/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/eca-rers2012/Problem13_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 10:59:58,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 10:59:58,896 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 10:59:58,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 10:59:58,902 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 10:59:58,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 10:59:58,930 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 10:59:58,931 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 10:59:58,931 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 10:59:58,935 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 10:59:58,935 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 10:59:58,935 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 10:59:58,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 10:59:58,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 10:59:58,937 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 10:59:58,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 10:59:58,938 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 10:59:58,938 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 10:59:58,939 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 10:59:58,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 10:59:58,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 10:59:58,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 10:59:58,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 10:59:58,940 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 10:59:58,940 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 10:59:58,940 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 10:59:58,941 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 10:59:58,941 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 10:59:58,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 10:59:58,941 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 10:59:58,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 10:59:58,943 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 10:59:58,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 10:59:58,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 10:59:58,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 10:59:58,943 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 10:59:58,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 10:59:58,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 10:59:58,944 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 10:59:58,944 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 10:59:58,944 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 10:59:58,945 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 10:59:58,945 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 10:59:58,945 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 10:59:58,946 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 10:59:58,946 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 10:59:58,946 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 10:59:59,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 10:59:59,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 10:59:59,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 10:59:59,207 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 10:59:59,208 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 10:59:59,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label05.c [2023-12-22 11:00:00,399 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 11:00:00,857 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 11:00:00,857 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label05.c [2023-12-22 11:00:00,894 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df04b976c/2c952ce49f6041f0afb08d8fb172fbe5/FLAG6d533ba0f [2023-12-22 11:00:00,910 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df04b976c/2c952ce49f6041f0afb08d8fb172fbe5 [2023-12-22 11:00:00,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 11:00:00,913 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 11:00:00,916 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 11:00:00,916 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 11:00:00,920 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 11:00:00,921 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:00:00" (1/1) ... [2023-12-22 11:00:00,922 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a900f04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:00:00, skipping insertion in model container [2023-12-22 11:00:00,922 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:00:00" (1/1) ... [2023-12-22 11:00:01,077 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 11:00:01,360 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label05.c[6050,6063] [2023-12-22 11:00:02,339 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 11:00:02,353 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 11:00:02,377 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label05.c[6050,6063] [2023-12-22 11:00:02,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 11:00:02,999 INFO L206 MainTranslator]: Completed translation [2023-12-22 11:00:03,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:00:03 WrapperNode [2023-12-22 11:00:03,000 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 11:00:03,001 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 11:00:03,001 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 11:00:03,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 11:00:03,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:00:03" (1/1) ... [2023-12-22 11:00:03,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:00:03" (1/1) ... [2023-12-22 11:00:03,250 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5582 [2023-12-22 11:00:03,251 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 11:00:03,251 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 11:00:03,252 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 11:00:03,252 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 11:00:03,263 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:00:03" (1/1) ... [2023-12-22 11:00:03,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:00:03" (1/1) ... [2023-12-22 11:00:03,292 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:00:03" (1/1) ... [2023-12-22 11:00:03,384 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]. [2023-12-22 11:00:03,385 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:00:03" (1/1) ... [2023-12-22 11:00:03,385 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:00:03" (1/1) ... [2023-12-22 11:00:03,579 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:00:03" (1/1) ... [2023-12-22 11:00:03,655 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:00:03" (1/1) ... [2023-12-22 11:00:03,676 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:00:03" (1/1) ... [2023-12-22 11:00:03,702 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:00:03" (1/1) ... [2023-12-22 11:00:03,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 11:00:03,730 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 11:00:03,730 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 11:00:03,730 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 11:00:03,731 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:00:03" (1/1) ... [2023-12-22 11:00:03,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 11:00:03,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 11:00:03,762 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) [2023-12-22 11:00:03,785 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 [2023-12-22 11:00:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 11:00:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 11:00:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 11:00:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 11:00:03,862 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 11:00:03,864 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 11:00:47,824 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 11:00:47,882 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 11:00:47,882 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 11:00:47,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:00:47 BoogieIcfgContainer [2023-12-22 11:00:47,883 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 11:00:47,885 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 11:00:47,885 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 11:00:47,888 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 11:00:47,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:00:00" (1/3) ... [2023-12-22 11:00:47,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473efd9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:00:47, skipping insertion in model container [2023-12-22 11:00:47,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:00:03" (2/3) ... [2023-12-22 11:00:47,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473efd9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:00:47, skipping insertion in model container [2023-12-22 11:00:47,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:00:47" (3/3) ... [2023-12-22 11:00:47,890 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label05.c [2023-12-22 11:00:47,904 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 11:00:47,905 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 11:00:47,962 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 11:00:47,967 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;@33e291bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 11:00:47,967 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 11:00:47,977 INFO L276 IsEmpty]: Start isEmpty. Operand has 1036 states, 1034 states have (on average 1.877176015473888) internal successors, (1941), 1035 states have internal predecessors, (1941), 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) [2023-12-22 11:00:47,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-22 11:00:47,983 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:00:47,984 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:00:47,985 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:00:47,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:00:47,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1737928220, now seen corresponding path program 1 times [2023-12-22 11:00:48,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:00:48,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253541485] [2023-12-22 11:00:48,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:00:48,006 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 [2023-12-22 11:00:48,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:00:48,013 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) [2023-12-22 11:00:48,014 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 [2023-12-22 11:00:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:00:48,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 11:00:48,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:00:48,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:00:48,108 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:00:48,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:00:48,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253541485] [2023-12-22 11:00:48,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [253541485] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:00:48,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:00:48,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:00:48,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411475293] [2023-12-22 11:00:48,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:00:48,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 11:00:48,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:00:48,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 11:00:48,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 11:00:48,154 INFO L87 Difference]: Start difference. First operand has 1036 states, 1034 states have (on average 1.877176015473888) internal successors, (1941), 1035 states have internal predecessors, (1941), 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 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 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) [2023-12-22 11:00:48,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:00:48,268 INFO L93 Difference]: Finished difference Result 2071 states and 3881 transitions. [2023-12-22 11:00:48,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 11:00:48,270 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 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 41 [2023-12-22 11:00:48,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:00:48,288 INFO L225 Difference]: With dead ends: 2071 [2023-12-22 11:00:48,288 INFO L226 Difference]: Without dead ends: 1034 [2023-12-22 11:00:48,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 11:00:48,302 INFO L413 NwaCegarLoop]: 1876 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 11:00:48,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1876 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 11:00:48,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2023-12-22 11:00:48,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1034. [2023-12-22 11:00:48,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1033 states have (on average 1.8160696999031947) internal successors, (1876), 1033 states have internal predecessors, (1876), 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) [2023-12-22 11:00:48,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1876 transitions. [2023-12-22 11:00:48,405 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1876 transitions. Word has length 41 [2023-12-22 11:00:48,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:00:48,406 INFO L495 AbstractCegarLoop]: Abstraction has 1034 states and 1876 transitions. [2023-12-22 11:00:48,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 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) [2023-12-22 11:00:48,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1876 transitions. [2023-12-22 11:00:48,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-22 11:00:48,407 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:00:48,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:00:48,418 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 [2023-12-22 11:00:48,610 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 [2023-12-22 11:00:48,611 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:00:48,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:00:48,611 INFO L85 PathProgramCache]: Analyzing trace with hash 956339171, now seen corresponding path program 1 times [2023-12-22 11:00:48,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:00:48,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616144807] [2023-12-22 11:00:48,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:00:48,612 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 [2023-12-22 11:00:48,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:00:48,613 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) [2023-12-22 11:00:48,614 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 [2023-12-22 11:00:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:00:48,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:00:48,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:00:48,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:00:48,741 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:00:48,742 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:00:48,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616144807] [2023-12-22 11:00:48,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616144807] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:00:48,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:00:48,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:00:48,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562812431] [2023-12-22 11:00:48,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:00:48,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:00:48,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:00:48,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:00:48,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:00:48,745 INFO L87 Difference]: Start difference. First operand 1034 states and 1876 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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) [2023-12-22 11:01:39,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:01:39,168 INFO L93 Difference]: Finished difference Result 2927 states and 5402 transitions. [2023-12-22 11:01:39,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:01:39,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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 41 [2023-12-22 11:01:39,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:01:39,180 INFO L225 Difference]: With dead ends: 2927 [2023-12-22 11:01:39,180 INFO L226 Difference]: Without dead ends: 1894 [2023-12-22 11:01:39,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:01:39,183 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 840 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 3018 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 3379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 3018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.2s IncrementalHoareTripleChecker+Time [2023-12-22 11:01:39,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 737 Invalid, 3379 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [361 Valid, 3018 Invalid, 0 Unknown, 0 Unchecked, 50.2s Time] [2023-12-22 11:01:39,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2023-12-22 11:01:39,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1837. [2023-12-22 11:01:39,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1837 states, 1836 states have (on average 1.661764705882353) internal successors, (3051), 1836 states have internal predecessors, (3051), 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) [2023-12-22 11:01:39,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1837 states to 1837 states and 3051 transitions. [2023-12-22 11:01:39,219 INFO L78 Accepts]: Start accepts. Automaton has 1837 states and 3051 transitions. Word has length 41 [2023-12-22 11:01:39,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:01:39,220 INFO L495 AbstractCegarLoop]: Abstraction has 1837 states and 3051 transitions. [2023-12-22 11:01:39,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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) [2023-12-22 11:01:39,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1837 states and 3051 transitions. [2023-12-22 11:01:39,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-22 11:01:39,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:01:39,223 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:01:39,228 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 (3)] Ended with exit code 0 [2023-12-22 11:01:39,425 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 [2023-12-22 11:01:39,426 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:01:39,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:01:39,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1753352956, now seen corresponding path program 1 times [2023-12-22 11:01:39,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:01:39,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [347974442] [2023-12-22 11:01:39,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:01:39,428 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 [2023-12-22 11:01:39,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:01:39,429 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) [2023-12-22 11:01:39,437 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 [2023-12-22 11:01:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:01:39,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:01:39,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:01:39,702 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:01:39,703 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:01:39,703 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:01:39,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [347974442] [2023-12-22 11:01:39,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [347974442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:01:39,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:01:39,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:01:39,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879683478] [2023-12-22 11:01:39,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:01:39,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:01:39,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:01:39,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:01:39,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:01:39,705 INFO L87 Difference]: Start difference. First operand 1837 states and 3051 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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) [2023-12-22 11:02:44,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:02:44,381 INFO L93 Difference]: Finished difference Result 5266 states and 8798 transitions. [2023-12-22 11:02:44,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:02:44,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 107 [2023-12-22 11:02:44,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:02:44,405 INFO L225 Difference]: With dead ends: 5266 [2023-12-22 11:02:44,405 INFO L226 Difference]: Without dead ends: 3430 [2023-12-22 11:02:44,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:02:44,410 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 781 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 2710 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 3277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 2710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.5s IncrementalHoareTripleChecker+Time [2023-12-22 11:02:44,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 1213 Invalid, 3277 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [567 Valid, 2710 Invalid, 0 Unknown, 0 Unchecked, 64.5s Time] [2023-12-22 11:02:44,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3430 states. [2023-12-22 11:02:44,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3430 to 3425. [2023-12-22 11:02:44,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3425 states, 3424 states have (on average 1.4237733644859814) internal successors, (4875), 3424 states have internal predecessors, (4875), 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) [2023-12-22 11:02:44,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3425 states to 3425 states and 4875 transitions. [2023-12-22 11:02:44,472 INFO L78 Accepts]: Start accepts. Automaton has 3425 states and 4875 transitions. Word has length 107 [2023-12-22 11:02:44,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:02:44,472 INFO L495 AbstractCegarLoop]: Abstraction has 3425 states and 4875 transitions. [2023-12-22 11:02:44,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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) [2023-12-22 11:02:44,472 INFO L276 IsEmpty]: Start isEmpty. Operand 3425 states and 4875 transitions. [2023-12-22 11:02:44,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-22 11:02:44,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:02:44,474 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:02:44,480 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 (4)] Ended with exit code 0 [2023-12-22 11:02:44,681 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 [2023-12-22 11:02:44,681 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:02:44,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:02:44,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1170185893, now seen corresponding path program 1 times [2023-12-22 11:02:44,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:02:44,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554585373] [2023-12-22 11:02:44,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:02:44,683 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 [2023-12-22 11:02:44,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:02:44,685 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) [2023-12-22 11:02:44,703 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 [2023-12-22 11:02:44,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:02:44,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:02:44,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:02:45,019 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:02:45,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:02:45,020 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:02:45,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554585373] [2023-12-22 11:02:45,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554585373] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:02:45,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:02:45,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:02:45,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223996933] [2023-12-22 11:02:45,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:02:45,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:02:45,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:02:45,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:02:45,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:02:45,022 INFO L87 Difference]: Start difference. First operand 3425 states and 4875 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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) [2023-12-22 11:03:46,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:03:46,402 INFO L93 Difference]: Finished difference Result 7672 states and 11092 transitions. [2023-12-22 11:03:46,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:03:46,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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 114 [2023-12-22 11:03:46,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:03:46,427 INFO L225 Difference]: With dead ends: 7672 [2023-12-22 11:03:46,428 INFO L226 Difference]: Without dead ends: 4248 [2023-12-22 11:03:46,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:03:46,438 INFO L413 NwaCegarLoop]: 1115 mSDtfsCounter, 783 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 2553 mSolverCounterSat, 773 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 3326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 773 IncrementalHoareTripleChecker+Valid, 2553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.2s IncrementalHoareTripleChecker+Time [2023-12-22 11:03:46,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 1266 Invalid, 3326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [773 Valid, 2553 Invalid, 0 Unknown, 0 Unchecked, 61.2s Time] [2023-12-22 11:03:46,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4248 states. [2023-12-22 11:03:46,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4248 to 4233. [2023-12-22 11:03:46,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4233 states, 4232 states have (on average 1.2887523629489603) internal successors, (5454), 4232 states have internal predecessors, (5454), 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) [2023-12-22 11:03:46,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4233 states to 4233 states and 5454 transitions. [2023-12-22 11:03:46,511 INFO L78 Accepts]: Start accepts. Automaton has 4233 states and 5454 transitions. Word has length 114 [2023-12-22 11:03:46,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:03:46,512 INFO L495 AbstractCegarLoop]: Abstraction has 4233 states and 5454 transitions. [2023-12-22 11:03:46,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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) [2023-12-22 11:03:46,513 INFO L276 IsEmpty]: Start isEmpty. Operand 4233 states and 5454 transitions. [2023-12-22 11:03:46,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-22 11:03:46,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:03:46,518 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:03:46,526 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 (5)] Ended with exit code 0 [2023-12-22 11:03:46,725 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 [2023-12-22 11:03:46,725 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:03:46,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:03:46,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1508729675, now seen corresponding path program 1 times [2023-12-22 11:03:46,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:03:46,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737302452] [2023-12-22 11:03:46,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:03:46,727 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 [2023-12-22 11:03:46,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:03:46,728 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) [2023-12-22 11:03:46,758 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 [2023-12-22 11:03:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:03:46,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 11:03:46,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:03:48,110 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:03:48,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 11:03:50,669 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:03:50,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:03:50,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737302452] [2023-12-22 11:03:50,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737302452] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 11:03:50,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 11:03:50,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-12-22 11:03:50,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500470629] [2023-12-22 11:03:50,670 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 11:03:50,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 11:03:50,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:03:50,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 11:03:50,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 11:03:50,672 INFO L87 Difference]: Start difference. First operand 4233 states and 5454 transitions. Second operand has 6 states, 6 states have (on average 40.333333333333336) internal successors, (242), 5 states have internal predecessors, (242), 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) [2023-12-22 11:04:56,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:05:29,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:05:34,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:05:46,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:05:46,099 INFO L93 Difference]: Finished difference Result 14025 states and 19427 transitions. [2023-12-22 11:05:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 11:05:46,100 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.333333333333336) internal successors, (242), 5 states have internal predecessors, (242), 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 146 [2023-12-22 11:05:46,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:05:46,181 INFO L225 Difference]: With dead ends: 14025 [2023-12-22 11:05:46,181 INFO L226 Difference]: Without dead ends: 10580 [2023-12-22 11:05:46,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-22 11:05:46,187 INFO L413 NwaCegarLoop]: 954 mSDtfsCounter, 5322 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 9741 mSolverCounterSat, 2351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 98.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5322 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 12092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2351 IncrementalHoareTripleChecker+Valid, 9741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 114.9s IncrementalHoareTripleChecker+Time [2023-12-22 11:05:46,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5322 Valid, 1211 Invalid, 12092 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2351 Valid, 9741 Invalid, 0 Unknown, 0 Unchecked, 114.9s Time] [2023-12-22 11:05:46,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10580 states. [2023-12-22 11:05:46,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10580 to 10560. [2023-12-22 11:05:46,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10560 states, 10559 states have (on average 1.205890709347476) internal successors, (12733), 10559 states have internal predecessors, (12733), 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) [2023-12-22 11:05:46,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10560 states to 10560 states and 12733 transitions. [2023-12-22 11:05:46,346 INFO L78 Accepts]: Start accepts. Automaton has 10560 states and 12733 transitions. Word has length 146 [2023-12-22 11:05:46,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:05:46,349 INFO L495 AbstractCegarLoop]: Abstraction has 10560 states and 12733 transitions. [2023-12-22 11:05:46,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.333333333333336) internal successors, (242), 5 states have internal predecessors, (242), 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) [2023-12-22 11:05:46,354 INFO L276 IsEmpty]: Start isEmpty. Operand 10560 states and 12733 transitions. [2023-12-22 11:05:46,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-12-22 11:05:46,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:05:46,358 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:05:46,367 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 [2023-12-22 11:05:46,563 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 [2023-12-22 11:05:46,564 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:05:46,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:05:46,564 INFO L85 PathProgramCache]: Analyzing trace with hash 697711736, now seen corresponding path program 1 times [2023-12-22 11:05:46,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:05:46,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187955553] [2023-12-22 11:05:46,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:05:46,566 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 [2023-12-22 11:05:46,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:05:46,567 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) [2023-12-22 11:05:46,594 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 [2023-12-22 11:05:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:05:46,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:05:46,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:05:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-22 11:05:46,969 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:05:46,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:05:46,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187955553] [2023-12-22 11:05:46,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187955553] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:05:46,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:05:46,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:05:46,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850783464] [2023-12-22 11:05:46,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:05:46,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:05:46,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:05:46,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:05:46,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:05:46,974 INFO L87 Difference]: Start difference. First operand 10560 states and 12733 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 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) [2023-12-22 11:06:35,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:06:35,697 INFO L93 Difference]: Finished difference Result 21117 states and 25929 transitions. [2023-12-22 11:06:35,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:06:35,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 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 202 [2023-12-22 11:06:35,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:06:35,728 INFO L225 Difference]: With dead ends: 21117 [2023-12-22 11:06:35,728 INFO L226 Difference]: Without dead ends: 11345 [2023-12-22 11:06:35,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:06:35,741 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 889 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 762 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 3071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 762 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.5s IncrementalHoareTripleChecker+Time [2023-12-22 11:06:35,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 1000 Invalid, 3071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [762 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 48.5s Time] [2023-12-22 11:06:35,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11345 states. [2023-12-22 11:06:35,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11345 to 11343. [2023-12-22 11:06:35,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11343 states, 11342 states have (on average 1.1230823487921002) internal successors, (12738), 11342 states have internal predecessors, (12738), 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) [2023-12-22 11:06:36,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11343 states to 11343 states and 12738 transitions. [2023-12-22 11:06:36,026 INFO L78 Accepts]: Start accepts. Automaton has 11343 states and 12738 transitions. Word has length 202 [2023-12-22 11:06:36,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:06:36,027 INFO L495 AbstractCegarLoop]: Abstraction has 11343 states and 12738 transitions. [2023-12-22 11:06:36,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 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) [2023-12-22 11:06:36,028 INFO L276 IsEmpty]: Start isEmpty. Operand 11343 states and 12738 transitions. [2023-12-22 11:06:36,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-22 11:06:36,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:06:36,030 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:06:36,036 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 [2023-12-22 11:06:36,235 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 [2023-12-22 11:06:36,236 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:06:36,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:06:36,237 INFO L85 PathProgramCache]: Analyzing trace with hash 572057867, now seen corresponding path program 1 times [2023-12-22 11:06:36,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:06:36,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240399491] [2023-12-22 11:06:36,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:06:36,238 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 [2023-12-22 11:06:36,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:06:36,243 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) [2023-12-22 11:06:36,289 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 [2023-12-22 11:06:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:06:36,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 11:06:36,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:06:36,854 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-22 11:06:36,855 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:06:36,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:06:36,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [240399491] [2023-12-22 11:06:36,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [240399491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:06:36,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:06:36,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:06:36,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997620465] [2023-12-22 11:06:36,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:06:36,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:06:36,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:06:36,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:06:36,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:06:36,856 INFO L87 Difference]: Start difference. First operand 11343 states and 12738 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 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) [2023-12-22 11:07:26,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:07:26,285 INFO L93 Difference]: Finished difference Result 21898 states and 24678 transitions. [2023-12-22 11:07:26,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:07:26,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 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 203 [2023-12-22 11:07:26,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:07:26,318 INFO L225 Difference]: With dead ends: 21898 [2023-12-22 11:07:26,318 INFO L226 Difference]: Without dead ends: 11343 [2023-12-22 11:07:26,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:07:26,328 INFO L413 NwaCegarLoop]: 1083 mSDtfsCounter, 700 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.2s IncrementalHoareTripleChecker+Time [2023-12-22 11:07:26,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1212 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 49.2s Time] [2023-12-22 11:07:26,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11343 states. [2023-12-22 11:07:26,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11343 to 11343. [2023-12-22 11:07:26,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11343 states, 11342 states have (on average 1.1226415094339623) internal successors, (12733), 11342 states have internal predecessors, (12733), 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) [2023-12-22 11:07:26,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11343 states to 11343 states and 12733 transitions. [2023-12-22 11:07:26,466 INFO L78 Accepts]: Start accepts. Automaton has 11343 states and 12733 transitions. Word has length 203 [2023-12-22 11:07:26,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:07:26,466 INFO L495 AbstractCegarLoop]: Abstraction has 11343 states and 12733 transitions. [2023-12-22 11:07:26,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 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) [2023-12-22 11:07:26,467 INFO L276 IsEmpty]: Start isEmpty. Operand 11343 states and 12733 transitions. [2023-12-22 11:07:26,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-12-22 11:07:26,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:07:26,469 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:07:26,481 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 [2023-12-22 11:07:26,676 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 [2023-12-22 11:07:26,677 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:07:26,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:07:26,677 INFO L85 PathProgramCache]: Analyzing trace with hash 264396708, now seen corresponding path program 1 times [2023-12-22 11:07:26,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:07:26,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475616337] [2023-12-22 11:07:26,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:07:26,678 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 [2023-12-22 11:07:26,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:07:26,679 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2023-12-22 11:07:26,681 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 (9)] Waiting until timeout for monitored process [2023-12-22 11:07:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:07:26,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:07:26,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:07:26,923 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-22 11:07:26,924 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:07:26,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:07:26,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475616337] [2023-12-22 11:07:26,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475616337] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:07:26,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:07:26,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 11:07:26,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925151405] [2023-12-22 11:07:26,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:07:26,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:07:26,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:07:26,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:07:26,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:07:26,926 INFO L87 Difference]: Start difference. First operand 11343 states and 12733 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2023-12-22 11:08:32,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:08:32,080 INFO L93 Difference]: Finished difference Result 28229 states and 32030 transitions. [2023-12-22 11:08:32,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:08:32,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 210 [2023-12-22 11:08:32,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:08:32,121 INFO L225 Difference]: With dead ends: 28229 [2023-12-22 11:08:32,121 INFO L226 Difference]: Without dead ends: 16885 [2023-12-22 11:08:32,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:08:32,136 INFO L413 NwaCegarLoop]: 1859 mSDtfsCounter, 829 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 2634 mSolverCounterSat, 686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 3320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 2634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.9s IncrementalHoareTripleChecker+Time [2023-12-22 11:08:32,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 2006 Invalid, 3320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [686 Valid, 2634 Invalid, 0 Unknown, 0 Unchecked, 64.9s Time] [2023-12-22 11:08:32,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16885 states. [2023-12-22 11:08:32,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16885 to 16081. [2023-12-22 11:08:32,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16081 states, 16080 states have (on average 1.101679104477612) internal successors, (17715), 16080 states have internal predecessors, (17715), 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) [2023-12-22 11:08:32,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16081 states to 16081 states and 17715 transitions. [2023-12-22 11:08:32,333 INFO L78 Accepts]: Start accepts. Automaton has 16081 states and 17715 transitions. Word has length 210 [2023-12-22 11:08:32,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:08:32,333 INFO L495 AbstractCegarLoop]: Abstraction has 16081 states and 17715 transitions. [2023-12-22 11:08:32,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2023-12-22 11:08:32,333 INFO L276 IsEmpty]: Start isEmpty. Operand 16081 states and 17715 transitions. [2023-12-22 11:08:32,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-22 11:08:32,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:08:32,336 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:08:32,343 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 (9)] Forceful destruction successful, exit code 0 [2023-12-22 11:08:32,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /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 [2023-12-22 11:08:32,543 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:08:32,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:08:32,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1051174407, now seen corresponding path program 1 times [2023-12-22 11:08:32,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:08:32,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323116985] [2023-12-22 11:08:32,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:08:32,544 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 [2023-12-22 11:08:32,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:08:32,545 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2023-12-22 11:08:32,546 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 (10)] Waiting until timeout for monitored process [2023-12-22 11:08:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:08:32,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:08:32,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:08:32,872 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:08:32,872 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:08:32,872 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:08:32,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1323116985] [2023-12-22 11:08:32,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1323116985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:08:32,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:08:32,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 11:08:32,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570911392] [2023-12-22 11:08:32,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:08:32,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:08:32,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:08:32,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:08:32,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:08:32,874 INFO L87 Difference]: Start difference. First operand 16081 states and 17715 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2023-12-22 11:09:32,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:09:32,634 INFO L93 Difference]: Finished difference Result 36913 states and 41171 transitions. [2023-12-22 11:09:32,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:09:32,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 240 [2023-12-22 11:09:32,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:09:32,673 INFO L225 Difference]: With dead ends: 36913 [2023-12-22 11:09:32,673 INFO L226 Difference]: Without dead ends: 20829 [2023-12-22 11:09:32,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:09:32,692 INFO L413 NwaCegarLoop]: 1712 mSDtfsCounter, 792 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 2506 mSolverCounterSat, 731 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 3237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 731 IncrementalHoareTripleChecker+Valid, 2506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.5s IncrementalHoareTripleChecker+Time [2023-12-22 11:09:32,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1853 Invalid, 3237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [731 Valid, 2506 Invalid, 0 Unknown, 0 Unchecked, 59.5s Time] [2023-12-22 11:09:32,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20829 states. [2023-12-22 11:09:32,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20829 to 20808. [2023-12-22 11:09:32,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20808 states, 20807 states have (on average 1.0909309367039939) internal successors, (22699), 20807 states have internal predecessors, (22699), 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) [2023-12-22 11:09:32,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20808 states to 20808 states and 22699 transitions. [2023-12-22 11:09:32,934 INFO L78 Accepts]: Start accepts. Automaton has 20808 states and 22699 transitions. Word has length 240 [2023-12-22 11:09:32,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:09:32,936 INFO L495 AbstractCegarLoop]: Abstraction has 20808 states and 22699 transitions. [2023-12-22 11:09:32,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2023-12-22 11:09:32,937 INFO L276 IsEmpty]: Start isEmpty. Operand 20808 states and 22699 transitions. [2023-12-22 11:09:32,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-12-22 11:09:32,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:09:32,940 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:09:32,951 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 (10)] Forceful destruction successful, exit code 0 [2023-12-22 11:09:33,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /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 [2023-12-22 11:09:33,145 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:09:33,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:09:33,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1601335971, now seen corresponding path program 1 times [2023-12-22 11:09:33,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:09:33,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1644764933] [2023-12-22 11:09:33,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:09:33,147 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 [2023-12-22 11:09:33,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:09:33,148 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2023-12-22 11:09:33,152 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 (11)] Waiting until timeout for monitored process [2023-12-22 11:09:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:09:33,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 11:09:33,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:09:35,155 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:09:35,156 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 11:09:45,592 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:09:45,592 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:09:45,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1644764933] [2023-12-22 11:09:45,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1644764933] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 11:09:45,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 11:09:45,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 11:09:45,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892629003] [2023-12-22 11:09:45,593 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 11:09:45,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 11:09:45,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:09:45,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 11:09:45,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-22 11:09:45,594 INFO L87 Difference]: Start difference. First operand 20808 states and 22699 transitions. Second operand has 7 states, 7 states have (on average 62.42857142857143) internal successors, (437), 6 states have internal predecessors, (437), 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) [2023-12-22 11:10:02,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:10:46,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:11:21,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:11:27,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:11:48,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:12:03,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:12:15,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:13:01,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:13:09,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:13:18,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:13:39,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:13:40,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:13:52,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:13:57,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:13:57,128 INFO L93 Difference]: Finished difference Result 47325 states and 52639 transitions. [2023-12-22 11:13:57,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 11:13:57,143 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 62.42857142857143) internal successors, (437), 6 states have internal predecessors, (437), 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 262 [2023-12-22 11:13:57,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:13:57,186 INFO L225 Difference]: With dead ends: 47325 [2023-12-22 11:13:57,186 INFO L226 Difference]: Without dead ends: 35183 [2023-12-22 11:13:57,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 517 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-12-22 11:13:57,197 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 5413 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 14082 mSolverCounterSat, 1687 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 215.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5413 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 15769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1687 IncrementalHoareTripleChecker+Valid, 14082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 249.9s IncrementalHoareTripleChecker+Time [2023-12-22 11:13:57,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5413 Valid, 1124 Invalid, 15769 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1687 Valid, 14082 Invalid, 0 Unknown, 0 Unchecked, 249.9s Time] [2023-12-22 11:13:57,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35183 states. [2023-12-22 11:13:57,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35183 to 29481. [2023-12-22 11:13:57,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29481 states, 29480 states have (on average 1.0832767978290367) internal successors, (31935), 29480 states have internal predecessors, (31935), 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) [2023-12-22 11:13:57,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29481 states to 29481 states and 31935 transitions. [2023-12-22 11:13:57,544 INFO L78 Accepts]: Start accepts. Automaton has 29481 states and 31935 transitions. Word has length 262 [2023-12-22 11:13:57,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:13:57,544 INFO L495 AbstractCegarLoop]: Abstraction has 29481 states and 31935 transitions. [2023-12-22 11:13:57,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 62.42857142857143) internal successors, (437), 6 states have internal predecessors, (437), 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) [2023-12-22 11:13:57,545 INFO L276 IsEmpty]: Start isEmpty. Operand 29481 states and 31935 transitions. [2023-12-22 11:13:57,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-12-22 11:13:57,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:13:57,549 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:13:57,553 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 (11)] Forceful destruction successful, exit code 0 [2023-12-22 11:13:57,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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 [2023-12-22 11:13:57,753 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:13:57,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:13:57,754 INFO L85 PathProgramCache]: Analyzing trace with hash -309397663, now seen corresponding path program 1 times [2023-12-22 11:13:57,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:13:57,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [869967414] [2023-12-22 11:13:57,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:13:57,756 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 [2023-12-22 11:13:57,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:13:57,757 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2023-12-22 11:13:57,788 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 (12)] Waiting until timeout for monitored process [2023-12-22 11:13:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:13:57,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 11:13:57,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:13:58,602 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 365 proven. 88 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-12-22 11:13:58,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 11:13:59,859 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 365 proven. 88 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-12-22 11:13:59,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:13:59,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [869967414] [2023-12-22 11:13:59,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [869967414] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 11:13:59,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 11:13:59,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-22 11:13:59,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443590058] [2023-12-22 11:13:59,860 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 11:13:59,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 11:13:59,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:13:59,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 11:13:59,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-22 11:13:59,862 INFO L87 Difference]: Start difference. First operand 29481 states and 31935 transitions. Second operand has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 5 states have internal predecessors, (446), 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) Received shutdown request... [2023-12-22 11:14:22,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 11:14:22,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 740 GetRequests, 734 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-22 11:14:22,294 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2126 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 2365 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2126 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 2494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 2365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2023-12-22 11:14:22,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2126 Valid, 53 Invalid, 2494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 2365 Invalid, 0 Unknown, 0 Unchecked, 22.3s Time] [2023-12-22 11:14:22,296 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 11:14:22,307 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 (12)] Forceful destruction successful, exit code 0 [2023-12-22 11:14:22,328 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 [2023-12-22 11:14:22,328 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 (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 11:14:22,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /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 [2023-12-22 11:14:22,509 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (29481states) and FLOYD_HOARE automaton (currently 7 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (5081 states constructed, input type IntersectNwa). [2023-12-22 11:14:22,513 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:14:22,515 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 11:14:22,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:14:22 BoogieIcfgContainer [2023-12-22 11:14:22,516 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 11:14:22,517 INFO L158 Benchmark]: Toolchain (without parser) took 861603.59ms. Allocated memory was 330.3MB in the beginning and 897.6MB in the end (delta: 567.3MB). Free memory was 262.3MB in the beginning and 333.4MB in the end (delta: -71.2MB). Peak memory consumption was 497.4MB. Max. memory is 8.0GB. [2023-12-22 11:14:22,517 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 185.6MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 11:14:22,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2084.63ms. Allocated memory is still 330.3MB. Free memory was 261.8MB in the beginning and 207.2MB in the end (delta: 54.6MB). Peak memory consumption was 121.6MB. Max. memory is 8.0GB. [2023-12-22 11:14:22,517 INFO L158 Benchmark]: Boogie Procedure Inliner took 249.62ms. Allocated memory is still 330.3MB. Free memory was 207.2MB in the beginning and 162.6MB in the end (delta: 44.6MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2023-12-22 11:14:22,518 INFO L158 Benchmark]: Boogie Preprocessor took 477.37ms. Allocated memory was 330.3MB in the beginning and 539.0MB in the end (delta: 208.7MB). Free memory was 162.6MB in the beginning and 431.3MB in the end (delta: -268.7MB). Peak memory consumption was 88.4MB. Max. memory is 8.0GB. [2023-12-22 11:14:22,518 INFO L158 Benchmark]: RCFGBuilder took 44153.23ms. Allocated memory was 539.0MB in the beginning and 897.6MB in the end (delta: 358.6MB). Free memory was 431.3MB in the beginning and 479.5MB in the end (delta: -48.2MB). Peak memory consumption was 311.4MB. Max. memory is 8.0GB. [2023-12-22 11:14:22,518 INFO L158 Benchmark]: TraceAbstraction took 814631.78ms. Allocated memory is still 897.6MB. Free memory was 478.5MB in the beginning and 333.4MB in the end (delta: 145.0MB). Peak memory consumption was 145.8MB. Max. memory is 8.0GB. [2023-12-22 11:14:22,519 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 185.6MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2084.63ms. Allocated memory is still 330.3MB. Free memory was 261.8MB in the beginning and 207.2MB in the end (delta: 54.6MB). Peak memory consumption was 121.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 249.62ms. Allocated memory is still 330.3MB. Free memory was 207.2MB in the beginning and 162.6MB in the end (delta: 44.6MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 477.37ms. Allocated memory was 330.3MB in the beginning and 539.0MB in the end (delta: 208.7MB). Free memory was 162.6MB in the beginning and 431.3MB in the end (delta: -268.7MB). Peak memory consumption was 88.4MB. Max. memory is 8.0GB. * RCFGBuilder took 44153.23ms. Allocated memory was 539.0MB in the beginning and 897.6MB in the end (delta: 358.6MB). Free memory was 431.3MB in the beginning and 479.5MB in the end (delta: -48.2MB). Peak memory consumption was 311.4MB. Max. memory is 8.0GB. * TraceAbstraction took 814631.78ms. Allocated memory is still 897.6MB. Free memory was 478.5MB in the beginning and 333.4MB in the end (delta: 145.0MB). Peak memory consumption was 145.8MB. 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: 148]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 148). Cancelled while NwaCegarLoop was constructing difference of abstraction (29481states) and FLOYD_HOARE automaton (currently 7 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (5081 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1036 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 814.6s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 789.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18475 SdHoareTripleChecker+Valid, 785.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18475 mSDsluCounter, 13551 SdHoareTripleChecker+Invalid, 662.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2070 mSDsCounter, 8051 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44443 IncrementalHoareTripleChecker+Invalid, 52494 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8051 mSolverCounterUnsat, 11481 mSDtfsCounter, 44443 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2711 GetRequests, 2680 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29481occurred in iteration=10, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 6626 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 19.5s InterpolantComputationTime, 1936 NumberOfCodeBlocks, 1936 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2700 ConstructedInterpolants, 0 QuantifiedInterpolants, 17475 SizeOfPredicates, 14 NumberOfNonLiveVariables, 2493 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 1729/2331 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