/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_has-floats_file-18.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 10:30:09,233 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 10:30:09,319 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 10:30:09,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 10:30:09,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 10:30:09,353 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 10:30:09,354 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 10:30:09,354 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 10:30:09,355 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 10:30:09,362 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 10:30:09,362 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 10:30:09,363 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 10:30:09,363 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 10:30:09,364 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 10:30:09,365 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 10:30:09,365 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 10:30:09,365 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 10:30:09,365 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 10:30:09,366 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 10:30:09,367 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 10:30:09,367 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 10:30:09,367 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 10:30:09,368 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 10:30:09,368 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 10:30:09,368 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 10:30:09,368 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 10:30:09,368 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 10:30:09,369 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 10:30:09,369 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 10:30:09,370 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 10:30:09,371 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 10:30:09,371 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 10:30:09,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 10:30:09,371 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 10:30:09,371 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 10:30:09,371 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 10:30:09,372 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 10:30:09,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 10:30:09,372 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 10:30:09,372 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 10:30:09,372 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 10:30:09,373 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 10:30:09,373 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 10:30:09,373 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 10:30:09,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 10:30:09,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 10:30:09,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 10:30:09,630 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 10:30:09,630 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 10:30:09,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i [2023-12-19 10:30:10,775 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 10:30:10,940 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 10:30:10,941 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i [2023-12-19 10:30:10,948 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/632bb113d/821ff35ea6274c1db5832f4c3cc38e14/FLAGf10e04119 [2023-12-19 10:30:10,962 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/632bb113d/821ff35ea6274c1db5832f4c3cc38e14 [2023-12-19 10:30:10,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 10:30:10,966 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 10:30:10,967 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 10:30:10,967 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 10:30:10,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 10:30:10,975 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:30:10" (1/1) ... [2023-12-19 10:30:10,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6435d157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:30:10, skipping insertion in model container [2023-12-19 10:30:10,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:30:10" (1/1) ... [2023-12-19 10:30:11,010 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 10:30:11,126 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i[917,930] [2023-12-19 10:30:11,176 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 10:30:11,196 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 10:30:11,209 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i[917,930] [2023-12-19 10:30:11,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 10:30:11,259 INFO L206 MainTranslator]: Completed translation [2023-12-19 10:30:11,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:30:11 WrapperNode [2023-12-19 10:30:11,260 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 10:30:11,261 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 10:30:11,261 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 10:30:11,261 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 10:30:11,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:30:11" (1/1) ... [2023-12-19 10:30:11,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:30:11" (1/1) ... [2023-12-19 10:30:11,323 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 143 [2023-12-19 10:30:11,323 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 10:30:11,324 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 10:30:11,324 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 10:30:11,324 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 10:30:11,333 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:30:11" (1/1) ... [2023-12-19 10:30:11,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:30:11" (1/1) ... [2023-12-19 10:30:11,344 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:30:11" (1/1) ... [2023-12-19 10:30:11,374 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 10:30:11,375 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:30:11" (1/1) ... [2023-12-19 10:30:11,375 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:30:11" (1/1) ... [2023-12-19 10:30:11,383 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:30:11" (1/1) ... [2023-12-19 10:30:11,388 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:30:11" (1/1) ... [2023-12-19 10:30:11,390 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:30:11" (1/1) ... [2023-12-19 10:30:11,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:30:11" (1/1) ... [2023-12-19 10:30:11,394 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 10:30:11,394 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 10:30:11,395 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 10:30:11,395 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 10:30:11,395 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:30:11" (1/1) ... [2023-12-19 10:30:11,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 10:30:11,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:30:11,425 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 10:30:11,436 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 10:30:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 10:30:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 10:30:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 10:30:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 10:30:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 10:30:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 10:30:11,550 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 10:30:11,554 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 10:30:11,894 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 10:30:11,920 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 10:30:11,920 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 10:30:11,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:30:11 BoogieIcfgContainer [2023-12-19 10:30:11,921 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 10:30:11,923 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 10:30:11,923 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 10:30:11,926 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 10:30:11,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 10:30:10" (1/3) ... [2023-12-19 10:30:11,926 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2acfaaa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:30:11, skipping insertion in model container [2023-12-19 10:30:11,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:30:11" (2/3) ... [2023-12-19 10:30:11,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2acfaaa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:30:11, skipping insertion in model container [2023-12-19 10:30:11,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:30:11" (3/3) ... [2023-12-19 10:30:11,928 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-18.i [2023-12-19 10:30:11,942 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 10:30:11,943 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 10:30:11,982 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 10:30:11,988 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;@47a0a33f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 10:30:11,988 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 10:30:11,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 39 states have (on average 1.564102564102564) internal successors, (61), 40 states have internal predecessors, (61), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-19 10:30:12,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-19 10:30:12,002 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:30:12,002 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:30:12,003 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:30:12,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:30:12,008 INFO L85 PathProgramCache]: Analyzing trace with hash 2073573377, now seen corresponding path program 1 times [2023-12-19 10:30:12,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:30:12,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750565037] [2023-12-19 10:30:12,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:12,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:30:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:30:12,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:30:12,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750565037] [2023-12-19 10:30:12,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 10:30:12,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410992246] [2023-12-19 10:30:12,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:12,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:30:12,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:30:12,164 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 10:30:12,184 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 10:30:12,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:30:12,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 10:30:12,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:30:12,350 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-12-19 10:30:12,350 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:30:12,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410992246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:30:12,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:30:12,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 10:30:12,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822713779] [2023-12-19 10:30:12,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:30:12,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 10:30:12,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:30:12,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 10:30:12,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 10:30:12,379 INFO L87 Difference]: Start difference. First operand has 54 states, 39 states have (on average 1.564102564102564) internal successors, (61), 40 states have internal predecessors, (61), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 10:30:12,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:30:12,404 INFO L93 Difference]: Finished difference Result 105 states and 180 transitions. [2023-12-19 10:30:12,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 10:30:12,406 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2023-12-19 10:30:12,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:30:12,413 INFO L225 Difference]: With dead ends: 105 [2023-12-19 10:30:12,413 INFO L226 Difference]: Without dead ends: 52 [2023-12-19 10:30:12,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 82 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 10:30:12,421 INFO L413 NwaCegarLoop]: 77 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, 77 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 10:30:12,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 10:30:12,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-12-19 10:30:12,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-12-19 10:30:12,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 38 states have (on average 1.4736842105263157) internal successors, (56), 38 states have internal predecessors, (56), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-19 10:30:12,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 80 transitions. [2023-12-19 10:30:12,467 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 80 transitions. Word has length 83 [2023-12-19 10:30:12,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:30:12,467 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 80 transitions. [2023-12-19 10:30:12,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 10:30:12,468 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 80 transitions. [2023-12-19 10:30:12,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-19 10:30:12,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:30:12,470 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:30:12,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 10:30:12,672 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 10:30:12,672 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:30:12,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:30:12,673 INFO L85 PathProgramCache]: Analyzing trace with hash 2129194053, now seen corresponding path program 1 times [2023-12-19 10:30:12,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:30:12,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484566185] [2023-12-19 10:30:12,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:12,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:30:12,725 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:30:12,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [105453232] [2023-12-19 10:30:12,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:12,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:30:12,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:30:12,728 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 10:30:12,733 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 10:30:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:30:12,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 10:30:12,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:30:12,996 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 10:30:12,996 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:30:12,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:30:12,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484566185] [2023-12-19 10:30:12,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:30:12,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105453232] [2023-12-19 10:30:12,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105453232] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:30:12,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:30:12,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 10:30:12,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066887953] [2023-12-19 10:30:12,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:30:13,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 10:30:13,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:30:13,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 10:30:13,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 10:30:13,001 INFO L87 Difference]: Start difference. First operand 52 states and 80 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:30:13,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:30:13,114 INFO L93 Difference]: Finished difference Result 154 states and 238 transitions. [2023-12-19 10:30:13,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 10:30:13,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 83 [2023-12-19 10:30:13,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:30:13,119 INFO L225 Difference]: With dead ends: 154 [2023-12-19 10:30:13,119 INFO L226 Difference]: Without dead ends: 103 [2023-12-19 10:30:13,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 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 10:30:13,123 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 34 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 10:30:13,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 120 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 10:30:13,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-19 10:30:13,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2023-12-19 10:30:13,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 73 states have (on average 1.4246575342465753) internal successors, (104), 73 states have internal predecessors, (104), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 10:30:13,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 152 transitions. [2023-12-19 10:30:13,152 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 152 transitions. Word has length 83 [2023-12-19 10:30:13,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:30:13,152 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 152 transitions. [2023-12-19 10:30:13,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:30:13,153 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 152 transitions. [2023-12-19 10:30:13,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-19 10:30:13,154 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:30:13,154 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:30:13,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 10:30:13,364 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 10:30:13,364 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:30:13,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:30:13,365 INFO L85 PathProgramCache]: Analyzing trace with hash -630501658, now seen corresponding path program 1 times [2023-12-19 10:30:13,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:30:13,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424398365] [2023-12-19 10:30:13,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:13,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:30:13,397 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:30:13,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2070645919] [2023-12-19 10:30:13,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:13,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:30:13,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:30:13,399 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 10:30:13,420 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 10:30:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:30:13,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-19 10:30:13,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:30:13,893 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 10:30:13,893 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:30:14,198 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-19 10:30:14,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:30:14,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424398365] [2023-12-19 10:30:14,198 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:30:14,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070645919] [2023-12-19 10:30:14,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070645919] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 10:30:14,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 10:30:14,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-19 10:30:14,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152637595] [2023-12-19 10:30:14,199 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 10:30:14,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-19 10:30:14,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:30:14,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-19 10:30:14,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2023-12-19 10:30:14,204 INFO L87 Difference]: Start difference. First operand 100 states and 152 transitions. Second operand has 16 states, 15 states have (on average 3.466666666666667) internal successors, (52), 16 states have internal predecessors, (52), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2023-12-19 10:30:14,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:30:14,899 INFO L93 Difference]: Finished difference Result 330 states and 486 transitions. [2023-12-19 10:30:14,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-19 10:30:14,900 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.466666666666667) internal successors, (52), 16 states have internal predecessors, (52), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) Word has length 84 [2023-12-19 10:30:14,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:30:14,907 INFO L225 Difference]: With dead ends: 330 [2023-12-19 10:30:14,907 INFO L226 Difference]: Without dead ends: 231 [2023-12-19 10:30:14,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=288, Invalid=834, Unknown=0, NotChecked=0, Total=1122 [2023-12-19 10:30:14,913 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 208 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 10:30:14,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 260 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 10:30:14,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-12-19 10:30:14,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 217. [2023-12-19 10:30:14,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 160 states have (on average 1.2625) internal successors, (202), 160 states have internal predecessors, (202), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-19 10:30:14,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 298 transitions. [2023-12-19 10:30:14,953 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 298 transitions. Word has length 84 [2023-12-19 10:30:14,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:30:14,954 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 298 transitions. [2023-12-19 10:30:14,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.466666666666667) internal successors, (52), 16 states have internal predecessors, (52), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2023-12-19 10:30:14,954 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 298 transitions. [2023-12-19 10:30:14,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-19 10:30:14,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:30:14,956 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:30:14,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 10:30:15,156 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 10:30:15,157 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:30:15,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:30:15,157 INFO L85 PathProgramCache]: Analyzing trace with hash 299204016, now seen corresponding path program 1 times [2023-12-19 10:30:15,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:30:15,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102197199] [2023-12-19 10:30:15,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:15,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:30:15,193 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:30:15,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1628243014] [2023-12-19 10:30:15,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:15,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:30:15,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:30:15,206 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 10:30:15,224 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 10:30:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:30:15,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-19 10:30:15,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:30:16,510 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 10:30:16,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:30:16,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:30:16,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102197199] [2023-12-19 10:30:16,511 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:30:16,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628243014] [2023-12-19 10:30:16,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628243014] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:30:16,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:30:16,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 10:30:16,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458418707] [2023-12-19 10:30:16,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:30:16,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 10:30:16,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:30:16,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 10:30:16,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-12-19 10:30:16,513 INFO L87 Difference]: Start difference. First operand 217 states and 298 transitions. Second operand has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:30:17,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:30:17,677 INFO L93 Difference]: Finished difference Result 557 states and 748 transitions. [2023-12-19 10:30:17,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-19 10:30:17,678 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 85 [2023-12-19 10:30:17,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:30:17,682 INFO L225 Difference]: With dead ends: 557 [2023-12-19 10:30:17,682 INFO L226 Difference]: Without dead ends: 341 [2023-12-19 10:30:17,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=271, Invalid=989, Unknown=0, NotChecked=0, Total=1260 [2023-12-19 10:30:17,687 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 163 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 10:30:17,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 444 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 10:30:17,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-12-19 10:30:17,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 241. [2023-12-19 10:30:17,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 184 states have (on average 1.233695652173913) internal successors, (227), 184 states have internal predecessors, (227), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-19 10:30:17,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 323 transitions. [2023-12-19 10:30:17,745 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 323 transitions. Word has length 85 [2023-12-19 10:30:17,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:30:17,745 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 323 transitions. [2023-12-19 10:30:17,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:30:17,745 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 323 transitions. [2023-12-19 10:30:17,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-19 10:30:17,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:30:17,751 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:30:17,761 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 10:30:17,958 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 10:30:17,959 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:30:17,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:30:17,960 INFO L85 PathProgramCache]: Analyzing trace with hash -980659662, now seen corresponding path program 1 times [2023-12-19 10:30:17,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:30:17,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968488958] [2023-12-19 10:30:17,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:17,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:30:17,998 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:30:17,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [460736688] [2023-12-19 10:30:17,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:17,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:30:17,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:30:18,008 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 10:30:18,011 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 10:30:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:30:18,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-19 10:30:18,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:30:18,791 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 10:30:18,791 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:30:18,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:30:18,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968488958] [2023-12-19 10:30:18,791 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:30:18,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460736688] [2023-12-19 10:30:18,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460736688] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:30:18,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:30:18,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-19 10:30:18,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620968301] [2023-12-19 10:30:18,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:30:18,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-19 10:30:18,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:30:18,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-19 10:30:18,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-19 10:30:18,794 INFO L87 Difference]: Start difference. First operand 241 states and 323 transitions. Second operand has 14 states, 14 states have (on average 2.0) internal successors, (28), 13 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:30:19,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:30:19,736 INFO L93 Difference]: Finished difference Result 410 states and 536 transitions. [2023-12-19 10:30:19,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-19 10:30:19,736 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 13 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 85 [2023-12-19 10:30:19,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:30:19,739 INFO L225 Difference]: With dead ends: 410 [2023-12-19 10:30:19,739 INFO L226 Difference]: Without dead ends: 353 [2023-12-19 10:30:19,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=644, Unknown=0, NotChecked=0, Total=812 [2023-12-19 10:30:19,740 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 207 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 10:30:19,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 454 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 10:30:19,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-12-19 10:30:19,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 245. [2023-12-19 10:30:19,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 188 states have (on average 1.2446808510638299) internal successors, (234), 188 states have internal predecessors, (234), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-19 10:30:19,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 330 transitions. [2023-12-19 10:30:19,763 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 330 transitions. Word has length 85 [2023-12-19 10:30:19,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:30:19,764 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 330 transitions. [2023-12-19 10:30:19,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 13 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:30:19,764 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 330 transitions. [2023-12-19 10:30:19,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-19 10:30:19,765 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:30:19,765 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:30:19,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-19 10:30:19,972 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 10:30:19,973 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:30:19,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:30:19,973 INFO L85 PathProgramCache]: Analyzing trace with hash 923263135, now seen corresponding path program 1 times [2023-12-19 10:30:19,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:30:19,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500113279] [2023-12-19 10:30:19,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:19,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:30:20,005 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:30:20,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1489715976] [2023-12-19 10:30:20,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:20,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:30:20,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:30:20,014 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 10:30:20,034 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 10:30:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:30:20,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 10:30:20,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:30:20,111 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 10:30:20,111 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:30:20,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:30:20,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500113279] [2023-12-19 10:30:20,111 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:30:20,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489715976] [2023-12-19 10:30:20,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489715976] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:30:20,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:30:20,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 10:30:20,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379317027] [2023-12-19 10:30:20,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:30:20,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 10:30:20,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:30:20,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 10:30:20,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 10:30:20,113 INFO L87 Difference]: Start difference. First operand 245 states and 330 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:30:24,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 10:30:24,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:30:24,209 INFO L93 Difference]: Finished difference Result 485 states and 664 transitions. [2023-12-19 10:30:24,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 10:30:24,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 86 [2023-12-19 10:30:24,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:30:24,214 INFO L225 Difference]: With dead ends: 485 [2023-12-19 10:30:24,214 INFO L226 Difference]: Without dead ends: 345 [2023-12-19 10:30:24,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 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 10:30:24,215 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 61 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-19 10:30:24,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 111 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-12-19 10:30:24,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2023-12-19 10:30:24,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 227. [2023-12-19 10:30:24,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 170 states have (on average 1.2588235294117647) internal successors, (214), 170 states have internal predecessors, (214), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-19 10:30:24,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 310 transitions. [2023-12-19 10:30:24,241 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 310 transitions. Word has length 86 [2023-12-19 10:30:24,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:30:24,244 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 310 transitions. [2023-12-19 10:30:24,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:30:24,245 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 310 transitions. [2023-12-19 10:30:24,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-19 10:30:24,245 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:30:24,246 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:30:24,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-19 10:30:24,454 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 10:30:24,455 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:30:24,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:30:24,455 INFO L85 PathProgramCache]: Analyzing trace with hash 2008136034, now seen corresponding path program 1 times [2023-12-19 10:30:24,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:30:24,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061715357] [2023-12-19 10:30:24,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:24,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:30:24,480 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:30:24,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1975633889] [2023-12-19 10:30:24,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:24,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:30:24,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:30:24,490 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 10:30:24,505 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 10:30:24,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:30:24,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-19 10:30:24,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:30:25,105 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 10:30:25,106 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:30:25,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:30:25,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061715357] [2023-12-19 10:30:25,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:30:25,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975633889] [2023-12-19 10:30:25,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975633889] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:30:25,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:30:25,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 10:30:25,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254597667] [2023-12-19 10:30:25,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:30:25,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 10:30:25,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:30:25,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 10:30:25,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 10:30:25,109 INFO L87 Difference]: Start difference. First operand 227 states and 310 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:30:25,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:30:25,609 INFO L93 Difference]: Finished difference Result 497 states and 671 transitions. [2023-12-19 10:30:25,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 10:30:25,613 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 86 [2023-12-19 10:30:25,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:30:25,618 INFO L225 Difference]: With dead ends: 497 [2023-12-19 10:30:25,619 INFO L226 Difference]: Without dead ends: 271 [2023-12-19 10:30:25,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2023-12-19 10:30:25,620 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 129 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 10:30:25,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 309 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 10:30:25,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2023-12-19 10:30:25,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 224. [2023-12-19 10:30:25,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 167 states have (on average 1.2455089820359282) internal successors, (208), 167 states have internal predecessors, (208), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-19 10:30:25,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 304 transitions. [2023-12-19 10:30:25,647 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 304 transitions. Word has length 86 [2023-12-19 10:30:25,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:30:25,647 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 304 transitions. [2023-12-19 10:30:25,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:30:25,648 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 304 transitions. [2023-12-19 10:30:25,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-19 10:30:25,648 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:30:25,649 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:30:25,659 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 10:30:25,856 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 10:30:25,857 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:30:25,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:30:25,857 INFO L85 PathProgramCache]: Analyzing trace with hash -692497003, now seen corresponding path program 1 times [2023-12-19 10:30:25,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:30:25,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836518898] [2023-12-19 10:30:25,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:25,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:30:25,883 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:30:25,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1750862873] [2023-12-19 10:30:25,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:25,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:30:25,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:30:25,887 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 10:30:25,900 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 10:30:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:30:25,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-19 10:30:25,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:30:26,138 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-19 10:30:26,139 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:30:26,220 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 10:30:26,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:30:26,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836518898] [2023-12-19 10:30:26,220 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:30:26,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750862873] [2023-12-19 10:30:26,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750862873] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 10:30:26,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 10:30:26,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2023-12-19 10:30:26,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244850541] [2023-12-19 10:30:26,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:30:26,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 10:30:26,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:30:26,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 10:30:26,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-19 10:30:26,222 INFO L87 Difference]: Start difference. First operand 224 states and 304 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:30:26,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:30:26,321 INFO L93 Difference]: Finished difference Result 267 states and 356 transitions. [2023-12-19 10:30:26,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 10:30:26,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 87 [2023-12-19 10:30:26,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:30:26,323 INFO L225 Difference]: With dead ends: 267 [2023-12-19 10:30:26,323 INFO L226 Difference]: Without dead ends: 265 [2023-12-19 10:30:26,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-19 10:30:26,325 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 25 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 10:30:26,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 215 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 10:30:26,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-12-19 10:30:26,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 255. [2023-12-19 10:30:26,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 198 states have (on average 1.2424242424242424) internal successors, (246), 198 states have internal predecessors, (246), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-19 10:30:26,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 342 transitions. [2023-12-19 10:30:26,362 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 342 transitions. Word has length 87 [2023-12-19 10:30:26,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:30:26,362 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 342 transitions. [2023-12-19 10:30:26,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:30:26,362 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 342 transitions. [2023-12-19 10:30:26,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-19 10:30:26,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:30:26,363 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:30:26,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 10:30:26,570 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 10:30:26,570 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:30:26,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:30:26,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1793365449, now seen corresponding path program 1 times [2023-12-19 10:30:26,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:30:26,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880629278] [2023-12-19 10:30:26,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:26,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:30:26,584 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:30:26,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2083122872] [2023-12-19 10:30:26,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:26,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:30:26,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:30:26,586 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 10:30:26,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 10:30:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:30:26,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 10:30:26,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:30:26,748 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 10:30:26,748 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:30:26,850 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-19 10:30:26,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:30:26,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880629278] [2023-12-19 10:30:26,851 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:30:26,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083122872] [2023-12-19 10:30:26,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083122872] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 10:30:26,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 10:30:26,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-19 10:30:26,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780418433] [2023-12-19 10:30:26,853 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 10:30:26,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 10:30:26,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:30:26,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 10:30:26,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-19 10:30:26,854 INFO L87 Difference]: Start difference. First operand 255 states and 342 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-19 10:30:27,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:30:27,157 INFO L93 Difference]: Finished difference Result 607 states and 813 transitions. [2023-12-19 10:30:27,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 10:30:27,157 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 87 [2023-12-19 10:30:27,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:30:27,161 INFO L225 Difference]: With dead ends: 607 [2023-12-19 10:30:27,162 INFO L226 Difference]: Without dead ends: 341 [2023-12-19 10:30:27,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2023-12-19 10:30:27,164 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 144 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 10:30:27,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 178 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 10:30:27,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-12-19 10:30:27,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 323. [2023-12-19 10:30:27,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 238 states have (on average 1.1512605042016806) internal successors, (274), 238 states have internal predecessors, (274), 72 states have call successors, (72), 12 states have call predecessors, (72), 12 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-19 10:30:27,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 418 transitions. [2023-12-19 10:30:27,193 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 418 transitions. Word has length 87 [2023-12-19 10:30:27,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:30:27,194 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 418 transitions. [2023-12-19 10:30:27,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-19 10:30:27,195 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 418 transitions. [2023-12-19 10:30:27,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-19 10:30:27,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:30:27,195 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:30:27,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 10:30:27,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:30:27,403 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:30:27,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:30:27,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1387157367, now seen corresponding path program 1 times [2023-12-19 10:30:27,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:30:27,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982236983] [2023-12-19 10:30:27,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:27,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:30:27,427 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:30:27,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [179808975] [2023-12-19 10:30:27,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:27,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:30:27,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:30:27,431 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 10:30:27,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 10:30:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:30:27,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 10:30:27,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:30:27,539 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 10:30:27,539 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:30:27,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:30:27,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982236983] [2023-12-19 10:30:27,540 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:30:27,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179808975] [2023-12-19 10:30:27,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179808975] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:30:27,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:30:27,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 10:30:27,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19274455] [2023-12-19 10:30:27,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:30:27,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 10:30:27,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:30:27,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 10:30:27,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 10:30:27,542 INFO L87 Difference]: Start difference. First operand 323 states and 418 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:30:27,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:30:27,569 INFO L93 Difference]: Finished difference Result 577 states and 749 transitions. [2023-12-19 10:30:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 10:30:27,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 88 [2023-12-19 10:30:27,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:30:27,570 INFO L225 Difference]: With dead ends: 577 [2023-12-19 10:30:27,570 INFO L226 Difference]: Without dead ends: 255 [2023-12-19 10:30:27,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 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 10:30:27,572 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 10:30:27,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 10:30:27,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-12-19 10:30:27,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2023-12-19 10:30:27,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 184 states have (on average 1.141304347826087) internal successors, (210), 184 states have internal predecessors, (210), 60 states have call successors, (60), 10 states have call predecessors, (60), 10 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-19 10:30:27,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 330 transitions. [2023-12-19 10:30:27,594 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 330 transitions. Word has length 88 [2023-12-19 10:30:27,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:30:27,594 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 330 transitions. [2023-12-19 10:30:27,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:30:27,594 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 330 transitions. [2023-12-19 10:30:27,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-19 10:30:27,595 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:30:27,595 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:30:27,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-19 10:30:27,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-19 10:30:27,802 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:30:27,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:30:27,803 INFO L85 PathProgramCache]: Analyzing trace with hash -508138564, now seen corresponding path program 1 times [2023-12-19 10:30:27,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:30:27,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863028093] [2023-12-19 10:30:27,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:27,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:30:27,815 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:30:27,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [571432961] [2023-12-19 10:30:27,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:30:27,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:30:27,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:30:27,820 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 10:30:27,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-19 10:30:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 10:30:27,909 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-19 10:30:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 10:30:27,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-19 10:30:27,980 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-19 10:30:27,981 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 10:30:27,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-19 10:30:28,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 10:30:28,190 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:30:28,192 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 10:30:28,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 10:30:28 BoogieIcfgContainer [2023-12-19 10:30:28,244 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 10:30:28,245 INFO L158 Benchmark]: Toolchain (without parser) took 17279.36ms. Allocated memory was 199.2MB in the beginning and 304.1MB in the end (delta: 104.9MB). Free memory was 154.4MB in the beginning and 121.4MB in the end (delta: 33.0MB). Peak memory consumption was 138.7MB. Max. memory is 8.0GB. [2023-12-19 10:30:28,245 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 199.2MB. Free memory is still 156.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 10:30:28,245 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.37ms. Allocated memory is still 199.2MB. Free memory was 154.4MB in the beginning and 141.2MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-19 10:30:28,246 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.36ms. Allocated memory is still 199.2MB. Free memory was 141.2MB in the beginning and 138.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 10:30:28,246 INFO L158 Benchmark]: Boogie Preprocessor took 69.96ms. Allocated memory is still 199.2MB. Free memory was 138.0MB in the beginning and 134.5MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 10:30:28,246 INFO L158 Benchmark]: RCFGBuilder took 526.38ms. Allocated memory is still 199.2MB. Free memory was 134.5MB in the beginning and 112.5MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-19 10:30:28,246 INFO L158 Benchmark]: TraceAbstraction took 16321.60ms. Allocated memory was 199.2MB in the beginning and 304.1MB in the end (delta: 104.9MB). Free memory was 111.8MB in the beginning and 121.4MB in the end (delta: -9.6MB). Peak memory consumption was 95.7MB. Max. memory is 8.0GB. [2023-12-19 10:30:28,247 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 199.2MB. Free memory is still 156.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 293.37ms. Allocated memory is still 199.2MB. Free memory was 154.4MB in the beginning and 141.2MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.36ms. Allocated memory is still 199.2MB. Free memory was 141.2MB in the beginning and 138.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 69.96ms. Allocated memory is still 199.2MB. Free memory was 138.0MB in the beginning and 134.5MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 526.38ms. Allocated memory is still 199.2MB. Free memory was 134.5MB in the beginning and 112.5MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 16321.60ms. Allocated memory was 199.2MB in the beginning and 304.1MB in the end (delta: 104.9MB). Free memory was 111.8MB in the beginning and 121.4MB in the end (delta: -9.6MB). Peak memory consumption was 95.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 someBinaryFLOATComparisonOperation at line 89, overapproximation of bitwiseOr at line 89, overapproximation of bitwiseAnd at line 46. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 99.25; [L23] signed short int var_1_7 = 18477; [L24] signed short int var_1_8 = 5; [L25] float var_1_9 = 5.8; [L26] float var_1_10 = 0.5; [L27] unsigned char var_1_11 = 16; [L28] unsigned char var_1_12 = 50; [L29] unsigned char var_1_13 = 1; [L30] unsigned long int var_1_14 = 256; [L31] unsigned char var_1_15 = 0; [L32] unsigned char last_1_var_1_11 = 16; [L33] unsigned long int last_1_var_1_14 = 256; [L93] isInitial = 1 [L94] FCALL initially() [L95] COND TRUE 1 [L96] CALL updateLastVariables() [L85] last_1_var_1_11 = var_1_11 [L86] last_1_var_1_14 = var_1_14 [L96] RET updateLastVariables() [L97] CALL updateVariables() [L64] var_1_7 = __VERIFIER_nondet_short() [L65] CALL assume_abort_if_not(var_1_7 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=5, var_1_9=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=5, var_1_9=29/5] [L65] RET assume_abort_if_not(var_1_7 >= 16383) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=5, var_1_9=29/5] [L66] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=5, var_1_9=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=5, var_1_9=29/5] [L66] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=5, var_1_9=29/5] [L67] var_1_8 = __VERIFIER_nondet_short() [L68] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=29/5] [L68] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=29/5] [L69] CALL assume_abort_if_not(var_1_8 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=29/5] [L69] RET assume_abort_if_not(var_1_8 <= 16383) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=29/5] [L70] var_1_9 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L71] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L72] var_1_10 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L73] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L74] var_1_12 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L75] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L76] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L76] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L77] var_1_13 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L78] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L79] CALL assume_abort_if_not(var_1_13 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L79] RET assume_abort_if_not(var_1_13 <= 254) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L80] var_1_15 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L81] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L82] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L82] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L97] RET updateVariables() [L98] CALL step() [L37] signed short int stepLocal_3 = var_1_8; [L38] unsigned long int stepLocal_2 = last_1_var_1_14; VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, stepLocal_3=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L39] COND FALSE !(last_1_var_1_14 > stepLocal_3) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, stepLocal_3=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L46] EXPR var_1_11 & var_1_7 VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, stepLocal_3=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L46] COND FALSE !((var_1_11 & var_1_7) > ((var_1_12 * last_1_var_1_14) * (var_1_11 + var_1_11))) [L51] var_1_14 = var_1_7 VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, stepLocal_3=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L53] unsigned char stepLocal_1 = var_1_11; VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_1=16, stepLocal_2=256, stepLocal_3=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L54] EXPR var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_1=16, stepLocal_2=256, stepLocal_3=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L54] unsigned long int stepLocal_0 = var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))); [L55] COND FALSE !(stepLocal_0 != var_1_11) [L60] var_1_1 = 10.5f VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_0=16, stepLocal_1=16, stepLocal_2=256, stepLocal_3=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=21/2, var_1_7=16383, var_1_8=256] [L98] RET step() [L99] CALL, EXPR property() [L89] EXPR var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=21/2, var_1_7=16383, var_1_8=256] [L89] EXPR ((((var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14)))) != var_1_11) ? ((var_1_11 == (var_1_11 - (var_1_7 - var_1_11))) ? (var_1_1 == ((float) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))) : 1) : (var_1_1 == ((float) 10.5f))) && ((last_1_var_1_14 > var_1_8) ? ((((last_1_var_1_11 - var_1_8) + var_1_7) > last_1_var_1_14) ? (var_1_11 == ((unsigned char) ((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13))))) : (var_1_11 == ((unsigned char) var_1_12))) : 1)) && (((var_1_11 & var_1_7) > ((var_1_12 * last_1_var_1_14) * (var_1_11 + var_1_11))) ? ((var_1_15 && (var_1_9 > var_1_10)) ? (var_1_14 == ((unsigned long int) var_1_7)) : 1) : (var_1_14 == ((unsigned long int) var_1_7))) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=21/2, var_1_7=16383, var_1_8=256] [L89-L90] return ((((var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14)))) != var_1_11) ? ((var_1_11 == (var_1_11 - (var_1_7 - var_1_11))) ? (var_1_1 == ((float) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))) : 1) : (var_1_1 == ((float) 10.5f))) && ((last_1_var_1_14 > var_1_8) ? ((((last_1_var_1_11 - var_1_8) + var_1_7) > last_1_var_1_14) ? (var_1_11 == ((unsigned char) ((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13))))) : (var_1_11 == ((unsigned char) var_1_12))) : 1)) && (((var_1_11 & var_1_7) > ((var_1_12 * last_1_var_1_14) * (var_1_11 + var_1_11))) ? ((var_1_15 && (var_1_9 > var_1_10)) ? (var_1_14 == ((unsigned long int) var_1_7)) : 1) : (var_1_14 == ((unsigned long int) var_1_7))) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=21/2, var_1_7=16383, var_1_8=256] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=21/2, var_1_7=16383, var_1_8=256] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.2s, OverallIterations: 11, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 972 SdHoareTripleChecker+Valid, 6.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 971 mSDsluCounter, 2301 SdHoareTripleChecker+Invalid, 5.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1568 mSDsCounter, 181 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2433 IncrementalHoareTripleChecker+Invalid, 2615 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 181 mSolverCounterUnsat, 733 mSDtfsCounter, 2433 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1181 GetRequests, 1038 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 703 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=323occurred in iteration=9, InterpolantAutomatonStates: 121, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 418 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1025 NumberOfCodeBlocks, 1025 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1099 ConstructedInterpolants, 0 QuantifiedInterpolants, 4159 SizeOfPredicates, 64 NumberOfNonLiveVariables, 2127 ConjunctsInSsa, 117 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 3285/3432 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 10:30:28,279 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...