/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/array-patterns/array23_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-18 20:17:07,049 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-18 20:17:07,117 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-18 20:17:07,125 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-18 20:17:07,125 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-18 20:17:07,147 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-18 20:17:07,148 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-18 20:17:07,148 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-18 20:17:07,148 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-18 20:17:07,151 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-18 20:17:07,151 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-18 20:17:07,152 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-18 20:17:07,152 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-18 20:17:07,153 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-18 20:17:07,153 INFO L153 SettingsManager]: * Use SBE=true [2023-12-18 20:17:07,154 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-18 20:17:07,154 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-18 20:17:07,154 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-18 20:17:07,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-18 20:17:07,154 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-18 20:17:07,154 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-18 20:17:07,155 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-18 20:17:07,155 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-18 20:17:07,155 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-18 20:17:07,155 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-18 20:17:07,155 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-18 20:17:07,155 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-18 20:17:07,155 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-18 20:17:07,156 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-18 20:17:07,156 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-18 20:17:07,157 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-18 20:17:07,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-18 20:17:07,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 20:17:07,157 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-18 20:17:07,157 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-18 20:17:07,157 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-18 20:17:07,158 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-18 20:17:07,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-18 20:17:07,158 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-18 20:17:07,158 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-18 20:17:07,158 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-18 20:17:07,158 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-18 20:17:07,158 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-18 20:17:07,158 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-18 20:17:07,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-18 20:17:07,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-18 20:17:07,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-18 20:17:07,351 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-18 20:17:07,351 INFO L274 PluginConnector]: CDTParser initialized [2023-12-18 20:17:07,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-patterns/array23_pattern.c [2023-12-18 20:17:08,334 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-18 20:17:08,507 INFO L384 CDTParser]: Found 1 translation units. [2023-12-18 20:17:08,507 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array23_pattern.c [2023-12-18 20:17:08,512 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bdd925f4/67aeac5aa73e4621b6877e21882418af/FLAG78628982f [2023-12-18 20:17:08,522 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bdd925f4/67aeac5aa73e4621b6877e21882418af [2023-12-18 20:17:08,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-18 20:17:08,533 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-18 20:17:08,535 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-18 20:17:08,535 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-18 20:17:08,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-18 20:17:08,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 08:17:08" (1/1) ... [2023-12-18 20:17:08,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f553c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:17:08, skipping insertion in model container [2023-12-18 20:17:08,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 08:17:08" (1/1) ... [2023-12-18 20:17:08,559 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-18 20:17:08,681 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array23_pattern.c[1347,1360] [2023-12-18 20:17:08,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 20:17:08,721 INFO L202 MainTranslator]: Completed pre-run [2023-12-18 20:17:08,730 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array23_pattern.c[1347,1360] [2023-12-18 20:17:08,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 20:17:08,764 INFO L206 MainTranslator]: Completed translation [2023-12-18 20:17:08,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:17:08 WrapperNode [2023-12-18 20:17:08,764 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-18 20:17:08,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-18 20:17:08,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-18 20:17:08,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-18 20:17:08,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:17:08" (1/1) ... [2023-12-18 20:17:08,782 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:17:08" (1/1) ... [2023-12-18 20:17:08,804 INFO L138 Inliner]: procedures = 17, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 110 [2023-12-18 20:17:08,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-18 20:17:08,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-18 20:17:08,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-18 20:17:08,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-18 20:17:08,819 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:17:08" (1/1) ... [2023-12-18 20:17:08,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:17:08" (1/1) ... [2023-12-18 20:17:08,825 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:17:08" (1/1) ... [2023-12-18 20:17:08,842 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2023-12-18 20:17:08,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:17:08" (1/1) ... [2023-12-18 20:17:08,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:17:08" (1/1) ... [2023-12-18 20:17:08,853 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:17:08" (1/1) ... [2023-12-18 20:17:08,856 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:17:08" (1/1) ... [2023-12-18 20:17:08,858 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:17:08" (1/1) ... [2023-12-18 20:17:08,858 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:17:08" (1/1) ... [2023-12-18 20:17:08,860 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-18 20:17:08,861 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-18 20:17:08,861 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-18 20:17:08,861 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-18 20:17:08,861 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:17:08" (1/1) ... [2023-12-18 20:17:08,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 20:17:08,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:17:08,896 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) [2023-12-18 20:17:08,916 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 [2023-12-18 20:17:08,923 INFO L130 BoogieDeclarations]: Found specification of procedure outerBoundaryPatternCheck [2023-12-18 20:17:08,923 INFO L138 BoogieDeclarations]: Found implementation of procedure outerBoundaryPatternCheck [2023-12-18 20:17:08,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-18 20:17:08,923 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-18 20:17:08,923 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-18 20:17:08,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-18 20:17:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-18 20:17:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-18 20:17:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-18 20:17:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-18 20:17:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-18 20:17:08,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-18 20:17:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-18 20:17:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-18 20:17:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-18 20:17:08,997 INFO L241 CfgBuilder]: Building ICFG [2023-12-18 20:17:09,000 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-18 20:17:09,178 INFO L282 CfgBuilder]: Performing block encoding [2023-12-18 20:17:09,203 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-18 20:17:09,203 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-12-18 20:17:09,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:17:09 BoogieIcfgContainer [2023-12-18 20:17:09,204 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-18 20:17:09,208 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-18 20:17:09,208 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-18 20:17:09,211 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-18 20:17:09,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 08:17:08" (1/3) ... [2023-12-18 20:17:09,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f56882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 08:17:09, skipping insertion in model container [2023-12-18 20:17:09,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:17:08" (2/3) ... [2023-12-18 20:17:09,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f56882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 08:17:09, skipping insertion in model container [2023-12-18 20:17:09,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:17:09" (3/3) ... [2023-12-18 20:17:09,213 INFO L112 eAbstractionObserver]: Analyzing ICFG array23_pattern.c [2023-12-18 20:17:09,225 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-18 20:17:09,225 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-18 20:17:09,269 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-18 20:17:09,276 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;@3e828997, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-18 20:17:09,276 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-18 20:17:09,279 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-18 20:17:09,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-18 20:17:09,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:17:09,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:17:09,286 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:17:09,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:17:09,292 INFO L85 PathProgramCache]: Analyzing trace with hash 993482277, now seen corresponding path program 1 times [2023-12-18 20:17:09,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:17:09,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410539996] [2023-12-18 20:17:09,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:17:09,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:17:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:17:09,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:17:09,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410539996] [2023-12-18 20:17:09,403 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-18 20:17:09,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274221467] [2023-12-18 20:17:09,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:17:09,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:17:09,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:17:09,418 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) [2023-12-18 20:17:09,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-18 20:17:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:17:09,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-18 20:17:09,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:17:09,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 20:17:09,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 20:17:09,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274221467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 20:17:09,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 20:17:09,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-18 20:17:09,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845477661] [2023-12-18 20:17:09,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 20:17:09,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-18 20:17:09,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:17:09,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-18 20:17:09,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-18 20:17:09,555 INFO L87 Difference]: Start difference. First operand has 36 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-18 20:17:09,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:17:09,583 INFO L93 Difference]: Finished difference Result 70 states and 108 transitions. [2023-12-18 20:17:09,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-18 20:17:09,585 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-12-18 20:17:09,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:17:09,590 INFO L225 Difference]: With dead ends: 70 [2023-12-18 20:17:09,590 INFO L226 Difference]: Without dead ends: 34 [2023-12-18 20:17:09,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-18 20:17:09,595 INFO L413 NwaCegarLoop]: 42 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, 42 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 [2023-12-18 20:17:09,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 20:17:09,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-12-18 20:17:09,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-12-18 20:17:09,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-18 20:17:09,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2023-12-18 20:17:09,627 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 14 [2023-12-18 20:17:09,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:17:09,627 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2023-12-18 20:17:09,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-18 20:17:09,628 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2023-12-18 20:17:09,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-18 20:17:09,631 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:17:09,631 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:17:09,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-18 20:17:09,836 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 [2023-12-18 20:17:09,836 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:17:09,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:17:09,837 INFO L85 PathProgramCache]: Analyzing trace with hash 774600703, now seen corresponding path program 1 times [2023-12-18 20:17:09,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:17:09,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221662152] [2023-12-18 20:17:09,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:17:09,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:17:09,862 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:17:09,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [59229335] [2023-12-18 20:17:09,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:17:09,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:17:09,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:17:09,867 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) [2023-12-18 20:17:09,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-18 20:17:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:17:09,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-18 20:17:09,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:17:10,049 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-18 20:17:10,049 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 20:17:10,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:17:10,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221662152] [2023-12-18 20:17:10,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:17:10,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59229335] [2023-12-18 20:17:10,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59229335] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 20:17:10,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 20:17:10,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-18 20:17:10,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338525659] [2023-12-18 20:17:10,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 20:17:10,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-18 20:17:10,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:17:10,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-18 20:17:10,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-18 20:17:10,053 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 20:17:10,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:17:10,086 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2023-12-18 20:17:10,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-18 20:17:10,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2023-12-18 20:17:10,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:17:10,090 INFO L225 Difference]: With dead ends: 41 [2023-12-18 20:17:10,090 INFO L226 Difference]: Without dead ends: 37 [2023-12-18 20:17:10,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-18 20:17:10,092 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 11 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 20:17:10,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 98 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 20:17:10,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-12-18 20:17:10,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-12-18 20:17:10,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 29 states have internal predecessors, (38), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-18 20:17:10,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2023-12-18 20:17:10,106 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 41 [2023-12-18 20:17:10,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:17:10,108 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2023-12-18 20:17:10,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 20:17:10,108 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2023-12-18 20:17:10,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-18 20:17:10,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:17:10,111 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:17:10,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-18 20:17:10,316 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 [2023-12-18 20:17:10,317 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:17:10,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:17:10,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1126091322, now seen corresponding path program 1 times [2023-12-18 20:17:10,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:17:10,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419155989] [2023-12-18 20:17:10,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:17:10,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:17:10,341 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:17:10,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [815960761] [2023-12-18 20:17:10,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:17:10,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:17:10,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:17:10,343 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) [2023-12-18 20:17:10,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-18 20:17:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:17:10,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-18 20:17:10,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:17:10,497 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-18 20:17:10,497 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 20:17:10,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:17:10,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419155989] [2023-12-18 20:17:10,497 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:17:10,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815960761] [2023-12-18 20:17:10,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815960761] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 20:17:10,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 20:17:10,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-18 20:17:10,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799989775] [2023-12-18 20:17:10,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 20:17:10,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-18 20:17:10,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:17:10,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-18 20:17:10,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-18 20:17:10,500 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 20:17:10,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:17:10,604 INFO L93 Difference]: Finished difference Result 77 states and 100 transitions. [2023-12-18 20:17:10,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-18 20:17:10,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2023-12-18 20:17:10,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:17:10,607 INFO L225 Difference]: With dead ends: 77 [2023-12-18 20:17:10,607 INFO L226 Difference]: Without dead ends: 45 [2023-12-18 20:17:10,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-18 20:17:10,610 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 22 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 20:17:10,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 96 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 20:17:10,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-12-18 20:17:10,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 38. [2023-12-18 20:17:10,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 30 states have (on average 1.3) internal successors, (39), 30 states have internal predecessors, (39), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-18 20:17:10,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2023-12-18 20:17:10,617 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 49 transitions. Word has length 45 [2023-12-18 20:17:10,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:17:10,618 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 49 transitions. [2023-12-18 20:17:10,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 20:17:10,618 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2023-12-18 20:17:10,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-18 20:17:10,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:17:10,619 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:17:10,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-18 20:17:10,820 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 [2023-12-18 20:17:10,820 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:17:10,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:17:10,821 INFO L85 PathProgramCache]: Analyzing trace with hash 412743318, now seen corresponding path program 1 times [2023-12-18 20:17:10,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:17:10,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364580654] [2023-12-18 20:17:10,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:17:10,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:17:10,832 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:17:10,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [574857350] [2023-12-18 20:17:10,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:17:10,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:17:10,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:17:10,836 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) [2023-12-18 20:17:10,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-18 20:17:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:17:10,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-18 20:17:10,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:17:10,912 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-18 20:17:10,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 20:17:10,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:17:10,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364580654] [2023-12-18 20:17:10,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:17:10,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574857350] [2023-12-18 20:17:10,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574857350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 20:17:10,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 20:17:10,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-18 20:17:10,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413810801] [2023-12-18 20:17:10,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 20:17:10,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-18 20:17:10,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:17:10,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-18 20:17:10,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-18 20:17:10,914 INFO L87 Difference]: Start difference. First operand 38 states and 49 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 20:17:10,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:17:10,955 INFO L93 Difference]: Finished difference Result 73 states and 96 transitions. [2023-12-18 20:17:10,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-18 20:17:10,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2023-12-18 20:17:10,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:17:10,956 INFO L225 Difference]: With dead ends: 73 [2023-12-18 20:17:10,956 INFO L226 Difference]: Without dead ends: 39 [2023-12-18 20:17:10,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-18 20:17:10,957 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 24 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 20:17:10,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 71 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 20:17:10,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-12-18 20:17:10,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2023-12-18 20:17:10,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-18 20:17:10,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2023-12-18 20:17:10,962 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 48 [2023-12-18 20:17:10,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:17:10,962 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2023-12-18 20:17:10,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 20:17:10,962 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2023-12-18 20:17:10,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-18 20:17:10,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:17:10,963 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:17:10,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-18 20:17:11,168 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 [2023-12-18 20:17:11,168 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:17:11,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:17:11,169 INFO L85 PathProgramCache]: Analyzing trace with hash -429315470, now seen corresponding path program 1 times [2023-12-18 20:17:11,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:17:11,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205675988] [2023-12-18 20:17:11,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:17:11,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:17:11,180 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:17:11,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1400626509] [2023-12-18 20:17:11,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:17:11,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:17:11,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:17:11,182 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) [2023-12-18 20:17:11,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-18 20:17:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:17:11,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-18 20:17:11,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:17:11,311 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-18 20:17:11,311 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 20:17:11,413 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-18 20:17:11,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:17:11,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205675988] [2023-12-18 20:17:11,413 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:17:11,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400626509] [2023-12-18 20:17:11,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400626509] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 20:17:11,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-18 20:17:11,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2023-12-18 20:17:11,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475925294] [2023-12-18 20:17:11,413 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-18 20:17:11,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-18 20:17:11,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:17:11,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-18 20:17:11,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-18 20:17:11,415 INFO L87 Difference]: Start difference. First operand 38 states and 48 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-18 20:17:11,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:17:11,513 INFO L93 Difference]: Finished difference Result 78 states and 98 transitions. [2023-12-18 20:17:11,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-18 20:17:11,514 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 49 [2023-12-18 20:17:11,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:17:11,514 INFO L225 Difference]: With dead ends: 78 [2023-12-18 20:17:11,515 INFO L226 Difference]: Without dead ends: 44 [2023-12-18 20:17:11,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-12-18 20:17:11,516 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 70 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 20:17:11,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 103 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 20:17:11,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-12-18 20:17:11,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-12-18 20:17:11,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 35 states have internal predecessors, (43), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-18 20:17:11,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2023-12-18 20:17:11,528 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 49 [2023-12-18 20:17:11,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:17:11,529 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2023-12-18 20:17:11,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-18 20:17:11,530 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2023-12-18 20:17:11,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-18 20:17:11,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:17:11,535 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:17:11,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-18 20:17:11,742 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 [2023-12-18 20:17:11,743 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:17:11,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:17:11,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1120416855, now seen corresponding path program 2 times [2023-12-18 20:17:11,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:17:11,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618062973] [2023-12-18 20:17:11,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:17:11,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:17:11,761 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:17:11,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [274818101] [2023-12-18 20:17:11,761 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-18 20:17:11,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:17:11,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:17:11,763 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) [2023-12-18 20:17:11,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-18 20:17:11,819 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-18 20:17:11,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 20:17:11,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-18 20:17:11,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:17:11,892 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-18 20:17:11,893 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 20:17:11,939 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-18 20:17:11,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:17:11,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618062973] [2023-12-18 20:17:11,941 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:17:11,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274818101] [2023-12-18 20:17:11,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274818101] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 20:17:11,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-18 20:17:11,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2023-12-18 20:17:11,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882894041] [2023-12-18 20:17:11,941 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-18 20:17:11,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-18 20:17:11,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:17:11,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-18 20:17:11,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-12-18 20:17:11,943 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-18 20:17:12,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:17:12,062 INFO L93 Difference]: Finished difference Result 93 states and 115 transitions. [2023-12-18 20:17:12,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-18 20:17:12,063 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 51 [2023-12-18 20:17:12,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:17:12,064 INFO L225 Difference]: With dead ends: 93 [2023-12-18 20:17:12,064 INFO L226 Difference]: Without dead ends: 62 [2023-12-18 20:17:12,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-18 20:17:12,064 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 42 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 20:17:12,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 132 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 20:17:12,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-12-18 20:17:12,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2023-12-18 20:17:12,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 45 states have internal predecessors, (55), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-18 20:17:12,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2023-12-18 20:17:12,071 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 51 [2023-12-18 20:17:12,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:17:12,071 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2023-12-18 20:17:12,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-18 20:17:12,072 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2023-12-18 20:17:12,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-18 20:17:12,072 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:17:12,072 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:17:12,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-18 20:17:12,280 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 [2023-12-18 20:17:12,280 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:17:12,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:17:12,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1454765375, now seen corresponding path program 3 times [2023-12-18 20:17:12,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:17:12,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497470580] [2023-12-18 20:17:12,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:17:12,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:17:12,292 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:17:12,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2114730971] [2023-12-18 20:17:12,292 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-18 20:17:12,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:17:12,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:17:12,293 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) [2023-12-18 20:17:12,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-18 20:17:12,546 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2023-12-18 20:17:12,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 20:17:12,549 WARN L260 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 106 conjunts are in the unsatisfiable core [2023-12-18 20:17:12,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:17:12,621 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 11 treesize of output 7 [2023-12-18 20:17:12,656 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 21 treesize of output 20 [2023-12-18 20:17:12,755 INFO L349 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2023-12-18 20:17:12,756 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 3 case distinctions, treesize of input 36 treesize of output 38 [2023-12-18 20:17:12,850 INFO L349 Elim1Store]: treesize reduction 62, result has 21.5 percent of original size [2023-12-18 20:17:12,850 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 5 case distinctions, treesize of input 50 treesize of output 55 [2023-12-18 20:17:14,454 INFO L349 Elim1Store]: treesize reduction 1122, result has 22.1 percent of original size [2023-12-18 20:17:14,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 141 treesize of output 371 [2023-12-18 20:17:25,099 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 180 treesize of output 158 [2023-12-18 20:17:25,714 INFO L349 Elim1Store]: treesize reduction 555, result has 11.8 percent of original size [2023-12-18 20:17:25,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 158 treesize of output 289 [2023-12-18 20:17:31,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:31,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:31,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:31,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:31,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:31,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:31,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:31,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:31,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:31,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:31,169 INFO L224 Elim1Store]: Index analysis took 117 ms [2023-12-18 20:17:33,422 INFO L349 Elim1Store]: treesize reduction 377, result has 19.8 percent of original size [2023-12-18 20:17:33,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 323 treesize of output 522 [2023-12-18 20:17:35,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:35,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:35,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:35,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:35,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:35,640 INFO L224 Elim1Store]: Index analysis took 428 ms [2023-12-18 20:17:35,813 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-18 20:17:36,012 INFO L349 Elim1Store]: treesize reduction 72, result has 8.9 percent of original size [2023-12-18 20:17:36,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 269 treesize of output 125 [2023-12-18 20:18:22,801 WARN L293 SmtUtils]: Spent 13.69s on a formula simplification that was a NOOP. DAG size: 176 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-18 20:19:13,289 WARN L293 SmtUtils]: Spent 17.00s on a formula simplification that was a NOOP. DAG size: 178 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-18 20:19:39,941 WARN L293 SmtUtils]: Spent 11.09s on a formula simplification that was a NOOP. DAG size: 178 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-18 20:20:08,119 WARN L293 SmtUtils]: Spent 10.08s on a formula simplification that was a NOOP. DAG size: 178 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-18 20:20:15,816 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 536 treesize of output 480 [2023-12-18 20:20:15,852 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-18 20:20:15,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1614 treesize of output 1381 [2023-12-18 20:20:18,692 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 13 proven. 40 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-18 20:20:18,693 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 20:20:22,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:20:22,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497470580] [2023-12-18 20:20:22,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:20:22,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114730971] [2023-12-18 20:20:22,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114730971] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 20:20:22,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-18 20:20:22,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2023-12-18 20:20:22,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354709457] [2023-12-18 20:20:22,547 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-18 20:20:22,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-12-18 20:20:22,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:20:22,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-12-18 20:20:22,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=3510, Unknown=9, NotChecked=0, Total=3906 [2023-12-18 20:20:22,550 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 41 states, 40 states have (on average 1.275) internal successors, (51), 37 states have internal predecessors, (51), 4 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-12-18 20:20:28,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:20:36,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:20:42,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:20:51,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:20:55,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:21:00,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:21:04,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:21:09,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:21:13,495 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int#1| |c_ULTIMATE.start_main_~#array~0#1.base|)) (.cse11 (mod (+ c_~ARR_SIZE~0 4294967295) 4294967296)) (.cse46 (* c_~ARR_SIZE~0 8))) (let ((.cse9 (+ .cse46 |c_ULTIMATE.start_main_~#array~0#1.offset| (- 8))) (.cse41 (* .cse11 c_~ARR_SIZE~0)) (.cse10 (+ .cse46 (- 4) |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse44 (* c_~ARR_SIZE~0 2)) (.cse6 (* c_~ARR_SIZE~0 4)) (.cse18 (= 0 (select .cse1 (+ |c_ULTIMATE.start_main_~#array~0#1.offset| 4))))) (let ((.cse19 (and (exists ((v_z_1 Int) (v_y_1 Int) (v_DerPreprocessor_3 Int) (v_DerPreprocessor_2 Int)) (let ((.cse55 (* 4 (* c_~ARR_SIZE~0 v_y_1 (- 4294967296)))) (.cse53 (+ .cse11 v_z_1)) (.cse56 (* (* c_~ARR_SIZE~0 v_z_1 (- 4294967295)) 4))) (let ((.cse52 (+ .cse46 .cse55 (* .cse53 .cse6) .cse56 |c_ULTIMATE.start_main_~#array~0#1.offset| (- 8))) (.cse54 (+ .cse46 .cse55 .cse56 (* (+ .cse11 (- 8589934592) v_z_1) .cse6) |c_ULTIMATE.start_main_~#array~0#1.offset| (- 8)))) (let ((.cse49 (store (store (store .cse1 .cse52 v_DerPreprocessor_2) .cse54 v_DerPreprocessor_3) (+ (* (+ .cse11 v_z_1 (- 4294967296)) .cse6) .cse46 .cse55 .cse56 |c_ULTIMATE.start_main_~#array~0#1.offset| (- 8)) (- 1))) (.cse50 (* (* c_~ARR_SIZE~0 v_y_1) 4294967296)) (.cse51 (* 4294967295 (* c_~ARR_SIZE~0 v_z_1)))) (and (= (select .cse49 |c_ULTIMATE.start_main_~#array~0#1.offset|) 1) (<= (+ 2 .cse50 .cse51) .cse44) (= (+ (select .cse1 .cse52) 1) 0) (<= 0 v_z_1) (<= .cse53 4294967295) (= (select .cse49 .cse54) (select .cse1 .cse54)) (<= c_~ARR_SIZE~0 (+ .cse50 .cse51 1))))))) .cse18)) (.cse20 (and (exists ((v_z_1 Int) (v_y_1 Int)) (let ((.cse45 (* c_~ARR_SIZE~0 v_z_1))) (let ((.cse42 (* (* c_~ARR_SIZE~0 v_y_1) 4294967296)) (.cse43 (* 4294967295 .cse45)) (.cse47 (* 4 (* c_~ARR_SIZE~0 v_y_1 (- 4294967296)))) (.cse48 (* (* c_~ARR_SIZE~0 v_z_1 (- 4294967295)) 4))) (and (<= (+ 2 .cse42 .cse43) .cse44) (= (+ (* c_~ARR_SIZE~0 4294967294) 2 (* 4294967294 .cse45) .cse42) .cse41) (= (select .cse1 (+ .cse46 .cse47 .cse48 (* (+ (* 4294967295 v_z_1) (* v_y_1 4294967296)) .cse6) |c_ULTIMATE.start_main_~#array~0#1.offset| (- 8))) 1) (<= c_~ARR_SIZE~0 (+ .cse42 .cse43 1)) (= (+ (select .cse1 (+ (* (+ .cse11 v_z_1 (- 4294967296)) .cse6) .cse46 .cse47 .cse48 |c_ULTIMATE.start_main_~#array~0#1.offset| (- 8))) 1) 0))))) (= (select .cse1 .cse10) 0) .cse18)) (.cse21 (and (exists ((v_z_1 Int) (v_y_1 Int)) (let ((.cse36 (* 4294967295 v_z_1)) (.cse37 (* v_y_1 4294967296)) (.cse38 (* (* .cse11 (- 1) c_~ARR_SIZE~0) 4)) (.cse39 (* 17179869184 c_~ARR_SIZE~0)) (.cse40 (* (* (- 1) c_~ARR_SIZE~0 v_z_1) 4)) (.cse35 (+ .cse41 (* c_~ARR_SIZE~0 v_z_1)))) (and (<= .cse35 (+ (* c_~ARR_SIZE~0 4294967296) 1)) (= c_~ARR_SIZE~0 (+ .cse36 .cse37 1)) (= (select .cse1 (+ .cse38 .cse39 (* (+ .cse36 .cse37) .cse6) |c_ULTIMATE.start_main_~#array~0#1.offset| 4 .cse40)) 1) (= (+ (select .cse1 (+ (* (+ .cse11 v_z_1 (- 4294967296)) .cse6) .cse38 .cse39 |c_ULTIMATE.start_main_~#array~0#1.offset| 4 .cse40)) 1) 0) (<= (+ 2 (* c_~ARR_SIZE~0 4294967295)) .cse35)))) (= (select .cse1 .cse9) 0) (= (select .cse1 |c_ULTIMATE.start_main_~#array~0#1.offset|) 0)))) (and (<= c_~ARR_SIZE~0 2) (= |c_ULTIMATE.start_main_~row~0#1| 0) (<= 1 c_~ARR_SIZE~0) (or (exists ((v_z_1 Int)) (let ((.cse0 (+ .cse11 v_z_1))) (and (<= 0 v_z_1) (<= .cse0 4294967295) (exists ((v_y_1 Int)) (let ((.cse3 (* 4 (* c_~ARR_SIZE~0 v_y_1 (- 4294967296)))) (.cse4 (* (* c_~ARR_SIZE~0 v_z_1 (- 4294967295)) 4))) (let ((.cse2 (+ .cse3 (* .cse0 .cse6) .cse4 |c_ULTIMATE.start_main_~#array~0#1.offset| 4)) (.cse5 (+ (* 4294967295 v_z_1) (* v_y_1 4294967296)))) (and (= (+ (select .cse1 .cse2) 1) 0) (<= 2 (+ c_~ARR_SIZE~0 (* (* c_~ARR_SIZE~0 v_y_1) 4294967296) (* 4294967295 (* c_~ARR_SIZE~0 v_z_1)))) (= (select .cse1 (+ .cse3 .cse4 (* .cse5 .cse6) |c_ULTIMATE.start_main_~#array~0#1.offset| 4)) 1) (exists ((v_DerPreprocessor_3 Int) (v_DerPreprocessor_2 Int)) (let ((.cse8 (+ .cse3 .cse4 (* (+ .cse11 (- 8589934592) v_z_1) .cse6) |c_ULTIMATE.start_main_~#array~0#1.offset| 4))) (let ((.cse7 (store (store (store .cse1 .cse2 v_DerPreprocessor_2) .cse8 v_DerPreprocessor_3) (+ (* (+ .cse11 v_z_1 (- 4294967296)) .cse6) .cse3 .cse4 |c_ULTIMATE.start_main_~#array~0#1.offset| 4) (- 1)))) (and (= (select .cse7 .cse8) (select .cse1 .cse8)) (= 0 (select .cse7 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (= (select .cse7 .cse9) 0) (= (select .cse7 .cse10) 0))))) (= .cse5 0)))))))) (and (exists ((v_z_1 Int) (v_y_1 Int) (v_DerPreprocessor_3 Int) (v_DerPreprocessor_2 Int)) (let ((.cse16 (* 4 (* c_~ARR_SIZE~0 v_y_1 (- 4294967296)))) (.cse15 (+ .cse11 v_z_1)) (.cse17 (* (* c_~ARR_SIZE~0 v_z_1 (- 4294967295)) 4))) (let ((.cse13 (+ .cse16 (* .cse15 .cse6) .cse17 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse14 (+ .cse16 .cse17 (* (+ .cse11 (- 8589934592) v_z_1) .cse6) |c_ULTIMATE.start_main_~#array~0#1.offset|))) (let ((.cse12 (store (store (store .cse1 .cse13 v_DerPreprocessor_2) .cse14 v_DerPreprocessor_3) (+ (* (+ .cse11 v_z_1 (- 4294967296)) .cse6) .cse16 .cse17 |c_ULTIMATE.start_main_~#array~0#1.offset|) (- 1)))) (and (= (select .cse12 |c_ULTIMATE.start_main_~#array~0#1.offset|) 1) (= (+ (select .cse1 .cse13) 1) 0) (<= 0 v_z_1) (= (select .cse12 .cse10) 0) (= (select .cse1 .cse14) (select .cse12 .cse14)) (<= .cse15 4294967295) (<= 1 (+ c_~ARR_SIZE~0 (* (* c_~ARR_SIZE~0 v_y_1) 4294967296) (* 4294967295 (* c_~ARR_SIZE~0 v_z_1)))) (= (select .cse12 .cse9) 0) (= (+ (* 4294967295 v_z_1) (* v_y_1 4294967296)) 0)))))) .cse18) .cse19 .cse20 .cse21) (or (exists ((v_z_1 Int)) (let ((.cse28 (+ .cse11 v_z_1))) (and (exists ((v_y_1 Int)) (let ((.cse23 (* 4 (* c_~ARR_SIZE~0 v_y_1 (- 4294967296)))) (.cse24 (* (* c_~ARR_SIZE~0 v_z_1 (- 4294967295)) 4))) (let ((.cse22 (+ .cse23 (* .cse28 .cse6) .cse24 |c_ULTIMATE.start_main_~#array~0#1.offset| 4)) (.cse25 (+ (* 4294967295 v_z_1) (* v_y_1 4294967296)))) (and (= (+ (select .cse1 .cse22) 1) 0) (= (select .cse1 (+ .cse23 .cse24 (* .cse25 .cse6) |c_ULTIMATE.start_main_~#array~0#1.offset| 4)) 1) (exists ((v_DerPreprocessor_3 Int) (v_DerPreprocessor_2 Int)) (let ((.cse27 (+ .cse23 .cse24 (* (+ .cse11 (- 8589934592) v_z_1) .cse6) |c_ULTIMATE.start_main_~#array~0#1.offset| 4))) (let ((.cse26 (store (store (store .cse1 .cse22 v_DerPreprocessor_2) .cse27 v_DerPreprocessor_3) (+ (* (+ .cse11 v_z_1 (- 4294967296)) .cse6) .cse23 .cse24 |c_ULTIMATE.start_main_~#array~0#1.offset| 4) (- 1)))) (and (= (select .cse26 .cse27) (select .cse1 .cse27)) (= 0 (select .cse26 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (= (select .cse26 .cse9) 0) (= (select .cse26 .cse10) 0))))) (= .cse25 0))))) (<= 0 v_z_1) (<= .cse28 4294967295)))) (and (exists ((v_z_1 Int) (v_y_1 Int) (v_DerPreprocessor_3 Int) (v_DerPreprocessor_2 Int)) (let ((.cse33 (* 4 (* c_~ARR_SIZE~0 v_y_1 (- 4294967296)))) (.cse32 (+ .cse11 v_z_1)) (.cse34 (* (* c_~ARR_SIZE~0 v_z_1 (- 4294967295)) 4))) (let ((.cse30 (+ .cse33 (* .cse32 .cse6) .cse34 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse31 (+ .cse33 .cse34 (* (+ .cse11 (- 8589934592) v_z_1) .cse6) |c_ULTIMATE.start_main_~#array~0#1.offset|))) (let ((.cse29 (store (store (store .cse1 .cse30 v_DerPreprocessor_2) .cse31 v_DerPreprocessor_3) (+ (* (+ .cse11 v_z_1 (- 4294967296)) .cse6) .cse33 .cse34 |c_ULTIMATE.start_main_~#array~0#1.offset|) (- 1)))) (and (= (select .cse29 |c_ULTIMATE.start_main_~#array~0#1.offset|) 1) (= (+ (select .cse1 .cse30) 1) 0) (<= 0 v_z_1) (= (select .cse29 .cse10) 0) (= (select .cse1 .cse31) (select .cse29 .cse31)) (<= .cse32 4294967295) (= (select .cse29 .cse9) 0) (= (+ (* 4294967295 v_z_1) (* v_y_1 4294967296)) 0)))))) .cse18) .cse19 .cse20 .cse21) (= |c_ULTIMATE.start_main_~sum~0#1| 0) (= |c_ULTIMATE.start_main_~column~0#1| 0))))) is different from false [2023-12-18 20:21:18,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:21:26,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:21:32,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:21:36,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:21:37,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:21:41,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:21:45,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:21:49,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:21:53,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:21:58,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:22:02,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:22:06,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:22:10,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:22:14,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:22:18,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:22:22,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:22:27,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:22:31,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:22:35,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:22:39,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:22:43,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:22:47,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:22:51,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:22:52,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:22:58,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:22:58,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:22:58,779 INFO L93 Difference]: Finished difference Result 155 states and 191 transitions. [2023-12-18 20:22:58,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-18 20:22:58,783 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 1.275) internal successors, (51), 37 states have internal predecessors, (51), 4 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 61 [2023-12-18 20:22:58,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:22:58,785 INFO L225 Difference]: With dead ends: 155 [2023-12-18 20:22:58,785 INFO L226 Difference]: Without dead ends: 110 [2023-12-18 20:22:58,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2072 ImplicationChecksByTransitivity, 129.5s TimeCoverageRelationStatistics Valid=605, Invalid=5393, Unknown=12, NotChecked=152, Total=6162 [2023-12-18 20:22:58,787 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 118 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 24 mSolverCounterUnsat, 30 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 141.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 30 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 141.6s IncrementalHoareTripleChecker+Time [2023-12-18 20:22:58,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 426 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1346 Invalid, 30 Unknown, 39 Unchecked, 141.6s Time] [2023-12-18 20:22:58,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-12-18 20:22:58,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 92. [2023-12-18 20:22:58,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 74 states have (on average 1.2162162162162162) internal successors, (90), 75 states have internal predecessors, (90), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-12-18 20:22:58,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 109 transitions. [2023-12-18 20:22:58,818 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 109 transitions. Word has length 61 [2023-12-18 20:22:58,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:22:58,819 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 109 transitions. [2023-12-18 20:22:58,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 1.275) internal successors, (51), 37 states have internal predecessors, (51), 4 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-12-18 20:22:58,819 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 109 transitions. [2023-12-18 20:22:58,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-18 20:22:58,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:22:58,821 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:22:58,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-18 20:22:59,029 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 [2023-12-18 20:22:59,030 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:22:59,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:22:59,030 INFO L85 PathProgramCache]: Analyzing trace with hash -539379331, now seen corresponding path program 1 times [2023-12-18 20:22:59,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:22:59,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001823623] [2023-12-18 20:22:59,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:22:59,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:22:59,038 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:22:59,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1038694289] [2023-12-18 20:22:59,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:22:59,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:22:59,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:22:59,040 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) [2023-12-18 20:22:59,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-18 20:22:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:22:59,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-18 20:22:59,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:22:59,123 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-18 20:22:59,123 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 20:22:59,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:22:59,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001823623] [2023-12-18 20:22:59,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:22:59,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038694289] [2023-12-18 20:22:59,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038694289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 20:22:59,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 20:22:59,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-18 20:22:59,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879694744] [2023-12-18 20:22:59,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 20:22:59,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-18 20:22:59,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:22:59,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-18 20:22:59,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-18 20:22:59,125 INFO L87 Difference]: Start difference. First operand 92 states and 109 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-18 20:22:59,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:22:59,165 INFO L93 Difference]: Finished difference Result 133 states and 160 transitions. [2023-12-18 20:22:59,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-18 20:22:59,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 61 [2023-12-18 20:22:59,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:22:59,167 INFO L225 Difference]: With dead ends: 133 [2023-12-18 20:22:59,167 INFO L226 Difference]: Without dead ends: 97 [2023-12-18 20:22:59,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-18 20:22:59,168 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 1 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 20:22:59,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 113 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 20:22:59,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-12-18 20:22:59,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2023-12-18 20:22:59,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 77 states have (on average 1.1948051948051948) internal successors, (92), 78 states have internal predecessors, (92), 9 states have call successors, (9), 7 states have call predecessors, (9), 9 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) [2023-12-18 20:22:59,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 113 transitions. [2023-12-18 20:22:59,198 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 113 transitions. Word has length 61 [2023-12-18 20:22:59,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:22:59,198 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 113 transitions. [2023-12-18 20:22:59,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-18 20:22:59,198 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 113 transitions. [2023-12-18 20:22:59,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-18 20:22:59,199 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:22:59,199 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:22:59,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-18 20:22:59,404 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 [2023-12-18 20:22:59,404 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:22:59,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:22:59,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1516804989, now seen corresponding path program 1 times [2023-12-18 20:22:59,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:22:59,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354664236] [2023-12-18 20:22:59,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:22:59,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:22:59,415 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:22:59,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1050015813] [2023-12-18 20:22:59,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:22:59,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:22:59,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:22:59,416 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) [2023-12-18 20:22:59,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-18 20:22:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:22:59,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-18 20:22:59,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:22:59,499 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-18 20:22:59,499 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 20:22:59,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:22:59,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354664236] [2023-12-18 20:22:59,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:22:59,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050015813] [2023-12-18 20:22:59,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050015813] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 20:22:59,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 20:22:59,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-18 20:22:59,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201881698] [2023-12-18 20:22:59,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 20:22:59,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-18 20:22:59,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:22:59,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-18 20:22:59,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-18 20:22:59,503 INFO L87 Difference]: Start difference. First operand 96 states and 113 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 20:22:59,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:22:59,542 INFO L93 Difference]: Finished difference Result 139 states and 166 transitions. [2023-12-18 20:22:59,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-18 20:22:59,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2023-12-18 20:22:59,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:22:59,544 INFO L225 Difference]: With dead ends: 139 [2023-12-18 20:22:59,544 INFO L226 Difference]: Without dead ends: 99 [2023-12-18 20:22:59,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-18 20:22:59,545 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 1 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 20:22:59,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 113 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 20:22:59,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-18 20:22:59,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2023-12-18 20:22:59,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 79 states have (on average 1.1772151898734178) internal successors, (93), 79 states have internal predecessors, (93), 9 states have call successors, (9), 7 states have call predecessors, (9), 9 states have return successors, (12), 11 states have call predecessors, (12), 9 states have call successors, (12) [2023-12-18 20:22:59,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 114 transitions. [2023-12-18 20:22:59,587 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 114 transitions. Word has length 61 [2023-12-18 20:22:59,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:22:59,587 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 114 transitions. [2023-12-18 20:22:59,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 20:22:59,587 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 114 transitions. [2023-12-18 20:22:59,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-18 20:22:59,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:22:59,588 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:22:59,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-18 20:22:59,788 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 [2023-12-18 20:22:59,791 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:22:59,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:22:59,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1466081502, now seen corresponding path program 1 times [2023-12-18 20:22:59,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:22:59,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030227720] [2023-12-18 20:22:59,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:22:59,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:22:59,805 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:22:59,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [964300188] [2023-12-18 20:22:59,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:22:59,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:22:59,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:22:59,806 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) [2023-12-18 20:22:59,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-18 20:22:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:22:59,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-18 20:22:59,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:22:59,874 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-18 20:22:59,874 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 20:22:59,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:22:59,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030227720] [2023-12-18 20:22:59,874 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:22:59,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964300188] [2023-12-18 20:22:59,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964300188] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 20:22:59,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 20:22:59,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-18 20:22:59,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173895254] [2023-12-18 20:22:59,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 20:22:59,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-18 20:22:59,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:22:59,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-18 20:22:59,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-18 20:22:59,876 INFO L87 Difference]: Start difference. First operand 98 states and 114 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 20:22:59,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:22:59,912 INFO L93 Difference]: Finished difference Result 141 states and 166 transitions. [2023-12-18 20:22:59,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-18 20:22:59,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2023-12-18 20:22:59,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:22:59,913 INFO L225 Difference]: With dead ends: 141 [2023-12-18 20:22:59,913 INFO L226 Difference]: Without dead ends: 99 [2023-12-18 20:22:59,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-18 20:22:59,914 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 1 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 20:22:59,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 124 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 20:22:59,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-18 20:22:59,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2023-12-18 20:22:59,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 79 states have (on average 1.1645569620253164) internal successors, (92), 79 states have internal predecessors, (92), 9 states have call successors, (9), 7 states have call predecessors, (9), 9 states have return successors, (12), 11 states have call predecessors, (12), 9 states have call successors, (12) [2023-12-18 20:22:59,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 113 transitions. [2023-12-18 20:22:59,939 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 113 transitions. Word has length 61 [2023-12-18 20:22:59,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:22:59,939 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 113 transitions. [2023-12-18 20:22:59,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 20:22:59,940 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 113 transitions. [2023-12-18 20:22:59,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-18 20:22:59,940 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:22:59,940 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:22:59,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-18 20:23:00,141 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 [2023-12-18 20:23:00,141 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:23:00,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:23:00,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1528121116, now seen corresponding path program 1 times [2023-12-18 20:23:00,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:23:00,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482075309] [2023-12-18 20:23:00,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:23:00,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:23:00,149 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:23:00,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1352617944] [2023-12-18 20:23:00,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:23:00,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:23:00,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:23:00,150 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) [2023-12-18 20:23:00,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-18 20:23:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:23:00,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-18 20:23:00,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:23:00,245 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-18 20:23:00,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 20:23:00,335 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-18 20:23:00,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:23:00,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482075309] [2023-12-18 20:23:00,336 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:23:00,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352617944] [2023-12-18 20:23:00,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352617944] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 20:23:00,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-18 20:23:00,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2023-12-18 20:23:00,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258051649] [2023-12-18 20:23:00,336 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-18 20:23:00,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-18 20:23:00,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:23:00,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-18 20:23:00,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-18 20:23:00,337 INFO L87 Difference]: Start difference. First operand 98 states and 113 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 20:23:00,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:23:00,476 INFO L93 Difference]: Finished difference Result 163 states and 192 transitions. [2023-12-18 20:23:00,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 20:23:00,477 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2023-12-18 20:23:00,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:23:00,477 INFO L225 Difference]: With dead ends: 163 [2023-12-18 20:23:00,477 INFO L226 Difference]: Without dead ends: 121 [2023-12-18 20:23:00,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-18 20:23:00,478 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 20 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 20:23:00,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 191 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 20:23:00,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-12-18 20:23:00,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 102. [2023-12-18 20:23:00,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 82 states have (on average 1.1585365853658536) internal successors, (95), 82 states have internal predecessors, (95), 10 states have call successors, (10), 8 states have call predecessors, (10), 9 states have return successors, (13), 11 states have call predecessors, (13), 10 states have call successors, (13) [2023-12-18 20:23:00,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 118 transitions. [2023-12-18 20:23:00,505 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 118 transitions. Word has length 61 [2023-12-18 20:23:00,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:23:00,505 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 118 transitions. [2023-12-18 20:23:00,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 20:23:00,505 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 118 transitions. [2023-12-18 20:23:00,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-18 20:23:00,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:23:00,506 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:23:00,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-18 20:23:00,710 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 [2023-12-18 20:23:00,710 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:23:00,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:23:00,710 INFO L85 PathProgramCache]: Analyzing trace with hash -509935173, now seen corresponding path program 1 times [2023-12-18 20:23:00,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:23:00,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029742316] [2023-12-18 20:23:00,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:23:00,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:23:00,717 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:23:00,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827731705] [2023-12-18 20:23:00,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:23:00,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:23:00,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:23:00,719 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) [2023-12-18 20:23:00,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-18 20:23:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:23:00,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-18 20:23:00,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:23:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-18 20:23:00,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 20:23:00,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:23:00,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029742316] [2023-12-18 20:23:00,802 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:23:00,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827731705] [2023-12-18 20:23:00,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827731705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 20:23:00,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 20:23:00,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-18 20:23:00,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093799565] [2023-12-18 20:23:00,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 20:23:00,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-18 20:23:00,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:23:00,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-18 20:23:00,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-18 20:23:00,803 INFO L87 Difference]: Start difference. First operand 102 states and 118 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-18 20:23:00,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:23:00,846 INFO L93 Difference]: Finished difference Result 149 states and 174 transitions. [2023-12-18 20:23:00,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-18 20:23:00,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 61 [2023-12-18 20:23:00,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:23:00,847 INFO L225 Difference]: With dead ends: 149 [2023-12-18 20:23:00,847 INFO L226 Difference]: Without dead ends: 103 [2023-12-18 20:23:00,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-18 20:23:00,847 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 1 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 20:23:00,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 124 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 20:23:00,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-18 20:23:00,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2023-12-18 20:23:00,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 82 states have (on average 1.146341463414634) internal successors, (94), 82 states have internal predecessors, (94), 10 states have call successors, (10), 8 states have call predecessors, (10), 9 states have return successors, (13), 11 states have call predecessors, (13), 10 states have call successors, (13) [2023-12-18 20:23:00,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 117 transitions. [2023-12-18 20:23:00,874 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 117 transitions. Word has length 61 [2023-12-18 20:23:00,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:23:00,874 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 117 transitions. [2023-12-18 20:23:00,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-18 20:23:00,874 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 117 transitions. [2023-12-18 20:23:00,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-18 20:23:00,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:23:00,875 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:23:00,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-18 20:23:01,083 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 [2023-12-18 20:23:01,084 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:23:01,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:23:01,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1790887417, now seen corresponding path program 1 times [2023-12-18 20:23:01,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:23:01,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575792186] [2023-12-18 20:23:01,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:23:01,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:23:01,092 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:23:01,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2107596391] [2023-12-18 20:23:01,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:23:01,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:23:01,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:23:01,095 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) [2023-12-18 20:23:01,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-18 20:23:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:23:01,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-18 20:23:01,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:23:01,288 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 14 proven. 15 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-18 20:23:01,289 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 20:23:01,436 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-18 20:23:01,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:23:01,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575792186] [2023-12-18 20:23:01,436 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:23:01,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107596391] [2023-12-18 20:23:01,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107596391] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 20:23:01,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-18 20:23:01,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 17 [2023-12-18 20:23:01,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989909365] [2023-12-18 20:23:01,436 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-18 20:23:01,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-18 20:23:01,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:23:01,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-18 20:23:01,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2023-12-18 20:23:01,438 INFO L87 Difference]: Start difference. First operand 102 states and 117 transitions. Second operand has 17 states, 17 states have (on average 3.235294117647059) internal successors, (55), 17 states have internal predecessors, (55), 4 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-12-18 20:23:01,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:23:01,867 INFO L93 Difference]: Finished difference Result 257 states and 299 transitions. [2023-12-18 20:23:01,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-18 20:23:01,867 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.235294117647059) internal successors, (55), 17 states have internal predecessors, (55), 4 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 61 [2023-12-18 20:23:01,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:23:01,868 INFO L225 Difference]: With dead ends: 257 [2023-12-18 20:23:01,868 INFO L226 Difference]: Without dead ends: 207 [2023-12-18 20:23:01,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 101 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2023-12-18 20:23:01,869 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 77 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-18 20:23:01,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 271 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-18 20:23:01,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-12-18 20:23:01,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 171. [2023-12-18 20:23:01,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 135 states have (on average 1.1555555555555554) internal successors, (156), 136 states have internal predecessors, (156), 19 states have call successors, (19), 15 states have call predecessors, (19), 16 states have return successors, (22), 19 states have call predecessors, (22), 19 states have call successors, (22) [2023-12-18 20:23:01,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 197 transitions. [2023-12-18 20:23:01,922 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 197 transitions. Word has length 61 [2023-12-18 20:23:01,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:23:01,922 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 197 transitions. [2023-12-18 20:23:01,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.235294117647059) internal successors, (55), 17 states have internal predecessors, (55), 4 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-12-18 20:23:01,922 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 197 transitions. [2023-12-18 20:23:01,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-18 20:23:01,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:23:01,923 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:23:01,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-18 20:23:02,124 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 [2023-12-18 20:23:02,125 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:23:02,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:23:02,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1160330186, now seen corresponding path program 4 times [2023-12-18 20:23:02,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:23:02,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323580279] [2023-12-18 20:23:02,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:23:02,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:23:02,132 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:23:02,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [608252012] [2023-12-18 20:23:02,132 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-18 20:23:02,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:23:02,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:23:02,134 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) [2023-12-18 20:23:02,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-18 20:23:02,186 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-18 20:23:02,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 20:23:02,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-18 20:23:02,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:23:02,254 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 27 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-18 20:23:02,255 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 20:23:02,314 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 19 proven. 12 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-18 20:23:02,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:23:02,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323580279] [2023-12-18 20:23:02,314 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:23:02,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608252012] [2023-12-18 20:23:02,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608252012] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 20:23:02,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-18 20:23:02,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2023-12-18 20:23:02,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580127026] [2023-12-18 20:23:02,315 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-18 20:23:02,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-18 20:23:02,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:23:02,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-18 20:23:02,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-18 20:23:02,316 INFO L87 Difference]: Start difference. First operand 171 states and 197 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-18 20:23:02,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:23:02,543 INFO L93 Difference]: Finished difference Result 319 states and 372 transitions. [2023-12-18 20:23:02,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-18 20:23:02,543 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 62 [2023-12-18 20:23:02,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:23:02,544 INFO L225 Difference]: With dead ends: 319 [2023-12-18 20:23:02,544 INFO L226 Difference]: Without dead ends: 231 [2023-12-18 20:23:02,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 108 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2023-12-18 20:23:02,545 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 95 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 20:23:02,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 146 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 20:23:02,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-12-18 20:23:02,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 187. [2023-12-18 20:23:02,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 151 states have (on average 1.1390728476821192) internal successors, (172), 152 states have internal predecessors, (172), 19 states have call successors, (19), 15 states have call predecessors, (19), 16 states have return successors, (22), 19 states have call predecessors, (22), 19 states have call successors, (22) [2023-12-18 20:23:02,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 213 transitions. [2023-12-18 20:23:02,600 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 213 transitions. Word has length 62 [2023-12-18 20:23:02,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:23:02,601 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 213 transitions. [2023-12-18 20:23:02,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-18 20:23:02,601 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 213 transitions. [2023-12-18 20:23:02,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-18 20:23:02,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:23:02,602 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:23:02,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-18 20:23:02,805 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 [2023-12-18 20:23:02,806 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:23:02,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:23:02,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1426962455, now seen corresponding path program 2 times [2023-12-18 20:23:02,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:23:02,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083591580] [2023-12-18 20:23:02,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:23:02,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:23:02,814 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:23:02,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [288067894] [2023-12-18 20:23:02,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-18 20:23:02,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:23:02,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:23:02,816 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) [2023-12-18 20:23:02,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-18 20:23:02,882 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-18 20:23:02,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 20:23:02,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-18 20:23:02,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:23:02,952 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 11 proven. 23 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-18 20:23:02,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 20:23:03,011 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-18 20:23:03,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:23:03,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083591580] [2023-12-18 20:23:03,011 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:23:03,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288067894] [2023-12-18 20:23:03,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288067894] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 20:23:03,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-18 20:23:03,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-12-18 20:23:03,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206661293] [2023-12-18 20:23:03,012 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-18 20:23:03,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-18 20:23:03,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:23:03,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-18 20:23:03,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2023-12-18 20:23:03,013 INFO L87 Difference]: Start difference. First operand 187 states and 213 transitions. Second operand has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-18 20:23:03,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:23:03,261 INFO L93 Difference]: Finished difference Result 323 states and 372 transitions. [2023-12-18 20:23:03,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-18 20:23:03,261 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2023-12-18 20:23:03,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:23:03,262 INFO L225 Difference]: With dead ends: 323 [2023-12-18 20:23:03,262 INFO L226 Difference]: Without dead ends: 180 [2023-12-18 20:23:03,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 110 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2023-12-18 20:23:03,263 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 43 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 20:23:03,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 159 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 20:23:03,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-18 20:23:03,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 160. [2023-12-18 20:23:03,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 133 states have (on average 1.150375939849624) internal successors, (153), 133 states have internal predecessors, (153), 15 states have call successors, (15), 11 states have call predecessors, (15), 11 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2023-12-18 20:23:03,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 185 transitions. [2023-12-18 20:23:03,307 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 185 transitions. Word has length 63 [2023-12-18 20:23:03,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:23:03,307 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 185 transitions. [2023-12-18 20:23:03,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-18 20:23:03,307 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 185 transitions. [2023-12-18 20:23:03,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-18 20:23:03,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:23:03,308 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:23:03,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-18 20:23:03,512 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 [2023-12-18 20:23:03,512 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:23:03,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:23:03,512 INFO L85 PathProgramCache]: Analyzing trace with hash 635725083, now seen corresponding path program 5 times [2023-12-18 20:23:03,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:23:03,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449091128] [2023-12-18 20:23:03,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:23:03,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:23:03,522 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:23:03,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [605851477] [2023-12-18 20:23:03,523 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-18 20:23:03,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:23:03,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:23:03,524 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) [2023-12-18 20:23:03,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-18 20:23:03,597 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-12-18 20:23:03,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 20:23:03,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-18 20:23:03,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:23:03,646 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 44 proven. 3 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-18 20:23:03,646 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 20:23:03,715 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-18 20:23:03,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:23:03,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449091128] [2023-12-18 20:23:03,715 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:23:03,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605851477] [2023-12-18 20:23:03,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605851477] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 20:23:03,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-18 20:23:03,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-12-18 20:23:03,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593635447] [2023-12-18 20:23:03,715 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-18 20:23:03,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-18 20:23:03,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:23:03,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-18 20:23:03,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2023-12-18 20:23:03,716 INFO L87 Difference]: Start difference. First operand 160 states and 185 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-18 20:23:03,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:23:03,934 INFO L93 Difference]: Finished difference Result 210 states and 238 transitions. [2023-12-18 20:23:03,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-18 20:23:03,935 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2023-12-18 20:23:03,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:23:03,935 INFO L225 Difference]: With dead ends: 210 [2023-12-18 20:23:03,936 INFO L226 Difference]: Without dead ends: 159 [2023-12-18 20:23:03,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 116 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2023-12-18 20:23:03,936 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 132 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 20:23:03,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 134 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 20:23:03,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-12-18 20:23:03,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 155. [2023-12-18 20:23:03,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 128 states have (on average 1.1171875) internal successors, (143), 128 states have internal predecessors, (143), 15 states have call successors, (15), 11 states have call predecessors, (15), 11 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2023-12-18 20:23:03,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 175 transitions. [2023-12-18 20:23:03,987 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 175 transitions. Word has length 66 [2023-12-18 20:23:03,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:23:03,987 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 175 transitions. [2023-12-18 20:23:03,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-18 20:23:03,988 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 175 transitions. [2023-12-18 20:23:03,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-18 20:23:03,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:23:03,988 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:23:03,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-12-18 20:23:04,192 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 [2023-12-18 20:23:04,193 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:23:04,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:23:04,193 INFO L85 PathProgramCache]: Analyzing trace with hash -935028437, now seen corresponding path program 6 times [2023-12-18 20:23:04,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:23:04,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703820909] [2023-12-18 20:23:04,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:23:04,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:23:04,200 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:23:04,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2100655743] [2023-12-18 20:23:04,201 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-18 20:23:04,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:23:04,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:23:04,202 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) [2023-12-18 20:23:04,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-18 20:23:04,487 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2023-12-18 20:23:04,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 20:23:04,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-18 20:23:04,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:23:04,563 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 57 proven. 15 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-18 20:23:04,564 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 20:23:04,629 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 40 proven. 24 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-18 20:23:04,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:23:04,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703820909] [2023-12-18 20:23:04,629 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:23:04,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100655743] [2023-12-18 20:23:04,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100655743] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 20:23:04,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-18 20:23:04,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2023-12-18 20:23:04,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237422020] [2023-12-18 20:23:04,629 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-18 20:23:04,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-18 20:23:04,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:23:04,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-18 20:23:04,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-18 20:23:04,630 INFO L87 Difference]: Start difference. First operand 155 states and 175 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-18 20:23:04,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:23:04,759 INFO L93 Difference]: Finished difference Result 195 states and 216 transitions. [2023-12-18 20:23:04,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-18 20:23:04,759 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 68 [2023-12-18 20:23:04,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:23:04,760 INFO L225 Difference]: With dead ends: 195 [2023-12-18 20:23:04,760 INFO L226 Difference]: Without dead ends: 151 [2023-12-18 20:23:04,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 124 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2023-12-18 20:23:04,761 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 66 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 20:23:04,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 147 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 20:23:04,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-12-18 20:23:04,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 147. [2023-12-18 20:23:04,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 122 states have (on average 1.098360655737705) internal successors, (134), 121 states have internal predecessors, (134), 14 states have call successors, (14), 10 states have call predecessors, (14), 10 states have return successors, (16), 15 states have call predecessors, (16), 14 states have call successors, (16) [2023-12-18 20:23:04,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 164 transitions. [2023-12-18 20:23:04,798 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 164 transitions. Word has length 68 [2023-12-18 20:23:04,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:23:04,799 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 164 transitions. [2023-12-18 20:23:04,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-18 20:23:04,799 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 164 transitions. [2023-12-18 20:23:04,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-18 20:23:04,799 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:23:04,799 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:23:04,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-18 20:23:05,011 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 [2023-12-18 20:23:05,011 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:23:05,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:23:05,011 INFO L85 PathProgramCache]: Analyzing trace with hash 6390840, now seen corresponding path program 7 times [2023-12-18 20:23:05,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:23:05,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270399247] [2023-12-18 20:23:05,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:23:05,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:23:05,020 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:23:05,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [94869292] [2023-12-18 20:23:05,020 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-18 20:23:05,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:23:05,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:23:05,021 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) [2023-12-18 20:23:05,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-18 20:23:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:23:05,791 WARN L260 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 169 conjunts are in the unsatisfiable core [2023-12-18 20:23:05,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:23:05,836 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 11 treesize of output 7 [2023-12-18 20:23:05,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-18 20:23:05,908 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-18 20:23:05,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-12-18 20:23:06,052 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-18 20:23:06,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-12-18 20:23:06,097 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-18 20:23:06,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 48 [2023-12-18 20:23:06,148 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-18 20:23:06,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 47 treesize of output 58 [2023-12-18 20:23:06,355 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-18 20:23:06,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 54 treesize of output 68 [2023-12-18 20:23:06,414 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-18 20:23:06,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 61 treesize of output 78 [2023-12-18 20:23:06,486 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-18 20:23:06,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 68 treesize of output 88 [2023-12-18 20:23:07,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:07,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:07,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:07,947 INFO L349 Elim1Store]: treesize reduction 336, result has 31.8 percent of original size [2023-12-18 20:23:07,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 39 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 165 case distinctions, treesize of input 144 treesize of output 266 [2023-12-18 20:23:09,759 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 199 treesize of output 167 [2023-12-18 20:23:09,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:09,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:09,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:09,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:09,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:09,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:09,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:09,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:09,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:09,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:09,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:09,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:09,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:09,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:09,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:09,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:09,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:09,855 INFO L349 Elim1Store]: treesize reduction 318, result has 0.3 percent of original size [2023-12-18 20:23:09,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 10 select indices, 10 select index equivalence classes, 54 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 12 case distinctions, treesize of input 167 treesize of output 294 [2023-12-18 20:23:10,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:10,656 INFO L349 Elim1Store]: treesize reduction 339, result has 18.3 percent of original size [2023-12-18 20:23:10,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 14 new quantified variables, introduced 18 case distinctions, treesize of input 244 treesize of output 429 [2023-12-18 20:23:11,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:23:11,501 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-18 20:23:11,539 INFO L349 Elim1Store]: treesize reduction 48, result has 45.5 percent of original size [2023-12-18 20:23:11,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 46 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 166 treesize of output 142 [2023-12-18 20:23:35,402 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 1053 treesize of output 949 [2023-12-18 20:23:35,607 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-18 20:23:35,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 36 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 69 case distinctions, treesize of input 505 treesize of output 596 [2023-12-18 20:23:38,954 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 11 proven. 154 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-18 20:23:38,955 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 20:24:17,968 WARN L293 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 79 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-18 20:24:46,834 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 60 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:24:57,473 WARN L293 SmtUtils]: Spent 6.36s on a formula simplification that was a NOOP. DAG size: 58 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:25:05,848 WARN L876 $PredicateComparison]: unable to prove that (or (= |c_outerBoundaryPatternCheck_#res| 0) (and (not (= (+ |c_outerBoundaryPatternCheck_#in~index| 1) c_~ARR_SIZE~0)) (not (= |c_outerBoundaryPatternCheck_#in~index| 0))) (let ((.cse23 (mod (+ (* |c_outerBoundaryPatternCheck_#in~index| 4294967295) c_~ARR_SIZE~0 4294967295) 4294967296)) (.cse0 (mod (+ c_~ARR_SIZE~0 4294967295) 4294967296)) (.cse21 (* c_~ARR_SIZE~0 4))) (let ((.cse14 (* .cse0 .cse21)) (.cse17 (* |c_outerBoundaryPatternCheck_#in~index| .cse21)) (.cse18 (* .cse23 .cse21)) (.cse20 (* (+ (- 1) c_~ARR_SIZE~0) .cse21)) (.cse22 (* c_~ARR_SIZE~0 8))) (and (or (< 2147483647 .cse0) (forall ((|v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_12| Int) (|v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| Int) (|v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_8| Int) (|v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12| Int)) (let ((.cse15 (* |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_8| 4))) (let ((.cse6 (+ .cse22 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|)) (.cse7 (+ .cse22 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 4)) (.cse9 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 8 .cse21)) (.cse4 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse21 4)) (.cse3 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 4)) (.cse8 (+ .cse22 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 8)) (.cse5 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 8)) (.cse10 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse21)) (.cse11 (select |c_#memory_int#1| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_12|)) (.cse13 (* |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12| |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|)) (.cse12 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse15))) (let ((.cse1 (let ((.cse19 (store (store .cse11 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse20 .cse15) .cse13) .cse12 |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse19 .cse6) (select .cse19 .cse7) (select .cse19 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse19 .cse9) (select .cse19 .cse4) (select .cse19 .cse3) (select .cse19 .cse8) (select .cse19 .cse5) (select .cse19 .cse10))))) (or (not (= .cse1 (let ((.cse2 (store (store .cse11 .cse12 .cse13) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse14 .cse15) |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse2 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse2 .cse3) (select .cse2 .cse4) (select .cse2 .cse5) (select .cse2 .cse6) (select .cse2 .cse7) (select .cse2 .cse8) (select .cse2 .cse9) (select .cse2 .cse10))))) (= .cse1 (let ((.cse16 (store (store .cse11 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse17 .cse15) .cse13) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse18 .cse15) |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse16 .cse9) (select .cse16 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse16 .cse6) (select .cse16 .cse7) (select .cse16 .cse3) (select .cse16 .cse8) (select .cse16 .cse4) (select .cse16 .cse10) (select .cse16 .cse5)))))))))) (or (< 2147483647 .cse23) (forall ((|v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| Int) (|v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_12| Int) (|v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_8| Int) (|v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12| Int)) (let ((.cse35 (* |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_8| 4))) (let ((.cse30 (+ .cse22 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|)) (.cse29 (+ .cse22 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 4)) (.cse32 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 8 .cse21)) (.cse31 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse21 4)) (.cse27 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 4)) (.cse33 (+ .cse22 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 8)) (.cse28 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 8)) (.cse26 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse21)) (.cse38 (select |c_#memory_int#1| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_12|)) (.cse41 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse35)) (.cse39 (* |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12| |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (let ((.cse34 (store .cse38 .cse41 .cse39)) (.cse24 (let ((.cse40 (store (store .cse38 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse20 .cse35) .cse39) .cse41 |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse40 .cse30) (select .cse40 .cse29) (select .cse40 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse40 .cse32) (select .cse40 .cse31) (select .cse40 .cse27) (select .cse40 .cse33) (select .cse40 .cse28) (select .cse40 .cse26))))) (or (not (= .cse24 (let ((.cse25 (store .cse34 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| (* .cse21 (+ .cse0 (- 4294967296))) .cse35) |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse25 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse25 .cse26) (select .cse25 .cse27) (select .cse25 .cse28) (select .cse25 .cse29) (select .cse25 .cse30) (select .cse25 .cse31) (select .cse25 .cse32) (select .cse25 .cse33))))) (not (= .cse24 (let ((.cse36 (store .cse34 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse14 .cse35) |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse36 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse36 .cse27) (select .cse36 .cse31) (select .cse36 .cse28) (select .cse36 .cse30) (select .cse36 .cse29) (select .cse36 .cse33) (select .cse36 .cse32) (select .cse36 .cse26))))) (= .cse24 (let ((.cse37 (store (store .cse38 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse17 .cse35) .cse39) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse18 .cse35) |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse37 .cse32) (select .cse37 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse37 .cse30) (select .cse37 .cse29) (select .cse37 .cse27) (select .cse37 .cse33) (select .cse37 .cse31) (select .cse37 .cse26) (select .cse37 .cse28)))))))))))))) is different from true [2023-12-18 20:25:10,979 WARN L293 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 58 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:25:18,993 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 60 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:25:44,468 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 60 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:26:01,456 WARN L876 $PredicateComparison]: unable to prove that (or (and (not (= (+ c_outerBoundaryPatternCheck_~index 1) c_~ARR_SIZE~0)) (not (= c_outerBoundaryPatternCheck_~index 0))) (and (not (= (+ |c_outerBoundaryPatternCheck_#in~index| 1) c_~ARR_SIZE~0)) (not (= |c_outerBoundaryPatternCheck_#in~index| 0))) (let ((.cse23 (mod (+ (* |c_outerBoundaryPatternCheck_#in~index| 4294967295) c_~ARR_SIZE~0 4294967295) 4294967296)) (.cse0 (mod (+ c_~ARR_SIZE~0 4294967295) 4294967296)) (.cse21 (* c_~ARR_SIZE~0 4))) (let ((.cse14 (* .cse0 .cse21)) (.cse17 (* |c_outerBoundaryPatternCheck_#in~index| .cse21)) (.cse18 (* .cse23 .cse21)) (.cse20 (* (+ (- 1) c_~ARR_SIZE~0) .cse21)) (.cse22 (* c_~ARR_SIZE~0 8))) (and (or (< 2147483647 .cse0) (forall ((|v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_12| Int) (|v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| Int) (|v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_8| Int) (|v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12| Int)) (let ((.cse15 (* |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_8| 4))) (let ((.cse6 (+ .cse22 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|)) (.cse7 (+ .cse22 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 4)) (.cse9 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 8 .cse21)) (.cse4 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse21 4)) (.cse3 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 4)) (.cse8 (+ .cse22 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 8)) (.cse5 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 8)) (.cse10 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse21)) (.cse11 (select |c_#memory_int#1| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_12|)) (.cse13 (* |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12| |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|)) (.cse12 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse15))) (let ((.cse1 (let ((.cse19 (store (store .cse11 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse20 .cse15) .cse13) .cse12 |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse19 .cse6) (select .cse19 .cse7) (select .cse19 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse19 .cse9) (select .cse19 .cse4) (select .cse19 .cse3) (select .cse19 .cse8) (select .cse19 .cse5) (select .cse19 .cse10))))) (or (not (= .cse1 (let ((.cse2 (store (store .cse11 .cse12 .cse13) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse14 .cse15) |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse2 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse2 .cse3) (select .cse2 .cse4) (select .cse2 .cse5) (select .cse2 .cse6) (select .cse2 .cse7) (select .cse2 .cse8) (select .cse2 .cse9) (select .cse2 .cse10))))) (= .cse1 (let ((.cse16 (store (store .cse11 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse17 .cse15) .cse13) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse18 .cse15) |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse16 .cse9) (select .cse16 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse16 .cse6) (select .cse16 .cse7) (select .cse16 .cse3) (select .cse16 .cse8) (select .cse16 .cse4) (select .cse16 .cse10) (select .cse16 .cse5)))))))))) (or (< 2147483647 .cse23) (forall ((|v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| Int) (|v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_12| Int) (|v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_8| Int) (|v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12| Int)) (let ((.cse35 (* |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_8| 4))) (let ((.cse30 (+ .cse22 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|)) (.cse29 (+ .cse22 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 4)) (.cse32 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 8 .cse21)) (.cse31 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse21 4)) (.cse27 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 4)) (.cse33 (+ .cse22 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 8)) (.cse28 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 8)) (.cse26 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse21)) (.cse38 (select |c_#memory_int#1| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_12|)) (.cse41 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse35)) (.cse39 (* |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12| |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (let ((.cse34 (store .cse38 .cse41 .cse39)) (.cse24 (let ((.cse40 (store (store .cse38 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse20 .cse35) .cse39) .cse41 |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse40 .cse30) (select .cse40 .cse29) (select .cse40 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse40 .cse32) (select .cse40 .cse31) (select .cse40 .cse27) (select .cse40 .cse33) (select .cse40 .cse28) (select .cse40 .cse26))))) (or (not (= .cse24 (let ((.cse25 (store .cse34 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| (* .cse21 (+ .cse0 (- 4294967296))) .cse35) |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse25 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse25 .cse26) (select .cse25 .cse27) (select .cse25 .cse28) (select .cse25 .cse29) (select .cse25 .cse30) (select .cse25 .cse31) (select .cse25 .cse32) (select .cse25 .cse33))))) (not (= .cse24 (let ((.cse36 (store .cse34 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse14 .cse35) |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse36 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse36 .cse27) (select .cse36 .cse31) (select .cse36 .cse28) (select .cse36 .cse30) (select .cse36 .cse29) (select .cse36 .cse33) (select .cse36 .cse32) (select .cse36 .cse26))))) (= .cse24 (let ((.cse37 (store (store .cse38 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse17 .cse35) .cse39) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse18 .cse35) |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse37 .cse32) (select .cse37 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse37 .cse30) (select .cse37 .cse29) (select .cse37 .cse27) (select .cse37 .cse33) (select .cse37 .cse31) (select .cse37 .cse26) (select .cse37 .cse28)))))))))))))) is different from true [2023-12-18 20:26:07,874 WARN L293 SmtUtils]: Spent 6.40s on a formula simplification that was a NOOP. DAG size: 58 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:26:15,889 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 60 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:26:32,612 WARN L876 $PredicateComparison]: unable to prove that (or (and (not (= (+ |c_outerBoundaryPatternCheck_#in~index| 1) c_~ARR_SIZE~0)) (not (= |c_outerBoundaryPatternCheck_#in~index| 0))) (let ((.cse23 (mod (+ (* |c_outerBoundaryPatternCheck_#in~index| 4294967295) c_~ARR_SIZE~0 4294967295) 4294967296)) (.cse0 (mod (+ c_~ARR_SIZE~0 4294967295) 4294967296)) (.cse21 (* c_~ARR_SIZE~0 4))) (let ((.cse14 (* .cse0 .cse21)) (.cse17 (* |c_outerBoundaryPatternCheck_#in~index| .cse21)) (.cse18 (* .cse23 .cse21)) (.cse20 (* (+ (- 1) c_~ARR_SIZE~0) .cse21)) (.cse22 (* c_~ARR_SIZE~0 8))) (and (or (< 2147483647 .cse0) (forall ((|v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_12| Int) (|v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| Int) (|v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_8| Int) (|v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12| Int)) (let ((.cse15 (* |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_8| 4))) (let ((.cse6 (+ .cse22 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|)) (.cse7 (+ .cse22 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 4)) (.cse9 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 8 .cse21)) (.cse4 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse21 4)) (.cse3 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 4)) (.cse8 (+ .cse22 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 8)) (.cse5 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 8)) (.cse10 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse21)) (.cse11 (select |c_#memory_int#1| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_12|)) (.cse13 (* |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12| |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|)) (.cse12 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse15))) (let ((.cse1 (let ((.cse19 (store (store .cse11 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse20 .cse15) .cse13) .cse12 |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse19 .cse6) (select .cse19 .cse7) (select .cse19 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse19 .cse9) (select .cse19 .cse4) (select .cse19 .cse3) (select .cse19 .cse8) (select .cse19 .cse5) (select .cse19 .cse10))))) (or (not (= .cse1 (let ((.cse2 (store (store .cse11 .cse12 .cse13) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse14 .cse15) |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse2 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse2 .cse3) (select .cse2 .cse4) (select .cse2 .cse5) (select .cse2 .cse6) (select .cse2 .cse7) (select .cse2 .cse8) (select .cse2 .cse9) (select .cse2 .cse10))))) (= .cse1 (let ((.cse16 (store (store .cse11 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse17 .cse15) .cse13) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse18 .cse15) |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse16 .cse9) (select .cse16 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse16 .cse6) (select .cse16 .cse7) (select .cse16 .cse3) (select .cse16 .cse8) (select .cse16 .cse4) (select .cse16 .cse10) (select .cse16 .cse5)))))))))) (or (< 2147483647 .cse23) (forall ((|v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| Int) (|v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_12| Int) (|v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_8| Int) (|v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12| Int)) (let ((.cse35 (* |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_8| 4))) (let ((.cse30 (+ .cse22 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|)) (.cse29 (+ .cse22 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 4)) (.cse32 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 8 .cse21)) (.cse31 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse21 4)) (.cse27 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 4)) (.cse33 (+ .cse22 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 8)) (.cse28 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| 8)) (.cse26 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse21)) (.cse38 (select |c_#memory_int#1| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_12|)) (.cse41 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse35)) (.cse39 (* |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12| |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (let ((.cse34 (store .cse38 .cse41 .cse39)) (.cse24 (let ((.cse40 (store (store .cse38 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse20 .cse35) .cse39) .cse41 |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse40 .cse30) (select .cse40 .cse29) (select .cse40 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse40 .cse32) (select .cse40 .cse31) (select .cse40 .cse27) (select .cse40 .cse33) (select .cse40 .cse28) (select .cse40 .cse26))))) (or (not (= .cse24 (let ((.cse25 (store .cse34 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| (* .cse21 (+ .cse0 (- 4294967296))) .cse35) |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse25 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse25 .cse26) (select .cse25 .cse27) (select .cse25 .cse28) (select .cse25 .cse29) (select .cse25 .cse30) (select .cse25 .cse31) (select .cse25 .cse32) (select .cse25 .cse33))))) (not (= .cse24 (let ((.cse36 (store .cse34 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse14 .cse35) |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse36 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse36 .cse27) (select .cse36 .cse31) (select .cse36 .cse28) (select .cse36 .cse30) (select .cse36 .cse29) (select .cse36 .cse33) (select .cse36 .cse32) (select .cse36 .cse26))))) (= .cse24 (let ((.cse37 (store (store .cse38 (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse17 .cse35) .cse39) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12| .cse18 .cse35) |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_12|))) (+ (select .cse37 .cse32) (select .cse37 |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_12|) (select .cse37 .cse30) (select .cse37 .cse29) (select .cse37 .cse27) (select .cse37 .cse33) (select .cse37 .cse31) (select .cse37 .cse26) (select .cse37 .cse28)))))))))))))) is different from true [2023-12-18 20:26:44,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:26:44,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270399247] [2023-12-18 20:26:44,219 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:26:44,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94869292] [2023-12-18 20:26:44,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94869292] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 20:26:44,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-18 20:26:44,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2023-12-18 20:26:44,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20341587] [2023-12-18 20:26:44,219 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-18 20:26:44,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-12-18 20:26:44,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:26:44,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-12-18 20:26:44,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=5079, Unknown=9, NotChecked=438, Total=5852 [2023-12-18 20:26:44,221 INFO L87 Difference]: Start difference. First operand 147 states and 164 transitions. Second operand has 49 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 46 states have internal predecessors, (67), 4 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-12-18 20:26:58,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:27:02,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:27:02,918 INFO L93 Difference]: Finished difference Result 283 states and 327 transitions. [2023-12-18 20:27:02,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-18 20:27:02,919 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 46 states have internal predecessors, (67), 4 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 77 [2023-12-18 20:27:02,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:27:02,923 INFO L225 Difference]: With dead ends: 283 [2023-12-18 20:27:02,923 INFO L226 Difference]: Without dead ends: 227 [2023-12-18 20:27:02,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 37 SyntacticMatches, 5 SemanticMatches, 83 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 2673 ImplicationChecksByTransitivity, 89.1s TimeCoverageRelationStatistics Valid=423, Invalid=6222, Unknown=9, NotChecked=486, Total=7140 [2023-12-18 20:27:02,932 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 110 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 2270 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 2290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2270 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2023-12-18 20:27:02,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 581 Invalid, 2290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2270 Invalid, 1 Unknown, 0 Unchecked, 15.8s Time] [2023-12-18 20:27:02,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-12-18 20:27:03,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 206. [2023-12-18 20:27:03,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 173 states have (on average 1.1213872832369942) internal successors, (194), 173 states have internal predecessors, (194), 18 states have call successors, (18), 13 states have call predecessors, (18), 14 states have return successors, (21), 19 states have call predecessors, (21), 18 states have call successors, (21) [2023-12-18 20:27:03,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 233 transitions. [2023-12-18 20:27:03,022 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 233 transitions. Word has length 77 [2023-12-18 20:27:03,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:27:03,022 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 233 transitions. [2023-12-18 20:27:03,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 46 states have internal predecessors, (67), 4 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-12-18 20:27:03,023 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 233 transitions. [2023-12-18 20:27:03,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-18 20:27:03,023 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:27:03,023 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:27:03,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-18 20:27:03,229 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 [2023-12-18 20:27:03,230 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:27:03,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:27:03,230 INFO L85 PathProgramCache]: Analyzing trace with hash -531432718, now seen corresponding path program 3 times [2023-12-18 20:27:03,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:27:03,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849986599] [2023-12-18 20:27:03,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:27:03,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:27:03,238 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:27:03,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [800097265] [2023-12-18 20:27:03,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-18 20:27:03,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:27:03,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:27:03,239 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) [2023-12-18 20:27:03,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-18 20:27:03,765 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-12-18 20:27:03,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 20:27:03,768 WARN L260 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 178 conjunts are in the unsatisfiable core [2023-12-18 20:27:03,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:27:03,824 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 11 treesize of output 7 [2023-12-18 20:27:03,850 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 21 treesize of output 20 [2023-12-18 20:27:03,876 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-18 20:27:03,876 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 30 treesize of output 32 [2023-12-18 20:27:04,024 INFO L349 Elim1Store]: treesize reduction 52, result has 33.3 percent of original size [2023-12-18 20:27:04,025 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 6 case distinctions, treesize of input 41 treesize of output 46 [2023-12-18 20:27:04,119 INFO L349 Elim1Store]: treesize reduction 80, result has 24.5 percent of original size [2023-12-18 20:27:04,119 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 9 case distinctions, treesize of input 53 treesize of output 61 [2023-12-18 20:27:04,244 INFO L349 Elim1Store]: treesize reduction 155, result has 24.0 percent of original size [2023-12-18 20:27:04,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 68 treesize of output 79 [2023-12-18 20:27:04,555 INFO L349 Elim1Store]: treesize reduction 248, result has 19.7 percent of original size [2023-12-18 20:27:04,555 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 21 case distinctions, treesize of input 82 treesize of output 96 [2023-12-18 20:27:04,766 INFO L349 Elim1Store]: treesize reduction 328, result has 15.7 percent of original size [2023-12-18 20:27:04,767 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 27 case distinctions, treesize of input 99 treesize of output 116 [2023-12-18 20:27:05,172 INFO L349 Elim1Store]: treesize reduction 404, result has 13.1 percent of original size [2023-12-18 20:27:05,172 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 34 case distinctions, treesize of input 115 treesize of output 135 [2023-12-18 20:28:14,395 WARN L293 SmtUtils]: Spent 8.37s on a formula simplification. DAG size of input: 1339 DAG size of output: 127 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-18 20:28:14,395 INFO L349 Elim1Store]: treesize reduction 7110, result has 4.7 percent of original size [2023-12-18 20:28:14,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 28 select indices, 28 select index equivalence classes, 0 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 405 case distinctions, treesize of input 385 treesize of output 449 [2023-12-18 20:28:17,646 INFO L349 Elim1Store]: treesize reduction 96, result has 14.3 percent of original size [2023-12-18 20:28:17,647 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 9 case distinctions, treesize of input 594 treesize of output 521 [2023-12-18 20:28:19,171 INFO L349 Elim1Store]: treesize reduction 1454, result has 7.7 percent of original size [2023-12-18 20:28:19,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 64 case distinctions, treesize of input 209 treesize of output 306 [2023-12-18 20:28:22,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:22,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:22,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:22,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:22,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:22,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:22,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:22,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:22,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:23,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:23,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:23,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:23,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:23,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:23,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:23,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:23,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:23,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:23,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:23,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:23,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:23,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:23,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:28:23,474 INFO L224 Elim1Store]: Index analysis took 840 ms [2023-12-18 20:28:23,756 INFO L349 Elim1Store]: treesize reduction 272, result has 11.7 percent of original size [2023-12-18 20:28:23,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 276 treesize of output 151 [2023-12-18 20:28:46,106 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 22 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 20:28:46,107 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 20:28:55,040 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 380 treesize of output 368 [2023-12-18 20:28:55,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-18 20:28:55,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 351414629 treesize of output 328345957 [2023-12-18 20:29:03,727 WARN L293 SmtUtils]: Spent 8.62s on a formula simplification. DAG size of input: 1301 DAG size of output: 185 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:29:04,296 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 3 proven. 150 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-18 20:29:04,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:29:04,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849986599] [2023-12-18 20:29:04,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:29:04,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800097265] [2023-12-18 20:29:04,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800097265] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 20:29:04,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-18 20:29:04,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 44] total 98 [2023-12-18 20:29:04,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399999671] [2023-12-18 20:29:04,297 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-18 20:29:04,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2023-12-18 20:29:04,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:29:04,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2023-12-18 20:29:04,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1500, Invalid=7990, Unknown=16, NotChecked=0, Total=9506 [2023-12-18 20:29:04,300 INFO L87 Difference]: Start difference. First operand 206 states and 233 transitions. Second operand has 98 states, 96 states have (on average 1.3020833333333333) internal successors, (125), 93 states have internal predecessors, (125), 8 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2023-12-18 20:29:10,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:29:20,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1] [2023-12-18 20:29:35,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1] [2023-12-18 20:29:40,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1] [2023-12-18 20:29:47,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:29:51,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:29:55,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:30:01,359 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse59 (* |c_ULTIMATE.start_main_~row~0#1| 12)) (.cse60 (* |c_ULTIMATE.start_main_~column~0#1| 4))) (let ((.cse10 (select |c_#memory_int#1| |c_ULTIMATE.start_main_~#array~0#1.base|)) (.cse58 (+ .cse59 |c_ULTIMATE.start_main_~#array~0#1.offset| .cse60))) (let ((.cse25 (+ .cse59 8 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse24 (store .cse10 .cse58 0)) (.cse48 (+ .cse59 |c_ULTIMATE.start_main_~#array~0#1.offset| 4 .cse60)) (.cse41 (+ .cse59 20 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse39 (+ .cse59 12 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse45 (+ .cse59 |c_ULTIMATE.start_main_~#array~0#1.offset| 4)) (.cse44 (+ .cse59 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse40 (+ .cse59 16 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse4 (+ |c_ULTIMATE.start_main_~#array~0#1.offset| 4)) (.cse9 (+ 8 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse2 (+ 20 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse8 (+ 12 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse7 (+ 16 |c_ULTIMATE.start_main_~#array~0#1.offset|))) (let ((.cse28 (select .cse10 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse29 (select .cse10 .cse7)) (.cse30 (select .cse10 .cse8)) (.cse31 (select .cse10 .cse2)) (.cse32 (select .cse10 .cse9)) (.cse33 (select .cse10 .cse4)) (.cse27 (select .cse10 .cse58)) (.cse6 (+ 32 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse5 (+ |c_ULTIMATE.start_main_~#array~0#1.offset| 24)) (.cse3 (+ |c_ULTIMATE.start_main_~#array~0#1.offset| 28)) (.cse11 (* 4 |c_ULTIMATE.start_main_~index2~0#1|)) (.cse18 (+ |c_ULTIMATE.start_main_~row~0#1| 2)) (.cse20 (select .cse10 .cse40)) (.cse13 (select .cse10 .cse44)) (.cse14 (select .cse10 .cse45)) (.cse21 (select .cse10 .cse39)) (.cse22 (select .cse10 .cse41)) (.cse38 (store .cse24 .cse48 0)) (.cse15 (select .cse10 .cse25)) (.cse16 (+ |c_ULTIMATE.start_main_~row~0#1| 1)) (.cse17 (not (= 2 |c_ULTIMATE.start_main_~column~0#1|))) (.cse0 (not (= c_~ARR_SIZE~0 3))) (.cse53 (= |c_ULTIMATE.start_main_~sum~0#1| 0))) (and (or (= |c_ULTIMATE.start_main_~index1~0#1| 0) (= 2 |c_ULTIMATE.start_main_~index1~0#1|) .cse0 (= (let ((.cse1 (store .cse10 (+ |c_ULTIMATE.start_main_~#array~0#1.offset| .cse11 (* |c_ULTIMATE.start_main_~index1~0#1| 12)) |c_ULTIMATE.start_main_#t~ite11#1|))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse1 .cse2) (select .cse1 .cse3) (select .cse1 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse1 .cse4) (select .cse1 .cse5) (select .cse1 .cse6) (select .cse1 .cse7) (select .cse1 .cse8) (select .cse1 .cse9))) 0)) (or (forall ((|v_ULTIMATE.start_main_~row~0#1_91| Int)) (or (= (let ((.cse12 (* |v_ULTIMATE.start_main_~row~0#1_91| 12))) (+ (select .cse10 (+ .cse12 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (select .cse10 (+ .cse12 8 |c_ULTIMATE.start_main_~#array~0#1.offset|)) .cse13 .cse14 |c_ULTIMATE.start_main_~sum~0#1| (select .cse10 (+ .cse12 |c_ULTIMATE.start_main_~#array~0#1.offset| 4)) .cse15)) 0) (< 2 |v_ULTIMATE.start_main_~row~0#1_91|) (< |v_ULTIMATE.start_main_~row~0#1_91| .cse16))) .cse0) (or .cse0 (and (not (= |c_outerBoundaryPatternCheck_#in~index| 0)) (not (= |c_outerBoundaryPatternCheck_#in~index| 2)))) (or .cse17 .cse0 (forall ((|v_ULTIMATE.start_main_~row~0#1_91| Int)) (or (< |v_ULTIMATE.start_main_~row~0#1_91| .cse18) (= (let ((.cse19 (* |v_ULTIMATE.start_main_~row~0#1_91| 12))) (+ (select .cse10 (+ .cse19 |c_ULTIMATE.start_main_~#array~0#1.offset|)) .cse20 (select .cse10 (+ .cse19 8 |c_ULTIMATE.start_main_~#array~0#1.offset|)) |c_ULTIMATE.start_main_~sum~0#1| .cse21 (select .cse10 (+ .cse19 |c_ULTIMATE.start_main_~#array~0#1.offset| 4)) .cse22 .cse15)) 0) (< 2 |v_ULTIMATE.start_main_~row~0#1_91|)))) (or (= (let ((.cse23 (store .cse24 .cse25 0))) (+ (select .cse23 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse23 .cse8) |c_ULTIMATE.start_main_~sum~0#1| (select .cse23 .cse4) (select .cse23 .cse2) (select .cse23 .cse7) (select .cse23 .cse9))) 0) .cse0) (or .cse0 (forall ((|v_ULTIMATE.start_main_~row~0#1_91| Int)) (or (= (let ((.cse26 (* |v_ULTIMATE.start_main_~row~0#1_91| 12))) (+ (select .cse10 (+ .cse26 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (select .cse10 (+ .cse26 8 |c_ULTIMATE.start_main_~#array~0#1.offset|)) |c_ULTIMATE.start_main_~sum~0#1| (select .cse10 (+ .cse26 |c_ULTIMATE.start_main_~#array~0#1.offset| 4)) .cse15 .cse27)) 0) (< 2 |v_ULTIMATE.start_main_~row~0#1_91|) (< |v_ULTIMATE.start_main_~row~0#1_91| .cse16))) (< 1 |c_ULTIMATE.start_main_~column~0#1|)) (or (= (+ .cse28 |c_ULTIMATE.start_main_~sum~0#1| .cse29 .cse30 .cse31 .cse32 .cse33) 0) .cse0) (or .cse0 (forall ((|v_ULTIMATE.start_main_~row~0#1_91| Int)) (or (= (let ((.cse34 (* |v_ULTIMATE.start_main_~row~0#1_91| 12))) (+ (select .cse10 (+ .cse34 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (select .cse10 (+ .cse34 8 |c_ULTIMATE.start_main_~#array~0#1.offset|)) |c_ULTIMATE.start_main_~sum~0#1| (select .cse10 (+ .cse34 |c_ULTIMATE.start_main_~#array~0#1.offset| 4)))) 0) (< 2 |v_ULTIMATE.start_main_~row~0#1_91|) (< |v_ULTIMATE.start_main_~row~0#1_91| .cse16)))) (or (forall ((|v_ULTIMATE.start_main_~row~0#1_91| Int)) (or (< |v_ULTIMATE.start_main_~row~0#1_91| .cse18) (= (let ((.cse35 (* |v_ULTIMATE.start_main_~row~0#1_91| 12))) (+ (select .cse10 (+ .cse35 |c_ULTIMATE.start_main_~#array~0#1.offset|)) .cse20 (select .cse10 (+ .cse35 8 |c_ULTIMATE.start_main_~#array~0#1.offset|)) |c_ULTIMATE.start_main_~sum~0#1| .cse21 (select .cse10 (+ .cse35 |c_ULTIMATE.start_main_~#array~0#1.offset| 4)) .cse22)) 0) (< 2 |v_ULTIMATE.start_main_~row~0#1_91|))) .cse0) (or (= (+ (select .cse10 .cse3) (select .cse10 .cse5) .cse28 |c_ULTIMATE.start_main_~sum~0#1| .cse29 .cse30 (select .cse10 .cse6) .cse31 .cse32 .cse33) 0) .cse0) (or (forall ((|v_ULTIMATE.start_main_~row~0#1_91| Int)) (or (< |v_ULTIMATE.start_main_~row~0#1_91| .cse18) (= (let ((.cse36 (* |v_ULTIMATE.start_main_~row~0#1_91| 12))) (+ (select .cse10 (+ .cse36 |c_ULTIMATE.start_main_~#array~0#1.offset|)) .cse20 (select .cse10 (+ .cse36 8 |c_ULTIMATE.start_main_~#array~0#1.offset|)) .cse14 |c_ULTIMATE.start_main_~sum~0#1| .cse21 (select .cse10 (+ .cse36 |c_ULTIMATE.start_main_~#array~0#1.offset| 4)) .cse22 .cse15)) 0) (< 2 |v_ULTIMATE.start_main_~row~0#1_91|))) .cse0 (not (= |c_ULTIMATE.start_main_~column~0#1| 1))) (or .cse0 (< 2 |c_ULTIMATE.start_main_~row~0#1|) (= (+ .cse13 .cse14 |c_ULTIMATE.start_main_~sum~0#1| .cse15) 0)) (or .cse0 (= (let ((.cse37 (store (store (store .cse38 .cse39 0) .cse40 0) .cse41 0))) (+ (select .cse37 .cse7) (select .cse37 .cse9) (select .cse37 .cse8) |c_ULTIMATE.start_main_~sum~0#1| (select .cse37 .cse2) (select .cse37 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse37 .cse4))) 0)) (<= c_~ARR_SIZE~0 32767) (or .cse0 (= (let ((.cse42 (store .cse10 .cse25 0))) (+ (select .cse42 .cse8) (select .cse42 .cse9) (select .cse42 .cse7) |c_ULTIMATE.start_main_~sum~0#1| (select .cse42 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse42 .cse4) (select .cse42 .cse2))) 0)) (or .cse0 (= (let ((.cse43 (store (store (store .cse10 .cse44 0) .cse45 0) .cse25 0))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse43 .cse8) (select .cse43 .cse7) (select .cse43 .cse9) (select .cse43 .cse4) (select .cse43 .cse2) (select .cse43 |c_ULTIMATE.start_main_~#array~0#1.offset|))) 0)) (or (= (let ((.cse46 (store (store (store .cse24 .cse39 0) .cse40 0) .cse41 0))) (+ (select .cse46 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse46 .cse7) (select .cse46 .cse2) (select .cse46 .cse9) |c_ULTIMATE.start_main_~sum~0#1| (select .cse46 .cse8) (select .cse46 .cse4))) 0) .cse0) (or (forall ((|v_ULTIMATE.start_main_~row~0#1_91| Int)) (or (< 2 |v_ULTIMATE.start_main_~row~0#1_91|) (< |v_ULTIMATE.start_main_~row~0#1_91| .cse16) (= (let ((.cse47 (* |v_ULTIMATE.start_main_~row~0#1_91| 12))) (+ (select .cse10 (+ .cse47 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (select .cse10 .cse48) (select .cse10 (+ .cse47 8 |c_ULTIMATE.start_main_~#array~0#1.offset|)) |c_ULTIMATE.start_main_~sum~0#1| (select .cse10 (+ .cse47 |c_ULTIMATE.start_main_~#array~0#1.offset| 4)) .cse15 .cse27)) 0))) .cse0 (< 0 |c_ULTIMATE.start_main_~column~0#1|)) (or (let ((.cse49 (mod (+ (* 4294967295 |c_ULTIMATE.start_main_~index1~0#1|) 2) 4294967296))) (let ((.cse51 (* .cse49 12))) (and (or (< 2147483647 .cse49) (= (let ((.cse50 (store .cse10 (+ .cse51 |c_ULTIMATE.start_main_~#array~0#1.offset| .cse11) |c_ULTIMATE.start_main_#t~ite14#1|))) (+ (select .cse50 .cse2) (select .cse50 .cse9) |c_ULTIMATE.start_main_~sum~0#1| (select .cse50 .cse5) (select .cse50 .cse4) (select .cse50 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse50 .cse3) (select .cse50 .cse7) (select .cse50 .cse6) (select .cse50 .cse8))) 0)) (or (< .cse49 2147483648) (= (let ((.cse52 (store .cse10 (+ (- 51539607552) .cse51 |c_ULTIMATE.start_main_~#array~0#1.offset| .cse11) |c_ULTIMATE.start_main_#t~ite14#1|))) (+ (select .cse52 .cse6) (select .cse52 .cse5) (select .cse52 .cse7) (select .cse52 .cse9) |c_ULTIMATE.start_main_~sum~0#1| (select .cse52 .cse4) (select .cse52 .cse3) (select .cse52 .cse8) (select .cse52 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse52 .cse2))) 0))))) .cse0) (or (and (= |c_ULTIMATE.start_main_~row~0#1| 0) .cse53) .cse0) (or (forall ((|v_ULTIMATE.start_main_~row~0#1_91| Int)) (or (< |v_ULTIMATE.start_main_~row~0#1_91| .cse18) (= (let ((.cse54 (* |v_ULTIMATE.start_main_~row~0#1_91| 12))) (+ (select .cse10 (+ .cse54 |c_ULTIMATE.start_main_~#array~0#1.offset|)) .cse20 (select .cse10 (+ .cse54 8 |c_ULTIMATE.start_main_~#array~0#1.offset|)) .cse13 .cse14 |c_ULTIMATE.start_main_~sum~0#1| .cse21 (select .cse10 (+ .cse54 |c_ULTIMATE.start_main_~#array~0#1.offset| 4)) .cse22 .cse15)) 0) (< 2 |v_ULTIMATE.start_main_~row~0#1_91|))) .cse0) (or .cse0 (= (let ((.cse55 (store .cse38 .cse25 0))) (+ (select .cse55 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse55 .cse9) (select .cse55 .cse7) (select .cse55 .cse2) (select .cse55 .cse8) (select .cse55 .cse4))) 0)) (or (= (let ((.cse56 (store (store (store .cse10 .cse39 0) .cse40 0) .cse41 0))) (+ (select .cse56 .cse2) |c_ULTIMATE.start_main_~sum~0#1| (select .cse56 .cse4) (select .cse56 .cse9) (select .cse56 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse56 .cse8) (select .cse56 .cse7))) 0) .cse0) (or (forall ((|v_ULTIMATE.start_main_~row~0#1_91| Int)) (or (= (let ((.cse57 (* |v_ULTIMATE.start_main_~row~0#1_91| 12))) (+ (select .cse10 (+ .cse57 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (select .cse10 (+ .cse57 8 |c_ULTIMATE.start_main_~#array~0#1.offset|)) |c_ULTIMATE.start_main_~sum~0#1| (select .cse10 (+ .cse57 |c_ULTIMATE.start_main_~#array~0#1.offset| 4)) .cse15)) 0) (< 2 |v_ULTIMATE.start_main_~row~0#1_91|) (< |v_ULTIMATE.start_main_~row~0#1_91| .cse16))) .cse17 .cse0) .cse53))))) is different from true [2023-12-18 20:30:33,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1] [2023-12-18 20:30:37,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1] [2023-12-18 20:30:46,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1] [2023-12-18 20:30:50,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1] [2023-12-18 20:30:59,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1] [2023-12-18 20:31:03,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1] [2023-12-18 20:31:09,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:31:13,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1] [2023-12-18 20:31:17,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1] [2023-12-18 20:31:21,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1] [2023-12-18 20:31:26,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-18 20:31:32,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1] Received shutdown request... [2023-12-18 20:31:42,656 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-18 20:31:42,659 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-18 20:31:43,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-18 20:31:43,857 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-18 20:31:43,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-18 20:31:43,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 52 SyntacticMatches, 4 SemanticMatches, 131 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7143 ImplicationChecksByTransitivity, 155.8s TimeCoverageRelationStatistics Valid=2769, Invalid=14500, Unknown=27, NotChecked=260, Total=17556 [2023-12-18 20:31:43,935 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 137 [2023-12-18 20:31:43,936 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 126 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 300 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 300 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 89 IncrementalHoareTripleChecker+Unchecked, 87.3s IncrementalHoareTripleChecker+Time [2023-12-18 20:31:43,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 151 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [300 Valid, 1263 Invalid, 17 Unknown, 89 Unchecked, 87.3s Time] [2023-12-18 20:31:43,937 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-18 20:31:43,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-18 20:31:43,937 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (206states) and FLOYD_HOARE automaton (currently 45 states, 98 states before enhancement),while executing Executor. [2023-12-18 20:31:43,940 INFO L445 BasicCegarLoop]: Path program histogram: [7, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:31:43,941 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-18 20:31:43,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 08:31:43 BoogieIcfgContainer [2023-12-18 20:31:43,942 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-18 20:31:43,943 INFO L158 Benchmark]: Toolchain (without parser) took 875414.93ms. Allocated memory was 304.1MB in the beginning and 657.5MB in the end (delta: 353.4MB). Free memory was 253.0MB in the beginning and 401.2MB in the end (delta: -148.2MB). Peak memory consumption was 206.7MB. Max. memory is 8.0GB. [2023-12-18 20:31:43,943 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 210.8MB. Free memory is still 158.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-18 20:31:43,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.02ms. Allocated memory is still 304.1MB. Free memory was 252.5MB in the beginning and 240.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-18 20:31:43,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.19ms. Allocated memory is still 304.1MB. Free memory was 240.9MB in the beginning and 239.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-18 20:31:43,943 INFO L158 Benchmark]: Boogie Preprocessor took 54.32ms. Allocated memory is still 304.1MB. Free memory was 239.4MB in the beginning and 237.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-18 20:31:43,943 INFO L158 Benchmark]: RCFGBuilder took 345.79ms. Allocated memory is still 304.1MB. Free memory was 236.7MB in the beginning and 222.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-18 20:31:43,943 INFO L158 Benchmark]: TraceAbstraction took 874734.43ms. Allocated memory was 304.1MB in the beginning and 657.5MB in the end (delta: 353.4MB). Free memory was 221.0MB in the beginning and 401.2MB in the end (delta: -180.2MB). Peak memory consumption was 174.2MB. Max. memory is 8.0GB. [2023-12-18 20:31:43,944 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 210.8MB. Free memory is still 158.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 230.02ms. Allocated memory is still 304.1MB. Free memory was 252.5MB in the beginning and 240.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.19ms. Allocated memory is still 304.1MB. Free memory was 240.9MB in the beginning and 239.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.32ms. Allocated memory is still 304.1MB. Free memory was 239.4MB in the beginning and 237.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 345.79ms. Allocated memory is still 304.1MB. Free memory was 236.7MB in the beginning and 222.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 874734.43ms. Allocated memory was 304.1MB in the beginning and 657.5MB in the end (delta: 353.4MB). Free memory was 221.0MB in the beginning and 401.2MB in the end (delta: -180.2MB). Peak memory consumption was 174.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 33]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 33). Cancelled while NwaCegarLoop was constructing difference of abstraction (206states) and FLOYD_HOARE automaton (currently 45 states, 98 states before enhancement),while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 874.7s, OverallIterations: 19, TraceHistogramMax: 9, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 336.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 mSolverCounterUnknown, 990 SdHoareTripleChecker+Valid, 245.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 960 mSDsluCounter, 3222 SdHoareTripleChecker+Invalid, 244.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 128 IncrementalHoareTripleChecker+Unchecked, 2554 mSDsCounter, 590 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6516 IncrementalHoareTripleChecker+Invalid, 7282 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 590 mSolverCounterUnsat, 668 mSDtfsCounter, 6516 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1804 GetRequests, 1337 SyntacticMatches, 29 SemanticMatches, 437 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12369 ImplicationChecksByTransitivity, 375.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=206occurred in iteration=18, InterpolantAutomatonStates: 222, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 18 MinimizatonAttempts, 186 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 530.4s InterpolantComputationTime, 1102 NumberOfCodeBlocks, 1060 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 1618 ConstructedInterpolants, 126 QuantifiedInterpolants, 65611 SizeOfPredicates, 122 NumberOfNonLiveVariables, 3683 ConjunctsInSsa, 562 ConjunctsInUnsatCore, 28 InterpolantComputations, 8 PerfectInterpolantSequences, 1073/1737 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown