/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-5.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:32:47,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:32:47,555 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 04:32:47,558 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:32:47,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:32:47,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:32:47,571 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:32:47,571 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:32:47,572 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:32:47,572 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:32:47,572 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:32:47,572 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:32:47,573 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:32:47,573 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:32:47,573 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:32:47,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:32:47,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:32:47,574 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:32:47,574 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:32:47,574 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:32:47,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:32:47,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:32:47,575 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:32:47,575 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:32:47,575 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:32:47,575 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:32:47,575 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:32:47,575 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:32:47,576 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:32:47,576 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:32:47,576 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:32:47,576 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:32:47,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:32:47,577 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:32:47,577 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:32:47,577 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:32:47,577 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:32:47,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:32:47,577 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:32:47,578 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:32:47,578 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:32:47,578 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:32:47,578 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:32:47,578 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:32:47,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:32:47,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:32:47,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:32:47,753 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:32:47,754 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:32:47,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-5.i [2023-12-16 04:32:48,782 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:32:48,942 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:32:48,942 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-5.i [2023-12-16 04:32:48,948 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d95965ba/9aa4848535ec4bbab189a18d4dd6f336/FLAGd7309fb58 [2023-12-16 04:32:48,959 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d95965ba/9aa4848535ec4bbab189a18d4dd6f336 [2023-12-16 04:32:48,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:32:48,962 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:32:48,963 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:32:48,963 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:32:48,966 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:32:48,967 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:32:48" (1/1) ... [2023-12-16 04:32:48,967 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60d4a395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:48, skipping insertion in model container [2023-12-16 04:32:48,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:32:48" (1/1) ... [2023-12-16 04:32:48,999 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:32:49,105 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-5.i[916,929] [2023-12-16 04:32:49,146 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:32:49,154 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:32:49,161 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-5.i[916,929] [2023-12-16 04:32:49,187 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:32:49,205 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:32:49,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:49 WrapperNode [2023-12-16 04:32:49,206 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:32:49,207 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:32:49,207 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:32:49,212 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:32:49,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:49" (1/1) ... [2023-12-16 04:32:49,226 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:49" (1/1) ... [2023-12-16 04:32:49,257 INFO L138 Inliner]: procedures = 26, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 425 [2023-12-16 04:32:49,258 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:32:49,258 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:32:49,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:32:49,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:32:49,270 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:49" (1/1) ... [2023-12-16 04:32:49,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:49" (1/1) ... [2023-12-16 04:32:49,274 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:49" (1/1) ... [2023-12-16 04:32:49,296 INFO L175 MemorySlicer]: Split 122 memory accesses to 2 slices as follows [2, 120]. 98 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 15]. The 17 writes are split as follows [0, 17]. [2023-12-16 04:32:49,296 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:49" (1/1) ... [2023-12-16 04:32:49,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:49" (1/1) ... [2023-12-16 04:32:49,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:49" (1/1) ... [2023-12-16 04:32:49,322 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:49" (1/1) ... [2023-12-16 04:32:49,325 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:49" (1/1) ... [2023-12-16 04:32:49,327 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:49" (1/1) ... [2023-12-16 04:32:49,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:32:49,346 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:32:49,346 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:32:49,346 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:32:49,346 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:49" (1/1) ... [2023-12-16 04:32:49,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:32:49,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:32:49,380 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) [2023-12-16 04:32:49,393 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 [2023-12-16 04:32:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:32:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-16 04:32:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-16 04:32:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-16 04:32:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-16 04:32:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 04:32:49,410 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 04:32:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:32:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 04:32:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:32:49,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:32:49,531 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:32:49,533 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:32:49,976 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:32:50,018 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:32:50,018 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 04:32:50,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:32:50 BoogieIcfgContainer [2023-12-16 04:32:50,019 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:32:50,021 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:32:50,021 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:32:50,023 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:32:50,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:32:48" (1/3) ... [2023-12-16 04:32:50,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21dd2305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:32:50, skipping insertion in model container [2023-12-16 04:32:50,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:49" (2/3) ... [2023-12-16 04:32:50,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21dd2305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:32:50, skipping insertion in model container [2023-12-16 04:32:50,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:32:50" (3/3) ... [2023-12-16 04:32:50,025 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-5.i [2023-12-16 04:32:50,037 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:32:50,039 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:32:50,085 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:32:50,097 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;@61b3ad18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:32:50,097 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:32:50,102 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 66 states have internal predecessors, (89), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:32:50,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:32:50,116 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:32:50,117 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:32:50,117 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:32:50,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:32:50,124 INFO L85 PathProgramCache]: Analyzing trace with hash 442992752, now seen corresponding path program 1 times [2023-12-16 04:32:50,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:32:50,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330408188] [2023-12-16 04:32:50,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:50,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:32:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:50,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:32:50,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330408188] [2023-12-16 04:32:50,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 04:32:50,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978098118] [2023-12-16 04:32:50,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:50,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:32:50,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:32:50,337 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) [2023-12-16 04:32:50,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 04:32:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:50,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 04:32:50,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:32:50,573 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-12-16 04:32:50,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:32:50,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978098118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:32:50,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:32:50,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:32:50,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851051337] [2023-12-16 04:32:50,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:32:50,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 04:32:50,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:32:50,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 04:32:50,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:32:50,598 INFO L87 Difference]: Start difference. First operand has 88 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 66 states have internal predecessors, (89), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:32:50,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:32:50,627 INFO L93 Difference]: Finished difference Result 173 states and 276 transitions. [2023-12-16 04:32:50,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 04:32:50,629 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 142 [2023-12-16 04:32:50,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:32:50,634 INFO L225 Difference]: With dead ends: 173 [2023-12-16 04:32:50,634 INFO L226 Difference]: Without dead ends: 86 [2023-12-16 04:32:50,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:32:50,638 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:32:50,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:32:50,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-16 04:32:50,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-12-16 04:32:50,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 64 states have internal predecessors, (84), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:32:50,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 124 transitions. [2023-12-16 04:32:50,674 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 124 transitions. Word has length 142 [2023-12-16 04:32:50,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:32:50,674 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 124 transitions. [2023-12-16 04:32:50,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:32:50,675 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 124 transitions. [2023-12-16 04:32:50,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:32:50,681 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:32:50,681 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:32:50,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 04:32:50,883 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 [2023-12-16 04:32:50,884 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:32:50,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:32:50,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1415186504, now seen corresponding path program 1 times [2023-12-16 04:32:50,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:32:50,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893395079] [2023-12-16 04:32:50,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:50,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:32:50,956 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:32:50,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1054390261] [2023-12-16 04:32:50,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:50,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:32:50,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:32:50,968 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) [2023-12-16 04:32:50,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 04:32:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:51,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:32:51,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:32:51,174 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:32:51,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:32:51,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:32:51,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893395079] [2023-12-16 04:32:51,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:32:51,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054390261] [2023-12-16 04:32:51,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054390261] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:32:51,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:32:51,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:32:51,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132086702] [2023-12-16 04:32:51,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:32:51,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:32:51,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:32:51,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:32:51,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:32:51,179 INFO L87 Difference]: Start difference. First operand 86 states and 124 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:32:51,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:32:51,267 INFO L93 Difference]: Finished difference Result 183 states and 264 transitions. [2023-12-16 04:32:51,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:32:51,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 142 [2023-12-16 04:32:51,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:32:51,269 INFO L225 Difference]: With dead ends: 183 [2023-12-16 04:32:51,269 INFO L226 Difference]: Without dead ends: 98 [2023-12-16 04:32:51,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:32:51,270 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 21 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:32:51,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 350 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:32:51,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-12-16 04:32:51,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 88. [2023-12-16 04:32:51,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 66 states have (on average 1.303030303030303) internal successors, (86), 66 states have internal predecessors, (86), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:32:51,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 126 transitions. [2023-12-16 04:32:51,279 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 126 transitions. Word has length 142 [2023-12-16 04:32:51,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:32:51,280 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 126 transitions. [2023-12-16 04:32:51,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:32:51,280 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 126 transitions. [2023-12-16 04:32:51,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:32:51,282 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:32:51,282 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:32:51,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 04:32:51,487 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 [2023-12-16 04:32:51,488 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:32:51,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:32:51,488 INFO L85 PathProgramCache]: Analyzing trace with hash 605839878, now seen corresponding path program 1 times [2023-12-16 04:32:51,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:32:51,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64861801] [2023-12-16 04:32:51,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:51,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:32:51,551 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:32:51,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1719363347] [2023-12-16 04:32:51,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:51,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:32:51,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:32:51,552 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) [2023-12-16 04:32:51,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 04:32:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:51,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:32:51,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:32:51,702 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:32:51,702 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:32:51,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:32:51,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64861801] [2023-12-16 04:32:51,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:32:51,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719363347] [2023-12-16 04:32:51,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719363347] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:32:51,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:32:51,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:32:51,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745749004] [2023-12-16 04:32:51,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:32:51,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:32:51,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:32:51,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:32:51,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:32:51,704 INFO L87 Difference]: Start difference. First operand 88 states and 126 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:32:51,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:32:51,734 INFO L93 Difference]: Finished difference Result 183 states and 262 transitions. [2023-12-16 04:32:51,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:32:51,734 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 142 [2023-12-16 04:32:51,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:32:51,736 INFO L225 Difference]: With dead ends: 183 [2023-12-16 04:32:51,736 INFO L226 Difference]: Without dead ends: 96 [2023-12-16 04:32:51,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:32:51,737 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 12 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:32:51,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 348 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:32:51,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-16 04:32:51,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 90. [2023-12-16 04:32:51,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 68 states have internal predecessors, (88), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:32:51,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 128 transitions. [2023-12-16 04:32:51,749 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 128 transitions. Word has length 142 [2023-12-16 04:32:51,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:32:51,752 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 128 transitions. [2023-12-16 04:32:51,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:32:51,753 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 128 transitions. [2023-12-16 04:32:51,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:32:51,757 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:32:51,757 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:32:51,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 04:32:51,964 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 [2023-12-16 04:32:51,964 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:32:51,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:32:51,965 INFO L85 PathProgramCache]: Analyzing trace with hash 663098180, now seen corresponding path program 1 times [2023-12-16 04:32:51,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:32:51,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366447008] [2023-12-16 04:32:51,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:51,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:32:52,016 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:32:52,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [225608267] [2023-12-16 04:32:52,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:52,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:32:52,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:32:52,023 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) [2023-12-16 04:32:52,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 04:32:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:52,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:32:52,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:32:52,188 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:32:52,188 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:32:52,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:32:52,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366447008] [2023-12-16 04:32:52,188 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:32:52,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225608267] [2023-12-16 04:32:52,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225608267] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:32:52,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:32:52,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:32:52,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347459695] [2023-12-16 04:32:52,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:32:52,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:32:52,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:32:52,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:32:52,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:32:52,192 INFO L87 Difference]: Start difference. First operand 90 states and 128 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:32:52,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:32:52,228 INFO L93 Difference]: Finished difference Result 183 states and 260 transitions. [2023-12-16 04:32:52,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:32:52,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 142 [2023-12-16 04:32:52,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:32:52,233 INFO L225 Difference]: With dead ends: 183 [2023-12-16 04:32:52,233 INFO L226 Difference]: Without dead ends: 94 [2023-12-16 04:32:52,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:32:52,239 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 3 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:32:52,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 348 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:32:52,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-16 04:32:52,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2023-12-16 04:32:52,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 70 states have internal predecessors, (90), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:32:52,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 130 transitions. [2023-12-16 04:32:52,251 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 130 transitions. Word has length 142 [2023-12-16 04:32:52,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:32:52,252 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 130 transitions. [2023-12-16 04:32:52,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:32:52,252 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 130 transitions. [2023-12-16 04:32:52,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:32:52,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:32:52,253 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:32:52,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 04:32:52,466 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 [2023-12-16 04:32:52,467 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:32:52,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:32:52,467 INFO L85 PathProgramCache]: Analyzing trace with hash 663157762, now seen corresponding path program 1 times [2023-12-16 04:32:52,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:32:52,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400062963] [2023-12-16 04:32:52,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:52,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:32:52,501 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:32:52,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1262347161] [2023-12-16 04:32:52,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:52,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:32:52,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:32:52,504 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) [2023-12-16 04:32:52,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 04:32:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:52,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:32:52,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:32:52,660 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:32:52,660 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:32:52,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:32:52,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400062963] [2023-12-16 04:32:52,661 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:32:52,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262347161] [2023-12-16 04:32:52,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262347161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:32:52,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:32:52,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:32:52,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295499043] [2023-12-16 04:32:52,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:32:52,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:32:52,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:32:52,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:32:52,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:32:52,662 INFO L87 Difference]: Start difference. First operand 92 states and 130 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:32:52,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:32:52,688 INFO L93 Difference]: Finished difference Result 210 states and 296 transitions. [2023-12-16 04:32:52,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:32:52,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 142 [2023-12-16 04:32:52,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:32:52,690 INFO L225 Difference]: With dead ends: 210 [2023-12-16 04:32:52,690 INFO L226 Difference]: Without dead ends: 119 [2023-12-16 04:32:52,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:32:52,691 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 46 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:32:52,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 339 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:32:52,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-12-16 04:32:52,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 94. [2023-12-16 04:32:52,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 72 states have internal predecessors, (92), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:32:52,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2023-12-16 04:32:52,696 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 142 [2023-12-16 04:32:52,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:32:52,696 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2023-12-16 04:32:52,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:32:52,697 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2023-12-16 04:32:52,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-16 04:32:52,697 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:32:52,698 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:32:52,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 04:32:52,903 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 [2023-12-16 04:32:52,903 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:32:52,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:32:52,903 INFO L85 PathProgramCache]: Analyzing trace with hash -2107772745, now seen corresponding path program 1 times [2023-12-16 04:32:52,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:32:52,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469076978] [2023-12-16 04:32:52,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:52,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:32:52,941 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:32:52,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [328694585] [2023-12-16 04:32:52,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:52,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:32:52,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:32:52,942 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) [2023-12-16 04:32:52,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 04:32:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:53,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 04:32:53,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:32:53,098 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:32:53,098 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:32:53,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:32:53,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469076978] [2023-12-16 04:32:53,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:32:53,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328694585] [2023-12-16 04:32:53,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328694585] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:32:53,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:32:53,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:32:53,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080492944] [2023-12-16 04:32:53,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:32:53,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:32:53,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:32:53,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:32:53,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:32:53,100 INFO L87 Difference]: Start difference. First operand 94 states and 132 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:32:53,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:32:53,135 INFO L93 Difference]: Finished difference Result 205 states and 287 transitions. [2023-12-16 04:32:53,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:32:53,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2023-12-16 04:32:53,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:32:53,137 INFO L225 Difference]: With dead ends: 205 [2023-12-16 04:32:53,137 INFO L226 Difference]: Without dead ends: 112 [2023-12-16 04:32:53,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:32:53,137 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 54 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:32:53,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 457 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:32:53,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-12-16 04:32:53,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 97. [2023-12-16 04:32:53,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.2666666666666666) internal successors, (95), 75 states have internal predecessors, (95), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:32:53,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 135 transitions. [2023-12-16 04:32:53,142 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 135 transitions. Word has length 144 [2023-12-16 04:32:53,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:32:53,143 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 135 transitions. [2023-12-16 04:32:53,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:32:53,143 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 135 transitions. [2023-12-16 04:32:53,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-16 04:32:53,144 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:32:53,144 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:32:53,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 04:32:53,351 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 [2023-12-16 04:32:53,352 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:32:53,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:32:53,352 INFO L85 PathProgramCache]: Analyzing trace with hash 678562343, now seen corresponding path program 1 times [2023-12-16 04:32:53,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:32:53,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376422861] [2023-12-16 04:32:53,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:53,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:32:53,376 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:32:53,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [676892034] [2023-12-16 04:32:53,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:53,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:32:53,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:32:53,378 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) [2023-12-16 04:32:53,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-16 04:32:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:53,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 04:32:53,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:32:53,552 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 15 treesize of output 7 [2023-12-16 04:32:53,560 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:32:53,560 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:32:53,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:32:53,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376422861] [2023-12-16 04:32:53,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:32:53,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676892034] [2023-12-16 04:32:53,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676892034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:32:53,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:32:53,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:32:53,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014933382] [2023-12-16 04:32:53,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:32:53,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:32:53,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:32:53,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:32:53,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:32:53,563 INFO L87 Difference]: Start difference. First operand 97 states and 135 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:32:53,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:32:53,585 INFO L93 Difference]: Finished difference Result 193 states and 269 transitions. [2023-12-16 04:32:53,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:32:53,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2023-12-16 04:32:53,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:32:53,587 INFO L225 Difference]: With dead ends: 193 [2023-12-16 04:32:53,587 INFO L226 Difference]: Without dead ends: 97 [2023-12-16 04:32:53,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:32:53,588 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 233 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 [2023-12-16 04:32:53,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 233 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:32:53,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-12-16 04:32:53,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-12-16 04:32:53,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.2533333333333334) internal successors, (94), 75 states have internal predecessors, (94), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:32:53,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 134 transitions. [2023-12-16 04:32:53,605 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 134 transitions. Word has length 144 [2023-12-16 04:32:53,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:32:53,605 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 134 transitions. [2023-12-16 04:32:53,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:32:53,605 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 134 transitions. [2023-12-16 04:32:53,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-16 04:32:53,606 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:32:53,606 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:32:53,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-16 04:32:53,814 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 [2023-12-16 04:32:53,817 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:32:53,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:32:53,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1070626676, now seen corresponding path program 1 times [2023-12-16 04:32:53,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:32:53,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643882885] [2023-12-16 04:32:53,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:53,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:32:53,837 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:32:53,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [390224081] [2023-12-16 04:32:53,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:53,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:32:53,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:32:53,840 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) [2023-12-16 04:32:53,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-16 04:32:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:53,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 04:32:53,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:32:53,999 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 15 treesize of output 7 [2023-12-16 04:32:54,004 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:32:54,004 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:32:54,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:32:54,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643882885] [2023-12-16 04:32:54,005 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:32:54,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390224081] [2023-12-16 04:32:54,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390224081] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:32:54,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:32:54,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:32:54,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985667762] [2023-12-16 04:32:54,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:32:54,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:32:54,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:32:54,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:32:54,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:32:54,006 INFO L87 Difference]: Start difference. First operand 97 states and 134 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:32:54,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:32:54,019 INFO L93 Difference]: Finished difference Result 193 states and 267 transitions. [2023-12-16 04:32:54,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:32:54,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2023-12-16 04:32:54,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:32:54,021 INFO L225 Difference]: With dead ends: 193 [2023-12-16 04:32:54,021 INFO L226 Difference]: Without dead ends: 97 [2023-12-16 04:32:54,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:32:54,021 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 1 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 230 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 [2023-12-16 04:32:54,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 230 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:32:54,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-12-16 04:32:54,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-12-16 04:32:54,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.24) internal successors, (93), 75 states have internal predecessors, (93), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:32:54,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 133 transitions. [2023-12-16 04:32:54,025 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 133 transitions. Word has length 146 [2023-12-16 04:32:54,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:32:54,025 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 133 transitions. [2023-12-16 04:32:54,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:32:54,025 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 133 transitions. [2023-12-16 04:32:54,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-16 04:32:54,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:32:54,026 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:32:54,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-16 04:32:54,231 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 [2023-12-16 04:32:54,231 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:32:54,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:32:54,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1535396878, now seen corresponding path program 1 times [2023-12-16 04:32:54,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:32:54,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692430419] [2023-12-16 04:32:54,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:54,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:32:54,259 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:32:54,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [141869705] [2023-12-16 04:32:54,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:54,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:32:54,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:32:54,260 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) [2023-12-16 04:32:54,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-16 04:32:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:54,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 04:32:54,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:32:54,429 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 15 treesize of output 7 [2023-12-16 04:32:54,433 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:32:54,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:32:54,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:32:54,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692430419] [2023-12-16 04:32:54,433 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:32:54,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141869705] [2023-12-16 04:32:54,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141869705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:32:54,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:32:54,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:32:54,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457292760] [2023-12-16 04:32:54,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:32:54,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:32:54,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:32:54,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:32:54,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:32:54,435 INFO L87 Difference]: Start difference. First operand 97 states and 133 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:32:54,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:32:54,453 INFO L93 Difference]: Finished difference Result 221 states and 302 transitions. [2023-12-16 04:32:54,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:32:54,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2023-12-16 04:32:54,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:32:54,454 INFO L225 Difference]: With dead ends: 221 [2023-12-16 04:32:54,454 INFO L226 Difference]: Without dead ends: 125 [2023-12-16 04:32:54,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:32:54,456 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 32 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:32:54,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 249 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:32:54,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-12-16 04:32:54,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 97. [2023-12-16 04:32:54,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 75 states have internal predecessors, (92), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:32:54,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 132 transitions. [2023-12-16 04:32:54,461 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 132 transitions. Word has length 146 [2023-12-16 04:32:54,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:32:54,463 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 132 transitions. [2023-12-16 04:32:54,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:32:54,463 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 132 transitions. [2023-12-16 04:32:54,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-16 04:32:54,465 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:32:54,465 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:32:54,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-16 04:32:54,670 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 [2023-12-16 04:32:54,670 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:32:54,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:32:54,671 INFO L85 PathProgramCache]: Analyzing trace with hash 255533200, now seen corresponding path program 1 times [2023-12-16 04:32:54,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:32:54,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701693501] [2023-12-16 04:32:54,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:54,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:32:54,697 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:32:54,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [449235602] [2023-12-16 04:32:54,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:54,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:32:54,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:32:54,698 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) [2023-12-16 04:32:54,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-16 04:32:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:54,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 49 conjunts are in the unsatisfiable core [2023-12-16 04:32:54,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:32:56,693 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 [2023-12-16 04:32:56,736 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 44 [2023-12-16 04:32:56,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:56,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:56,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:57,281 INFO L349 Elim1Store]: treesize reduction 761, result has 16.6 percent of original size [2023-12-16 04:32:57,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 444 treesize of output 621 [2023-12-16 04:33:32,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:32,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:32,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:33,065 INFO L349 Elim1Store]: treesize reduction 154, result has 32.8 percent of original size [2023-12-16 04:33:33,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 17700 treesize of output 16746 [2023-12-16 04:33:35,731 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:35,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:35,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:35,736 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:35,741 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-16 04:33:35,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 28 [2023-12-16 04:33:35,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:35,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:35,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:35,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:35,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:35,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:35,768 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:35,774 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-16 04:33:35,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 37 [2023-12-16 04:33:35,806 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:35,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:35,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:35,827 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-12-16 04:33:35,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 103 [2023-12-16 04:33:35,894 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:35,894 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:35,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:35,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 57 [2023-12-16 04:33:36,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:36,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:36,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:36,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:36,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:36,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:36,159 INFO L349 Elim1Store]: treesize reduction 126, result has 22.7 percent of original size [2023-12-16 04:33:36,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 280 treesize of output 291 [2023-12-16 04:33:38,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:38,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:38,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:38,588 INFO L349 Elim1Store]: treesize reduction 159, result has 30.6 percent of original size [2023-12-16 04:33:38,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 19517 treesize of output 18394 [2023-12-16 04:33:41,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:41,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:41,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:41,703 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:41,704 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:41,704 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:41,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:41,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 23 [2023-12-16 04:33:41,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:41,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:41,722 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:41,723 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:41,723 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:41,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:41,735 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-12-16 04:33:41,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 70 [2023-12-16 04:33:41,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:41,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:41,768 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:41,769 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:41,769 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:41,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:41,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 23 [2023-12-16 04:33:41,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:41,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:41,790 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:41,792 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:41,794 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:41,795 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-16 04:33:41,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:41,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 50 [2023-12-16 04:33:42,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:42,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:42,090 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-12-16 04:33:42,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 31 [2023-12-16 04:33:42,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:42,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:42,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:43,748 INFO L349 Elim1Store]: treesize reduction 1096, result has 14.7 percent of original size [2023-12-16 04:33:43,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 4 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 87 case distinctions, treesize of input 24205 treesize of output 23538 Received shutdown request... [2023-12-16 04:33:57,397 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:33:57,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-16 04:33:57,432 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 [2023-12-16 04:33:57,436 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 04:33:57,604 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 [2023-12-16 04:33:57,605 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 147 with TraceHistMax 20,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-28-6-3-4-1 context. [2023-12-16 04:33:57,608 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:33:57,610 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:33:57,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:33:57 BoogieIcfgContainer [2023-12-16 04:33:57,611 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:33:57,611 INFO L158 Benchmark]: Toolchain (without parser) took 68649.85ms. Allocated memory was 197.1MB in the beginning and 912.3MB in the end (delta: 715.1MB). Free memory was 156.9MB in the beginning and 788.9MB in the end (delta: -632.0MB). Peak memory consumption was 555.4MB. Max. memory is 8.0GB. [2023-12-16 04:33:57,612 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 197.1MB. Free memory is still 144.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:33:57,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.52ms. Allocated memory is still 197.1MB. Free memory was 156.5MB in the beginning and 140.7MB in the end (delta: 15.8MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 04:33:57,612 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.16ms. Allocated memory is still 197.1MB. Free memory was 140.7MB in the beginning and 136.3MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 04:33:57,612 INFO L158 Benchmark]: Boogie Preprocessor took 86.92ms. Allocated memory is still 197.1MB. Free memory was 136.3MB in the beginning and 131.7MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 04:33:57,612 INFO L158 Benchmark]: RCFGBuilder took 673.76ms. Allocated memory was 197.1MB in the beginning and 247.5MB in the end (delta: 50.3MB). Free memory was 131.7MB in the beginning and 206.3MB in the end (delta: -74.6MB). Peak memory consumption was 33.3MB. Max. memory is 8.0GB. [2023-12-16 04:33:57,613 INFO L158 Benchmark]: TraceAbstraction took 67589.97ms. Allocated memory was 247.5MB in the beginning and 912.3MB in the end (delta: 664.8MB). Free memory was 205.8MB in the beginning and 788.9MB in the end (delta: -583.2MB). Peak memory consumption was 553.6MB. Max. memory is 8.0GB. [2023-12-16 04:33:57,613 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 197.1MB. Free memory is still 144.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 243.52ms. Allocated memory is still 197.1MB. Free memory was 156.5MB in the beginning and 140.7MB in the end (delta: 15.8MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.16ms. Allocated memory is still 197.1MB. Free memory was 140.7MB in the beginning and 136.3MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 86.92ms. Allocated memory is still 197.1MB. Free memory was 136.3MB in the beginning and 131.7MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 673.76ms. Allocated memory was 197.1MB in the beginning and 247.5MB in the end (delta: 50.3MB). Free memory was 131.7MB in the beginning and 206.3MB in the end (delta: -74.6MB). Peak memory consumption was 33.3MB. Max. memory is 8.0GB. * TraceAbstraction took 67589.97ms. Allocated memory was 247.5MB in the beginning and 912.3MB in the end (delta: 664.8MB). Free memory was 205.8MB in the beginning and 788.9MB in the end (delta: -583.2MB). Peak memory consumption was 553.6MB. 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: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 147 with TraceHistMax 20,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-28-6-3-4-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.5s, OverallIterations: 10, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 169 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 169 mSDsluCounter, 2673 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1596 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 175 IncrementalHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 1077 mSDtfsCounter, 175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1287 GetRequests, 1267 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=6, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 86 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 1432 NumberOfCodeBlocks, 1432 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1281 ConstructedInterpolants, 0 QuantifiedInterpolants, 1301 SizeOfPredicates, 20 NumberOfNonLiveVariables, 4248 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 6840/6840 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