/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_loopvsstraightlinecode_100-1loop_file-14.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 11:12:37,579 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 11:12:37,674 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 11:12:37,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 11:12:37,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 11:12:37,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 11:12:37,711 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 11:12:37,712 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 11:12:37,713 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 11:12:37,720 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 11:12:37,720 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 11:12:37,720 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 11:12:37,721 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 11:12:37,721 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 11:12:37,721 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 11:12:37,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 11:12:37,722 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 11:12:37,722 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 11:12:37,723 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 11:12:37,723 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 11:12:37,723 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 11:12:37,723 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 11:12:37,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 11:12:37,724 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 11:12:37,724 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 11:12:37,724 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 11:12:37,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 11:12:37,725 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 11:12:37,726 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 11:12:37,726 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 11:12:37,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 11:12:37,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 11:12:37,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 11:12:37,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 11:12:37,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 11:12:37,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 11:12:37,728 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 11:12:37,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 11:12:37,728 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 11:12:37,729 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 11:12:37,729 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 11:12:37,730 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 11:12:37,730 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 11:12:37,730 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 11:12:37,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 11:12:38,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 11:12:38,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 11:12:38,006 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 11:12:38,007 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 11:12:38,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-14.i [2023-12-19 11:12:39,252 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 11:12:39,459 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 11:12:39,460 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-14.i [2023-12-19 11:12:39,471 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50b351352/324f13ef3f9841829f98cdf5db500314/FLAGa49167bf5 [2023-12-19 11:12:39,484 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50b351352/324f13ef3f9841829f98cdf5db500314 [2023-12-19 11:12:39,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 11:12:39,487 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 11:12:39,488 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 11:12:39,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 11:12:39,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 11:12:39,493 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:12:39" (1/1) ... [2023-12-19 11:12:39,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c81eb9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:12:39, skipping insertion in model container [2023-12-19 11:12:39,494 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:12:39" (1/1) ... [2023-12-19 11:12:39,534 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 11:12:39,670 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-14.i[916,929] [2023-12-19 11:12:39,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 11:12:39,759 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 11:12:39,769 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-14.i[916,929] [2023-12-19 11:12:39,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 11:12:39,862 INFO L206 MainTranslator]: Completed translation [2023-12-19 11:12:39,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:12:39 WrapperNode [2023-12-19 11:12:39,863 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 11:12:39,864 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 11:12:39,864 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 11:12:39,864 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 11:12:39,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:12:39" (1/1) ... [2023-12-19 11:12:39,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:12:39" (1/1) ... [2023-12-19 11:12:39,927 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 290 [2023-12-19 11:12:39,928 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 11:12:39,929 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 11:12:39,929 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 11:12:39,929 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 11:12:39,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:12:39" (1/1) ... [2023-12-19 11:12:39,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:12:39" (1/1) ... [2023-12-19 11:12:39,944 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:12:39" (1/1) ... [2023-12-19 11:12:39,963 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-19 11:12:39,964 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:12:39" (1/1) ... [2023-12-19 11:12:39,964 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:12:39" (1/1) ... [2023-12-19 11:12:39,980 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:12:39" (1/1) ... [2023-12-19 11:12:39,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:12:39" (1/1) ... [2023-12-19 11:12:39,986 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:12:39" (1/1) ... [2023-12-19 11:12:39,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:12:39" (1/1) ... [2023-12-19 11:12:39,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 11:12:39,995 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 11:12:39,995 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 11:12:39,995 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 11:12:39,996 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:12:39" (1/1) ... [2023-12-19 11:12:40,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 11:12:40,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:12:40,041 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 11:12:40,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 11:12:40,074 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 11:12:40,074 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 11:12:40,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 11:12:40,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 11:12:40,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 11:12:40,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 11:12:40,184 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 11:12:40,189 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 11:12:40,718 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 11:12:40,753 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 11:12:40,754 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 11:12:40,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:12:40 BoogieIcfgContainer [2023-12-19 11:12:40,754 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 11:12:40,757 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 11:12:40,757 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 11:12:40,760 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 11:12:40,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:12:39" (1/3) ... [2023-12-19 11:12:40,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a64babe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:12:40, skipping insertion in model container [2023-12-19 11:12:40,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:12:39" (2/3) ... [2023-12-19 11:12:40,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a64babe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:12:40, skipping insertion in model container [2023-12-19 11:12:40,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:12:40" (3/3) ... [2023-12-19 11:12:40,763 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-14.i [2023-12-19 11:12:40,779 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 11:12:40,779 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 11:12:40,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 11:12:40,860 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;@40fbdea1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 11:12:40,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 11:12:40,865 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 69 states have (on average 1.5507246376811594) internal successors, (107), 70 states have internal predecessors, (107), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-19 11:12:40,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-19 11:12:40,901 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:12:40,902 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:12:40,903 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:12:40,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:12:40,911 INFO L85 PathProgramCache]: Analyzing trace with hash 781656204, now seen corresponding path program 1 times [2023-12-19 11:12:40,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:12:40,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615574693] [2023-12-19 11:12:40,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:12:40,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:12:41,139 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:12:41,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1698168372] [2023-12-19 11:12:41,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:12:41,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:12:41,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:12:41,145 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 11:12:41,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 11:12:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:12:41,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 11:12:41,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:12:41,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2023-12-19 11:12:41,502 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 11:12:41,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:12:41,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615574693] [2023-12-19 11:12:41,503 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:12:41,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698168372] [2023-12-19 11:12:41,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698168372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:12:41,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:12:41,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 11:12:41,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628337169] [2023-12-19 11:12:41,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:12:41,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 11:12:41,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:12:41,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 11:12:41,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 11:12:41,551 INFO L87 Difference]: Start difference. First operand has 103 states, 69 states have (on average 1.5507246376811594) internal successors, (107), 70 states have internal predecessors, (107), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-12-19 11:12:41,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:12:41,664 INFO L93 Difference]: Finished difference Result 205 states and 368 transitions. [2023-12-19 11:12:41,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 11:12:41,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2023-12-19 11:12:41,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:12:41,678 INFO L225 Difference]: With dead ends: 205 [2023-12-19 11:12:41,678 INFO L226 Difference]: Without dead ends: 101 [2023-12-19 11:12:41,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 11:12:41,689 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 11 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 11:12:41,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 600 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 11:12:41,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-12-19 11:12:41,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-12-19 11:12:41,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 68 states have (on average 1.4705882352941178) internal successors, (100), 68 states have internal predecessors, (100), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-19 11:12:41,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 162 transitions. [2023-12-19 11:12:41,749 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 162 transitions. Word has length 198 [2023-12-19 11:12:41,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:12:41,752 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 162 transitions. [2023-12-19 11:12:41,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-12-19 11:12:41,753 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 162 transitions. [2023-12-19 11:12:41,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-12-19 11:12:41,761 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:12:41,761 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:12:41,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 11:12:41,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-19 11:12:41,975 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:12:41,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:12:41,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1649297264, now seen corresponding path program 1 times [2023-12-19 11:12:41,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:12:41,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743905452] [2023-12-19 11:12:41,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:12:41,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:12:42,059 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:12:42,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1589517514] [2023-12-19 11:12:42,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:12:42,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:12:42,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:12:42,065 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 11:12:42,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 11:12:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:12:42,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-19 11:12:42,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:12:43,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 157 proven. 162 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2023-12-19 11:12:43,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 11:12:43,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2023-12-19 11:12:43,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:12:43,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743905452] [2023-12-19 11:12:43,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:12:43,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589517514] [2023-12-19 11:12:43,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589517514] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 11:12:43,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 11:12:43,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 16 [2023-12-19 11:12:43,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469331533] [2023-12-19 11:12:43,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:12:43,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 11:12:43,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:12:43,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 11:12:43,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-12-19 11:12:43,786 INFO L87 Difference]: Start difference. First operand 101 states and 162 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-12-19 11:12:43,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:12:43,954 INFO L93 Difference]: Finished difference Result 209 states and 332 transitions. [2023-12-19 11:12:43,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 11:12:43,954 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2023-12-19 11:12:43,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:12:43,960 INFO L225 Difference]: With dead ends: 209 [2023-12-19 11:12:43,960 INFO L226 Difference]: Without dead ends: 109 [2023-12-19 11:12:43,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-12-19 11:12:43,962 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 193 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 11:12:43,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 406 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 11:12:43,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-12-19 11:12:43,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2023-12-19 11:12:43,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 72 states have (on average 1.4305555555555556) internal successors, (103), 73 states have internal predecessors, (103), 33 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-19 11:12:43,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 169 transitions. [2023-12-19 11:12:43,990 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 169 transitions. Word has length 199 [2023-12-19 11:12:43,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:12:43,991 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 169 transitions. [2023-12-19 11:12:43,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-12-19 11:12:43,991 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 169 transitions. [2023-12-19 11:12:43,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-19 11:12:43,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:12:43,994 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:12:44,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 11:12:44,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-19 11:12:44,203 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:12:44,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:12:44,204 INFO L85 PathProgramCache]: Analyzing trace with hash 204075029, now seen corresponding path program 1 times [2023-12-19 11:12:44,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:12:44,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174648793] [2023-12-19 11:12:44,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:12:44,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:12:44,273 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:12:44,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [289857851] [2023-12-19 11:12:44,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:12:44,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:12:44,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:12:44,277 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 11:12:44,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 11:12:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:12:45,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 86 conjunts are in the unsatisfiable core [2023-12-19 11:12:45,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:14:13,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 1320 proven. 261 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2023-12-19 11:14:13,071 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 11:15:33,644 WARN L293 SmtUtils]: Spent 30.33s on a formula simplification. DAG size of input: 231 DAG size of output: 221 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 11:16:11,713 WARN L293 SmtUtils]: Spent 9.15s on a formula simplification that was a NOOP. DAG size: 223 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 11:16:39,959 WARN L293 SmtUtils]: Spent 17.78s on a formula simplification that was a NOOP. DAG size: 237 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 11:19:24,961 WARN L293 SmtUtils]: Spent 27.41s on a formula simplification. DAG size of input: 223 DAG size of output: 220 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 11:20:22,628 WARN L293 SmtUtils]: Spent 18.13s on a formula simplification that was a NOOP. DAG size: 216 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 11:21:54,477 WARN L293 SmtUtils]: Spent 9.44s on a formula simplification that was a NOOP. DAG size: 221 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 11:23:54,120 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 (mod c_~var_1_20~0 256))) (or (< 3 .cse0) (let ((.cse4 (mod (+ (* 255 c_~var_1_23~0) c_~var_1_28~0) 256)) (.cse13 (= 0 (mod c_~var_1_13~0 16))) (.cse64 (+ c_~var_1_13~0 1)) (.cse65 (div c_~var_1_13~0 16)) (.cse66 (mod c_~var_1_23~0 256)) (.cse23 (mod (+ c_~var_1_28~0 (* 255 c_~var_1_15~0)) 256))) (let ((.cse28 (+ .cse23 1)) (.cse22 (< .cse66 (+ c_~var_1_15~0 1))) (.cse1 (< c_~var_1_15~0 .cse66)) (.cse2 (< (+ .cse65 128) 0)) (.cse12 (< 0 .cse64)) (.cse15 (and (or (< (+ .cse65 127) 0) (< 0 .cse65)) (or (< 128 .cse65) (< .cse65 1)))) (.cse16 (and (<= .cse64 0) (not .cse13))) (.cse8 (+ .cse4 1)) (.cse7 (mod c_~last_1_var_1_27~0 256)) (.cse35 (mod c_~var_1_22~0 256)) (.cse6 (mod c_~var_1_13~0 4294967296)) (.cse14 (= .cse0 (mod (+ c_~var_1_23~0 c_~var_1_22~0 c_~var_1_15~0) 256)))) (and (or (and (or .cse1 (and (or .cse2 (and (forall ((v_z_131 Int) (v_y_130 Int)) (let ((.cse5 (* v_y_130 4294967296)) (.cse3 (* 64 v_z_131))) (or (< .cse3 (+ .cse4 .cse5 1)) (< (+ .cse4 .cse5 4294967296) .cse3) (< (mod (div (+ (* (- 64) v_z_131) .cse4 .cse5 4294967296) .cse6) 4294967296) .cse7) (< 67108863 v_z_131) (< .cse3 .cse8)))) (forall ((v_y_130 Int) (v_z_136 Int)) (let ((.cse9 (* v_y_130 4294967296))) (let ((.cse10 (+ .cse4 .cse9)) (.cse11 (* 64 v_z_136))) (or (< (mod (div (+ .cse4 (* (- 64) v_z_136) .cse9) .cse6) 4294967296) .cse7) (< .cse10 .cse11) (< v_z_136 0) (< (+ .cse11 4294967295) .cse10) (< .cse4 .cse11)))))) .cse12 .cse13 .cse14) (or .cse15 .cse16 (and (forall ((v_z_142 Int) (v_y_139 Int)) (let ((.cse18 (* v_y_139 4294967296))) (let ((.cse19 (+ .cse18 .cse4)) (.cse17 (* 64 v_z_142))) (or (< .cse4 .cse17) (< (mod (div (+ .cse18 .cse4 (* (- 64) v_z_142)) .cse6) 4294967296) .cse7) (< (+ 4294967295 .cse17) .cse19) (< v_z_142 0) (< .cse19 .cse17))))) (forall ((v_z_146 Int) (v_y_139 Int)) (let ((.cse21 (* 64 v_z_146)) (.cse20 (* v_y_139 4294967296))) (or (< (+ .cse20 .cse4 4294967296) .cse21) (< .cse21 (+ .cse20 .cse4 1)) (< .cse21 .cse8) (< 67108863 v_z_146) (< (mod (div (+ .cse20 (* (- 64) v_z_146) .cse4 4294967296) .cse6) 4294967296) .cse7))))) .cse14))) (or .cse22 (and (or .cse2 (and (forall ((v_z_122 Int) (v_y_121 Int)) (let ((.cse26 (* v_y_121 4294967296))) (let ((.cse25 (+ .cse23 .cse26)) (.cse24 (* 64 v_z_122))) (or (< .cse23 .cse24) (< (+ 4294967295 .cse24) .cse25) (< v_z_122 0) (< (mod (div (+ .cse23 .cse26 (* (- 64) v_z_122)) .cse6) 4294967296) .cse7) (< .cse25 .cse24))))) (forall ((v_z_129 Int) (v_y_121 Int)) (let ((.cse29 (* v_y_121 4294967296)) (.cse27 (* 64 v_z_129))) (or (< .cse27 .cse28) (< (mod (div (+ .cse23 .cse29 4294967296 (* (- 64) v_z_129)) .cse6) 4294967296) .cse7) (< 67108863 v_z_129) (< .cse27 (+ .cse23 .cse29 1)) (< (+ .cse23 .cse29 4294967296) .cse27))))) .cse12 .cse13 .cse14) (or .cse15 .cse16 .cse14 (and (forall ((v_z_118 Int) (v_y_112 Int)) (let ((.cse32 (* v_y_112 4294967296))) (let ((.cse31 (* 64 v_z_118)) (.cse30 (+ .cse23 .cse32))) (or (< .cse30 .cse31) (< (mod (div (+ .cse23 .cse32 (* (- 64) v_z_118)) .cse6) 4294967296) .cse7) (< .cse23 .cse31) (< v_z_118 0) (< (+ .cse31 4294967295) .cse30))))) (forall ((v_z_113 Int) (v_y_112 Int)) (let ((.cse33 (* v_y_112 4294967296)) (.cse34 (* 64 v_z_113))) (or (< (mod (div (+ .cse23 (* (- 64) v_z_113) 4294967296 .cse33) .cse6) 4294967296) .cse7) (< .cse34 (+ .cse23 .cse33 1)) (< .cse34 .cse28) (< 67108863 v_z_113) (< (+ .cse23 4294967296 .cse33) .cse34))))))))) (< .cse35 (+ .cse7 1))) (or (and (or .cse2 (and (forall ((v_y_150 Int) (v_z_158 Int)) (let ((.cse39 (* v_y_150 4294967296))) (let ((.cse38 (+ (mod (div (+ .cse23 (* (- 64) v_z_158) .cse39) .cse6) 4294967296) 1)) (.cse36 (+ .cse23 .cse39)) (.cse37 (* 64 v_z_158))) (or (< .cse36 .cse37) (< .cse35 .cse38) (< .cse7 .cse38) (< v_z_158 0) (< (+ .cse37 4294967295) .cse36) (< .cse23 .cse37))))) (forall ((v_z_153 Int) (v_y_150 Int)) (let ((.cse41 (* v_y_150 4294967296))) (let ((.cse40 (+ (mod (div (+ .cse23 (* (- 64) v_z_153) 4294967296 .cse41) .cse6) 4294967296) 1)) (.cse42 (* 64 v_z_153))) (or (< .cse7 .cse40) (< (+ .cse23 4294967296 .cse41) .cse42) (< .cse35 .cse40) (< .cse42 (+ .cse23 .cse41 1)) (< 67108863 v_z_153) (< .cse42 .cse28)))))) .cse12 .cse13 .cse14) (or .cse15 .cse16 (and (forall ((v_z_164 Int) (v_y_161 Int)) (let ((.cse46 (* v_y_161 4294967296))) (let ((.cse44 (+ .cse23 .cse46)) (.cse43 (+ (mod (div (+ .cse23 .cse46 (* (- 64) v_z_164)) .cse6) 4294967296) 1)) (.cse45 (* 64 v_z_164))) (or (< .cse35 .cse43) (< .cse44 .cse45) (< (+ 4294967295 .cse45) .cse44) (< v_z_164 0) (< .cse7 .cse43) (< .cse23 .cse45))))) (forall ((v_y_161 Int) (v_z_169 Int)) (let ((.cse49 (* v_y_161 4294967296))) (let ((.cse47 (+ (mod (div (+ .cse23 .cse49 (* (- 64) v_z_169) 4294967296) .cse6) 4294967296) 1)) (.cse48 (* 64 v_z_169))) (or (< 67108863 v_z_169) (< .cse35 .cse47) (< .cse48 .cse28) (< .cse48 (+ .cse23 .cse49 1)) (< .cse7 .cse47) (< (+ .cse23 .cse49 4294967296) .cse48)))))) .cse14)) .cse22) (or .cse1 (and (or .cse2 .cse12 .cse13 .cse14 (and (forall ((v_y_183 Int) (v_z_189 Int)) (let ((.cse52 (* v_y_183 4294967296))) (let ((.cse50 (+ (mod (div (+ (* (- 64) v_z_189) .cse4 .cse52 4294967296) .cse6) 4294967296) 1)) (.cse51 (* 64 v_z_189))) (or (< .cse35 .cse50) (< .cse7 .cse50) (< .cse51 .cse8) (< (+ .cse4 .cse52 4294967296) .cse51) (< .cse51 (+ .cse4 .cse52 1)) (< 67108863 v_z_189))))) (forall ((v_z_187 Int) (v_y_183 Int)) (let ((.cse56 (* v_y_183 4294967296))) (let ((.cse53 (+ .cse4 .cse56)) (.cse54 (* 64 v_z_187)) (.cse55 (+ (mod (div (+ (* (- 64) v_z_187) .cse4 .cse56) .cse6) 4294967296) 1))) (or (< .cse53 .cse54) (< (+ 4294967295 .cse54) .cse53) (< .cse4 .cse54) (< .cse7 .cse55) (< .cse35 .cse55) (< v_z_187 0))))))) (or .cse15 .cse16 (and (forall ((v_z_175 Int) (v_y_172 Int)) (let ((.cse59 (* v_y_172 4294967296))) (let ((.cse57 (+ (mod (div (+ (* (- 64) v_z_175) .cse4 4294967296 .cse59) .cse6) 4294967296) 1)) (.cse58 (* 64 v_z_175))) (or (< .cse7 .cse57) (< .cse58 .cse8) (< .cse35 .cse57) (< .cse58 (+ .cse4 .cse59 1)) (< 67108863 v_z_175) (< (+ .cse4 4294967296 .cse59) .cse58))))) (forall ((v_y_172 Int) (v_z_181 Int)) (let ((.cse63 (* v_y_172 4294967296))) (let ((.cse60 (* 64 v_z_181)) (.cse61 (+ .cse4 .cse63)) (.cse62 (+ (mod (div (+ (* (- 64) v_z_181) .cse4 .cse63) .cse6) 4294967296) 1))) (or (< .cse4 .cse60) (< .cse61 .cse60) (< v_z_181 0) (< .cse7 .cse62) (< (+ .cse60 4294967295) .cse61) (< .cse35 .cse62)))))) .cse14)))))))) is different from true [2023-12-19 11:23:54,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2023-12-19 11:23:54,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:23:54,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174648793] [2023-12-19 11:23:54,277 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:23:54,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289857851] [2023-12-19 11:23:54,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289857851] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 11:23:54,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 11:23:54,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [43] total 58 [2023-12-19 11:23:54,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242347322] [2023-12-19 11:23:54,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:23:54,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-19 11:23:54,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:23:54,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-19 11:23:54,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=451, Invalid=2740, Unknown=5, NotChecked=110, Total=3306 [2023-12-19 11:23:54,281 INFO L87 Difference]: Start difference. First operand 108 states and 169 transitions. Second operand has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-12-19 11:25:02,006 WARN L293 SmtUtils]: Spent 1.12m on a formula simplification. DAG size of input: 294 DAG size of output: 282 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 11:25:29,177 WARN L293 SmtUtils]: Spent 5.02s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 11:25:33,204 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] [2023-12-19 11:25:37,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-19 11:25:49,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-19 11:25:58,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-19 11:26:02,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-19 11:26:32,501 WARN L293 SmtUtils]: Spent 26.49s on a formula simplification. DAG size of input: 294 DAG size of output: 309 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 11:26:34,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-19 11:26:38,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-19 11:26:43,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-19 11:26:47,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-19 11:26:51,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-19 11:26:53,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-19 11:26:58,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] Received shutdown request... [2023-12-19 11:27:06,663 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 11:27:06,663 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 11:27:07,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 11:27:07,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 11:27:07,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1596 ImplicationChecksByTransitivity, 316.7s TimeCoverageRelationStatistics Valid=627, Invalid=3662, Unknown=5, NotChecked=128, Total=4422 [2023-12-19 11:27:07,846 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 282 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 15 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 240 IncrementalHoareTripleChecker+Unchecked, 59.4s IncrementalHoareTripleChecker+Time [2023-12-19 11:27:07,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 737 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 611 Invalid, 10 Unknown, 240 Unchecked, 59.4s Time] [2023-12-19 11:27:07,848 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 11:27:07,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 11:27:07,849 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (108states) and FLOYD_HOARE automaton (currently 14 states, 17 states before enhancement),while executing Executor. [2023-12-19 11:27:07,852 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-19 11:27:07,854 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 11:27:07,872 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-19 11:27:07,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:27:07 BoogieIcfgContainer [2023-12-19 11:27:07,876 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 11:27:07,877 INFO L158 Benchmark]: Toolchain (without parser) took 868389.82ms. Allocated memory was 267.4MB in the beginning and 767.6MB in the end (delta: 500.2MB). Free memory was 216.2MB in the beginning and 383.0MB in the end (delta: -166.8MB). Peak memory consumption was 334.9MB. Max. memory is 8.0GB. [2023-12-19 11:27:07,877 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 170.9MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 11:27:07,877 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.52ms. Allocated memory is still 267.4MB. Free memory was 215.7MB in the beginning and 199.4MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-19 11:27:07,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.00ms. Allocated memory is still 267.4MB. Free memory was 198.9MB in the beginning and 193.1MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-19 11:27:07,877 INFO L158 Benchmark]: Boogie Preprocessor took 65.41ms. Allocated memory is still 267.4MB. Free memory was 192.6MB in the beginning and 186.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-19 11:27:07,878 INFO L158 Benchmark]: RCFGBuilder took 759.52ms. Allocated memory is still 267.4MB. Free memory was 185.8MB in the beginning and 148.1MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2023-12-19 11:27:07,878 INFO L158 Benchmark]: TraceAbstraction took 867119.06ms. Allocated memory was 267.4MB in the beginning and 767.6MB in the end (delta: 500.2MB). Free memory was 147.0MB in the beginning and 383.0MB in the end (delta: -236.0MB). Peak memory consumption was 265.7MB. Max. memory is 8.0GB. [2023-12-19 11:27:07,879 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 170.9MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 375.52ms. Allocated memory is still 267.4MB. Free memory was 215.7MB in the beginning and 199.4MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.00ms. Allocated memory is still 267.4MB. Free memory was 198.9MB in the beginning and 193.1MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 65.41ms. Allocated memory is still 267.4MB. Free memory was 192.6MB in the beginning and 186.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 759.52ms. Allocated memory is still 267.4MB. Free memory was 185.8MB in the beginning and 148.1MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * TraceAbstraction took 867119.06ms. Allocated memory was 267.4MB in the beginning and 767.6MB in the end (delta: 500.2MB). Free memory was 147.0MB in the beginning and 383.0MB in the end (delta: -236.0MB). Peak memory consumption was 265.7MB. 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 (108states) and FLOYD_HOARE automaton (currently 14 states, 17 states before enhancement),while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 867.0s, OverallIterations: 3, TraceHistogramMax: 31, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 193.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 486 SdHoareTripleChecker+Valid, 59.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 486 mSDsluCounter, 1743 SdHoareTripleChecker+Invalid, 59.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 240 IncrementalHoareTripleChecker+Unchecked, 1368 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 754 IncrementalHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 375 mSDtfsCounter, 754 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1004 GetRequests, 920 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1649 ImplicationChecksByTransitivity, 316.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=2, InterpolantAutomatonStates: 10, 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 670.2s InterpolantComputationTime, 598 NumberOfCodeBlocks, 598 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 993 ConstructedInterpolants, 10 QuantifiedInterpolants, 27246 SizeOfPredicates, 57 NumberOfNonLiveVariables, 1440 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 8877/9300 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