/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_floatingpointinfluence_no-floats_file-79.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 11:02:35,884 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 11:02:35,965 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 11:02:35,969 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 11:02:35,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 11:02:35,995 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 11:02:35,996 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 11:02:35,996 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 11:02:35,997 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 11:02:35,999 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 11:02:36,000 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 11:02:36,000 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 11:02:36,001 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 11:02:36,002 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 11:02:36,002 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 11:02:36,002 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 11:02:36,002 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 11:02:36,002 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 11:02:36,003 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 11:02:36,004 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 11:02:36,004 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 11:02:36,004 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 11:02:36,004 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 11:02:36,005 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 11:02:36,005 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 11:02:36,005 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 11:02:36,005 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 11:02:36,005 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 11:02:36,006 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 11:02:36,006 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 11:02:36,007 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 11:02:36,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 11:02:36,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 11:02:36,007 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 11:02:36,007 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 11:02:36,007 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 11:02:36,007 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 11:02:36,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 11:02:36,008 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 11:02:36,008 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 11:02:36,008 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 11:02:36,008 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 11:02:36,008 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 11:02:36,008 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 11:02:36,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 11:02:36,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 11:02:36,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 11:02:36,251 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 11:02:36,252 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 11:02:36,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i [2023-12-19 11:02:37,483 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 11:02:37,653 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 11:02:37,654 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i [2023-12-19 11:02:37,661 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bdb6e7f2/cb535d20f4a34ff196ece771f6c40d40/FLAG12fe96bcf [2023-12-19 11:02:37,673 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bdb6e7f2/cb535d20f4a34ff196ece771f6c40d40 [2023-12-19 11:02:37,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 11:02:37,676 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 11:02:37,678 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 11:02:37,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 11:02:37,682 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 11:02:37,683 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:02:37" (1/1) ... [2023-12-19 11:02:37,683 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61ae7fb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:37, skipping insertion in model container [2023-12-19 11:02:37,684 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:02:37" (1/1) ... [2023-12-19 11:02:37,708 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 11:02:37,820 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i[916,929] [2023-12-19 11:02:37,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 11:02:37,874 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 11:02:37,885 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i[916,929] [2023-12-19 11:02:37,906 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 11:02:37,921 INFO L206 MainTranslator]: Completed translation [2023-12-19 11:02:37,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:37 WrapperNode [2023-12-19 11:02:37,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 11:02:37,923 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 11:02:37,923 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 11:02:37,923 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 11:02:37,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:37" (1/1) ... [2023-12-19 11:02:37,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:37" (1/1) ... [2023-12-19 11:02:37,972 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 119 [2023-12-19 11:02:37,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 11:02:37,973 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 11:02:37,973 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 11:02:37,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 11:02:37,985 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:37" (1/1) ... [2023-12-19 11:02:37,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:37" (1/1) ... [2023-12-19 11:02:37,995 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:37" (1/1) ... [2023-12-19 11:02:38,013 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 11:02:38,013 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:37" (1/1) ... [2023-12-19 11:02:38,014 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:37" (1/1) ... [2023-12-19 11:02:38,023 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:37" (1/1) ... [2023-12-19 11:02:38,032 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:37" (1/1) ... [2023-12-19 11:02:38,033 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:37" (1/1) ... [2023-12-19 11:02:38,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:37" (1/1) ... [2023-12-19 11:02:38,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 11:02:38,036 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 11:02:38,036 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 11:02:38,036 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 11:02:38,037 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:37" (1/1) ... [2023-12-19 11:02:38,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 11:02:38,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:02:38,105 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 11:02:38,147 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 11:02:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 11:02:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 11:02:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 11:02:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 11:02:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 11:02:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 11:02:38,220 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 11:02:38,221 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 11:02:38,468 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 11:02:38,498 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 11:02:38,499 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 11:02:38,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:02:38 BoogieIcfgContainer [2023-12-19 11:02:38,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 11:02:38,502 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 11:02:38,502 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 11:02:38,504 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 11:02:38,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:02:37" (1/3) ... [2023-12-19 11:02:38,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc51574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:02:38, skipping insertion in model container [2023-12-19 11:02:38,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:02:37" (2/3) ... [2023-12-19 11:02:38,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc51574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:02:38, skipping insertion in model container [2023-12-19 11:02:38,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:02:38" (3/3) ... [2023-12-19 11:02:38,507 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-79.i [2023-12-19 11:02:38,521 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 11:02:38,521 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 11:02:38,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 11:02:38,571 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;@59a259d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 11:02:38,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 11:02:38,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 11:02:38,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-19 11:02:38,593 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:02:38,594 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:38,595 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:02:38,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:02:38,601 INFO L85 PathProgramCache]: Analyzing trace with hash 666231349, now seen corresponding path program 1 times [2023-12-19 11:02:38,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:02:38,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608305708] [2023-12-19 11:02:38,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:38,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:02:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:38,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:02:38,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608305708] [2023-12-19 11:02:38,787 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 11:02:38,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925493682] [2023-12-19 11:02:38,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:38,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:02:38,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:02:38,802 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 11:02:38,852 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 11:02:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:38,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 11:02:38,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:02:39,020 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2023-12-19 11:02:39,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 11:02:39,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925493682] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:02:39,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:02:39,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 11:02:39,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968995174] [2023-12-19 11:02:39,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:02:39,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 11:02:39,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:02:39,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 11:02:39,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 11:02:39,057 INFO L87 Difference]: Start difference. First operand has 47 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-19 11:02:39,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:02:39,087 INFO L93 Difference]: Finished difference Result 91 states and 156 transitions. [2023-12-19 11:02:39,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 11:02:39,090 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 90 [2023-12-19 11:02:39,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:02:39,096 INFO L225 Difference]: With dead ends: 91 [2023-12-19 11:02:39,096 INFO L226 Difference]: Without dead ends: 45 [2023-12-19 11:02:39,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 11:02:39,102 INFO L413 NwaCegarLoop]: 64 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, 64 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 11:02:39,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 11:02:39,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-12-19 11:02:39,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-12-19 11:02:39,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 11:02:39,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 67 transitions. [2023-12-19 11:02:39,137 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 67 transitions. Word has length 90 [2023-12-19 11:02:39,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:02:39,138 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 67 transitions. [2023-12-19 11:02:39,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-19 11:02:39,139 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 67 transitions. [2023-12-19 11:02:39,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-19 11:02:39,142 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:02:39,143 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:39,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 11:02:39,349 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 11:02:39,350 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:02:39,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:02:39,352 INFO L85 PathProgramCache]: Analyzing trace with hash -539411595, now seen corresponding path program 1 times [2023-12-19 11:02:39,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:02:39,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641435800] [2023-12-19 11:02:39,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:39,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:02:39,381 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:02:39,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1255092184] [2023-12-19 11:02:39,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:39,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:02:39,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:02:39,383 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 11:02:39,389 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 11:02:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:39,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 11:02:39,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:02:39,541 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 11:02:39,542 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 11:02:39,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:02:39,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641435800] [2023-12-19 11:02:39,542 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:02:39,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255092184] [2023-12-19 11:02:39,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255092184] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:02:39,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:02:39,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 11:02:39,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490686589] [2023-12-19 11:02:39,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:02:39,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 11:02:39,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:02:39,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 11:02:39,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 11:02:39,545 INFO L87 Difference]: Start difference. First operand 45 states and 67 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 11:02:39,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:02:39,595 INFO L93 Difference]: Finished difference Result 131 states and 195 transitions. [2023-12-19 11:02:39,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 11:02:39,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 90 [2023-12-19 11:02:39,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:02:39,600 INFO L225 Difference]: With dead ends: 131 [2023-12-19 11:02:39,600 INFO L226 Difference]: Without dead ends: 87 [2023-12-19 11:02:39,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 11:02:39,604 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 65 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 11:02:39,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 286 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 11:02:39,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-12-19 11:02:39,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 47. [2023-12-19 11:02:39,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 11:02:39,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 69 transitions. [2023-12-19 11:02:39,617 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 69 transitions. Word has length 90 [2023-12-19 11:02:39,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:02:39,619 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 69 transitions. [2023-12-19 11:02:39,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 11:02:39,619 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 69 transitions. [2023-12-19 11:02:39,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-19 11:02:39,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:02:39,620 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:39,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-19 11:02:39,826 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 11:02:39,826 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:02:39,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:02:39,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1734705598, now seen corresponding path program 1 times [2023-12-19 11:02:39,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:02:39,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774323330] [2023-12-19 11:02:39,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:39,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:02:39,851 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:02:39,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1461786339] [2023-12-19 11:02:39,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:39,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:02:39,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:02:39,853 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 11:02:39,867 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 11:02:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:39,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 11:02:39,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:02:40,348 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 11:02:40,348 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 11:02:40,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:02:40,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774323330] [2023-12-19 11:02:40,348 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:02:40,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461786339] [2023-12-19 11:02:40,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461786339] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:02:40,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:02:40,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 11:02:40,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604520668] [2023-12-19 11:02:40,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:02:40,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 11:02:40,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:02:40,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 11:02:40,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 11:02:40,351 INFO L87 Difference]: Start difference. First operand 47 states and 69 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 11:02:40,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:02:40,418 INFO L93 Difference]: Finished difference Result 101 states and 146 transitions. [2023-12-19 11:02:40,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 11:02:40,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2023-12-19 11:02:40,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:02:40,421 INFO L225 Difference]: With dead ends: 101 [2023-12-19 11:02:40,422 INFO L226 Difference]: Without dead ends: 55 [2023-12-19 11:02:40,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 11:02:40,425 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 12 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 11:02:40,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 184 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 11:02:40,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-12-19 11:02:40,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 45. [2023-12-19 11:02:40,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 29 states have internal predecessors, (38), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 11:02:40,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 66 transitions. [2023-12-19 11:02:40,438 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 66 transitions. Word has length 91 [2023-12-19 11:02:40,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:02:40,438 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 66 transitions. [2023-12-19 11:02:40,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 11:02:40,438 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 66 transitions. [2023-12-19 11:02:40,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-19 11:02:40,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:02:40,456 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:40,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-19 11:02:40,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:02:40,657 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:02:40,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:02:40,658 INFO L85 PathProgramCache]: Analyzing trace with hash 994901722, now seen corresponding path program 1 times [2023-12-19 11:02:40,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:02:40,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200935481] [2023-12-19 11:02:40,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:40,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:02:40,693 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:02:40,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [283435382] [2023-12-19 11:02:40,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:40,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:02:40,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:02:40,699 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 11:02:40,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 11:02:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:40,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 11:02:40,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:02:40,804 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-19 11:02:40,804 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 11:02:40,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:02:40,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200935481] [2023-12-19 11:02:40,804 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:02:40,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283435382] [2023-12-19 11:02:40,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283435382] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:02:40,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:02:40,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 11:02:40,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884294885] [2023-12-19 11:02:40,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:02:40,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 11:02:40,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:02:40,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 11:02:40,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 11:02:40,806 INFO L87 Difference]: Start difference. First operand 45 states and 66 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 11:02:40,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:02:40,944 INFO L93 Difference]: Finished difference Result 95 states and 136 transitions. [2023-12-19 11:02:40,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 11:02:40,945 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 92 [2023-12-19 11:02:40,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:02:40,948 INFO L225 Difference]: With dead ends: 95 [2023-12-19 11:02:40,949 INFO L226 Difference]: Without dead ends: 51 [2023-12-19 11:02:40,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-19 11:02:40,952 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 76 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 11:02:40,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 96 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 11:02:40,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-12-19 11:02:40,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2023-12-19 11:02:40,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 11:02:40,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 67 transitions. [2023-12-19 11:02:40,963 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 67 transitions. Word has length 92 [2023-12-19 11:02:40,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:02:40,964 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 67 transitions. [2023-12-19 11:02:40,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 11:02:40,964 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 67 transitions. [2023-12-19 11:02:40,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-19 11:02:40,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:02:40,969 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:40,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 11:02:41,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:02:41,178 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:02:41,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:02:41,178 INFO L85 PathProgramCache]: Analyzing trace with hash 283170531, now seen corresponding path program 1 times [2023-12-19 11:02:41,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:02:41,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425613314] [2023-12-19 11:02:41,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:41,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:02:41,215 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:02:41,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [626853907] [2023-12-19 11:02:41,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:41,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:02:41,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:02:41,229 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 11:02:41,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 11:02:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:41,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-19 11:02:41,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:02:41,944 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 11:02:41,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 11:02:41,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:02:41,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425613314] [2023-12-19 11:02:41,945 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:02:41,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626853907] [2023-12-19 11:02:41,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626853907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:02:41,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:02:41,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-19 11:02:41,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804972682] [2023-12-19 11:02:41,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:02:41,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 11:02:41,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:02:41,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 11:02:41,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-12-19 11:02:41,956 INFO L87 Difference]: Start difference. First operand 49 states and 67 transitions. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 11:02:42,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:02:42,244 INFO L93 Difference]: Finished difference Result 85 states and 108 transitions. [2023-12-19 11:02:42,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 11:02:42,244 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2023-12-19 11:02:42,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:02:42,245 INFO L225 Difference]: With dead ends: 85 [2023-12-19 11:02:42,245 INFO L226 Difference]: Without dead ends: 83 [2023-12-19 11:02:42,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2023-12-19 11:02:42,246 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 64 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 11:02:42,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 286 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 11:02:42,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-19 11:02:42,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 61. [2023-12-19 11:02:42,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 44 states have internal predecessors, (54), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 11:02:42,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 82 transitions. [2023-12-19 11:02:42,263 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 82 transitions. Word has length 93 [2023-12-19 11:02:42,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:02:42,263 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 82 transitions. [2023-12-19 11:02:42,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 11:02:42,263 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 82 transitions. [2023-12-19 11:02:42,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-19 11:02:42,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:02:42,265 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:42,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 11:02:42,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:02:42,472 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:02:42,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:02:42,473 INFO L85 PathProgramCache]: Analyzing trace with hash 285017573, now seen corresponding path program 1 times [2023-12-19 11:02:42,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:02:42,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139469735] [2023-12-19 11:02:42,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:42,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:02:42,492 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:02:42,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [938336025] [2023-12-19 11:02:42,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:42,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:02:42,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:02:42,493 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 11:02:42,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 11:02:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:42,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 11:02:42,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:02:42,577 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 11:02:42,577 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 11:02:42,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:02:42,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139469735] [2023-12-19 11:02:42,578 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:02:42,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938336025] [2023-12-19 11:02:42,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938336025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:02:42,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:02:42,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 11:02:42,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899369369] [2023-12-19 11:02:42,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:02:42,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 11:02:42,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:02:42,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 11:02:42,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 11:02:42,579 INFO L87 Difference]: Start difference. First operand 61 states and 82 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 11:02:42,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:02:42,597 INFO L93 Difference]: Finished difference Result 138 states and 184 transitions. [2023-12-19 11:02:42,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 11:02:42,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2023-12-19 11:02:42,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:02:42,598 INFO L225 Difference]: With dead ends: 138 [2023-12-19 11:02:42,598 INFO L226 Difference]: Without dead ends: 78 [2023-12-19 11:02:42,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 11:02:42,599 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 13 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 11:02:42,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 108 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 11:02:42,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-19 11:02:42,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 71. [2023-12-19 11:02:42,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 54 states have (on average 1.2222222222222223) internal successors, (66), 54 states have internal predecessors, (66), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 11:02:42,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 94 transitions. [2023-12-19 11:02:42,603 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 94 transitions. Word has length 93 [2023-12-19 11:02:42,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:02:42,604 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 94 transitions. [2023-12-19 11:02:42,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 11:02:42,604 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 94 transitions. [2023-12-19 11:02:42,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-19 11:02:42,605 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:02:42,605 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:42,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 11:02:42,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:02:42,812 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:02:42,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:02:42,812 INFO L85 PathProgramCache]: Analyzing trace with hash -727946719, now seen corresponding path program 1 times [2023-12-19 11:02:42,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:02:42,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735719789] [2023-12-19 11:02:42,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:42,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:02:42,825 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:02:42,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [513658125] [2023-12-19 11:02:42,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:42,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:02:42,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:02:42,826 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 11:02:42,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 11:02:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:02:42,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 11:02:42,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:02:42,947 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 11:02:42,948 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 11:02:42,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:02:42,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735719789] [2023-12-19 11:02:42,948 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:02:42,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513658125] [2023-12-19 11:02:42,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513658125] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:02:42,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:02:42,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 11:02:42,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193426839] [2023-12-19 11:02:42,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:02:42,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 11:02:42,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:02:42,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 11:02:42,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 11:02:42,950 INFO L87 Difference]: Start difference. First operand 71 states and 94 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 11:02:42,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:02:42,971 INFO L93 Difference]: Finished difference Result 148 states and 194 transitions. [2023-12-19 11:02:42,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 11:02:42,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2023-12-19 11:02:42,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:02:42,973 INFO L225 Difference]: With dead ends: 148 [2023-12-19 11:02:42,973 INFO L226 Difference]: Without dead ends: 78 [2023-12-19 11:02:42,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 11:02:42,974 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 13 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 11:02:42,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 125 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 11:02:42,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-19 11:02:42,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 71. [2023-12-19 11:02:42,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 54 states have internal predecessors, (65), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 11:02:42,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 93 transitions. [2023-12-19 11:02:42,980 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 93 transitions. Word has length 93 [2023-12-19 11:02:42,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:02:42,980 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 93 transitions. [2023-12-19 11:02:42,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 11:02:42,980 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 93 transitions. [2023-12-19 11:02:42,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-19 11:02:42,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:02:42,981 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:42,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 11:02:43,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:02:43,188 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:02:43,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:02:43,189 INFO L85 PathProgramCache]: Analyzing trace with hash -726099677, now seen corresponding path program 1 times [2023-12-19 11:02:43,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:02:43,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864526388] [2023-12-19 11:02:43,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:43,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:02:43,201 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:02:43,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1193998540] [2023-12-19 11:02:43,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:02:43,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:02:43,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:02:43,206 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 11:02:43,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 11:02:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 11:02:43,262 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-19 11:02:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 11:02:43,329 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-19 11:02:43,329 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-19 11:02:43,330 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 11:02:43,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-19 11:02:43,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-19 11:02:43,544 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:02:43,547 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 11:02:43,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:02:43 BoogieIcfgContainer [2023-12-19 11:02:43,593 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 11:02:43,594 INFO L158 Benchmark]: Toolchain (without parser) took 5917.52ms. Allocated memory was 307.2MB in the beginning and 369.1MB in the end (delta: 61.9MB). Free memory was 259.3MB in the beginning and 297.2MB in the end (delta: -38.0MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-19 11:02:43,594 INFO L158 Benchmark]: CDTParser took 0.70ms. Allocated memory is still 188.7MB. Free memory was 143.1MB in the beginning and 143.0MB in the end (delta: 138.0kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 11:02:43,594 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.60ms. Allocated memory is still 307.2MB. Free memory was 259.0MB in the beginning and 246.7MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-19 11:02:43,594 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.14ms. Allocated memory is still 307.2MB. Free memory was 246.7MB in the beginning and 244.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 11:02:43,595 INFO L158 Benchmark]: Boogie Preprocessor took 62.30ms. Allocated memory is still 307.2MB. Free memory was 244.6MB in the beginning and 242.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 11:02:43,595 INFO L158 Benchmark]: RCFGBuilder took 463.00ms. Allocated memory is still 307.2MB. Free memory was 241.8MB in the beginning and 225.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-19 11:02:43,595 INFO L158 Benchmark]: TraceAbstraction took 5091.59ms. Allocated memory was 307.2MB in the beginning and 369.1MB in the end (delta: 61.9MB). Free memory was 224.4MB in the beginning and 297.2MB in the end (delta: -72.9MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 11:02:43,596 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70ms. Allocated memory is still 188.7MB. Free memory was 143.1MB in the beginning and 143.0MB in the end (delta: 138.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 243.60ms. Allocated memory is still 307.2MB. Free memory was 259.0MB in the beginning and 246.7MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.14ms. Allocated memory is still 307.2MB. Free memory was 246.7MB in the beginning and 244.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.30ms. Allocated memory is still 307.2MB. Free memory was 244.6MB in the beginning and 242.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 463.00ms. Allocated memory is still 307.2MB. Free memory was 241.8MB in the beginning and 225.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 5091.59ms. Allocated memory was 307.2MB in the beginning and 369.1MB in the end (delta: 61.9MB). Free memory was 224.4MB in the beginning and 297.2MB in the end (delta: -72.9MB). There was no memory consumed. 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftRight at line 91. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -16; [L23] signed char var_1_3 = 0; [L24] signed char var_1_4 = 64; [L25] signed char var_1_5 = 64; [L26] signed long int var_1_6 = -64; [L27] signed long int var_1_8 = 32; [L28] signed long int var_1_9 = 1; [L29] unsigned short int var_1_10 = 32; [L30] signed long int var_1_11 = 15; [L31] unsigned char var_1_12 = 0; [L32] unsigned char var_1_13 = 0; [L33] unsigned short int last_1_var_1_10 = 32; [L95] isInitial = 1 [L96] FCALL initially() [L97] COND TRUE 1 [L98] CALL updateLastVariables() [L88] last_1_var_1_10 = var_1_10 [L98] RET updateLastVariables() [L99] CALL updateVariables() [L65] var_1_3 = __VERIFIER_nondet_char() [L66] CALL assume_abort_if_not(var_1_3 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L66] RET assume_abort_if_not(var_1_3 >= -63) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L67] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L67] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L68] var_1_4 = __VERIFIER_nondet_char() [L69] CALL assume_abort_if_not(var_1_4 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L69] RET assume_abort_if_not(var_1_4 >= -1) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L70] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L70] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L71] var_1_5 = __VERIFIER_nondet_char() [L72] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=32, var_1_9=1] [L72] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=32, var_1_9=1] [L73] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=32, var_1_9=1] [L73] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=32, var_1_9=1] [L74] var_1_8 = __VERIFIER_nondet_long() [L75] CALL assume_abort_if_not(var_1_8 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=1] [L75] RET assume_abort_if_not(var_1_8 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=1] [L76] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=1] [L76] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=1] [L77] var_1_9 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_9 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L78] RET assume_abort_if_not(var_1_9 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L79] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L79] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L80] var_1_11 = __VERIFIER_nondet_long() [L81] CALL assume_abort_if_not(var_1_11 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L81] RET assume_abort_if_not(var_1_11 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L82] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L82] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L83] var_1_13 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L84] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L85] CALL assume_abort_if_not(var_1_13 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L85] RET assume_abort_if_not(var_1_13 <= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L99] RET updateVariables() [L100] CALL step() [L37] signed long int stepLocal_0 = (((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10)); VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L38] EXPR last_1_var_1_10 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=-64, var_1_8=2147483647, var_1_9=-2147483648] [L38] COND FALSE !(stepLocal_0 <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) [L45] var_1_6 = var_1_5 VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L47] signed long int stepLocal_1 = var_1_5 + var_1_6; VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, stepLocal_1=64, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L48] COND FALSE !(var_1_11 < var_1_9) VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, stepLocal_1=64, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L55] var_1_12 = var_1_13 VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, stepLocal_1=64, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L56] COND TRUE ! var_1_12 VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, stepLocal_1=64, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L57] COND TRUE ! var_1_12 [L58] var_1_1 = (var_1_3 + -32) VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, stepLocal_1=64, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=0, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L100] RET step() [L101] CALL, EXPR property() [L91] EXPR ((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5))) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=0, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L91] EXPR last_1_var_1_10 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=0, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L91] EXPR ((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5))) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=0, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L91-L92] return ((((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5)))) && ((var_1_11 < var_1_9) ? (((var_1_5 + var_1_6) <= (~ (var_1_6 % -32))) ? (var_1_10 == ((unsigned short int) var_1_5)) : (var_1_10 == ((unsigned short int) var_1_5))) : 1)) && (var_1_12 == ((unsigned char) var_1_13)) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=0, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=0, var_1_3=32, var_1_4=2, var_1_5=32, var_1_6=32, var_1_8=2147483647, var_1_9=-2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 8, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 245 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 243 mSDsluCounter, 1149 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 682 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 402 IncrementalHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 467 mSDtfsCounter, 402 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 651 GetRequests, 617 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=6, InterpolantAutomatonStates: 40, 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, 7 MinimizatonAttempts, 88 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 825 NumberOfCodeBlocks, 825 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 635 ConstructedInterpolants, 0 QuantifiedInterpolants, 1163 SizeOfPredicates, 23 NumberOfNonLiveVariables, 1555 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 2548/2548 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: unable to determine feasibility of some traces [2023-12-19 11:02:43,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...