/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-10.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 10:02:46,237 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 10:02:46,314 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 10:02:46,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 10:02:46,317 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 10:02:46,339 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 10:02:46,340 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 10:02:46,340 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 10:02:46,341 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 10:02:46,344 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 10:02:46,344 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 10:02:46,344 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 10:02:46,344 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 10:02:46,345 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 10:02:46,346 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 10:02:46,346 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 10:02:46,346 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 10:02:46,346 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 10:02:46,346 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 10:02:46,346 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 10:02:46,347 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 10:02:46,347 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 10:02:46,347 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 10:02:46,347 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 10:02:46,347 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 10:02:46,348 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 10:02:46,348 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 10:02:46,348 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 10:02:46,348 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 10:02:46,349 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 10:02:46,349 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 10:02:46,349 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 10:02:46,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 10:02:46,350 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 10:02:46,350 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 10:02:46,350 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 10:02:46,350 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 10:02:46,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 10:02:46,350 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 10:02:46,350 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 10:02:46,350 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 10:02:46,351 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 10:02:46,351 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 10:02:46,351 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 10:02:46,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 10:02:46,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 10:02:46,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 10:02:46,591 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 10:02:46,591 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 10:02:46,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-10.i [2023-12-19 10:02:47,992 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 10:02:48,195 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 10:02:48,196 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-10.i [2023-12-19 10:02:48,206 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda90b1c5/064e5845563f47f88f4a69b5b9da8b6a/FLAG7da2cc698 [2023-12-19 10:02:48,220 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda90b1c5/064e5845563f47f88f4a69b5b9da8b6a [2023-12-19 10:02:48,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 10:02:48,224 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 10:02:48,226 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 10:02:48,226 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 10:02:48,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 10:02:48,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:02:48" (1/1) ... [2023-12-19 10:02:48,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c993990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:02:48, skipping insertion in model container [2023-12-19 10:02:48,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:02:48" (1/1) ... [2023-12-19 10:02:48,267 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 10:02:48,381 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_fillercode_fillercodestructure_filler-ps-co_file-10.i[919,932] [2023-12-19 10:02:48,453 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 10:02:48,470 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 10:02:48,497 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_fillercode_fillercodestructure_filler-ps-co_file-10.i[919,932] [2023-12-19 10:02:48,569 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 10:02:48,614 INFO L206 MainTranslator]: Completed translation [2023-12-19 10:02:48,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:02:48 WrapperNode [2023-12-19 10:02:48,615 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 10:02:48,616 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 10:02:48,616 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 10:02:48,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 10:02:48,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:02:48" (1/1) ... [2023-12-19 10:02:48,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:02:48" (1/1) ... [2023-12-19 10:02:48,748 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 318 [2023-12-19 10:02:48,749 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 10:02:48,750 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 10:02:48,750 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 10:02:48,754 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 10:02:48,776 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:02:48" (1/1) ... [2023-12-19 10:02:48,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:02:48" (1/1) ... [2023-12-19 10:02:48,792 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:02:48" (1/1) ... [2023-12-19 10:02:48,858 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-19 10:02:48,859 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:02:48" (1/1) ... [2023-12-19 10:02:48,859 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:02:48" (1/1) ... [2023-12-19 10:02:48,891 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:02:48" (1/1) ... [2023-12-19 10:02:48,895 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:02:48" (1/1) ... [2023-12-19 10:02:48,911 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:02:48" (1/1) ... [2023-12-19 10:02:48,914 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:02:48" (1/1) ... [2023-12-19 10:02:48,937 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 10:02:48,938 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 10:02:48,938 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 10:02:48,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 10:02:48,939 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:02:48" (1/1) ... [2023-12-19 10:02:48,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 10:02:48,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:02:48,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 10:02:48,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 10:02:49,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 10:02:49,014 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 10:02:49,015 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 10:02:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 10:02:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 10:02:49,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 10:02:49,076 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 10:02:49,077 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 10:02:49,787 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 10:02:49,822 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 10:02:49,823 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 10:02:49,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:02:49 BoogieIcfgContainer [2023-12-19 10:02:49,823 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 10:02:49,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 10:02:49,825 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 10:02:49,828 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 10:02:49,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 10:02:48" (1/3) ... [2023-12-19 10:02:49,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e71f0c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:02:49, skipping insertion in model container [2023-12-19 10:02:49,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:02:48" (2/3) ... [2023-12-19 10:02:49,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e71f0c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:02:49, skipping insertion in model container [2023-12-19 10:02:49,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:02:49" (3/3) ... [2023-12-19 10:02:49,830 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-10.i [2023-12-19 10:02:49,842 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 10:02:49,842 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 10:02:49,894 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 10:02:49,901 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;@77bf7bc1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 10:02:49,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 10:02:49,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-19 10:02:49,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-19 10:02:49,941 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:02:49,943 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:02:49,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:02:49,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:02:49,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1365754540, now seen corresponding path program 1 times [2023-12-19 10:02:49,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:02:49,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426227459] [2023-12-19 10:02:49,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:02:49,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:02:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:02:50,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:02:50,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426227459] [2023-12-19 10:02:50,322 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 10:02:50,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45647649] [2023-12-19 10:02:50,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:02:50,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:02:50,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:02:50,337 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) [2023-12-19 10:02:50,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 10:02:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:02:50,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 10:02:50,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:02:50,666 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 3362 trivial. 0 not checked. [2023-12-19 10:02:50,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:02:50,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45647649] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:02:50,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:02:50,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 10:02:50,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141676784] [2023-12-19 10:02:50,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:02:50,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 10:02:50,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:02:50,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 10:02:50,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 10:02:50,708 INFO L87 Difference]: Start difference. First operand has 125 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-19 10:02:50,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:02:50,746 INFO L93 Difference]: Finished difference Result 247 states and 448 transitions. [2023-12-19 10:02:50,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 10:02:50,748 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) Word has length 259 [2023-12-19 10:02:50,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:02:50,754 INFO L225 Difference]: With dead ends: 247 [2023-12-19 10:02:50,754 INFO L226 Difference]: Without dead ends: 123 [2023-12-19 10:02:50,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 10:02:50,759 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 10:02:50,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 10:02:50,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-12-19 10:02:50,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2023-12-19 10:02:50,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 79 states have (on average 1.4556962025316456) internal successors, (115), 79 states have internal predecessors, (115), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-19 10:02:50,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 199 transitions. [2023-12-19 10:02:50,801 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 199 transitions. Word has length 259 [2023-12-19 10:02:50,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:02:50,801 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 199 transitions. [2023-12-19 10:02:50,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-19 10:02:50,802 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 199 transitions. [2023-12-19 10:02:50,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-19 10:02:50,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:02:50,806 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:02:50,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 10:02:51,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-19 10:02:51,011 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:02:51,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:02:51,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1300833268, now seen corresponding path program 1 times [2023-12-19 10:02:51,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:02:51,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903647578] [2023-12-19 10:02:51,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:02:51,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:02:51,097 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:02:51,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [286213060] [2023-12-19 10:02:51,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:02:51,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:02:51,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:02:51,107 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) [2023-12-19 10:02:51,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 10:02:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:02:51,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 10:02:51,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:02:51,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-12-19 10:02:51,639 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:02:51,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:02:51,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903647578] [2023-12-19 10:02:51,639 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:02:51,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286213060] [2023-12-19 10:02:51,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286213060] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:02:51,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:02:51,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 10:02:51,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887359567] [2023-12-19 10:02:51,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:02:51,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 10:02:51,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:02:51,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 10:02:51,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 10:02:51,646 INFO L87 Difference]: Start difference. First operand 123 states and 199 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-19 10:02:51,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:02:51,741 INFO L93 Difference]: Finished difference Result 341 states and 555 transitions. [2023-12-19 10:02:51,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 10:02:51,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 259 [2023-12-19 10:02:51,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:02:51,746 INFO L225 Difference]: With dead ends: 341 [2023-12-19 10:02:51,746 INFO L226 Difference]: Without dead ends: 219 [2023-12-19 10:02:51,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 10:02:51,748 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 42 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 10:02:51,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 377 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 10:02:51,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-19 10:02:51,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 203. [2023-12-19 10:02:51,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 116 states have (on average 1.3620689655172413) internal successors, (158), 116 states have internal predecessors, (158), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-19 10:02:51,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 326 transitions. [2023-12-19 10:02:51,806 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 326 transitions. Word has length 259 [2023-12-19 10:02:51,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:02:51,807 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 326 transitions. [2023-12-19 10:02:51,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-19 10:02:51,808 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 326 transitions. [2023-12-19 10:02:51,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-19 10:02:51,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:02:51,818 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:02:51,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 10:02:52,029 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 [2023-12-19 10:02:52,030 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:02:52,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:02:52,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1407550412, now seen corresponding path program 1 times [2023-12-19 10:02:52,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:02:52,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010000609] [2023-12-19 10:02:52,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:02:52,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:02:52,108 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:02:52,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [748806004] [2023-12-19 10:02:52,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:02:52,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:02:52,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:02:52,123 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) [2023-12-19 10:02:52,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 10:02:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:02:52,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 10:02:52,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:02:52,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-12-19 10:02:52,932 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:02:52,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:02:52,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010000609] [2023-12-19 10:02:52,933 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:02:52,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748806004] [2023-12-19 10:02:52,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748806004] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:02:52,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:02:52,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 10:02:52,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917313918] [2023-12-19 10:02:52,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:02:52,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 10:02:52,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:02:52,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 10:02:52,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 10:02:52,939 INFO L87 Difference]: Start difference. First operand 203 states and 326 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-19 10:02:53,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:02:53,025 INFO L93 Difference]: Finished difference Result 368 states and 593 transitions. [2023-12-19 10:02:53,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 10:02:53,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 259 [2023-12-19 10:02:53,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:02:53,031 INFO L225 Difference]: With dead ends: 368 [2023-12-19 10:02:53,031 INFO L226 Difference]: Without dead ends: 246 [2023-12-19 10:02:53,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 10:02:53,034 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 123 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 10:02:53,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 566 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 10:02:53,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-12-19 10:02:53,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 217. [2023-12-19 10:02:53,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 130 states have (on average 1.4) internal successors, (182), 130 states have internal predecessors, (182), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-19 10:02:53,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 350 transitions. [2023-12-19 10:02:53,063 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 350 transitions. Word has length 259 [2023-12-19 10:02:53,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:02:53,064 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 350 transitions. [2023-12-19 10:02:53,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-19 10:02:53,065 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 350 transitions. [2023-12-19 10:02:53,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-19 10:02:53,069 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:02:53,069 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:02:53,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 10:02:53,279 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 [2023-12-19 10:02:53,280 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:02:53,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:02:53,281 INFO L85 PathProgramCache]: Analyzing trace with hash -153584993, now seen corresponding path program 1 times [2023-12-19 10:02:53,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:02:53,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690509463] [2023-12-19 10:02:53,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:02:53,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:02:53,320 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:02:53,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [740477899] [2023-12-19 10:02:53,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:02:53,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:02:53,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:02:53,329 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) [2023-12-19 10:02:53,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 10:02:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:02:53,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-19 10:02:53,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:02:54,566 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1777 proven. 249 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2023-12-19 10:02:54,566 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:02:55,499 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 102 proven. 258 refuted. 0 times theorem prover too weak. 3084 trivial. 0 not checked. [2023-12-19 10:02:55,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:02:55,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690509463] [2023-12-19 10:02:55,500 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:02:55,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740477899] [2023-12-19 10:02:55,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740477899] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 10:02:55,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 10:02:55,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2023-12-19 10:02:55,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70285381] [2023-12-19 10:02:55,500 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 10:02:55,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-19 10:02:55,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:02:55,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-19 10:02:55,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=921, Unknown=0, NotChecked=0, Total=1122 [2023-12-19 10:02:55,503 INFO L87 Difference]: Start difference. First operand 217 states and 350 transitions. Second operand has 34 states, 33 states have (on average 3.484848484848485) internal successors, (115), 32 states have internal predecessors, (115), 7 states have call successors, (73), 4 states have call predecessors, (73), 9 states have return successors, (74), 7 states have call predecessors, (74), 7 states have call successors, (74) [2023-12-19 10:02:58,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:02:58,536 INFO L93 Difference]: Finished difference Result 598 states and 874 transitions. [2023-12-19 10:02:58,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-12-19 10:02:58,537 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.484848484848485) internal successors, (115), 32 states have internal predecessors, (115), 7 states have call successors, (73), 4 states have call predecessors, (73), 9 states have return successors, (74), 7 states have call predecessors, (74), 7 states have call successors, (74) Word has length 260 [2023-12-19 10:02:58,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:02:58,540 INFO L225 Difference]: With dead ends: 598 [2023-12-19 10:02:58,540 INFO L226 Difference]: Without dead ends: 476 [2023-12-19 10:02:58,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2135 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2080, Invalid=6662, Unknown=0, NotChecked=0, Total=8742 [2023-12-19 10:02:58,544 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 1182 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 1826 mSolverCounterSat, 272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 2098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 1826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-19 10:02:58,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 1380 Invalid, 2098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 1826 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-19 10:02:58,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2023-12-19 10:02:58,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 332. [2023-12-19 10:02:58,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 228 states have (on average 1.3728070175438596) internal successors, (313), 230 states have internal predecessors, (313), 90 states have call successors, (90), 13 states have call predecessors, (90), 13 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-19 10:02:58,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 493 transitions. [2023-12-19 10:02:58,570 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 493 transitions. Word has length 260 [2023-12-19 10:02:58,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:02:58,570 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 493 transitions. [2023-12-19 10:02:58,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.484848484848485) internal successors, (115), 32 states have internal predecessors, (115), 7 states have call successors, (73), 4 states have call predecessors, (73), 9 states have return successors, (74), 7 states have call predecessors, (74), 7 states have call successors, (74) [2023-12-19 10:02:58,571 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 493 transitions. [2023-12-19 10:02:58,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-19 10:02:58,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:02:58,573 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:02:58,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-19 10:02:58,780 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 [2023-12-19 10:02:58,780 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:02:58,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:02:58,781 INFO L85 PathProgramCache]: Analyzing trace with hash -670738017, now seen corresponding path program 1 times [2023-12-19 10:02:58,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:02:58,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795721176] [2023-12-19 10:02:58,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:02:58,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:02:58,822 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:02:58,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1639135709] [2023-12-19 10:02:58,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:02:58,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:02:58,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:02:58,842 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) [2023-12-19 10:02:58,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 10:02:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:02:59,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-19 10:02:59,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:03:03,154 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1631 proven. 78 refuted. 0 times theorem prover too weak. 1735 trivial. 0 not checked. [2023-12-19 10:03:03,154 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:03:29,154 WARN L293 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 186 DAG size of output: 186 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 10:04:29,587 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-12-19 10:04:29,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:04:29,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795721176] [2023-12-19 10:04:29,588 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:04:29,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639135709] [2023-12-19 10:04:29,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639135709] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 10:04:29,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 10:04:29,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [17] total 30 [2023-12-19 10:04:29,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460982065] [2023-12-19 10:04:29,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:04:29,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-19 10:04:29,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:04:29,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-19 10:04:29,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=659, Unknown=2, NotChecked=0, Total=870 [2023-12-19 10:04:29,591 INFO L87 Difference]: Start difference. First operand 332 states and 493 transitions. Second operand has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-19 10:04:55,744 WARN L293 SmtUtils]: Spent 6.29s on a formula simplification. DAG size of input: 278 DAG size of output: 260 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 10:05:10,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:05:10,067 INFO L93 Difference]: Finished difference Result 1396 states and 2088 transitions. [2023-12-19 10:05:10,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-19 10:05:10,068 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 260 [2023-12-19 10:05:10,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:05:10,077 INFO L225 Difference]: With dead ends: 1396 [2023-12-19 10:05:10,077 INFO L226 Difference]: Without dead ends: 1179 [2023-12-19 10:05:10,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1370 ImplicationChecksByTransitivity, 62.1s TimeCoverageRelationStatistics Valid=918, Invalid=3112, Unknown=2, NotChecked=0, Total=4032 [2023-12-19 10:05:10,079 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 1253 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-12-19 10:05:10,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 928 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2023-12-19 10:05:10,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2023-12-19 10:05:10,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 374. [2023-12-19 10:05:10,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 270 states have (on average 1.4074074074074074) internal successors, (380), 272 states have internal predecessors, (380), 90 states have call successors, (90), 13 states have call predecessors, (90), 13 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-19 10:05:10,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 560 transitions. [2023-12-19 10:05:10,132 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 560 transitions. Word has length 260 [2023-12-19 10:05:10,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:05:10,136 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 560 transitions. [2023-12-19 10:05:10,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-19 10:05:10,136 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 560 transitions. [2023-12-19 10:05:10,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-19 10:05:10,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:05:10,138 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:05:10,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 10:05:10,346 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 [2023-12-19 10:05:10,346 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:05:10,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:05:10,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1480084643, now seen corresponding path program 1 times [2023-12-19 10:05:10,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:05:10,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361317420] [2023-12-19 10:05:10,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:05:10,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:05:10,391 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:05:10,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1358713325] [2023-12-19 10:05:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:05:10,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:05:10,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:05:10,406 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) [2023-12-19 10:05:10,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 10:05:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:05:10,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 10:05:10,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:05:10,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1113 proven. 99 refuted. 0 times theorem prover too weak. 2232 trivial. 0 not checked. [2023-12-19 10:05:10,861 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:05:11,046 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 24 proven. 99 refuted. 0 times theorem prover too weak. 3321 trivial. 0 not checked. [2023-12-19 10:05:11,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:05:11,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361317420] [2023-12-19 10:05:11,046 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:05:11,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358713325] [2023-12-19 10:05:11,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358713325] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 10:05:11,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 10:05:11,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-19 10:05:11,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512480680] [2023-12-19 10:05:11,047 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 10:05:11,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 10:05:11,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:05:11,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 10:05:11,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 10:05:11,048 INFO L87 Difference]: Start difference. First operand 374 states and 560 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (75), 2 states have call predecessors, (75), 4 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2023-12-19 10:05:11,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:05:11,254 INFO L93 Difference]: Finished difference Result 649 states and 967 transitions. [2023-12-19 10:05:11,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 10:05:11,255 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (75), 2 states have call predecessors, (75), 4 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) Word has length 260 [2023-12-19 10:05:11,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:05:11,257 INFO L225 Difference]: With dead ends: 649 [2023-12-19 10:05:11,257 INFO L226 Difference]: Without dead ends: 390 [2023-12-19 10:05:11,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 512 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-19 10:05:11,259 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 86 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 10:05:11,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 358 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 10:05:11,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-12-19 10:05:11,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 382. [2023-12-19 10:05:11,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 276 states have (on average 1.3768115942028984) internal successors, (380), 278 states have internal predecessors, (380), 90 states have call successors, (90), 15 states have call predecessors, (90), 15 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-19 10:05:11,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 560 transitions. [2023-12-19 10:05:11,304 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 560 transitions. Word has length 260 [2023-12-19 10:05:11,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:05:11,304 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 560 transitions. [2023-12-19 10:05:11,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (75), 2 states have call predecessors, (75), 4 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2023-12-19 10:05:11,305 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 560 transitions. [2023-12-19 10:05:11,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-19 10:05:11,308 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:05:11,308 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:05:11,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-19 10:05:11,514 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 [2023-12-19 10:05:11,515 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:05:11,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:05:11,516 INFO L85 PathProgramCache]: Analyzing trace with hash 547479585, now seen corresponding path program 1 times [2023-12-19 10:05:11,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:05:11,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941913576] [2023-12-19 10:05:11,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:05:11,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:05:11,539 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:05:11,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [231539144] [2023-12-19 10:05:11,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:05:11,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:05:11,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:05:11,554 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) [2023-12-19 10:05:11,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 10:05:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:05:11,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-19 10:05:11,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:05:19,543 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1085 proven. 432 refuted. 0 times theorem prover too weak. 1927 trivial. 0 not checked. [2023-12-19 10:05:19,544 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:06:25,757 WARN L293 SmtUtils]: Spent 9.71s on a formula simplification. DAG size of input: 845 DAG size of output: 817 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 10:07:12,828 WARN L293 SmtUtils]: Spent 11.99s on a formula simplification that was a NOOP. DAG size: 806 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 10:10:13,679 WARN L293 SmtUtils]: Spent 1.19m on a formula simplification that was a NOOP. DAG size: 810 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 10:10:54,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:10:54,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941913576] [2023-12-19 10:10:54,154 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:10:54,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231539144] [2023-12-19 10:10:54,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231539144] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 10:10:54,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-19 10:10:54,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2023-12-19 10:10:54,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737280981] [2023-12-19 10:10:54,155 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-19 10:10:54,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-19 10:10:54,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:10:54,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-19 10:10:54,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=892, Unknown=9, NotChecked=0, Total=1122 [2023-12-19 10:10:54,158 INFO L87 Difference]: Start difference. First operand 382 states and 560 transitions. Second operand has 25 states, 25 states have (on average 2.84) internal successors, (71), 23 states have internal predecessors, (71), 5 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (42), 4 states have call predecessors, (42), 5 states have call successors, (42) [2023-12-19 10:10:56,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:10:56,879 INFO L93 Difference]: Finished difference Result 1055 states and 1512 transitions. [2023-12-19 10:10:56,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-12-19 10:10:56,879 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.84) internal successors, (71), 23 states have internal predecessors, (71), 5 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (42), 4 states have call predecessors, (42), 5 states have call successors, (42) Word has length 260 [2023-12-19 10:10:56,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:10:56,886 INFO L225 Difference]: With dead ends: 1055 [2023-12-19 10:10:56,887 INFO L226 Difference]: Without dead ends: 790 [2023-12-19 10:10:56,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 885 ImplicationChecksByTransitivity, 154.9s TimeCoverageRelationStatistics Valid=694, Invalid=2603, Unknown=9, NotChecked=0, Total=3306 [2023-12-19 10:10:56,890 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 274 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 1810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-19 10:10:56,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 1630 Invalid, 1810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1781 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-19 10:10:56,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2023-12-19 10:10:56,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 440. [2023-12-19 10:10:56,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 332 states have (on average 1.3825301204819278) internal successors, (459), 334 states have internal predecessors, (459), 90 states have call successors, (90), 17 states have call predecessors, (90), 17 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-19 10:10:56,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 639 transitions. [2023-12-19 10:10:56,936 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 639 transitions. Word has length 260 [2023-12-19 10:10:56,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:10:56,937 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 639 transitions. [2023-12-19 10:10:56,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.84) internal successors, (71), 23 states have internal predecessors, (71), 5 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (42), 4 states have call predecessors, (42), 5 states have call successors, (42) [2023-12-19 10:10:56,937 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 639 transitions. [2023-12-19 10:10:56,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-19 10:10:56,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:10:56,938 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:10:56,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-19 10:10:57,160 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 [2023-12-19 10:10:57,161 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:10:57,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:10:57,161 INFO L85 PathProgramCache]: Analyzing trace with hash 30326561, now seen corresponding path program 1 times [2023-12-19 10:10:57,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:10:57,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993411311] [2023-12-19 10:10:57,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:10:57,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:10:57,191 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:10:57,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1175014777] [2023-12-19 10:10:57,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:10:57,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:10:57,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:10:57,206 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) [2023-12-19 10:10:57,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 10:10:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:10:57,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-19 10:10:57,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:11:01,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1673 proven. 75 refuted. 0 times theorem prover too weak. 1696 trivial. 0 not checked. [2023-12-19 10:11:01,916 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:12:37,909 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-12-19 10:12:37,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:12:37,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993411311] [2023-12-19 10:12:37,910 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:12:37,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175014777] [2023-12-19 10:12:37,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175014777] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 10:12:37,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 10:12:37,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [18] total 32 [2023-12-19 10:12:37,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149289084] [2023-12-19 10:12:37,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:12:37,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-19 10:12:37,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:12:37,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-19 10:12:37,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=744, Unknown=11, NotChecked=0, Total=992 [2023-12-19 10:12:37,912 INFO L87 Difference]: Start difference. First operand 440 states and 639 transitions. Second operand has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-19 10:12:55,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 10:13:11,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 10:13:19,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 10:13:23,836 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse74 (mod c_~var_1_5~0 65536)) (.cse87 (mod c_~var_1_17~0 4294967296))) (let ((.cse10 (mod c_~var_1_1~0 65536)) (.cse83 (* 65535 c_~var_1_5~0)) (.cse86 (* 65535 c_~var_1_7~0)) (.cse62 (mod c_~var_1_4~0 65536)) (.cse88 (+ .cse87 1)) (.cse3 (mod |c_ULTIMATE.start_step_~stepLocal_2~0#1| 4294967296)) (.cse71 (+ .cse74 1)) (.cse13 (mod c_~var_1_7~0 65536))) (let ((.cse0 (= (mod c_~last_1_var_1_8~0 256) 0)) (.cse2 (+ .cse13 1)) (.cse76 (< 65534 .cse74)) (.cse85 (< .cse3 .cse71)) (.cse61 (< 65534 .cse87)) (.cse73 (= (mod c_~var_1_9~0 256) 0)) (.cse63 (< .cse3 .cse88)) (.cse70 (mod c_~var_1_6~0 65536)) (.cse58 (mod c_~var_1_8~0 256)) (.cse7 (< 56892 .cse62)) (.cse82 (= .cse10 (mod (+ .cse83 c_~var_1_4~0 .cse86) 65536)))) (let ((.cse19 (or .cse7 .cse82)) (.cse22 (mod (+ .cse83 56892) 65536)) (.cse12 (+ .cse10 65536)) (.cse4 (mod (+ .cse83 c_~var_1_4~0) 65536)) (.cse34 (= 0 .cse58)) (.cse36 (mod c_~var_1_16~0 65536)) (.cse35 (+ .cse74 c_~var_1_11~0)) (.cse33 (mod c_~var_1_14~0 65536)) (.cse79 (< .cse70 .cse88)) (.cse78 (= .cse70 .cse74)) (.cse80 (or (= c_~var_1_13~0 c_~var_1_10~0) (< .cse87 .cse70))) (.cse77 (= (+ 65536 c_~var_1_10~0) .cse62)) (.cse65 (= (+ 65536 c_~var_1_13~0) .cse62)) (.cse59 (or .cse61 .cse73 .cse63)) (.cse60 (or .cse76 .cse61 .cse63 .cse85)) (.cse64 (or (< .cse74 (+ 2 .cse87)) .cse63)) (.cse69 (< .cse70 .cse2)) (.cse8 (= .cse10 (mod (+ .cse83 .cse86 56892) 65536))) (.cse18 (< .cse62 56893)) (.cse66 (not .cse0)) (.cse72 (< .cse74 .cse13)) (.cse67 (< .cse13 .cse71)) (.cse75 (< 65534 .cse13)) (.cse68 (= .cse10 .cse74))) (and (or .cse0 (and (or (and (forall ((v_z_541 Int) (v_y_541 Int)) (let ((.cse1 (+ (* 65536 v_y_541) (* v_z_541 65535)))) (or (< .cse1 .cse2) (< 65535 .cse1) (< 65535 v_z_541) (< .cse3 .cse1) (< v_z_541 0)))) (forall ((v_z_541 Int) (v_y_541 Int)) (let ((.cse5 (+ (* 65536 v_y_541) (* v_z_541 65535)))) (or (< (+ .cse4 v_z_541) 65536) (< .cse5 .cse2) (< 65535 .cse5) (< 65535 v_z_541) (< .cse3 .cse5)))) (forall ((v_z_541 Int) (v_y_541 Int)) (let ((.cse6 (+ (* 65536 v_y_541) (* v_z_541 65535)))) (or (< .cse6 .cse2) (< 65535 .cse6) (< .cse3 .cse6) (< 65535 (+ .cse4 v_z_541)) (< v_z_541 0))))) .cse7) (or .cse8 (and (forall ((v_z_540 Int) (v_y_540 Int)) (let ((.cse11 (+ .cse4 v_z_540)) (.cse9 (+ (* 65536 v_y_540) (* v_z_540 65535)))) (or (< .cse3 .cse9) (= .cse10 .cse11) (= .cse12 .cse11) (< 65535 v_z_540) (< .cse9 0) (< .cse13 .cse9) (< v_z_540 0)))) (forall ((v_z_540 Int) (v_y_540 Int)) (let ((.cse15 (+ .cse4 v_z_540)) (.cse14 (+ (* 65536 v_y_540) (* v_z_540 65535)))) (or (< .cse3 .cse14) (= .cse10 .cse15) (< .cse14 0) (< 65535 .cse15) (< .cse13 .cse14) (< v_z_540 0)))) (forall ((v_z_540 Int) (v_y_540 Int)) (let ((.cse17 (+ .cse4 v_z_540)) (.cse16 (+ (* 65536 v_y_540) (* v_z_540 65535)))) (or (< .cse3 .cse16) (= .cse12 .cse17) (< 65535 v_z_540) (< .cse16 0) (< .cse17 65536) (< .cse13 .cse16))))) .cse18) .cse19 (or (and (forall ((v_y_538 Int) (v_z_538 Int)) (let ((.cse20 (+ (* 65536 v_y_538) (* v_z_538 65535))) (.cse21 (+ .cse22 v_z_538))) (or (< .cse3 .cse20) (< .cse20 .cse2) (< 65535 .cse20) (< v_z_538 0) (< 65535 .cse21) (= .cse10 .cse21)))) (or .cse8 (and (forall ((v_y_537 Int) (v_z_537 Int)) (let ((.cse23 (+ (* v_z_537 65535) (* 65536 v_y_537))) (.cse24 (+ .cse22 v_z_537))) (or (< .cse23 0) (< 65535 .cse23) (< 65535 v_z_537) (< .cse3 .cse23) (< .cse24 65536) (= .cse12 .cse24)))) (forall ((v_y_537 Int) (v_z_537 Int)) (let ((.cse25 (+ (* v_z_537 65535) (* 65536 v_y_537))) (.cse26 (+ .cse22 v_z_537))) (or (< .cse25 0) (< 65535 .cse25) (< 65535 v_z_537) (< .cse3 .cse25) (= .cse10 .cse26) (= .cse12 .cse26) (< v_z_537 0)))) (forall ((v_y_537 Int) (v_z_537 Int)) (let ((.cse27 (+ (* v_z_537 65535) (* 65536 v_y_537))) (.cse28 (+ .cse22 v_z_537))) (or (< .cse27 0) (< 65535 .cse27) (< .cse3 .cse27) (= .cse10 .cse28) (< 65535 .cse28) (< v_z_537 0)))))) (forall ((v_y_538 Int) (v_z_538 Int)) (let ((.cse29 (+ (* 65536 v_y_538) (* v_z_538 65535))) (.cse30 (+ .cse22 v_z_538))) (or (< .cse3 .cse29) (< .cse30 65536) (< 65535 v_z_538) (< .cse29 .cse2) (< 65535 .cse29) (= .cse30 .cse12)))) (forall ((v_y_538 Int) (v_z_538 Int)) (let ((.cse31 (+ (* 65536 v_y_538) (* v_z_538 65535))) (.cse32 (+ .cse22 v_z_538))) (or (< .cse3 .cse31) (< 65535 v_z_538) (< .cse31 .cse2) (< 65535 .cse31) (< v_z_538 0) (= .cse10 .cse32) (= .cse32 .cse12))))) .cse18))) (or (= .cse4 .cse33) .cse34 (< .cse35 (+ .cse36 1))) (or .cse0 (and .cse19 (or (and (forall ((v_z_541 Int) (v_y_541 Int)) (let ((.cse37 (+ (* 65536 v_y_541) (* v_z_541 65535)))) (or (< .cse37 .cse2) (< 65535 .cse37) (< 65535 v_z_541) (< v_z_541 0)))) (forall ((v_z_541 Int) (v_y_541 Int)) (let ((.cse38 (+ (* 65536 v_y_541) (* v_z_541 65535)))) (or (< (+ .cse4 v_z_541) 65536) (< .cse38 .cse2) (< 65535 .cse38) (< 65535 v_z_541)))) (forall ((v_z_541 Int) (v_y_541 Int)) (let ((.cse39 (+ (* 65536 v_y_541) (* v_z_541 65535)))) (or (< .cse39 .cse2) (< 65535 .cse39) (< 65535 (+ .cse4 v_z_541)) (< v_z_541 0))))) .cse7) (or (and (forall ((v_y_538 Int) (v_z_538 Int)) (let ((.cse40 (+ (* 65536 v_y_538) (* v_z_538 65535))) (.cse41 (+ .cse22 v_z_538))) (or (< .cse40 .cse2) (< 65535 .cse40) (< v_z_538 0) (< 65535 .cse41) (= .cse10 .cse41)))) (or (and (forall ((v_y_537 Int) (v_z_537 Int)) (let ((.cse42 (+ (* v_z_537 65535) (* 65536 v_y_537))) (.cse43 (+ .cse22 v_z_537))) (or (< .cse42 0) (< 65535 .cse42) (= .cse10 .cse43) (< 65535 .cse43) (< v_z_537 0)))) (forall ((v_y_537 Int) (v_z_537 Int)) (let ((.cse44 (+ (* v_z_537 65535) (* 65536 v_y_537))) (.cse45 (+ .cse22 v_z_537))) (or (< .cse44 0) (< 65535 .cse44) (< 65535 v_z_537) (= .cse10 .cse45) (= .cse12 .cse45) (< v_z_537 0)))) (forall ((v_y_537 Int) (v_z_537 Int)) (let ((.cse46 (+ (* v_z_537 65535) (* 65536 v_y_537))) (.cse47 (+ .cse22 v_z_537))) (or (< .cse46 0) (< 65535 .cse46) (< 65535 v_z_537) (< .cse47 65536) (= .cse12 .cse47))))) .cse8) (forall ((v_y_538 Int) (v_z_538 Int)) (let ((.cse48 (+ (* 65536 v_y_538) (* v_z_538 65535))) (.cse49 (+ .cse22 v_z_538))) (or (< 65535 v_z_538) (< .cse48 .cse2) (< 65535 .cse48) (< v_z_538 0) (= .cse10 .cse49) (= .cse49 .cse12)))) (forall ((v_y_538 Int) (v_z_538 Int)) (let ((.cse51 (+ (* 65536 v_y_538) (* v_z_538 65535))) (.cse50 (+ .cse22 v_z_538))) (or (< .cse50 65536) (< 65535 v_z_538) (< .cse51 .cse2) (< 65535 .cse51) (= .cse50 .cse12))))) .cse18) (or .cse8 .cse18 (and (forall ((v_z_540 Int) (v_y_540 Int)) (let ((.cse52 (+ .cse4 v_z_540)) (.cse53 (+ (* 65536 v_y_540) (* v_z_540 65535)))) (or (= .cse10 .cse52) (= .cse12 .cse52) (< 65535 v_z_540) (< .cse53 0) (< .cse13 .cse53) (< v_z_540 0)))) (forall ((v_z_540 Int) (v_y_540 Int)) (let ((.cse54 (+ .cse4 v_z_540)) (.cse55 (+ (* 65536 v_y_540) (* v_z_540 65535)))) (or (= .cse10 .cse54) (< .cse55 0) (< 65535 .cse54) (< .cse13 .cse55) (< v_z_540 0)))) (forall ((v_z_540 Int) (v_y_540 Int)) (let ((.cse56 (+ .cse4 v_z_540)) (.cse57 (+ (* 65536 v_y_540) (* v_z_540 65535)))) (or (= .cse12 .cse56) (< 65535 v_z_540) (< .cse57 0) (< .cse56 65536) (< .cse13 .cse57)))))))) (or .cse0 (< 0 .cse58)) (or (and .cse59 .cse60 (or .cse61 (< 32767 .cse62) .cse63) .cse64) (not .cse65)) (or .cse66 (and (or .cse67 .cse68 .cse69) (or (< .cse70 .cse71) .cse72 .cse68))) (or (and (or (not .cse73) (and (<= .cse74 .cse13) (<= .cse10 .cse62))) (= 1 .cse58)) (and .cse34 (or (< .cse13 .cse74) (< .cse62 .cse10)) .cse73)) (or (and (or .cse67 .cse75 .cse68) (or .cse72 .cse76 .cse68)) .cse66) (or (and (or .cse76 .cse68) .cse0) (< 65533 .cse36)) (or .cse77 (and (or (and .cse78 (<= .cse62 32767) (= .cse62 c_~var_1_10~0) .cse73) .cse79) .cse80)) (or .cse34 (< .cse36 .cse35) (= .cse33 (mod (+ c_~var_1_4~0 (* c_~var_1_16~0 65535) c_~var_1_11~0) 65536))) (or (and (or .cse79 (and .cse78 (<= 32768 .cse62) .cse73)) .cse80) (not .cse77)) (or .cse65 (and (or .cse61 (< .cse62 32768) .cse63) .cse59 .cse60 (or (= c_~var_1_13~0 .cse62) .cse61 .cse63) .cse64)) (or (let ((.cse81 (< .cse13 .cse70)) (.cse84 (* c_~var_1_6~0 65535))) (and (or .cse81 .cse7 .cse82) (or (and (or .cse8 .cse81 .cse18) (or .cse7 .cse69)) (= .cse10 (mod (+ .cse83 .cse84 c_~var_1_4~0) 65536))) (or (and .cse8 (<= .cse70 .cse13)) (= .cse10 (mod (+ .cse83 .cse84 56892) 65536)) .cse18))) .cse0) (or .cse66 (and (or .cse72 .cse76 .cse68 .cse85) (or .cse67 (< .cse3 .cse2) .cse75 .cse68)))))))) is different from false [2023-12-19 10:13:28,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 10:13:32,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 10:13:38,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 10:13:47,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 10:13:49,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 10:13:54,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 10:13:58,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 10:14:00,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 10:14:02,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 10:14:06,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 10:14:09,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 10:14:12,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 10:14:20,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 10:14:20,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:14:20,826 INFO L93 Difference]: Finished difference Result 1436 states and 2090 transitions. [2023-12-19 10:14:20,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-19 10:14:20,827 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 260 [2023-12-19 10:14:20,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:14:20,830 INFO L225 Difference]: With dead ends: 1436 [2023-12-19 10:14:20,830 INFO L226 Difference]: Without dead ends: 1173 [2023-12-19 10:14:20,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 112.2s TimeCoverageRelationStatistics Valid=798, Invalid=2613, Unknown=15, NotChecked=114, Total=3540 [2023-12-19 10:14:20,832 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 1255 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 79 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 59.7s IncrementalHoareTripleChecker+Time [2023-12-19 10:14:20,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 994 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1515 Invalid, 8 Unknown, 14 Unchecked, 59.7s Time] [2023-12-19 10:14:20,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2023-12-19 10:14:20,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 444. [2023-12-19 10:14:20,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 336 states have (on average 1.3839285714285714) internal successors, (465), 338 states have internal predecessors, (465), 90 states have call successors, (90), 17 states have call predecessors, (90), 17 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-19 10:14:20,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 645 transitions. [2023-12-19 10:14:20,872 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 645 transitions. Word has length 260 [2023-12-19 10:14:20,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:14:20,873 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 645 transitions. [2023-12-19 10:14:20,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-19 10:14:20,873 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 645 transitions. [2023-12-19 10:14:20,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-19 10:14:20,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:14:20,875 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:14:20,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 10:14:21,082 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 [2023-12-19 10:14:21,082 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:14:21,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:14:21,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1541730719, now seen corresponding path program 1 times [2023-12-19 10:14:21,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:14:21,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283055485] [2023-12-19 10:14:21,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:14:21,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:14:21,110 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:14:21,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1957248706] [2023-12-19 10:14:21,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:14:21,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:14:21,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:14:21,115 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) [2023-12-19 10:14:21,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 10:14:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:14:21,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-19 10:14:21,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:14:25,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-12-19 10:14:25,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:14:25,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:14:25,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283055485] [2023-12-19 10:14:25,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:14:25,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957248706] [2023-12-19 10:14:25,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957248706] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:14:25,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:14:25,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 10:14:25,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987775821] [2023-12-19 10:14:25,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:14:25,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 10:14:25,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:14:25,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 10:14:25,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-12-19 10:14:25,672 INFO L87 Difference]: Start difference. First operand 444 states and 645 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-19 10:14:26,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:14:26,559 INFO L93 Difference]: Finished difference Result 1021 states and 1471 transitions. [2023-12-19 10:14:26,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 10:14:26,570 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 260 [2023-12-19 10:14:26,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:14:26,576 INFO L225 Difference]: With dead ends: 1021 [2023-12-19 10:14:26,576 INFO L226 Difference]: Without dead ends: 578 [2023-12-19 10:14:26,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2023-12-19 10:14:26,579 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 234 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 10:14:26,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 1036 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 10:14:26,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2023-12-19 10:14:26,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 442. [2023-12-19 10:14:26,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 334 states have (on average 1.3832335329341316) internal successors, (462), 336 states have internal predecessors, (462), 90 states have call successors, (90), 17 states have call predecessors, (90), 17 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-19 10:14:26,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 642 transitions. [2023-12-19 10:14:26,625 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 642 transitions. Word has length 260 [2023-12-19 10:14:26,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:14:26,625 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 642 transitions. [2023-12-19 10:14:26,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-19 10:14:26,626 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 642 transitions. [2023-12-19 10:14:26,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-19 10:14:26,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:14:26,627 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:14:26,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 10:14:26,833 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 [2023-12-19 10:14:26,833 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:14:26,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:14:26,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1741932895, now seen corresponding path program 1 times [2023-12-19 10:14:26,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:14:26,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161671692] [2023-12-19 10:14:26,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:14:26,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:14:26,861 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:14:26,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [480194874] [2023-12-19 10:14:26,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:14:26,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:14:26,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:14:26,865 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) [2023-12-19 10:14:26,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 10:14:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:14:27,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 49 conjunts are in the unsatisfiable core [2023-12-19 10:14:27,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:14:30,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1591 proven. 558 refuted. 0 times theorem prover too weak. 1295 trivial. 0 not checked. [2023-12-19 10:14:30,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:14:33,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 102 proven. 483 refuted. 0 times theorem prover too weak. 2859 trivial. 0 not checked. [2023-12-19 10:14:33,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:14:33,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161671692] [2023-12-19 10:14:33,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:14:33,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480194874] [2023-12-19 10:14:33,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480194874] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 10:14:33,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 10:14:33,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 23] total 47 [2023-12-19 10:14:33,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294344874] [2023-12-19 10:14:33,710 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 10:14:33,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-12-19 10:14:33,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:14:33,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-12-19 10:14:33,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=1749, Unknown=0, NotChecked=0, Total=2162 [2023-12-19 10:14:33,713 INFO L87 Difference]: Start difference. First operand 442 states and 642 transitions. Second operand has 47 states, 47 states have (on average 2.9361702127659575) internal successors, (138), 46 states have internal predecessors, (138), 12 states have call successors, (83), 7 states have call predecessors, (83), 16 states have return successors, (84), 11 states have call predecessors, (84), 12 states have call successors, (84) [2023-12-19 10:14:40,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:14:40,599 INFO L93 Difference]: Finished difference Result 1451 states and 2032 transitions. [2023-12-19 10:14:40,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2023-12-19 10:14:40,600 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.9361702127659575) internal successors, (138), 46 states have internal predecessors, (138), 12 states have call successors, (83), 7 states have call predecessors, (83), 16 states have return successors, (84), 11 states have call predecessors, (84), 12 states have call successors, (84) Word has length 260 [2023-12-19 10:14:40,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:14:40,605 INFO L225 Difference]: With dead ends: 1451 [2023-12-19 10:14:40,605 INFO L226 Difference]: Without dead ends: 1010 [2023-12-19 10:14:40,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 589 GetRequests, 477 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3840 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=2677, Invalid=10205, Unknown=0, NotChecked=0, Total=12882 [2023-12-19 10:14:40,610 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 756 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 2070 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 2304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 2070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-19 10:14:40,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 1156 Invalid, 2304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 2070 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-19 10:14:40,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2023-12-19 10:14:40,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 428. [2023-12-19 10:14:40,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 323 states have (on average 1.3777089783281733) internal successors, (445), 323 states have internal predecessors, (445), 84 states have call successors, (84), 20 states have call predecessors, (84), 20 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-19 10:14:40,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 613 transitions. [2023-12-19 10:14:40,717 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 613 transitions. Word has length 260 [2023-12-19 10:14:40,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:14:40,718 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 613 transitions. [2023-12-19 10:14:40,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.9361702127659575) internal successors, (138), 46 states have internal predecessors, (138), 12 states have call successors, (83), 7 states have call predecessors, (83), 16 states have return successors, (84), 11 states have call predecessors, (84), 12 states have call successors, (84) [2023-12-19 10:14:40,718 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 613 transitions. [2023-12-19 10:14:40,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-19 10:14:40,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:14:40,719 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:14:40,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-19 10:14:40,927 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 [2023-12-19 10:14:40,927 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:14:40,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:14:40,928 INFO L85 PathProgramCache]: Analyzing trace with hash 2035881377, now seen corresponding path program 1 times [2023-12-19 10:14:40,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:14:40,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558705345] [2023-12-19 10:14:40,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:14:40,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:14:40,959 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:14:40,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1991651761] [2023-12-19 10:14:40,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:14:40,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:14:40,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:14:40,988 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 10:14:40,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-19 10:14:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:14:41,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 53 conjunts are in the unsatisfiable core [2023-12-19 10:14:41,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:14:52,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1566 proven. 498 refuted. 0 times theorem prover too weak. 1380 trivial. 0 not checked. [2023-12-19 10:14:52,724 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:15:23,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 75 proven. 285 refuted. 0 times theorem prover too weak. 3084 trivial. 0 not checked. [2023-12-19 10:15:23,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:15:23,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558705345] [2023-12-19 10:15:23,248 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:15:23,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991651761] [2023-12-19 10:15:23,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991651761] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 10:15:23,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 10:15:23,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 27] total 57 [2023-12-19 10:15:23,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673145002] [2023-12-19 10:15:23,248 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 10:15:23,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2023-12-19 10:15:23,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:15:23,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2023-12-19 10:15:23,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=724, Invalid=2468, Unknown=0, NotChecked=0, Total=3192 [2023-12-19 10:15:23,251 INFO L87 Difference]: Start difference. First operand 428 states and 613 transitions. Second operand has 57 states, 55 states have (on average 2.5090909090909093) internal successors, (138), 56 states have internal predecessors, (138), 13 states have call successors, (84), 8 states have call predecessors, (84), 14 states have return successors, (84), 11 states have call predecessors, (84), 13 states have call successors, (84) [2023-12-19 10:15:50,929 WARN L293 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 146 DAG size of output: 139 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 10:16:06,601 WARN L293 SmtUtils]: Spent 8.82s on a formula simplification. DAG size of input: 145 DAG size of output: 138 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 10:16:28,000 WARN L293 SmtUtils]: Spent 15.37s on a formula simplification. DAG size of input: 156 DAG size of output: 149 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 10:16:42,127 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification. DAG size of input: 171 DAG size of output: 164 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 10:16:59,289 WARN L293 SmtUtils]: Spent 13.96s on a formula simplification. DAG size of input: 191 DAG size of output: 188 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-12-19 10:17:08,495 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 [2023-12-19 10:17:08,499 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 10:17:08,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2023-12-19 10:17:08,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9706 ImplicationChecksByTransitivity, 105.2s TimeCoverageRelationStatistics Valid=4964, Invalid=20796, Unknown=0, NotChecked=0, Total=25760 [2023-12-19 10:17:08,573 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 2666 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 5027 mSolverCounterSat, 610 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2666 SdHoareTripleChecker+Valid, 2395 SdHoareTripleChecker+Invalid, 5637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 610 IncrementalHoareTripleChecker+Valid, 5027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-12-19 10:17:08,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2666 Valid, 2395 Invalid, 5637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [610 Valid, 5027 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-12-19 10:17:08,585 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 10:17:08,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-19 10:17:08,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 10:17:08,786 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (428states) and FLOYD_HOARE automaton (currently 122 states, 57 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-8-5-7-3-4-3-2-3-1 term,while SimplifyDDA2 was simplifying 3 xjuncts wrt. a ∨-2-1 context. [2023-12-19 10:17:08,790 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:17:08,791 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 10:17:08,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 10:17:08 BoogieIcfgContainer [2023-12-19 10:17:08,793 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 10:17:08,793 INFO L158 Benchmark]: Toolchain (without parser) took 860569.76ms. Allocated memory was 395.3MB in the beginning and 1.5GB in the end (delta: 1.1GB). Free memory was 344.0MB in the beginning and 1.2GB in the end (delta: -866.0MB). Peak memory consumption was 251.1MB. Max. memory is 8.0GB. [2023-12-19 10:17:08,794 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 202.4MB. Free memory is still 153.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 10:17:08,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.21ms. Allocated memory is still 395.3MB. Free memory was 344.0MB in the beginning and 326.9MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-19 10:17:08,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 133.67ms. Allocated memory is still 395.3MB. Free memory was 326.9MB in the beginning and 321.0MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-19 10:17:08,794 INFO L158 Benchmark]: Boogie Preprocessor took 187.49ms. Allocated memory is still 395.3MB. Free memory was 321.0MB in the beginning and 312.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-19 10:17:08,794 INFO L158 Benchmark]: RCFGBuilder took 885.10ms. Allocated memory is still 395.3MB. Free memory was 312.6MB in the beginning and 336.7MB in the end (delta: -24.1MB). Peak memory consumption was 17.7MB. Max. memory is 8.0GB. [2023-12-19 10:17:08,794 INFO L158 Benchmark]: TraceAbstraction took 858967.80ms. Allocated memory was 395.3MB in the beginning and 1.5GB in the end (delta: 1.1GB). Free memory was 336.1MB in the beginning and 1.2GB in the end (delta: -873.9MB). Peak memory consumption was 242.8MB. Max. memory is 8.0GB. [2023-12-19 10:17:08,795 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 202.4MB. Free memory is still 153.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 389.21ms. Allocated memory is still 395.3MB. Free memory was 344.0MB in the beginning and 326.9MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 133.67ms. Allocated memory is still 395.3MB. Free memory was 326.9MB in the beginning and 321.0MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 187.49ms. Allocated memory is still 395.3MB. Free memory was 321.0MB in the beginning and 312.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 885.10ms. Allocated memory is still 395.3MB. Free memory was 312.6MB in the beginning and 336.7MB in the end (delta: -24.1MB). Peak memory consumption was 17.7MB. Max. memory is 8.0GB. * TraceAbstraction took 858967.80ms. Allocated memory was 395.3MB in the beginning and 1.5GB in the end (delta: 1.1GB). Free memory was 336.1MB in the beginning and 1.2GB in the end (delta: -873.9MB). Peak memory consumption was 242.8MB. 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 constructing difference of abstraction (428states) and FLOYD_HOARE automaton (currently 122 states, 57 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-8-5-7-3-4-3-2-3-1 term,while SimplifyDDA2 was simplifying 3 xjuncts wrt. a ∨-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 125 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 858.9s, OverallIterations: 11, TraceHistogramMax: 42, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 262.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 7893 SdHoareTripleChecker+Valid, 83.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7871 mSDsluCounter, 11016 SdHoareTripleChecker+Invalid, 80.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 14 IncrementalHoareTripleChecker+Unchecked, 9120 mSDsCounter, 1285 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14497 IncrementalHoareTripleChecker+Invalid, 15804 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1285 mSolverCounterUnsat, 1896 mSDtfsCounter, 14497 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4766 GetRequests, 4197 SyntacticMatches, 1 SemanticMatches, 567 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 19159 ImplicationChecksByTransitivity, 442.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=444occurred in iteration=8, InterpolantAutomatonStates: 304, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 2799 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 590.3s InterpolantComputationTime, 3116 NumberOfCodeBlocks, 3116 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 4400 ConstructedInterpolants, 20 QuantifiedInterpolants, 75967 SizeOfPredicates, 163 NumberOfNonLiveVariables, 6247 ConjunctsInSsa, 263 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 55434/58548 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