/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 03:40:36,680 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 03:40:36,721 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 03:40:36,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 03:40:36,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 03:40:36,739 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 03:40:36,739 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 03:40:36,740 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 03:40:36,740 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 03:40:36,740 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 03:40:36,740 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 03:40:36,741 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 03:40:36,741 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 03:40:36,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 03:40:36,741 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 03:40:36,742 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 03:40:36,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 03:40:36,742 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 03:40:36,742 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 03:40:36,743 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 03:40:36,743 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 03:40:36,744 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 03:40:36,744 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 03:40:36,744 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 03:40:36,744 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 03:40:36,745 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 03:40:36,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 03:40:36,745 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 03:40:36,746 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 03:40:36,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 03:40:36,746 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 03:40:36,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 03:40:36,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:40:36,747 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 03:40:36,747 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 03:40:36,748 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 03:40:36,748 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 03:40:36,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 03:40:36,748 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 03:40:36,749 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 03:40:36,749 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 03:40:36,749 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 03:40:36,749 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 03:40:36,750 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 03:40:36,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 03:40:36,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 03:40:36,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 03:40:36,954 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 03:40:36,954 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 03:40:36,956 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i [2023-12-16 03:40:38,015 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 03:40:38,173 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 03:40:38,174 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i [2023-12-16 03:40:38,186 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8bb28eb7/6e4e97f1523349c69d985153c9e1dc5a/FLAG9f7501fdc [2023-12-16 03:40:38,195 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8bb28eb7/6e4e97f1523349c69d985153c9e1dc5a [2023-12-16 03:40:38,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 03:40:38,198 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 03:40:38,201 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 03:40:38,201 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 03:40:38,205 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 03:40:38,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:40:38" (1/1) ... [2023-12-16 03:40:38,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9922c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:38, skipping insertion in model container [2023-12-16 03:40:38,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:40:38" (1/1) ... [2023-12-16 03:40:38,245 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 03:40:38,340 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_loopvsstraightlinecode_100-while_file-16.i[916,929] [2023-12-16 03:40:38,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:40:38,403 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 03:40:38,410 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_loopvsstraightlinecode_100-while_file-16.i[916,929] [2023-12-16 03:40:38,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:40:38,479 INFO L206 MainTranslator]: Completed translation [2023-12-16 03:40:38,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:38 WrapperNode [2023-12-16 03:40:38,480 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 03:40:38,481 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 03:40:38,481 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 03:40:38,481 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 03:40:38,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:38" (1/1) ... [2023-12-16 03:40:38,498 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:38" (1/1) ... [2023-12-16 03:40:38,526 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 214 [2023-12-16 03:40:38,527 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 03:40:38,527 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 03:40:38,527 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 03:40:38,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 03:40:38,535 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:38" (1/1) ... [2023-12-16 03:40:38,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:38" (1/1) ... [2023-12-16 03:40:38,538 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:38" (1/1) ... [2023-12-16 03:40:38,551 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]. [2023-12-16 03:40:38,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:38" (1/1) ... [2023-12-16 03:40:38,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:38" (1/1) ... [2023-12-16 03:40:38,559 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:38" (1/1) ... [2023-12-16 03:40:38,574 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:38" (1/1) ... [2023-12-16 03:40:38,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:38" (1/1) ... [2023-12-16 03:40:38,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:38" (1/1) ... [2023-12-16 03:40:38,582 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 03:40:38,583 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 03:40:38,583 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 03:40:38,583 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 03:40:38,584 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:38" (1/1) ... [2023-12-16 03:40:38,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:40:38,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:40:38,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 03:40:38,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 03:40:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 03:40:38,651 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 03:40:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 03:40:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 03:40:38,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 03:40:38,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 03:40:38,735 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 03:40:38,738 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 03:40:39,034 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 03:40:39,064 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 03:40:39,065 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 03:40:39,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:40:39 BoogieIcfgContainer [2023-12-16 03:40:39,065 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 03:40:39,067 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 03:40:39,067 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 03:40:39,069 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 03:40:39,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:40:38" (1/3) ... [2023-12-16 03:40:39,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b24238c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:40:39, skipping insertion in model container [2023-12-16 03:40:39,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:40:38" (2/3) ... [2023-12-16 03:40:39,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b24238c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:40:39, skipping insertion in model container [2023-12-16 03:40:39,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:40:39" (3/3) ... [2023-12-16 03:40:39,071 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-16.i [2023-12-16 03:40:39,088 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 03:40:39,088 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 03:40:39,128 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 03:40:39,134 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;@5d15266e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 03:40:39,134 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 03:40:39,137 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 54 states have (on average 1.5) internal successors, (81), 55 states have internal predecessors, (81), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-16 03:40:39,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 03:40:39,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:40:39,162 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:40:39,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:40:39,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:40:39,168 INFO L85 PathProgramCache]: Analyzing trace with hash 254285818, now seen corresponding path program 1 times [2023-12-16 03:40:39,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:40:39,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191572902] [2023-12-16 03:40:39,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:39,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:40:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:40:39,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:40:39,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191572902] [2023-12-16 03:40:39,378 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 03:40:39,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906830493] [2023-12-16 03:40:39,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:39,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:40:39,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:40:39,386 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:40:39,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 03:40:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:40:39,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 03:40:39,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:40:39,544 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2023-12-16 03:40:39,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:40:39,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906830493] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:40:39,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:40:39,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 03:40:39,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764688920] [2023-12-16 03:40:39,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:40:39,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 03:40:39,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:40:39,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 03:40:39,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 03:40:39,579 INFO L87 Difference]: Start difference. First operand has 78 states, 54 states have (on average 1.5) internal successors, (81), 55 states have internal predecessors, (81), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 03:40:39,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:40:39,620 INFO L93 Difference]: Finished difference Result 153 states and 265 transitions. [2023-12-16 03:40:39,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 03:40:39,622 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 141 [2023-12-16 03:40:39,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:40:39,628 INFO L225 Difference]: With dead ends: 153 [2023-12-16 03:40:39,628 INFO L226 Difference]: Without dead ends: 76 [2023-12-16 03:40:39,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 03:40:39,634 INFO L413 NwaCegarLoop]: 115 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, 115 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 [2023-12-16 03:40:39,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:40:39,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-16 03:40:39,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-16 03:40:39,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 53 states have (on average 1.4339622641509433) internal successors, (76), 53 states have internal predecessors, (76), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-16 03:40:39,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 118 transitions. [2023-12-16 03:40:39,683 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 118 transitions. Word has length 141 [2023-12-16 03:40:39,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:40:39,684 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 118 transitions. [2023-12-16 03:40:39,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 03:40:39,685 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 118 transitions. [2023-12-16 03:40:39,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 03:40:39,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:40:39,692 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:40:39,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 03:40:39,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-16 03:40:39,893 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:40:39,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:40:39,893 INFO L85 PathProgramCache]: Analyzing trace with hash -708969596, now seen corresponding path program 1 times [2023-12-16 03:40:39,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:40:39,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046129644] [2023-12-16 03:40:39,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:39,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:40:39,944 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:40:39,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [687813612] [2023-12-16 03:40:39,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:39,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:40:39,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:40:39,949 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:40:39,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 03:40:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:40:40,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 03:40:40,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:40:40,118 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-12-16 03:40:40,118 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:40:40,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:40:40,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046129644] [2023-12-16 03:40:40,119 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:40:40,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687813612] [2023-12-16 03:40:40,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687813612] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:40:40,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:40:40,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 03:40:40,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782425652] [2023-12-16 03:40:40,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:40:40,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 03:40:40,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:40:40,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 03:40:40,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 03:40:40,121 INFO L87 Difference]: Start difference. First operand 76 states and 118 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-16 03:40:40,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:40:40,178 INFO L93 Difference]: Finished difference Result 159 states and 244 transitions. [2023-12-16 03:40:40,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 03:40:40,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 141 [2023-12-16 03:40:40,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:40:40,182 INFO L225 Difference]: With dead ends: 159 [2023-12-16 03:40:40,182 INFO L226 Difference]: Without dead ends: 84 [2023-12-16 03:40:40,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 03:40:40,185 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 54 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 03:40:40,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 165 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:40:40,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-16 03:40:40,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 83. [2023-12-16 03:40:40,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 58 states have internal predecessors, (79), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-16 03:40:40,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 125 transitions. [2023-12-16 03:40:40,200 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 125 transitions. Word has length 141 [2023-12-16 03:40:40,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:40:40,200 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 125 transitions. [2023-12-16 03:40:40,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-16 03:40:40,201 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 125 transitions. [2023-12-16 03:40:40,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 03:40:40,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:40:40,202 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:40:40,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 03:40:40,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-16 03:40:40,404 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:40:40,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:40:40,405 INFO L85 PathProgramCache]: Analyzing trace with hash 302147654, now seen corresponding path program 1 times [2023-12-16 03:40:40,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:40:40,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568386931] [2023-12-16 03:40:40,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:40,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:40:40,439 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:40:40,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1120986156] [2023-12-16 03:40:40,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:40,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:40:40,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:40:40,445 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:40:40,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 03:40:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:40:40,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 03:40:40,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:40:40,922 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 30 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-12-16 03:40:40,922 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:40:41,160 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-12-16 03:40:41,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:40:41,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568386931] [2023-12-16 03:40:41,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:40:41,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120986156] [2023-12-16 03:40:41,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120986156] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 03:40:41,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 03:40:41,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-16 03:40:41,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241078564] [2023-12-16 03:40:41,161 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 03:40:41,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 03:40:41,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:40:41,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 03:40:41,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-12-16 03:40:41,162 INFO L87 Difference]: Start difference. First operand 83 states and 125 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 4 states have call successors, (42), 3 states have call predecessors, (42), 5 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2023-12-16 03:40:41,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:40:41,954 INFO L93 Difference]: Finished difference Result 480 states and 720 transitions. [2023-12-16 03:40:41,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-16 03:40:41,956 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 4 states have call successors, (42), 3 states have call predecessors, (42), 5 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) Word has length 141 [2023-12-16 03:40:41,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:40:41,962 INFO L225 Difference]: With dead ends: 480 [2023-12-16 03:40:41,962 INFO L226 Difference]: Without dead ends: 401 [2023-12-16 03:40:41,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=808, Unknown=0, NotChecked=0, Total=1122 [2023-12-16 03:40:41,967 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 670 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 03:40:41,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 1017 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 03:40:41,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-12-16 03:40:42,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 260. [2023-12-16 03:40:42,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 179 states have (on average 1.3519553072625698) internal successors, (242), 181 states have internal predecessors, (242), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-16 03:40:42,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 386 transitions. [2023-12-16 03:40:42,030 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 386 transitions. Word has length 141 [2023-12-16 03:40:42,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:40:42,032 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 386 transitions. [2023-12-16 03:40:42,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 4 states have call successors, (42), 3 states have call predecessors, (42), 5 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2023-12-16 03:40:42,032 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 386 transitions. [2023-12-16 03:40:42,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 03:40:42,035 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:40:42,035 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:40:42,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-16 03:40:42,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:40:42,244 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:40:42,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:40:42,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1304522185, now seen corresponding path program 1 times [2023-12-16 03:40:42,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:40:42,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184799147] [2023-12-16 03:40:42,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:42,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:40:42,305 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:40:42,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1737269153] [2023-12-16 03:40:42,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:42,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:40:42,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:40:42,306 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:40:42,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 03:40:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:40:42,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-16 03:40:42,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:40:43,326 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 326 proven. 138 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2023-12-16 03:40:43,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:40:44,133 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 18 proven. 42 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-12-16 03:40:44,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:40:44,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184799147] [2023-12-16 03:40:44,134 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:40:44,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737269153] [2023-12-16 03:40:44,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737269153] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 03:40:44,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 03:40:44,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9] total 22 [2023-12-16 03:40:44,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578497948] [2023-12-16 03:40:44,135 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 03:40:44,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-16 03:40:44,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:40:44,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-16 03:40:44,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2023-12-16 03:40:44,137 INFO L87 Difference]: Start difference. First operand 260 states and 386 transitions. Second operand has 22 states, 21 states have (on average 4.095238095238095) internal successors, (86), 20 states have internal predecessors, (86), 6 states have call successors, (39), 4 states have call predecessors, (39), 7 states have return successors, (40), 7 states have call predecessors, (40), 6 states have call successors, (40) [2023-12-16 03:40:49,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:40:49,226 INFO L93 Difference]: Finished difference Result 926 states and 1272 transitions. [2023-12-16 03:40:49,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-12-16 03:40:49,226 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.095238095238095) internal successors, (86), 20 states have internal predecessors, (86), 6 states have call successors, (39), 4 states have call predecessors, (39), 7 states have return successors, (40), 7 states have call predecessors, (40), 6 states have call successors, (40) Word has length 142 [2023-12-16 03:40:49,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:40:49,230 INFO L225 Difference]: With dead ends: 926 [2023-12-16 03:40:49,230 INFO L226 Difference]: Without dead ends: 708 [2023-12-16 03:40:49,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1294 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1066, Invalid=3094, Unknown=0, NotChecked=0, Total=4160 [2023-12-16 03:40:49,232 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 256 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 03:40:49,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 683 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 03:40:49,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2023-12-16 03:40:49,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 328. [2023-12-16 03:40:49,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 234 states have (on average 1.2735042735042734) internal successors, (298), 236 states have internal predecessors, (298), 72 states have call successors, (72), 21 states have call predecessors, (72), 21 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-16 03:40:49,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 442 transitions. [2023-12-16 03:40:49,269 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 442 transitions. Word has length 142 [2023-12-16 03:40:49,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:40:49,269 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 442 transitions. [2023-12-16 03:40:49,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.095238095238095) internal successors, (86), 20 states have internal predecessors, (86), 6 states have call successors, (39), 4 states have call predecessors, (39), 7 states have return successors, (40), 7 states have call predecessors, (40), 6 states have call successors, (40) [2023-12-16 03:40:49,269 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 442 transitions. [2023-12-16 03:40:49,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 03:40:49,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:40:49,270 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:40:49,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-16 03:40:49,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:40:49,476 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:40:49,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:40:49,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1215437749, now seen corresponding path program 1 times [2023-12-16 03:40:49,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:40:49,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523398263] [2023-12-16 03:40:49,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:49,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:40:49,521 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:40:49,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [937195448] [2023-12-16 03:40:49,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:40:49,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:40:49,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:40:49,523 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:40:49,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 03:40:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:40:49,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-16 03:40:49,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:40:50,198 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 188 proven. 102 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2023-12-16 03:40:50,198 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 03:41:52,961 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 03:41:52,969 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 03:41:53,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 03:41:54,169 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 03:41:54,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-16 03:41:54,180 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 03:41:54,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 03:41:54,180 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 143 with TraceHistMax 21,while TraceCheckSpWp was constructing backward predicates,while executing Executor. [2023-12-16 03:41:54,183 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 03:41:54,184 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 03:41:54,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:41:54 BoogieIcfgContainer [2023-12-16 03:41:54,186 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 03:41:54,186 INFO L158 Benchmark]: Toolchain (without parser) took 75988.00ms. Allocated memory was 264.2MB in the beginning and 320.9MB in the end (delta: 56.6MB). Free memory was 214.9MB in the beginning and 107.1MB in the end (delta: 107.8MB). Peak memory consumption was 165.8MB. Max. memory is 8.0GB. [2023-12-16 03:41:54,186 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 192.9MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 03:41:54,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.49ms. Allocated memory is still 264.2MB. Free memory was 214.9MB in the beginning and 198.5MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 03:41:54,187 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.11ms. Allocated memory is still 264.2MB. Free memory was 198.1MB in the beginning and 194.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 03:41:54,187 INFO L158 Benchmark]: Boogie Preprocessor took 55.24ms. Allocated memory is still 264.2MB. Free memory was 194.0MB in the beginning and 187.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 03:41:54,187 INFO L158 Benchmark]: RCFGBuilder took 482.45ms. Allocated memory is still 264.2MB. Free memory was 187.7MB in the beginning and 159.4MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-16 03:41:54,187 INFO L158 Benchmark]: TraceAbstraction took 75119.11ms. Allocated memory was 264.2MB in the beginning and 320.9MB in the end (delta: 56.6MB). Free memory was 158.7MB in the beginning and 107.1MB in the end (delta: 51.6MB). Peak memory consumption was 109.1MB. Max. memory is 8.0GB. [2023-12-16 03:41:54,189 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 192.9MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 279.49ms. Allocated memory is still 264.2MB. Free memory was 214.9MB in the beginning and 198.5MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.11ms. Allocated memory is still 264.2MB. Free memory was 198.1MB in the beginning and 194.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 55.24ms. Allocated memory is still 264.2MB. Free memory was 194.0MB in the beginning and 187.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 482.45ms. Allocated memory is still 264.2MB. Free memory was 187.7MB in the beginning and 159.4MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 75119.11ms. Allocated memory was 264.2MB in the beginning and 320.9MB in the end (delta: 56.6MB). Free memory was 158.7MB in the beginning and 107.1MB in the end (delta: 51.6MB). Peak memory consumption was 109.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 143 with TraceHistMax 21,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 75.1s, OverallIterations: 5, TraceHistogramMax: 21, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1001 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 980 mSDsluCounter, 1980 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1526 mSDsCounter, 356 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1813 IncrementalHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 356 mSolverCounterUnsat, 454 mSDtfsCounter, 1813 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 913 GetRequests, 817 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1563 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=328occurred in iteration=4, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 522 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 706 NumberOfCodeBlocks, 706 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 842 ConstructedInterpolants, 0 QuantifiedInterpolants, 5148 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1481 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 4800/5040 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