/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_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 23:02:22,647 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 23:02:22,725 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 23:02:22,731 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 23:02:22,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 23:02:22,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 23:02:22,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 23:02:22,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 23:02:22,766 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 23:02:22,770 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 23:02:22,770 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 23:02:22,771 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 23:02:22,771 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 23:02:22,772 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 23:02:22,772 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 23:02:22,773 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 23:02:22,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 23:02:22,773 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 23:02:22,773 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 23:02:22,774 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 23:02:22,775 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 23:02:22,775 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 23:02:22,775 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 23:02:22,775 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 23:02:22,776 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 23:02:22,776 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 23:02:22,776 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 23:02:22,776 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 23:02:22,776 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 23:02:22,777 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 23:02:22,777 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 23:02:22,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 23:02:22,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 23:02:22,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 23:02:22,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 23:02:22,778 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 23:02:22,778 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 23:02:22,778 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 23:02:22,779 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 23:02:22,779 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 23:02:22,779 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 23:02:22,779 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 23:02:22,779 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 23:02:22,779 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 23:02:22,780 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 23:02:22,780 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 23:02:22,780 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 23:02:22,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 23:02:23,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 23:02:23,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 23:02:23,020 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 23:02:23,020 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 23:02:23,021 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i [2023-12-24 23:02:24,088 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 23:02:24,256 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 23:02:24,257 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i [2023-12-24 23:02:24,263 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9061ef45b/c22c671e3329468cb6c4501ba7f56d09/FLAGbaebc1ad6 [2023-12-24 23:02:24,276 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9061ef45b/c22c671e3329468cb6c4501ba7f56d09 [2023-12-24 23:02:24,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 23:02:24,282 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 23:02:24,284 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 23:02:24,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 23:02:24,288 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 23:02:24,289 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 11:02:24" (1/1) ... [2023-12-24 23:02:24,290 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54abfb7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:02:24, skipping insertion in model container [2023-12-24 23:02:24,290 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 11:02:24" (1/1) ... [2023-12-24 23:02:24,308 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 23:02:24,445 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i[895,908] [2023-12-24 23:02:24,461 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 23:02:24,471 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 23:02:24,484 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i[895,908] [2023-12-24 23:02:24,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 23:02:24,504 INFO L206 MainTranslator]: Completed translation [2023-12-24 23:02:24,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:02:24 WrapperNode [2023-12-24 23:02:24,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 23:02:24,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 23:02:24,505 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 23:02:24,505 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 23:02:24,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:02:24" (1/1) ... [2023-12-24 23:02:24,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:02:24" (1/1) ... [2023-12-24 23:02:24,539 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 46 [2023-12-24 23:02:24,539 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 23:02:24,539 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 23:02:24,540 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 23:02:24,540 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 23:02:24,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:02:24" (1/1) ... [2023-12-24 23:02:24,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:02:24" (1/1) ... [2023-12-24 23:02:24,552 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:02:24" (1/1) ... [2023-12-24 23:02:24,567 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]. [2023-12-24 23:02:24,568 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:02:24" (1/1) ... [2023-12-24 23:02:24,568 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:02:24" (1/1) ... [2023-12-24 23:02:24,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:02:24" (1/1) ... [2023-12-24 23:02:24,573 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:02:24" (1/1) ... [2023-12-24 23:02:24,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:02:24" (1/1) ... [2023-12-24 23:02:24,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:02:24" (1/1) ... [2023-12-24 23:02:24,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 23:02:24,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 23:02:24,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 23:02:24,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 23:02:24,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:02:24" (1/1) ... [2023-12-24 23:02:24,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 23:02:24,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 23:02:24,609 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) [2023-12-24 23:02:24,623 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 [2023-12-24 23:02:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 23:02:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 23:02:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 23:02:24,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 23:02:24,698 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 23:02:24,702 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 23:02:24,854 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 23:02:24,871 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 23:02:24,871 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 23:02:24,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 11:02:24 BoogieIcfgContainer [2023-12-24 23:02:24,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 23:02:24,891 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 23:02:24,892 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 23:02:24,894 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 23:02:24,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 11:02:24" (1/3) ... [2023-12-24 23:02:24,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e21f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 11:02:24, skipping insertion in model container [2023-12-24 23:02:24,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:02:24" (2/3) ... [2023-12-24 23:02:24,896 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e21f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 11:02:24, skipping insertion in model container [2023-12-24 23:02:24,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 11:02:24" (3/3) ... [2023-12-24 23:02:24,897 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2023-12-24 23:02:24,911 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 23:02:24,911 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 23:02:24,950 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 23:02:24,955 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;@3b0b7e53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 23:02:24,956 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 23:02:24,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:02:24,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-24 23:02:24,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:02:24,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-24 23:02:24,967 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:02:24,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:02:24,972 INFO L85 PathProgramCache]: Analyzing trace with hash -169614052, now seen corresponding path program 1 times [2023-12-24 23:02:24,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:02:24,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795233863] [2023-12-24 23:02:24,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 23:02:24,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:02:24,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:02:24,988 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 23:02:25,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-24 23:02:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 23:02:25,067 WARN L260 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-24 23:02:25,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:02:25,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:02:25,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 23:02:25,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:02:25,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795233863] [2023-12-24 23:02:25,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795233863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 23:02:25,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 23:02:25,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-24 23:02:25,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425758989] [2023-12-24 23:02:25,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 23:02:25,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 23:02:25,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:02:25,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 23:02:25,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-24 23:02:25,346 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:02:25,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:02:25,467 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2023-12-24 23:02:25,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 23:02:25,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-24 23:02:25,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:02:25,476 INFO L225 Difference]: With dead ends: 27 [2023-12-24 23:02:25,476 INFO L226 Difference]: Without dead ends: 9 [2023-12-24 23:02:25,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-24 23:02:25,481 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 23 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 23:02:25,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 23 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 23:02:25,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-24 23:02:25,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-12-24 23:02:25,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:02:25,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-12-24 23:02:25,505 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2023-12-24 23:02:25,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:02:25,505 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-12-24 23:02:25,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:02:25,506 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-12-24 23:02:25,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-24 23:02:25,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:02:25,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 23:02:25,511 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-24 23:02:25,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:02:25,709 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:02:25,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:02:25,710 INFO L85 PathProgramCache]: Analyzing trace with hash -961462515, now seen corresponding path program 1 times [2023-12-24 23:02:25,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:02:25,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233248165] [2023-12-24 23:02:25,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 23:02:25,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:02:25,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:02:25,713 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 23:02:25,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-24 23:02:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 23:02:25,745 WARN L260 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-24 23:02:25,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:02:25,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:02:25,974 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 23:02:26,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:02:26,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:02:26,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233248165] [2023-12-24 23:02:26,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233248165] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 23:02:26,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 23:02:26,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2023-12-24 23:02:26,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610780999] [2023-12-24 23:02:26,111 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 23:02:26,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-24 23:02:26,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:02:26,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-24 23:02:26,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-12-24 23:02:26,115 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:02:26,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:02:26,420 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2023-12-24 23:02:26,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-24 23:02:26,421 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-24 23:02:26,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:02:26,421 INFO L225 Difference]: With dead ends: 18 [2023-12-24 23:02:26,421 INFO L226 Difference]: Without dead ends: 12 [2023-12-24 23:02:26,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2023-12-24 23:02:26,423 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 21 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 23:02:26,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 15 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 23:02:26,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-12-24 23:02:26,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-12-24 23:02:26,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:02:26,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-12-24 23:02:26,427 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2023-12-24 23:02:26,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:02:26,428 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2023-12-24 23:02:26,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:02:26,428 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-12-24 23:02:26,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-24 23:02:26,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:02:26,429 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 23:02:26,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-24 23:02:26,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:02:26,630 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:02:26,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:02:26,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1801673052, now seen corresponding path program 2 times [2023-12-24 23:02:26,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:02:26,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589514351] [2023-12-24 23:02:26,631 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-24 23:02:26,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:02:26,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:02:26,632 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 23:02:26,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-24 23:02:26,660 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-24 23:02:26,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 23:02:26,661 WARN L260 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-24 23:02:26,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:02:27,029 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:02:27,029 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 23:02:27,309 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:02:27,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:02:27,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589514351] [2023-12-24 23:02:27,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589514351] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 23:02:27,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 23:02:27,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2023-12-24 23:02:27,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419565393] [2023-12-24 23:02:27,311 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 23:02:27,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-24 23:02:27,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:02:27,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-24 23:02:27,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-12-24 23:02:27,314 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:02:28,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:02:28,181 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2023-12-24 23:02:28,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-24 23:02:28,182 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-12-24 23:02:28,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:02:28,182 INFO L225 Difference]: With dead ends: 24 [2023-12-24 23:02:28,183 INFO L226 Difference]: Without dead ends: 18 [2023-12-24 23:02:28,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2023-12-24 23:02:28,184 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 50 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 23:02:28,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 16 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 23:02:28,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-12-24 23:02:28,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-12-24 23:02:28,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:02:28,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-12-24 23:02:28,191 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2023-12-24 23:02:28,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:02:28,191 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-12-24 23:02:28,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:02:28,192 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-12-24 23:02:28,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-24 23:02:28,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:02:28,192 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 23:02:28,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-24 23:02:28,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:02:28,395 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:02:28,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:02:28,396 INFO L85 PathProgramCache]: Analyzing trace with hash -911619140, now seen corresponding path program 3 times [2023-12-24 23:02:28,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:02:28,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725502473] [2023-12-24 23:02:28,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-24 23:02:28,397 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:02:28,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:02:28,398 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 23:02:28,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-24 23:02:28,443 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-12-24 23:02:28,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 23:02:28,445 WARN L260 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-24 23:02:28,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:02:29,174 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:02:29,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 23:02:29,851 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:02:29,851 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:02:29,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725502473] [2023-12-24 23:02:29,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725502473] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 23:02:29,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 23:02:29,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 29 [2023-12-24 23:02:29,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758655214] [2023-12-24 23:02:29,852 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 23:02:29,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-24 23:02:29,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:02:29,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-24 23:02:29,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2023-12-24 23:02:29,854 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 29 states, 29 states have (on average 1.103448275862069) internal successors, (32), 29 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:02:32,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:02:32,830 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2023-12-24 23:02:32,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-24 23:02:32,831 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.103448275862069) internal successors, (32), 29 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-12-24 23:02:32,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:02:32,832 INFO L225 Difference]: With dead ends: 36 [2023-12-24 23:02:32,832 INFO L226 Difference]: Without dead ends: 30 [2023-12-24 23:02:32,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=614, Invalid=1366, Unknown=0, NotChecked=0, Total=1980 [2023-12-24 23:02:32,833 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 136 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-24 23:02:32,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 14 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-24 23:02:32,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-12-24 23:02:32,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-12-24 23:02:32,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:02:32,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2023-12-24 23:02:32,849 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 17 [2023-12-24 23:02:32,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:02:32,849 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2023-12-24 23:02:32,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.103448275862069) internal successors, (32), 29 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:02:32,851 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2023-12-24 23:02:32,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-24 23:02:32,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:02:32,851 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 23:02:32,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-24 23:02:33,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:02:33,052 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:02:33,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:02:33,053 INFO L85 PathProgramCache]: Analyzing trace with hash 662100092, now seen corresponding path program 4 times [2023-12-24 23:02:33,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:02:33,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1274782718] [2023-12-24 23:02:33,053 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-24 23:02:33,053 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:02:33,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:02:33,055 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 23:02:33,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-24 23:02:33,121 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-24 23:02:33,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 23:02:33,124 WARN L260 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 77 conjunts are in the unsatisfiable core [2023-12-24 23:02:33,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:02:34,607 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:02:34,608 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 23:02:36,238 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:02:36,238 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:02:36,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1274782718] [2023-12-24 23:02:36,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1274782718] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 23:02:36,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 23:02:36,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27] total 53 [2023-12-24 23:02:36,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612408354] [2023-12-24 23:02:36,239 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 23:02:36,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2023-12-24 23:02:36,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:02:36,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2023-12-24 23:02:36,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=660, Invalid=2096, Unknown=0, NotChecked=0, Total=2756 [2023-12-24 23:02:36,242 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 53 states, 53 states have (on average 1.0566037735849056) internal successors, (56), 53 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:02:50,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:02:50,304 INFO L93 Difference]: Finished difference Result 60 states and 83 transitions. [2023-12-24 23:02:50,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-12-24 23:02:50,306 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 1.0566037735849056) internal successors, (56), 53 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-12-24 23:02:50,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:02:50,307 INFO L225 Difference]: With dead ends: 60 [2023-12-24 23:02:50,307 INFO L226 Difference]: Without dead ends: 54 [2023-12-24 23:02:50,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1158 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=2054, Invalid=4426, Unknown=0, NotChecked=0, Total=6480 [2023-12-24 23:02:50,310 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 428 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-24 23:02:50,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 35 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-24 23:02:50,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-12-24 23:02:50,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-12-24 23:02:50,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 53 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:02:50,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2023-12-24 23:02:50,342 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 29 [2023-12-24 23:02:50,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:02:50,343 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2023-12-24 23:02:50,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 1.0566037735849056) internal successors, (56), 53 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:02:50,343 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2023-12-24 23:02:50,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-24 23:02:50,344 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:02:50,344 INFO L195 NwaCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 23:02:50,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-24 23:02:50,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:02:50,546 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:02:50,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:02:50,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1359375876, now seen corresponding path program 5 times [2023-12-24 23:02:50,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:02:50,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429235061] [2023-12-24 23:02:50,547 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-24 23:02:50,547 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:02:50,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:02:50,549 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 23:02:50,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-24 23:02:50,861 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2023-12-24 23:02:50,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 23:02:50,873 WARN L260 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 149 conjunts are in the unsatisfiable core [2023-12-24 23:02:50,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:02:55,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:02:55,212 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 23:03:00,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:03:00,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:03:00,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429235061] [2023-12-24 23:03:00,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429235061] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 23:03:00,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 23:03:00,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 51] total 101 [2023-12-24 23:03:00,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697655722] [2023-12-24 23:03:00,937 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 23:03:00,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2023-12-24 23:03:00,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:03:00,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2023-12-24 23:03:00,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2460, Invalid=7640, Unknown=0, NotChecked=0, Total=10100 [2023-12-24 23:03:00,941 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 101 states, 101 states have (on average 1.0297029702970297) internal successors, (104), 101 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:04:40,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 23:04:40,208 INFO L93 Difference]: Finished difference Result 108 states and 155 transitions. [2023-12-24 23:04:40,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-12-24 23:04:40,212 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 101 states have (on average 1.0297029702970297) internal successors, (104), 101 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-24 23:04:40,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 23:04:40,214 INFO L225 Difference]: With dead ends: 108 [2023-12-24 23:04:40,214 INFO L226 Difference]: Without dead ends: 102 [2023-12-24 23:04:40,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4050 ImplicationChecksByTransitivity, 103.9s TimeCoverageRelationStatistics Valid=7526, Invalid=15730, Unknown=0, NotChecked=0, Total=23256 [2023-12-24 23:04:40,219 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 1447 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 2654 mSolverCounterSat, 1129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 3783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1129 IncrementalHoareTripleChecker+Valid, 2654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-24 23:04:40,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1447 Valid, 35 Invalid, 3783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1129 Valid, 2654 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-24 23:04:40,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-24 23:04:40,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-12-24 23:04:40,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.00990099009901) internal successors, (102), 101 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:04:40,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2023-12-24 23:04:40,355 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 53 [2023-12-24 23:04:40,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 23:04:40,355 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2023-12-24 23:04:40,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 101 states have (on average 1.0297029702970297) internal successors, (104), 101 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:04:40,355 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2023-12-24 23:04:40,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-24 23:04:40,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 23:04:40,357 INFO L195 NwaCegarLoop]: trace histogram [94, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 23:04:40,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-24 23:04:40,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:04:40,559 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 23:04:40,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 23:04:40,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1088521468, now seen corresponding path program 6 times [2023-12-24 23:04:40,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 23:04:40,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009494182] [2023-12-24 23:04:40,560 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-24 23:04:40,560 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:04:40,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 23:04:40,561 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 23:04:40,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-24 23:04:41,206 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 48 check-sat command(s) [2023-12-24 23:04:41,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-24 23:04:41,219 WARN L260 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 293 conjunts are in the unsatisfiable core [2023-12-24 23:04:41,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 23:04:54,829 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:04:54,829 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 23:05:14,540 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-24 23:05:14,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 23:05:14,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1009494182] [2023-12-24 23:05:14,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1009494182] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 23:05:14,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 23:05:14,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 99] total 197 [2023-12-24 23:05:14,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120203843] [2023-12-24 23:05:14,541 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 23:05:14,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 197 states [2023-12-24 23:05:14,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 23:05:14,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 197 interpolants. [2023-12-24 23:05:14,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9516, Invalid=29096, Unknown=0, NotChecked=0, Total=38612 [2023-12-24 23:05:14,553 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand has 197 states, 197 states have (on average 1.015228426395939) internal successors, (200), 197 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 23:05:42,766 WARN L293 SmtUtils]: Spent 5.22s on a formula simplification that was a NOOP. DAG size: 816 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:06:10,581 WARN L293 SmtUtils]: Spent 6.41s on a formula simplification that was a NOOP. DAG size: 808 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:06:19,691 WARN L293 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 816 DAG size of output: 393 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:06:37,442 WARN L293 SmtUtils]: Spent 5.70s on a formula simplification that was a NOOP. DAG size: 799 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:06:56,090 WARN L293 SmtUtils]: Spent 6.65s on a formula simplification that was a NOOP. DAG size: 791 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:07:15,109 WARN L293 SmtUtils]: Spent 7.10s on a formula simplification that was a NOOP. DAG size: 782 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:07:33,495 WARN L293 SmtUtils]: Spent 6.32s on a formula simplification that was a NOOP. DAG size: 774 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:07:51,031 WARN L293 SmtUtils]: Spent 5.82s on a formula simplification that was a NOOP. DAG size: 765 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:08:10,336 WARN L293 SmtUtils]: Spent 6.74s on a formula simplification that was a NOOP. DAG size: 757 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:08:30,064 WARN L293 SmtUtils]: Spent 7.27s on a formula simplification that was a NOOP. DAG size: 748 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:08:49,811 WARN L293 SmtUtils]: Spent 7.53s on a formula simplification that was a NOOP. DAG size: 740 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:09:07,738 WARN L293 SmtUtils]: Spent 5.91s on a formula simplification that was a NOOP. DAG size: 731 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:09:26,247 WARN L293 SmtUtils]: Spent 6.75s on a formula simplification that was a NOOP. DAG size: 723 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:09:44,754 WARN L293 SmtUtils]: Spent 6.75s on a formula simplification that was a NOOP. DAG size: 714 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:10:02,100 WARN L293 SmtUtils]: Spent 5.81s on a formula simplification that was a NOOP. DAG size: 706 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:10:18,969 WARN L293 SmtUtils]: Spent 5.53s on a formula simplification that was a NOOP. DAG size: 697 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:10:36,453 WARN L293 SmtUtils]: Spent 6.06s on a formula simplification that was a NOOP. DAG size: 689 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:10:53,018 WARN L293 SmtUtils]: Spent 5.66s on a formula simplification that was a NOOP. DAG size: 680 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:11:38,116 WARN L293 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 655 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 23:11:53,027 WARN L293 SmtUtils]: Spent 5.09s on a formula simplification that was a NOOP. DAG size: 646 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-12-24 23:16:50,720 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 23:16:50,720 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 23:16:50,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2023-12-24 23:16:50,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 250 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11373 ImplicationChecksByTransitivity, 713.4s TimeCoverageRelationStatistics Valid=19972, Invalid=43280, Unknown=0, NotChecked=0, Total=63252 [2023-12-24 23:16:50,747 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 3749 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 9952 mSolverCounterSat, 1277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3749 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 11229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1277 IncrementalHoareTripleChecker+Valid, 9952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2023-12-24 23:16:50,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3749 Valid, 3 Invalid, 11229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1277 Valid, 9952 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2023-12-24 23:16:50,748 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 23:16:50,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-24 23:16:50,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 23:16:50,954 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (102states) and FLOYD_HOARE automaton (currently 153 states, 197 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 252 known predicates. [2023-12-24 23:16:50,958 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1] [2023-12-24 23:16:50,959 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 23:16:50,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 11:16:50 BoogieIcfgContainer [2023-12-24 23:16:50,961 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 23:16:50,961 INFO L158 Benchmark]: Toolchain (without parser) took 866679.50ms. Allocated memory was 201.3MB in the beginning and 281.0MB in the end (delta: 79.7MB). Free memory was 140.1MB in the beginning and 205.0MB in the end (delta: -64.9MB). Peak memory consumption was 158.8MB. Max. memory is 8.0GB. [2023-12-24 23:16:50,961 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 201.3MB. Free memory is still 149.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 23:16:50,962 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.13ms. Allocated memory is still 201.3MB. Free memory was 140.1MB in the beginning and 128.9MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-24 23:16:50,962 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.77ms. Allocated memory is still 201.3MB. Free memory was 128.6MB in the beginning and 127.3MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-24 23:16:50,962 INFO L158 Benchmark]: Boogie Preprocessor took 38.33ms. Allocated memory is still 201.3MB. Free memory was 127.3MB in the beginning and 125.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 23:16:50,962 INFO L158 Benchmark]: RCFGBuilder took 292.80ms. Allocated memory is still 201.3MB. Free memory was 125.4MB in the beginning and 163.8MB in the end (delta: -38.4MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. [2023-12-24 23:16:50,964 INFO L158 Benchmark]: TraceAbstraction took 866069.24ms. Allocated memory is still 281.0MB. Free memory was 248.3MB in the beginning and 205.0MB in the end (delta: 43.2MB). Peak memory consumption was 186.3MB. Max. memory is 8.0GB. [2023-12-24 23:16:50,965 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 201.3MB. Free memory is still 149.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 220.13ms. Allocated memory is still 201.3MB. Free memory was 140.1MB in the beginning and 128.9MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.77ms. Allocated memory is still 201.3MB. Free memory was 128.6MB in the beginning and 127.3MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.33ms. Allocated memory is still 201.3MB. Free memory was 127.3MB in the beginning and 125.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 292.80ms. Allocated memory is still 201.3MB. Free memory was 125.4MB in the beginning and 163.8MB in the end (delta: -38.4MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. * TraceAbstraction took 866069.24ms. Allocated memory is still 281.0MB. Free memory was 248.3MB in the beginning and 205.0MB in the end (delta: 43.2MB). Peak memory consumption was 186.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was constructing difference of abstraction (102states) and FLOYD_HOARE automaton (currently 153 states, 197 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 252 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 866.0s, OverallIterations: 7, TraceHistogramMax: 94, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 813.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5854 SdHoareTripleChecker+Valid, 17.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5854 mSDsluCounter, 141 SdHoareTripleChecker+Invalid, 15.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 118 mSDsCounter, 2770 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13785 IncrementalHoareTripleChecker+Invalid, 16555 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2770 mSolverCounterUnsat, 23 mSDtfsCounter, 13785 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 603 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 570 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17111 ImplicationChecksByTransitivity, 838.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=6, InterpolantAutomatonStates: 222, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 49.2s InterpolantComputationTime, 226 NumberOfCodeBlocks, 226 NumberOfCodeBlocksAsserted, 83 NumberOfCheckSat, 432 ConstructedInterpolants, 0 QuantifiedInterpolants, 7580 SizeOfPredicates, 42 NumberOfNonLiveVariables, 862 ConjunctsInSsa, 609 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 0/11730 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown