0 (+ |~#WrapperStruct00~0.offset| 14)) .cse1) (= .cse2 1) (= .cse3 .cse4) (= .cse5 (select .cse0 (+ |~#WrapperStruct00~0.offset| 27))) .cse6 (= (select .cse0 (+ |~#WrapperStruct00~0.offset| 21)) .cse7)) (and (or (= (+ .cse5 .cse1) .cse7) (not (= .cse7 (select .cse0 (+ |~#WrapperStruct00~0.offset| 12))))) (not (= (mod .cse4 256) 0)) .cse6 (<= .cse2 1)))))) [2023-12-21 02:29:20,199 INFO L899 garLoopResultBuilder]: For program point L90-1(line 90) no Hoare annotation was computed. [2023-12-21 02:29:20,199 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-21 02:29:20,199 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 82) no Hoare annotation was computed. [2023-12-21 02:29:20,199 INFO L895 garLoopResultBuilder]: At program point L99(line 99) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (and (<= (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 8)) 4294967296) 2147483647) (not (= (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 25)) 256) 0)) (<= (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 26)) 256) 1))) [2023-12-21 02:29:20,200 INFO L899 garLoopResultBuilder]: For program point L99-1(line 99) no Hoare annotation was computed. [2023-12-21 02:29:20,200 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-12-21 02:29:20,200 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-21 02:29:20,200 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 79) no Hoare annotation was computed. [2023-12-21 02:29:20,200 INFO L899 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2023-12-21 02:29:20,200 INFO L899 garLoopResultBuilder]: For program point L67-2(line 67) no Hoare annotation was computed. [2023-12-21 02:29:20,200 INFO L899 garLoopResultBuilder]: For program point L67-3(line 67) no Hoare annotation was computed. [2023-12-21 02:29:20,200 INFO L899 garLoopResultBuilder]: For program point L67-5(line 67) no Hoare annotation was computed. [2023-12-21 02:29:20,200 INFO L895 garLoopResultBuilder]: At program point L92(line 92) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse3 (select .cse0 (+ |~#WrapperStruct00~0.offset| 26)))) (let ((.cse6 (select .cse0 (+ |~#WrapperStruct00~0.offset| 16))) (.cse1 (select .cse0 (+ |~#WrapperStruct00~0.offset| 17))) (.cse7 (select .cse0 (+ |~#WrapperStruct00~0.offset| 15))) (.cse5 (<= (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 8)) 4294967296) 2147483647)) (.cse4 (select .cse0 (+ |~#WrapperStruct00~0.offset| 25))) (.cse2 (mod .cse3 256))) (or (and (= (select .cse0 (+ |~#WrapperStruct00~0.offset| 14)) .cse1) (= .cse2 1) (= .cse3 .cse4) .cse5 (= .cse6 (select .cse0 (+ |~#WrapperStruct00~0.offset| 27))) (= (select .cse0 (+ |~#WrapperStruct00~0.offset| 21)) .cse7)) (and (or (= (+ .cse6 .cse1) .cse7) (not (= .cse7 (select .cse0 (+ |~#WrapperStruct00~0.offset| 12))))) .cse5 (not (= (mod .cse4 256) 0)) (<= .cse2 1)))))) [2023-12-21 02:29:20,200 INFO L899 garLoopResultBuilder]: For program point L92-1(line 92) no Hoare annotation was computed. [2023-12-21 02:29:20,200 INFO L895 garLoopResultBuilder]: At program point L117-2(lines 117 123) the Hoare annotation is: (let ((.cse3 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse8 (select .cse3 (+ |~#WrapperStruct00~0.offset| 8))) (.cse7 (select .cse3 (+ |~#WrapperStruct00~0.offset| 26)))) (let ((.cse1 (select .cse3 (+ |~#WrapperStruct00~0.offset| 17))) (.cse6 (mod .cse7 256)) (.cse5 (select .cse3 (+ |~#WrapperStruct00~0.offset| 25))) (.cse4 (<= (mod .cse8 4294967296) 2147483647)) (.cse0 (select .cse3 (+ |~#WrapperStruct00~0.offset| 16))) (.cse2 (select .cse3 (+ |~#WrapperStruct00~0.offset| 15)))) (or (and (or (= (+ .cse0 .cse1) .cse2) (not (= .cse2 (select .cse3 (+ |~#WrapperStruct00~0.offset| 12))))) .cse4 (not (= (mod .cse5 256) 0)) (<= .cse6 1)) (and (= (select .cse3 (+ |~#WrapperStruct00~0.offset| 14)) .cse1) (= .cse6 1) (= .cse7 .cse5) .cse4 (= .cse0 (select .cse3 (+ |~#WrapperStruct00~0.offset| 27))) (= (mod (+ (select .cse3 (+ |~#WrapperStruct00~0.offset| 4)) (* 4294967295 .cse8)) 4294967296) (mod (select .cse3 |~#WrapperStruct00~0.offset|) 4294967296)) (= (select .cse3 (+ |~#WrapperStruct00~0.offset| 21)) .cse2)))))) [2023-12-21 02:29:20,200 INFO L899 garLoopResultBuilder]: For program point L117-3(lines 117 123) no Hoare annotation was computed. [2023-12-21 02:29:20,200 INFO L895 garLoopResultBuilder]: At program point L101(line 101) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (and (<= (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 8)) 4294967296) 2147483647) (not (= (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 25)) 256) 0)) (<= (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 26)) 256) 1))) [2023-12-21 02:29:20,201 INFO L899 garLoopResultBuilder]: For program point L101-1(line 101) no Hoare annotation was computed. [2023-12-21 02:29:20,201 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-21 02:29:20,201 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-21 02:29:20,201 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-21 02:29:20,201 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-21 02:29:20,203 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:29:20,204 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 02:29:20,232 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 16] could not be translated [2023-12-21 02:29:20,232 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 17] could not be translated [2023-12-21 02:29:20,232 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 15] could not be translated [2023-12-21 02:29:20,232 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 15] could not be translated [2023-12-21 02:29:20,233 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 12] could not be translated [2023-12-21 02:29:20,233 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 8] could not be translated [2023-12-21 02:29:20,234 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 25] could not be translated [2023-12-21 02:29:20,235 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated [2023-12-21 02:29:20,235 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 14] could not be translated [2023-12-21 02:29:20,235 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 17] could not be translated [2023-12-21 02:29:20,235 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated [2023-12-21 02:29:20,235 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated [2023-12-21 02:29:20,235 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 25] could not be translated [2023-12-21 02:29:20,235 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 8] could not be translated [2023-12-21 02:29:20,235 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 16] could not be translated [2023-12-21 02:29:20,235 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 27] could not be translated [2023-12-21 02:29:20,235 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 4] could not be translated [2023-12-21 02:29:20,235 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 8] could not be translated [2023-12-21 02:29:20,236 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated [2023-12-21 02:29:20,236 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 21] could not be translated [2023-12-21 02:29:20,236 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 15] could not be translated [2023-12-21 02:29:20,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 02:29:20 BoogieIcfgContainer [2023-12-21 02:29:20,237 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 02:29:20,237 INFO L158 Benchmark]: Toolchain (without parser) took 23003.43ms. Allocated memory was 217.1MB in the beginning and 490.7MB in the end (delta: 273.7MB). Free memory was 156.7MB in the beginning and 393.7MB in the end (delta: -237.0MB). Peak memory consumption was 269.6MB. Max. memory is 8.0GB. [2023-12-21 02:29:20,237 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 217.1MB. Free memory is still 165.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 02:29:20,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.59ms. Allocated memory is still 217.1MB. Free memory was 156.4MB in the beginning and 141.0MB in the end (delta: 15.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-21 02:29:20,238 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.70ms. Allocated memory is still 217.1MB. Free memory was 141.0MB in the beginning and 137.5MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-21 02:29:20,238 INFO L158 Benchmark]: Boogie Preprocessor took 62.28ms. Allocated memory is still 217.1MB. Free memory was 137.5MB in the beginning and 133.6MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-21 02:29:20,240 INFO L158 Benchmark]: RCFGBuilder took 548.31ms. Allocated memory was 217.1MB in the beginning and 261.1MB in the end (delta: 44.0MB). Free memory was 133.6MB in the beginning and 202.8MB in the end (delta: -69.1MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. [2023-12-21 02:29:20,240 INFO L158 Benchmark]: TraceAbstraction took 22079.18ms. Allocated memory was 261.1MB in the beginning and 490.7MB in the end (delta: 229.6MB). Free memory was 202.2MB in the beginning and 393.7MB in the end (delta: -191.4MB). Peak memory consumption was 270.5MB. Max. memory is 8.0GB. [2023-12-21 02:29:20,245 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 217.1MB. Free memory is still 165.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 255.59ms. Allocated memory is still 217.1MB. Free memory was 156.4MB in the beginning and 141.0MB in the end (delta: 15.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.70ms. Allocated memory is still 217.1MB. Free memory was 141.0MB in the beginning and 137.5MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.28ms. Allocated memory is still 217.1MB. Free memory was 137.5MB in the beginning and 133.6MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 548.31ms. Allocated memory was 217.1MB in the beginning and 261.1MB in the end (delta: 44.0MB). Free memory was 133.6MB in the beginning and 202.8MB in the end (delta: -69.1MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. * TraceAbstraction took 22079.18ms. Allocated memory was 261.1MB in the beginning and 490.7MB in the end (delta: 229.6MB). Free memory was 202.2MB in the beginning and 393.7MB in the end (delta: -191.4MB). Peak memory consumption was 270.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 17] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 15] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 15] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 25] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 14] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 17] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 26] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 25] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 27] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 21] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 15] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.0s, OverallIterations: 21, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2469 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2417 mSDsluCounter, 6540 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4751 mSDsCounter, 299 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5540 IncrementalHoareTripleChecker+Invalid, 5839 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 299 mSolverCounterUnsat, 1789 mSDtfsCounter, 5540 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3319 GetRequests, 3083 SyntacticMatches, 2 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=278occurred in iteration=9, InterpolantAutomatonStates: 199, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 21 MinimizatonAttempts, 297 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 429 PreInvPairs, 466 NumberOfFragments, 1620 HoareAnnotationTreeSize, 429 FormulaSimplifications, 6478 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 16 FormulaSimplificationsInter, 10426 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 2457 NumberOfCodeBlocks, 2457 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 3229 ConstructedInterpolants, 0 QuantifiedInterpolants, 17763 SizeOfPredicates, 141 NumberOfNonLiveVariables, 7336 ConjunctsInSsa, 409 ConjunctsInUnsatCore, 29 InterpolantComputations, 18 PerfectInterpolantSequences, 10265/10556 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-12-21 02:29:20,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...