/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_floatingpointinfluence_has-floats_file-13.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 03:31:21,981 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 03:31:22,069 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 03:31:22,074 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 03:31:22,075 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 03:31:22,104 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 03:31:22,104 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 03:31:22,105 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 03:31:22,105 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 03:31:22,109 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 03:31:22,109 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 03:31:22,110 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 03:31:22,110 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 03:31:22,111 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 03:31:22,111 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 03:31:22,112 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 03:31:22,112 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 03:31:22,112 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 03:31:22,113 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 03:31:22,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 03:31:22,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 03:31:22,113 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 03:31:22,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 03:31:22,114 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 03:31:22,114 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 03:31:22,115 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 03:31:22,115 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 03:31:22,115 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 03:31:22,116 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 03:31:22,116 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 03:31:22,117 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 03:31:22,117 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 03:31:22,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:31:22,117 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 03:31:22,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 03:31:22,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 03:31:22,118 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 03:31:22,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 03:31:22,118 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 03:31:22,119 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 03:31:22,119 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 03:31:22,119 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 03:31:22,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 03:31:22,120 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 03:31:22,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 03:31:22,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 03:31:22,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 03:31:22,493 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 03:31:22,494 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 03:31:22,495 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-13.i [2023-12-16 03:31:24,087 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 03:31:24,481 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 03:31:24,482 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-13.i [2023-12-16 03:31:24,501 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10d53163a/a7593449bcc342a5aa67e363362e194b/FLAG4f31f4176 [2023-12-16 03:31:24,529 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10d53163a/a7593449bcc342a5aa67e363362e194b [2023-12-16 03:31:24,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 03:31:24,533 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 03:31:24,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 03:31:24,542 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 03:31:24,546 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 03:31:24,547 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:31:24" (1/1) ... [2023-12-16 03:31:24,553 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ac892cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:31:24, skipping insertion in model container [2023-12-16 03:31:24,553 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:31:24" (1/1) ... [2023-12-16 03:31:24,622 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 03:31:24,884 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_floatingpointinfluence_has-floats_file-13.i[917,930] [2023-12-16 03:31:24,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:31:24,960 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 03:31:24,968 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_floatingpointinfluence_has-floats_file-13.i[917,930] [2023-12-16 03:31:24,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:31:25,001 INFO L206 MainTranslator]: Completed translation [2023-12-16 03:31:25,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:31:25 WrapperNode [2023-12-16 03:31:25,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 03:31:25,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 03:31:25,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 03:31:25,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 03:31:25,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:31:25" (1/1) ... [2023-12-16 03:31:25,017 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:31:25" (1/1) ... [2023-12-16 03:31:25,046 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 105 [2023-12-16 03:31:25,046 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 03:31:25,047 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 03:31:25,047 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 03:31:25,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 03:31:25,087 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:31:25" (1/1) ... [2023-12-16 03:31:25,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:31:25" (1/1) ... [2023-12-16 03:31:25,090 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:31:25" (1/1) ... [2023-12-16 03:31:25,112 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 03:31:25,131 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:31:25" (1/1) ... [2023-12-16 03:31:25,132 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:31:25" (1/1) ... [2023-12-16 03:31:25,149 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:31:25" (1/1) ... [2023-12-16 03:31:25,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:31:25" (1/1) ... [2023-12-16 03:31:25,164 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:31:25" (1/1) ... [2023-12-16 03:31:25,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:31:25" (1/1) ... [2023-12-16 03:31:25,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 03:31:25,168 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 03:31:25,168 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 03:31:25,168 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 03:31:25,169 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:31:25" (1/1) ... [2023-12-16 03:31:25,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:31:25,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:31:25,205 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 03:31:25,224 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 03:31:25,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 03:31:25,234 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 03:31:25,234 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 03:31:25,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 03:31:25,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 03:31:25,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 03:31:25,295 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 03:31:25,297 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 03:31:25,524 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 03:31:25,561 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 03:31:25,561 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 03:31:25,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:31:25 BoogieIcfgContainer [2023-12-16 03:31:25,562 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 03:31:25,564 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 03:31:25,564 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 03:31:25,567 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 03:31:25,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:31:24" (1/3) ... [2023-12-16 03:31:25,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e1f3911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:31:25, skipping insertion in model container [2023-12-16 03:31:25,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:31:25" (2/3) ... [2023-12-16 03:31:25,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e1f3911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:31:25, skipping insertion in model container [2023-12-16 03:31:25,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:31:25" (3/3) ... [2023-12-16 03:31:25,569 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-13.i [2023-12-16 03:31:25,588 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 03:31:25,588 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 03:31:25,641 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 03:31:25,648 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;@6324e5ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 03:31:25,648 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 03:31:25,652 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 03:31:25,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 03:31:25,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:31:25,663 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:31:25,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:31:25,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:31:25,668 INFO L85 PathProgramCache]: Analyzing trace with hash 74501972, now seen corresponding path program 1 times [2023-12-16 03:31:25,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:31:25,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681723868] [2023-12-16 03:31:25,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:31:25,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:31:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:31:25,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:31:25,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681723868] [2023-12-16 03:31:25,893 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 03:31:25,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744414345] [2023-12-16 03:31:25,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:31:25,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:31:25,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:31:25,911 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 03:31:25,942 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 03:31:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:31:26,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 03:31:26,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:31:26,135 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-12-16 03:31:26,136 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:31:26,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744414345] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:31:26,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:31:26,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 03:31:26,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320064340] [2023-12-16 03:31:26,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:31:26,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 03:31:26,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:31:26,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 03:31:26,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 03:31:26,186 INFO L87 Difference]: Start difference. First operand has 43 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 03:31:26,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:31:26,224 INFO L93 Difference]: Finished difference Result 83 states and 143 transitions. [2023-12-16 03:31:26,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 03:31:26,227 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 94 [2023-12-16 03:31:26,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:31:26,234 INFO L225 Difference]: With dead ends: 83 [2023-12-16 03:31:26,234 INFO L226 Difference]: Without dead ends: 41 [2023-12-16 03:31:26,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 93 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 03:31:26,243 INFO L413 NwaCegarLoop]: 56 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, 56 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 03:31:26,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:31:26,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-12-16 03:31:26,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-12-16 03:31:26,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 03:31:26,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 59 transitions. [2023-12-16 03:31:26,294 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 59 transitions. Word has length 94 [2023-12-16 03:31:26,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:31:26,295 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 59 transitions. [2023-12-16 03:31:26,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 03:31:26,296 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2023-12-16 03:31:26,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 03:31:26,301 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:31:26,301 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:31:26,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 03:31:26,502 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 03:31:26,502 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:31:26,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:31:26,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1030474629, now seen corresponding path program 1 times [2023-12-16 03:31:26,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:31:26,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666372565] [2023-12-16 03:31:26,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:31:26,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:31:26,570 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:31:26,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [951018645] [2023-12-16 03:31:26,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:31:26,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:31:26,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:31:26,576 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 03:31:26,578 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 03:31:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:31:26,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-16 03:31:26,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:31:31,706 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 254 proven. 54 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-16 03:31:31,706 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:31:46,303 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 03:31:46,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:31:46,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666372565] [2023-12-16 03:31:46,303 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:31:46,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951018645] [2023-12-16 03:31:46,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951018645] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 03:31:46,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 03:31:46,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 20 [2023-12-16 03:31:46,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581144070] [2023-12-16 03:31:46,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:31:46,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 03:31:46,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:31:46,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 03:31:46,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=295, Unknown=1, NotChecked=0, Total=380 [2023-12-16 03:31:46,307 INFO L87 Difference]: Start difference. First operand 41 states and 59 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 03:31:49,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-16 03:31:51,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-16 03:31:53,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-16 03:31:58,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-16 03:31:58,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:31:58,964 INFO L93 Difference]: Finished difference Result 122 states and 160 transitions. [2023-12-16 03:31:58,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 03:31:58,965 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2023-12-16 03:31:58,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:31:58,968 INFO L225 Difference]: With dead ends: 122 [2023-12-16 03:31:58,968 INFO L226 Difference]: Without dead ends: 120 [2023-12-16 03:31:58,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=161, Invalid=594, Unknown=1, NotChecked=0, Total=756 [2023-12-16 03:31:58,969 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 129 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 47 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2023-12-16 03:31:58,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 284 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 159 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2023-12-16 03:31:58,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-12-16 03:31:58,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 79. [2023-12-16 03:31:58,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 53 states have internal predecessors, (63), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 03:31:58,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 111 transitions. [2023-12-16 03:31:58,991 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 111 transitions. Word has length 95 [2023-12-16 03:31:58,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:31:58,991 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 111 transitions. [2023-12-16 03:31:58,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 03:31:58,992 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2023-12-16 03:31:58,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 03:31:58,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:31:58,993 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:31:59,003 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 03:31:59,198 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 03:31:59,199 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:31:59,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:31:59,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1030415047, now seen corresponding path program 1 times [2023-12-16 03:31:59,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:31:59,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033389222] [2023-12-16 03:31:59,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:31:59,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:31:59,222 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:31:59,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [878129750] [2023-12-16 03:31:59,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:31:59,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:31:59,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:31:59,224 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 03:31:59,227 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 03:31:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:31:59,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-16 03:31:59,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:32:01,155 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 03:32:01,156 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:32:01,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:32:01,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033389222] [2023-12-16 03:32:01,156 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:32:01,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878129750] [2023-12-16 03:32:01,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878129750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:32:01,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:32:01,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 03:32:01,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046976152] [2023-12-16 03:32:01,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:32:01,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 03:32:01,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:32:01,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 03:32:01,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 03:32:01,158 INFO L87 Difference]: Start difference. First operand 79 states and 111 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 03:32:01,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:32:01,517 INFO L93 Difference]: Finished difference Result 243 states and 330 transitions. [2023-12-16 03:32:01,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 03:32:01,521 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2023-12-16 03:32:01,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:32:01,525 INFO L225 Difference]: With dead ends: 243 [2023-12-16 03:32:01,525 INFO L226 Difference]: Without dead ends: 241 [2023-12-16 03:32:01,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-16 03:32:01,526 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 146 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 03:32:01,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 409 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 03:32:01,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-12-16 03:32:01,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 195. [2023-12-16 03:32:01,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 124 states have (on average 1.2338709677419355) internal successors, (153), 128 states have internal predecessors, (153), 63 states have call successors, (63), 7 states have call predecessors, (63), 7 states have return successors, (63), 59 states have call predecessors, (63), 63 states have call successors, (63) [2023-12-16 03:32:01,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 279 transitions. [2023-12-16 03:32:01,566 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 279 transitions. Word has length 95 [2023-12-16 03:32:01,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:32:01,567 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 279 transitions. [2023-12-16 03:32:01,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 03:32:01,567 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 279 transitions. [2023-12-16 03:32:01,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 03:32:01,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:32:01,569 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:32:01,575 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 03:32:01,775 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 03:32:01,776 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:32:01,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:32:01,776 INFO L85 PathProgramCache]: Analyzing trace with hash 744532733, now seen corresponding path program 1 times [2023-12-16 03:32:01,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:32:01,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658778411] [2023-12-16 03:32:01,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:32:01,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:32:01,807 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:32:01,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [563902883] [2023-12-16 03:32:01,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:32:01,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:32:01,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:32:01,809 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 03:32:01,824 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 03:32:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:32:01,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-16 03:32:01,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:32:04,533 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 200 proven. 42 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2023-12-16 03:32:04,533 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:32:17,641 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 03:32:17,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:32:17,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658778411] [2023-12-16 03:32:17,643 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:32:17,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563902883] [2023-12-16 03:32:17,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563902883] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 03:32:17,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 03:32:17,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-12-16 03:32:17,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444698580] [2023-12-16 03:32:17,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:32:17,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 03:32:17,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:32:17,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 03:32:17,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-12-16 03:32:17,645 INFO L87 Difference]: Start difference. First operand 195 states and 279 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 03:32:18,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:32:18,903 INFO L93 Difference]: Finished difference Result 406 states and 552 transitions. [2023-12-16 03:32:18,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 03:32:18,908 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2023-12-16 03:32:18,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:32:18,912 INFO L225 Difference]: With dead ends: 406 [2023-12-16 03:32:18,912 INFO L226 Difference]: Without dead ends: 404 [2023-12-16 03:32:18,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2023-12-16 03:32:18,913 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 124 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 03:32:18,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 278 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 03:32:18,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2023-12-16 03:32:18,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 326. [2023-12-16 03:32:18,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 210 states have (on average 1.223809523809524) internal successors, (257), 216 states have internal predecessors, (257), 102 states have call successors, (102), 13 states have call predecessors, (102), 13 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-16 03:32:18,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 461 transitions. [2023-12-16 03:32:18,998 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 461 transitions. Word has length 95 [2023-12-16 03:32:18,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:32:18,999 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 461 transitions. [2023-12-16 03:32:18,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 03:32:18,999 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 461 transitions. [2023-12-16 03:32:19,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 03:32:19,001 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:32:19,001 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:32:19,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 03:32:19,201 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 03:32:19,202 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:32:19,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:32:19,203 INFO L85 PathProgramCache]: Analyzing trace with hash 744592315, now seen corresponding path program 1 times [2023-12-16 03:32:19,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:32:19,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789225679] [2023-12-16 03:32:19,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:32:19,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:32:19,228 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:32:19,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [487440055] [2023-12-16 03:32:19,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:32:19,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:32:19,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:32:19,238 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 03:32:19,240 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 03:32:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:32:19,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-16 03:32:19,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:32:20,626 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 200 proven. 42 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2023-12-16 03:32:20,626 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 03:32:33,951 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 03:32:33,959 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-16 03:32:33,978 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 03:32:33,978 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 03:32:34,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:32:34,161 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 96 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-12-3-2-3-4-3-4-2-4-2-3-2-2-2-1 context. [2023-12-16 03:32:34,169 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 03:32:34,174 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 03:32:34,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:32:34 BoogieIcfgContainer [2023-12-16 03:32:34,188 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 03:32:34,191 INFO L158 Benchmark]: Toolchain (without parser) took 69656.10ms. Allocated memory was 175.1MB in the beginning and 950.0MB in the end (delta: 774.9MB). Free memory was 130.8MB in the beginning and 863.9MB in the end (delta: -733.1MB). Peak memory consumption was 561.6MB. Max. memory is 8.0GB. [2023-12-16 03:32:34,192 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 175.1MB. Free memory is still 132.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 03:32:34,192 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.54ms. Allocated memory is still 175.1MB. Free memory was 130.8MB in the beginning and 118.0MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 03:32:34,192 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.62ms. Allocated memory is still 175.1MB. Free memory was 118.0MB in the beginning and 115.5MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 03:32:34,192 INFO L158 Benchmark]: Boogie Preprocessor took 120.60ms. Allocated memory is still 175.1MB. Free memory was 115.5MB in the beginning and 111.9MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 03:32:34,193 INFO L158 Benchmark]: RCFGBuilder took 393.83ms. Allocated memory is still 175.1MB. Free memory was 111.9MB in the beginning and 94.5MB in the end (delta: 17.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 03:32:34,193 INFO L158 Benchmark]: TraceAbstraction took 68624.27ms. Allocated memory was 175.1MB in the beginning and 950.0MB in the end (delta: 774.9MB). Free memory was 94.1MB in the beginning and 863.9MB in the end (delta: -769.8MB). Peak memory consumption was 524.9MB. Max. memory is 8.0GB. [2023-12-16 03:32:34,195 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 175.1MB. Free memory is still 132.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 460.54ms. Allocated memory is still 175.1MB. Free memory was 130.8MB in the beginning and 118.0MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.62ms. Allocated memory is still 175.1MB. Free memory was 118.0MB in the beginning and 115.5MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 120.60ms. Allocated memory is still 175.1MB. Free memory was 115.5MB in the beginning and 111.9MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 393.83ms. Allocated memory is still 175.1MB. Free memory was 111.9MB in the beginning and 94.5MB in the end (delta: 17.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 68624.27ms. Allocated memory was 175.1MB in the beginning and 950.0MB in the end (delta: 774.9MB). Free memory was 94.1MB in the beginning and 863.9MB in the end (delta: -769.8MB). Peak memory consumption was 524.9MB. 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 96 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-12-3-2-3-4-3-4-2-4-2-3-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 68.5s, OverallIterations: 5, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 399 SdHoareTripleChecker+Valid, 12.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 399 mSDsluCounter, 1027 SdHoareTripleChecker+Invalid, 12.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 687 mSDsCounter, 90 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 497 IncrementalHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 90 mSolverCounterUnsat, 340 mSDtfsCounter, 497 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 580 GetRequests, 528 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=326occurred in iteration=4, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 165 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 37.2s InterpolantComputationTime, 473 NumberOfCodeBlocks, 473 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 563 ConstructedInterpolants, 4 QuantifiedInterpolants, 1867 SizeOfPredicates, 48 NumberOfNonLiveVariables, 904 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 2424/2520 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