/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-8.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 21:05:14,933 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 21:05:14,995 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 21:05:14,999 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 21:05:14,999 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 21:05:15,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 21:05:15,021 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 21:05:15,021 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 21:05:15,022 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 21:05:15,026 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 21:05:15,026 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 21:05:15,027 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 21:05:15,027 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 21:05:15,028 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 21:05:15,028 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 21:05:15,028 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 21:05:15,028 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 21:05:15,029 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 21:05:15,029 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 21:05:15,029 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 21:05:15,029 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 21:05:15,029 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 21:05:15,030 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 21:05:15,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 21:05:15,031 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 21:05:15,031 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 21:05:15,031 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 21:05:15,031 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 21:05:15,031 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 21:05:15,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 21:05:15,032 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 21:05:15,032 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 21:05:15,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:05:15,033 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 21:05:15,033 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 21:05:15,033 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 21:05:15,033 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 21:05:15,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 21:05:15,033 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 21:05:15,033 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 21:05:15,033 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 21:05:15,034 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 21:05:15,034 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 21:05:15,034 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 21:05:15,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 21:05:15,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 21:05:15,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 21:05:15,233 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 21:05:15,235 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 21:05:15,236 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-8.i [2023-12-15 21:05:16,274 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 21:05:16,428 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 21:05:16,429 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-8.i [2023-12-15 21:05:16,435 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6adde0db5/ba32bfecc4594aef8ec4e063e77e7f69/FLAG42b3cd579 [2023-12-15 21:05:16,444 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6adde0db5/ba32bfecc4594aef8ec4e063e77e7f69 [2023-12-15 21:05:16,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 21:05:16,446 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 21:05:16,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 21:05:16,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 21:05:16,454 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 21:05:16,455 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:05:16" (1/1) ... [2023-12-15 21:05:16,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50c0fc7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:05:16, skipping insertion in model container [2023-12-15 21:05:16,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:05:16" (1/1) ... [2023-12-15 21:05:16,489 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 21:05:16,617 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_operatoramount_amount100_file-8.i[915,928] [2023-12-15 21:05:16,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:05:16,715 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 21:05:16,727 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_operatoramount_amount100_file-8.i[915,928] [2023-12-15 21:05:16,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:05:16,780 INFO L206 MainTranslator]: Completed translation [2023-12-15 21:05:16,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:05:16 WrapperNode [2023-12-15 21:05:16,781 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 21:05:16,782 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 21:05:16,782 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 21:05:16,782 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 21:05:16,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:05:16" (1/1) ... [2023-12-15 21:05:16,805 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:05:16" (1/1) ... [2023-12-15 21:05:16,834 INFO L138 Inliner]: procedures = 26, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 254 [2023-12-15 21:05:16,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 21:05:16,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 21:05:16,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 21:05:16,835 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 21:05:16,844 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:05:16" (1/1) ... [2023-12-15 21:05:16,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:05:16" (1/1) ... [2023-12-15 21:05:16,848 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:05:16" (1/1) ... [2023-12-15 21:05:16,865 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]. [2023-12-15 21:05:16,865 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:05:16" (1/1) ... [2023-12-15 21:05:16,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:05:16" (1/1) ... [2023-12-15 21:05:16,877 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:05:16" (1/1) ... [2023-12-15 21:05:16,880 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:05:16" (1/1) ... [2023-12-15 21:05:16,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:05:16" (1/1) ... [2023-12-15 21:05:16,884 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:05:16" (1/1) ... [2023-12-15 21:05:16,886 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 21:05:16,887 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 21:05:16,887 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 21:05:16,887 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 21:05:16,888 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:05:16" (1/1) ... [2023-12-15 21:05:16,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:05:16,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:05:16,920 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) [2023-12-15 21:05:16,936 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 [2023-12-15 21:05:16,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 21:05:16,940 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 21:05:16,940 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 21:05:16,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 21:05:16,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 21:05:16,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 21:05:16,997 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 21:05:16,999 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 21:05:17,312 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 21:05:17,347 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 21:05:17,347 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 21:05:17,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:05:17 BoogieIcfgContainer [2023-12-15 21:05:17,347 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 21:05:17,349 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 21:05:17,349 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 21:05:17,351 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 21:05:17,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:05:16" (1/3) ... [2023-12-15 21:05:17,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48fcc55b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:05:17, skipping insertion in model container [2023-12-15 21:05:17,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:05:16" (2/3) ... [2023-12-15 21:05:17,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48fcc55b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:05:17, skipping insertion in model container [2023-12-15 21:05:17,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:05:17" (3/3) ... [2023-12-15 21:05:17,355 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-8.i [2023-12-15 21:05:17,366 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 21:05:17,366 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 21:05:17,408 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 21:05:17,412 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;@3b051c0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 21:05:17,413 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 21:05:17,416 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 65 states have (on average 1.523076923076923) internal successors, (99), 66 states have internal predecessors, (99), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-15 21:05:17,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-15 21:05:17,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:05:17,429 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:05:17,429 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:05:17,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:05:17,432 INFO L85 PathProgramCache]: Analyzing trace with hash 946490622, now seen corresponding path program 1 times [2023-12-15 21:05:17,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:05:17,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278735246] [2023-12-15 21:05:17,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:05:17,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:05:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:05:17,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:05:17,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278735246] [2023-12-15 21:05:17,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-15 21:05:17,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124276104] [2023-12-15 21:05:17,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:05:17,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:05:17,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:05:17,619 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) [2023-12-15 21:05:17,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 21:05:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:05:17,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 21:05:17,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:05:17,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 1682 trivial. 0 not checked. [2023-12-15 21:05:17,843 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:05:17,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124276104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:05:17,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:05:17,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 21:05:17,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866895252] [2023-12-15 21:05:17,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:05:17,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 21:05:17,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:05:17,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 21:05:17,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:05:17,889 INFO L87 Difference]: Start difference. First operand has 98 states, 65 states have (on average 1.523076923076923) internal successors, (99), 66 states have internal predecessors, (99), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-15 21:05:17,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:05:17,937 INFO L93 Difference]: Finished difference Result 193 states and 346 transitions. [2023-12-15 21:05:17,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 21:05:17,940 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 2 states have call successors, (30) Word has length 194 [2023-12-15 21:05:17,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:05:17,946 INFO L225 Difference]: With dead ends: 193 [2023-12-15 21:05:17,946 INFO L226 Difference]: Without dead ends: 96 [2023-12-15 21:05:17,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:05:17,954 INFO L413 NwaCegarLoop]: 151 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, 151 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 [2023-12-15 21:05:17,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 151 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:05:17,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-15 21:05:17,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-12-15 21:05:17,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 64 states have (on average 1.46875) internal successors, (94), 64 states have internal predecessors, (94), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-15 21:05:17,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 154 transitions. [2023-12-15 21:05:17,988 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 154 transitions. Word has length 194 [2023-12-15 21:05:17,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:05:17,988 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 154 transitions. [2023-12-15 21:05:17,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-15 21:05:17,989 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 154 transitions. [2023-12-15 21:05:17,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-15 21:05:17,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:05:17,991 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:05:17,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 21:05:18,192 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 [2023-12-15 21:05:18,192 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:05:18,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:05:18,193 INFO L85 PathProgramCache]: Analyzing trace with hash -901422470, now seen corresponding path program 1 times [2023-12-15 21:05:18,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:05:18,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330848408] [2023-12-15 21:05:18,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:05:18,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:05:18,242 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:05:18,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [571982084] [2023-12-15 21:05:18,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:05:18,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:05:18,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:05:18,247 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) [2023-12-15 21:05:18,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 21:05:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:05:18,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 21:05:18,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:05:18,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-12-15 21:05:18,423 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:05:18,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:05:18,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330848408] [2023-12-15 21:05:18,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:05:18,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571982084] [2023-12-15 21:05:18,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571982084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:05:18,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:05:18,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 21:05:18,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574279177] [2023-12-15 21:05:18,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:05:18,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 21:05:18,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:05:18,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 21:05:18,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:05:18,428 INFO L87 Difference]: Start difference. First operand 96 states and 154 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-15 21:05:18,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:05:18,500 INFO L93 Difference]: Finished difference Result 286 states and 460 transitions. [2023-12-15 21:05:18,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 21:05:18,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 194 [2023-12-15 21:05:18,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:05:18,507 INFO L225 Difference]: With dead ends: 286 [2023-12-15 21:05:18,507 INFO L226 Difference]: Without dead ends: 191 [2023-12-15 21:05:18,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:05:18,510 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 146 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:05:18,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 422 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:05:18,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-12-15 21:05:18,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 107. [2023-12-15 21:05:18,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 75 states have (on average 1.48) internal successors, (111), 75 states have internal predecessors, (111), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-15 21:05:18,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 171 transitions. [2023-12-15 21:05:18,534 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 171 transitions. Word has length 194 [2023-12-15 21:05:18,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:05:18,536 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 171 transitions. [2023-12-15 21:05:18,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-15 21:05:18,536 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 171 transitions. [2023-12-15 21:05:18,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-15 21:05:18,538 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:05:18,539 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:05:18,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 21:05:18,746 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 [2023-12-15 21:05:18,747 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:05:18,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:05:18,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1488228484, now seen corresponding path program 1 times [2023-12-15 21:05:18,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:05:18,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299358398] [2023-12-15 21:05:18,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:05:18,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:05:18,830 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:05:18,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [914825801] [2023-12-15 21:05:18,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:05:18,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:05:18,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:05:18,831 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) [2023-12-15 21:05:18,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 21:05:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:05:18,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 21:05:18,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:05:18,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-12-15 21:05:18,984 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:05:18,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:05:18,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299358398] [2023-12-15 21:05:18,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:05:18,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914825801] [2023-12-15 21:05:18,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914825801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:05:18,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:05:18,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 21:05:18,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130291510] [2023-12-15 21:05:18,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:05:18,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 21:05:18,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:05:18,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 21:05:18,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:05:18,987 INFO L87 Difference]: Start difference. First operand 107 states and 171 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-15 21:05:19,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:05:19,023 INFO L93 Difference]: Finished difference Result 285 states and 459 transitions. [2023-12-15 21:05:19,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 21:05:19,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 194 [2023-12-15 21:05:19,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:05:19,027 INFO L225 Difference]: With dead ends: 285 [2023-12-15 21:05:19,028 INFO L226 Difference]: Without dead ends: 179 [2023-12-15 21:05:19,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:05:19,030 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 146 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:05:19,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 373 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:05:19,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-12-15 21:05:19,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 96. [2023-12-15 21:05:19,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 64 states have (on average 1.4375) internal successors, (92), 64 states have internal predecessors, (92), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-15 21:05:19,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 152 transitions. [2023-12-15 21:05:19,049 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 152 transitions. Word has length 194 [2023-12-15 21:05:19,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:05:19,051 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 152 transitions. [2023-12-15 21:05:19,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-15 21:05:19,051 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 152 transitions. [2023-12-15 21:05:19,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-15 21:05:19,057 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:05:19,057 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:05:19,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-15 21:05:19,261 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 [2023-12-15 21:05:19,263 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:05:19,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:05:19,263 INFO L85 PathProgramCache]: Analyzing trace with hash 102650465, now seen corresponding path program 1 times [2023-12-15 21:05:19,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:05:19,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197890019] [2023-12-15 21:05:19,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:05:19,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:05:19,302 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:05:19,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557518313] [2023-12-15 21:05:19,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:05:19,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:05:19,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:05:19,309 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) [2023-12-15 21:05:19,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 21:05:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:05:19,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 21:05:19,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:05:19,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-12-15 21:05:19,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:05:19,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:05:19,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197890019] [2023-12-15 21:05:19,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:05:19,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557518313] [2023-12-15 21:05:19,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557518313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:05:19,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:05:19,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 21:05:19,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089429347] [2023-12-15 21:05:19,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:05:19,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 21:05:19,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:05:19,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 21:05:19,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:05:19,619 INFO L87 Difference]: Start difference. First operand 96 states and 152 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-15 21:05:19,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:05:19,662 INFO L93 Difference]: Finished difference Result 286 states and 454 transitions. [2023-12-15 21:05:19,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 21:05:19,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 195 [2023-12-15 21:05:19,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:05:19,664 INFO L225 Difference]: With dead ends: 286 [2023-12-15 21:05:19,664 INFO L226 Difference]: Without dead ends: 191 [2023-12-15 21:05:19,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:05:19,666 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 49 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:05:19,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 273 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:05:19,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-12-15 21:05:19,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 188. [2023-12-15 21:05:19,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 125 states have (on average 1.424) internal successors, (178), 125 states have internal predecessors, (178), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-15 21:05:19,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 298 transitions. [2023-12-15 21:05:19,689 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 298 transitions. Word has length 195 [2023-12-15 21:05:19,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:05:19,690 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 298 transitions. [2023-12-15 21:05:19,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-15 21:05:19,690 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 298 transitions. [2023-12-15 21:05:19,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-12-15 21:05:19,692 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:05:19,692 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:05:19,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 21:05:19,896 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 [2023-12-15 21:05:19,896 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:05:19,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:05:19,897 INFO L85 PathProgramCache]: Analyzing trace with hash 716802655, now seen corresponding path program 1 times [2023-12-15 21:05:19,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:05:19,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901046924] [2023-12-15 21:05:19,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:05:19,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:05:19,934 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:05:19,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1574452407] [2023-12-15 21:05:19,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:05:19,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:05:19,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:05:19,936 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) [2023-12-15 21:05:19,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 21:05:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:05:20,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:05:20,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:05:20,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-12-15 21:05:20,255 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:05:20,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:05:20,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901046924] [2023-12-15 21:05:20,256 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:05:20,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574452407] [2023-12-15 21:05:20,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574452407] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:05:20,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:05:20,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 21:05:20,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076835376] [2023-12-15 21:05:20,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:05:20,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:05:20,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:05:20,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:05:20,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:05:20,257 INFO L87 Difference]: Start difference. First operand 188 states and 298 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-15 21:05:20,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:05:20,420 INFO L93 Difference]: Finished difference Result 473 states and 747 transitions. [2023-12-15 21:05:20,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 21:05:20,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 196 [2023-12-15 21:05:20,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:05:20,424 INFO L225 Difference]: With dead ends: 473 [2023-12-15 21:05:20,424 INFO L226 Difference]: Without dead ends: 286 [2023-12-15 21:05:20,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:05:20,425 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 215 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:05:20,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 454 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:05:20,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-12-15 21:05:20,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 201. [2023-12-15 21:05:20,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 138 states have (on average 1.4130434782608696) internal successors, (195), 138 states have internal predecessors, (195), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-15 21:05:20,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 315 transitions. [2023-12-15 21:05:20,442 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 315 transitions. Word has length 196 [2023-12-15 21:05:20,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:05:20,442 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 315 transitions. [2023-12-15 21:05:20,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-15 21:05:20,443 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 315 transitions. [2023-12-15 21:05:20,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-12-15 21:05:20,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:05:20,445 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:05:20,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-15 21:05:20,649 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 [2023-12-15 21:05:20,649 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:05:20,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:05:20,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1396861025, now seen corresponding path program 1 times [2023-12-15 21:05:20,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:05:20,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797157310] [2023-12-15 21:05:20,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:05:20,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:05:20,671 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:05:20,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [386399992] [2023-12-15 21:05:20,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:05:20,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:05:20,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:05:20,673 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:05:20,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 21:05:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:05:20,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-15 21:05:20,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:05:46,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1053 proven. 180 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2023-12-15 21:05:46,931 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:06:02,069 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse25 (* c_~var_1_30~0 2)) (.cse11 (mod c_~var_1_22~0 256))) (let ((.cse1 (+ c_~var_1_30~0 .cse11)) (.cse3 (+ c_~var_1_30~0 255)) (.cse6 (+ .cse25 c_~var_1_8~0)) (.cse14 (< 254 .cse11)) (.cse5 (* c_~var_1_4~0 2))) (and (or (< 0 (+ c_~var_1_4~0 1)) (and (forall ((v_y_12 Int) (v_~var_1_7~0_8 Int)) (let ((.cse4 (mod v_~var_1_7~0_8 c_~var_1_4~0))) (let ((.cse0 (+ .cse4 c_~var_1_4~0)) (.cse2 (+ (* v_y_12 256) .cse4 c_~var_1_4~0))) (or (< .cse0 c_~var_1_30~0) (< 0 (+ v_~var_1_7~0_8 1)) (< .cse1 .cse2) (< .cse3 .cse0) (= .cse4 0) (< (+ (* .cse4 2) v_~var_1_7~0_8 .cse5) .cse6) (< .cse2 c_~var_1_30~0))))) (forall ((v_y_12 Int) (v_~var_1_7~0_8 Int)) (let ((.cse7 (mod v_~var_1_7~0_8 c_~var_1_4~0))) (let ((.cse8 (+ (* v_y_12 256) .cse7))) (or (< .cse7 c_~var_1_30~0) (= .cse7 0) (< v_~var_1_7~0_8 0) (< .cse3 .cse7) (< .cse1 .cse8) (< .cse8 c_~var_1_30~0) (< (+ (* .cse7 2) v_~var_1_7~0_8) .cse6))))) (or (let ((.cse9 (* 2 .cse11))) (and (forall ((v_y_12 Int)) (let ((.cse10 (* v_y_12 256))) (or (forall ((v_~var_1_7~0_8 Int)) (or (< (+ .cse9 v_~var_1_7~0_8) (+ c_~var_1_8~0 (* v_y_12 512))) (not (= (+ .cse10 (mod v_~var_1_7~0_8 c_~var_1_4~0)) .cse1)) (< v_~var_1_7~0_8 0))) (< (+ .cse10 255) .cse11) (< .cse11 .cse10) (= .cse10 .cse1)))) (forall ((v_y_12 Int)) (let ((.cse13 (* v_y_12 256))) (or (forall ((v_~var_1_7~0_8 Int)) (let ((.cse12 (mod v_~var_1_7~0_8 c_~var_1_4~0))) (or (< (+ .cse9 v_~var_1_7~0_8) (+ c_~var_1_8~0 (* v_y_12 512))) (< 0 (+ v_~var_1_7~0_8 1)) (= .cse12 0) (not (= .cse1 (+ .cse13 .cse12 c_~var_1_4~0)))))) (< (+ .cse13 255) .cse11) (< .cse11 .cse13)))))) .cse14))) (or (< c_~var_1_4~0 0) (let ((.cse17 (+ c_~var_1_4~0 c_~var_1_30~0 255)) (.cse16 (+ c_~var_1_4~0 c_~var_1_30~0)) (.cse19 (+ c_~var_1_4~0 c_~var_1_30~0 .cse11)) (.cse18 (+ .cse25 c_~var_1_8~0 .cse5))) (and (or (forall ((v_y_12 Int) (v_~var_1_7~0_8 Int)) (let ((.cse15 (mod v_~var_1_7~0_8 c_~var_1_4~0))) (or (< 0 (+ v_~var_1_7~0_8 1)) (< .cse15 .cse16) (< .cse17 .cse15) (= .cse15 0) (< (+ (* .cse15 2) v_~var_1_7~0_8) .cse18) (not (= (+ (* v_y_12 256) .cse15) .cse19))))) .cse14) (forall ((v_~var_1_7~0_8 Int)) (let ((.cse20 (mod v_~var_1_7~0_8 c_~var_1_4~0))) (or (< .cse20 c_~var_1_30~0) (= .cse20 0) (forall ((v_y_12 Int)) (let ((.cse21 (+ (* v_y_12 256) .cse20))) (or (< .cse1 .cse21) (< .cse21 c_~var_1_30~0)))) (< v_~var_1_7~0_8 0) (< .cse3 .cse20) (< (+ (* .cse20 2) v_~var_1_7~0_8) .cse6)))) (or (forall ((v_y_12 Int) (v_~var_1_7~0_8 Int)) (let ((.cse22 (mod v_~var_1_7~0_8 c_~var_1_4~0))) (or (< .cse22 c_~var_1_30~0) (= .cse22 0) (not (= (+ (* v_y_12 256) .cse22) .cse1)) (< v_~var_1_7~0_8 0) (< .cse3 .cse22) (< (+ (* .cse22 2) v_~var_1_7~0_8) .cse6)))) .cse14) (forall ((v_~var_1_7~0_8 Int)) (let ((.cse23 (mod v_~var_1_7~0_8 c_~var_1_4~0))) (or (< 0 (+ v_~var_1_7~0_8 1)) (< .cse23 .cse16) (< .cse17 .cse23) (= .cse23 0) (forall ((v_y_12 Int)) (let ((.cse24 (+ (* v_y_12 256) .cse23))) (or (< .cse24 .cse16) (< .cse19 .cse24)))) (< (+ (* .cse23 2) v_~var_1_7~0_8) .cse18)))))))))) is different from false [2023-12-15 21:06:13,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:06:13,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797157310] [2023-12-15 21:06:13,143 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:06:13,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386399992] [2023-12-15 21:06:13,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386399992] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 21:06:13,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:06:13,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-12-15 21:06:13,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006349587] [2023-12-15 21:06:13,144 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-15 21:06:13,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-15 21:06:13,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:06:13,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-15 21:06:13,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=564, Unknown=4, NotChecked=48, Total=702 [2023-12-15 21:06:13,145 INFO L87 Difference]: Start difference. First operand 201 states and 315 transitions. Second operand has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 18 states have internal predecessors, (67), 4 states have call successors, (30), 4 states have call predecessors, (30), 7 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2023-12-15 21:06:15,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-15 21:06:19,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-15 21:06:27,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] Received shutdown request... [2023-12-15 21:06:32,329 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 21:06:32,330 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 [2023-12-15 21:06:32,825 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 [0] [2023-12-15 21:06:32,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 21:06:32,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 48.1s TimeCoverageRelationStatistics Valid=113, Invalid=699, Unknown=4, NotChecked=54, Total=870 [2023-12-15 21:06:32,828 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2023-12-15 21:06:32,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 95 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 216 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time] [2023-12-15 21:06:32,829 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 21:06:32,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-15 21:06:33,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:06:33,031 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (201states) and FLOYD_HOARE automaton (currently 12 states, 19 states before enhancement),while ReachableStatesComputation was computing reachable states (24 states constructed, input type IntersectNwa). [2023-12-15 21:06:33,034 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-15 21:06:33,036 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 21:06:33,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:06:33 BoogieIcfgContainer [2023-12-15 21:06:33,037 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 21:06:33,037 INFO L158 Benchmark]: Toolchain (without parser) took 76591.27ms. Allocated memory was 371.2MB in the beginning and 457.2MB in the end (delta: 86.0MB). Free memory was 318.6MB in the beginning and 238.4MB in the end (delta: 80.2MB). Peak memory consumption was 167.1MB. Max. memory is 8.0GB. [2023-12-15 21:06:33,037 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 226.5MB. Free memory is still 176.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 21:06:33,037 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.85ms. Allocated memory is still 371.2MB. Free memory was 318.4MB in the beginning and 302.2MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-15 21:06:33,038 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.33ms. Allocated memory is still 371.2MB. Free memory was 302.2MB in the beginning and 298.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-15 21:06:33,038 INFO L158 Benchmark]: Boogie Preprocessor took 51.52ms. Allocated memory is still 371.2MB. Free memory was 298.1MB in the beginning and 292.4MB in the end (delta: 5.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 21:06:33,038 INFO L158 Benchmark]: RCFGBuilder took 460.26ms. Allocated memory is still 371.2MB. Free memory was 292.4MB in the beginning and 329.3MB in the end (delta: -36.9MB). Peak memory consumption was 27.8MB. Max. memory is 8.0GB. [2023-12-15 21:06:33,038 INFO L158 Benchmark]: TraceAbstraction took 75688.41ms. Allocated memory was 371.2MB in the beginning and 457.2MB in the end (delta: 86.0MB). Free memory was 328.3MB in the beginning and 238.4MB in the end (delta: 89.9MB). Peak memory consumption was 176.0MB. Max. memory is 8.0GB. [2023-12-15 21:06:33,039 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 226.5MB. Free memory is still 176.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 334.85ms. Allocated memory is still 371.2MB. Free memory was 318.4MB in the beginning and 302.2MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.33ms. Allocated memory is still 371.2MB. Free memory was 302.2MB in the beginning and 298.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 51.52ms. Allocated memory is still 371.2MB. Free memory was 298.1MB in the beginning and 292.4MB in the end (delta: 5.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 460.26ms. Allocated memory is still 371.2MB. Free memory was 292.4MB in the beginning and 329.3MB in the end (delta: -36.9MB). Peak memory consumption was 27.8MB. Max. memory is 8.0GB. * TraceAbstraction took 75688.41ms. Allocated memory was 371.2MB in the beginning and 457.2MB in the end (delta: 86.0MB). Free memory was 328.3MB in the beginning and 238.4MB in the end (delta: 89.9MB). Peak memory consumption was 176.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was constructing difference of abstraction (201states) and FLOYD_HOARE automaton (currently 12 states, 19 states before enhancement),while ReachableStatesComputation was computing reachable states (24 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 98 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 75.6s, OverallIterations: 6, TraceHistogramMax: 30, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 20.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 562 SdHoareTripleChecker+Valid, 14.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 562 mSDsluCounter, 1768 SdHoareTripleChecker+Invalid, 14.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 671 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 410 IncrementalHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 1097 mSDtfsCounter, 410 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1196 GetRequests, 1163 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 48.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=201occurred in iteration=5, InterpolantAutomatonStates: 15, 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, 5 MinimizatonAttempts, 255 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 52.9s InterpolantComputationTime, 1363 NumberOfCodeBlocks, 1363 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1163 ConstructedInterpolants, 14 QuantifiedInterpolants, 5949 SizeOfPredicates, 20 NumberOfNonLiveVariables, 2685 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 10260/10440 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