/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_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 11:14:25,817 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 11:14:25,896 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 11:14:25,902 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 11:14:25,903 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 11:14:25,929 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 11:14:25,930 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 11:14:25,930 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 11:14:25,931 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 11:14:25,935 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 11:14:25,935 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 11:14:25,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 11:14:25,937 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 11:14:25,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 11:14:25,938 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 11:14:25,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 11:14:25,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 11:14:25,941 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 11:14:25,941 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 11:14:25,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 11:14:25,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 11:14:25,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 11:14:25,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 11:14:25,942 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 11:14:25,943 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 11:14:25,943 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 11:14:25,943 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 11:14:25,943 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 11:14:25,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 11:14:25,944 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 11:14:25,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 11:14:25,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 11:14:25,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 11:14:25,945 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 11:14:25,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 11:14:25,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 11:14:25,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 11:14:25,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 11:14:25,946 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 11:14:25,946 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 11:14:25,946 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 11:14:25,946 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 11:14:25,946 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 11:14:25,946 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 11:14:25,947 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 11:14:25,947 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 11:14:25,947 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 11:14:26,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 11:14:26,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 11:14:26,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 11:14:26,197 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 11:14:26,198 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 11:14:26,200 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label17.c [2023-12-22 11:14:27,351 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 11:14:27,813 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 11:14:27,814 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label17.c [2023-12-22 11:14:27,854 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/403890836/f6228b981584462581949be1264100ae/FLAGba23d75b0 [2023-12-22 11:14:27,869 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/403890836/f6228b981584462581949be1264100ae [2023-12-22 11:14:27,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 11:14:27,872 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 11:14:27,875 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 11:14:27,875 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 11:14:27,880 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 11:14:27,881 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:14:27" (1/1) ... [2023-12-22 11:14:27,881 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2591e5f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:27, skipping insertion in model container [2023-12-22 11:14:27,882 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:14:27" (1/1) ... [2023-12-22 11:14:28,021 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 11:14:28,251 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_label17.c[4917,4930] [2023-12-22 11:14:29,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 11:14:29,220 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 11:14:29,245 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_label17.c[4917,4930] [2023-12-22 11:14:29,738 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 11:14:29,760 INFO L206 MainTranslator]: Completed translation [2023-12-22 11:14:29,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:29 WrapperNode [2023-12-22 11:14:29,761 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 11:14:29,762 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 11:14:29,763 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 11:14:29,763 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 11:14:29,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:29" (1/1) ... [2023-12-22 11:14:29,843 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:29" (1/1) ... [2023-12-22 11:14:30,014 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5582 [2023-12-22 11:14:30,014 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 11:14:30,015 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 11:14:30,015 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 11:14:30,015 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 11:14:30,025 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:29" (1/1) ... [2023-12-22 11:14:30,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:29" (1/1) ... [2023-12-22 11:14:30,153 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:29" (1/1) ... [2023-12-22 11:14:30,197 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 11:14:30,197 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:29" (1/1) ... [2023-12-22 11:14:30,197 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:29" (1/1) ... [2023-12-22 11:14:30,283 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:29" (1/1) ... [2023-12-22 11:14:30,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:29" (1/1) ... [2023-12-22 11:14:30,348 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:29" (1/1) ... [2023-12-22 11:14:30,417 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:29" (1/1) ... [2023-12-22 11:14:30,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 11:14:30,445 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 11:14:30,445 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 11:14:30,445 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 11:14:30,446 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:29" (1/1) ... [2023-12-22 11:14:30,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 11:14:30,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 11:14:30,471 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 11:14:30,473 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 11:14:30,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 11:14:30,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 11:14:30,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 11:14:30,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 11:14:30,565 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 11:14:30,567 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 11:15:15,642 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 11:15:15,700 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 11:15:15,700 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 11:15:15,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:15:15 BoogieIcfgContainer [2023-12-22 11:15:15,701 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 11:15:15,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 11:15:15,703 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 11:15:15,706 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 11:15:15,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:14:27" (1/3) ... [2023-12-22 11:15:15,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f982372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:15:15, skipping insertion in model container [2023-12-22 11:15:15,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:14:29" (2/3) ... [2023-12-22 11:15:15,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f982372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:15:15, skipping insertion in model container [2023-12-22 11:15:15,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:15:15" (3/3) ... [2023-12-22 11:15:15,708 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label17.c [2023-12-22 11:15:15,724 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 11:15:15,724 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 11:15:15,804 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 11:15:15,809 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;@105b1efa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 11:15:15,809 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 11:15:15,817 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 11:15:15,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-22 11:15:15,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:15:15,823 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] [2023-12-22 11:15:15,823 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:15:15,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:15:15,827 INFO L85 PathProgramCache]: Analyzing trace with hash 25751348, now seen corresponding path program 1 times [2023-12-22 11:15:15,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:15:15,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545867958] [2023-12-22 11:15:15,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:15:15,838 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 11:15:15,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:15:15,850 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 11:15:15,860 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 11:15:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:15:15,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 11:15:15,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:15:15,936 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 11:15:15,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:15:15,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:15:15,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545867958] [2023-12-22 11:15:15,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545867958] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:15:15,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:15:15,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:15:15,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530428236] [2023-12-22 11:15:15,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:15:15,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 11:15:15,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:15:15,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 11:15:15,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 11:15:15,976 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 16.0) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:15:16,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:15:16,077 INFO L93 Difference]: Finished difference Result 2071 states and 3881 transitions. [2023-12-22 11:15:16,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 11:15:16,085 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2023-12-22 11:15:16,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:15:16,103 INFO L225 Difference]: With dead ends: 2071 [2023-12-22 11:15:16,103 INFO L226 Difference]: Without dead ends: 1034 [2023-12-22 11:15:16,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 31 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 11:15:16,113 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 11:15:16,114 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 11:15:16,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2023-12-22 11:15:16,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1034. [2023-12-22 11:15:16,199 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 11:15:16,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1876 transitions. [2023-12-22 11:15:16,203 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1876 transitions. Word has length 32 [2023-12-22 11:15:16,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:15:16,204 INFO L495 AbstractCegarLoop]: Abstraction has 1034 states and 1876 transitions. [2023-12-22 11:15:16,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:15:16,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1876 transitions. [2023-12-22 11:15:16,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-22 11:15:16,205 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:15:16,206 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] [2023-12-22 11:15:16,211 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 11:15:16,409 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 11:15:16,410 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:15:16,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:15:16,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1066878320, now seen corresponding path program 1 times [2023-12-22 11:15:16,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:15:16,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894450298] [2023-12-22 11:15:16,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:15:16,411 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 11:15:16,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:15:16,413 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 11:15:16,414 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 11:15:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:15:16,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:15:16,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:15:16,553 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 11:15:16,553 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:15:16,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:15:16,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894450298] [2023-12-22 11:15:16,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894450298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:15:16,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:15:16,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:15:16,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716715910] [2023-12-22 11:15:16,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:15:16,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:15:16,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:15:16,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:15:16,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:15:16,562 INFO L87 Difference]: Start difference. First operand 1034 states and 1876 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:16:09,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:16:09,601 INFO L93 Difference]: Finished difference Result 2927 states and 5402 transitions. [2023-12-22 11:16:09,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:16:09,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2023-12-22 11:16:09,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:16:09,611 INFO L225 Difference]: With dead ends: 2927 [2023-12-22 11:16:09,611 INFO L226 Difference]: Without dead ends: 1894 [2023-12-22 11:16:09,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 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 11:16:09,613 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 849 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 3018 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 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, 52.8s IncrementalHoareTripleChecker+Time [2023-12-22 11:16:09,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 737 Invalid, 3379 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [361 Valid, 3018 Invalid, 0 Unknown, 0 Unchecked, 52.8s Time] [2023-12-22 11:16:09,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2023-12-22 11:16:09,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1837. [2023-12-22 11:16:09,649 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 11:16:09,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1837 states to 1837 states and 3051 transitions. [2023-12-22 11:16:09,655 INFO L78 Accepts]: Start accepts. Automaton has 1837 states and 3051 transitions. Word has length 32 [2023-12-22 11:16:09,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:16:09,655 INFO L495 AbstractCegarLoop]: Abstraction has 1837 states and 3051 transitions. [2023-12-22 11:16:09,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:16:09,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1837 states and 3051 transitions. [2023-12-22 11:16:09,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-22 11:16:09,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:16:09,659 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:16:09,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 11:16:09,868 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 11:16:09,869 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:16:09,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:16:09,870 INFO L85 PathProgramCache]: Analyzing trace with hash 443926286, now seen corresponding path program 1 times [2023-12-22 11:16:09,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:16:09,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855244094] [2023-12-22 11:16:09,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:16:09,871 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 11:16:09,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:16:09,872 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 11:16:09,875 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 11:16:09,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:16:09,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:16:09,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:16:10,073 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:16:10,073 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:16:10,073 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:16:10,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855244094] [2023-12-22 11:16:10,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1855244094] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:16:10,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:16:10,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:16:10,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413479237] [2023-12-22 11:16:10,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:16:10,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:16:10,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:16:10,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:16:10,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:16:10,075 INFO L87 Difference]: Start difference. First operand 1837 states and 3051 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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 11:17:10,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:17:10,231 INFO L93 Difference]: Finished difference Result 5266 states and 8798 transitions. [2023-12-22 11:17:10,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:17:10,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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 98 [2023-12-22 11:17:10,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:17:10,265 INFO L225 Difference]: With dead ends: 5266 [2023-12-22 11:17:10,266 INFO L226 Difference]: Without dead ends: 3430 [2023-12-22 11:17:10,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 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 11:17:10,280 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 781 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 2710 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 3277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 2710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.0s IncrementalHoareTripleChecker+Time [2023-12-22 11:17:10,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 1213 Invalid, 3277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 2710 Invalid, 0 Unknown, 0 Unchecked, 60.0s Time] [2023-12-22 11:17:10,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3430 states. [2023-12-22 11:17:10,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3430 to 3425. [2023-12-22 11:17:10,382 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 11:17:10,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3425 states to 3425 states and 4875 transitions. [2023-12-22 11:17:10,387 INFO L78 Accepts]: Start accepts. Automaton has 3425 states and 4875 transitions. Word has length 98 [2023-12-22 11:17:10,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:17:10,392 INFO L495 AbstractCegarLoop]: Abstraction has 3425 states and 4875 transitions. [2023-12-22 11:17:10,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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 11:17:10,393 INFO L276 IsEmpty]: Start isEmpty. Operand 3425 states and 4875 transitions. [2023-12-22 11:17:10,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-22 11:17:10,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:17:10,402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:10,423 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 11:17:10,605 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 11:17:10,606 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:17:10,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:17:10,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1074162769, now seen corresponding path program 1 times [2023-12-22 11:17:10,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:17:10,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465750001] [2023-12-22 11:17:10,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:17:10,607 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 11:17:10,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:17:10,624 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 11:17:10,677 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 11:17:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:17:10,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:17:10,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:17:10,982 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:17:10,982 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:17:10,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:17:10,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465750001] [2023-12-22 11:17:10,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [465750001] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:17:10,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:17:10,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:17:10,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775967081] [2023-12-22 11:17:10,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:17:10,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:17:10,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:17:10,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:17:10,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:17:10,985 INFO L87 Difference]: Start difference. First operand 3425 states and 4875 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 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 11:18:14,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:18:14,006 INFO L93 Difference]: Finished difference Result 7672 states and 11092 transitions. [2023-12-22 11:18:14,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:18:14,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 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 105 [2023-12-22 11:18:14,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:18:14,029 INFO L225 Difference]: With dead ends: 7672 [2023-12-22 11:18:14,029 INFO L226 Difference]: Without dead ends: 4248 [2023-12-22 11:18:14,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 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 11:18:14,033 INFO L413 NwaCegarLoop]: 1115 mSDtfsCounter, 783 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 2553 mSolverCounterSat, 773 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.7s 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, 62.8s IncrementalHoareTripleChecker+Time [2023-12-22 11:18:14,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 1266 Invalid, 3326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [773 Valid, 2553 Invalid, 0 Unknown, 0 Unchecked, 62.8s Time] [2023-12-22 11:18:14,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4248 states. [2023-12-22 11:18:14,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4248 to 4233. [2023-12-22 11:18:14,090 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 11:18:14,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4233 states to 4233 states and 5454 transitions. [2023-12-22 11:18:14,098 INFO L78 Accepts]: Start accepts. Automaton has 4233 states and 5454 transitions. Word has length 105 [2023-12-22 11:18:14,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:18:14,099 INFO L495 AbstractCegarLoop]: Abstraction has 4233 states and 5454 transitions. [2023-12-22 11:18:14,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 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 11:18:14,099 INFO L276 IsEmpty]: Start isEmpty. Operand 4233 states and 5454 transitions. [2023-12-22 11:18:14,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-22 11:18:14,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:18:14,100 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:14,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 11:18:14,306 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 11:18:14,307 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:18:14,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:18:14,307 INFO L85 PathProgramCache]: Analyzing trace with hash -770162785, now seen corresponding path program 1 times [2023-12-22 11:18:14,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:18:14,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [563919666] [2023-12-22 11:18:14,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:18:14,309 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 11:18:14,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:18:14,311 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 11:18:14,341 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 11:18:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:18:14,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 11:18:14,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:18:15,627 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:18:15,627 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 11:18:18,201 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:18:18,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:18:18,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [563919666] [2023-12-22 11:18:18,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [563919666] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 11:18:18,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 11:18:18,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-12-22 11:18:18,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508391379] [2023-12-22 11:18:18,202 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 11:18:18,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 11:18:18,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:18:18,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 11:18:18,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 11:18:18,204 INFO L87 Difference]: Start difference. First operand 4233 states and 5454 transitions. Second operand has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 5 states have internal predecessors, (233), 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 11:18:30,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:18:39,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:19:37,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:20:11,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:20:29,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:20:29,222 INFO L93 Difference]: Finished difference Result 14025 states and 19427 transitions. [2023-12-22 11:20:29,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 11:20:29,224 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 5 states have internal predecessors, (233), 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 137 [2023-12-22 11:20:29,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:20:29,248 INFO L225 Difference]: With dead ends: 14025 [2023-12-22 11:20:29,248 INFO L226 Difference]: Without dead ends: 10580 [2023-12-22 11:20:29,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-22 11:20:29,255 INFO L413 NwaCegarLoop]: 954 mSDtfsCounter, 3750 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 12178 mSolverCounterSat, 1813 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 111.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3750 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 13991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1813 IncrementalHoareTripleChecker+Valid, 12178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 130.3s IncrementalHoareTripleChecker+Time [2023-12-22 11:20:29,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3750 Valid, 1393 Invalid, 13991 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1813 Valid, 12178 Invalid, 0 Unknown, 0 Unchecked, 130.3s Time] [2023-12-22 11:20:29,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10580 states. [2023-12-22 11:20:29,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10580 to 10560. [2023-12-22 11:20:29,399 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 11:20:29,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10560 states to 10560 states and 12733 transitions. [2023-12-22 11:20:29,417 INFO L78 Accepts]: Start accepts. Automaton has 10560 states and 12733 transitions. Word has length 137 [2023-12-22 11:20:29,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:20:29,418 INFO L495 AbstractCegarLoop]: Abstraction has 10560 states and 12733 transitions. [2023-12-22 11:20:29,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 5 states have internal predecessors, (233), 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 11:20:29,418 INFO L276 IsEmpty]: Start isEmpty. Operand 10560 states and 12733 transitions. [2023-12-22 11:20:29,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-22 11:20:29,421 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:20:29,421 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, 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] [2023-12-22 11:20:29,431 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 11:20:29,627 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 11:20:29,627 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:20:29,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:20:29,628 INFO L85 PathProgramCache]: Analyzing trace with hash 318258621, now seen corresponding path program 1 times [2023-12-22 11:20:29,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:20:29,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326394481] [2023-12-22 11:20:29,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:20:29,629 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 11:20:29,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:20:29,631 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 11:20:29,657 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 11:20:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:20:29,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:20:29,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:20:30,113 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-22 11:20:30,114 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:20:30,114 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:20:30,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326394481] [2023-12-22 11:20:30,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326394481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:20:30,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:20:30,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:20:30,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176989865] [2023-12-22 11:20:30,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:20:30,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:20:30,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:20:30,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:20:30,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:20:30,117 INFO L87 Difference]: Start difference. First operand 10560 states and 12733 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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 11:21:17,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:21:17,290 INFO L93 Difference]: Finished difference Result 21117 states and 25929 transitions. [2023-12-22 11:21:17,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:21:17,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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 193 [2023-12-22 11:21:17,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:21:17,367 INFO L225 Difference]: With dead ends: 21117 [2023-12-22 11:21:17,368 INFO L226 Difference]: Without dead ends: 11345 [2023-12-22 11:21:17,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 191 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 11:21:17,377 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 889 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 762 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.9s 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, 47.0s IncrementalHoareTripleChecker+Time [2023-12-22 11:21:17,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 1000 Invalid, 3071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [762 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 47.0s Time] [2023-12-22 11:21:17,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11345 states. [2023-12-22 11:21:17,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11345 to 11343. [2023-12-22 11:21:17,550 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 11:21:17,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11343 states to 11343 states and 12738 transitions. [2023-12-22 11:21:17,566 INFO L78 Accepts]: Start accepts. Automaton has 11343 states and 12738 transitions. Word has length 193 [2023-12-22 11:21:17,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:21:17,567 INFO L495 AbstractCegarLoop]: Abstraction has 11343 states and 12738 transitions. [2023-12-22 11:21:17,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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 11:21:17,568 INFO L276 IsEmpty]: Start isEmpty. Operand 11343 states and 12738 transitions. [2023-12-22 11:21:17,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-22 11:21:17,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:21:17,570 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, 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] [2023-12-22 11:21:17,579 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 11:21:17,775 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 11:21:17,776 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:21:17,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:21:17,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1849099880, now seen corresponding path program 1 times [2023-12-22 11:21:17,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:21:17,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17612846] [2023-12-22 11:21:17,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:21:17,777 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 11:21:17,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:21:17,778 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 11:21:17,779 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 11:21:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:21:17,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 11:21:17,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:21:18,439 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-22 11:21:18,439 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:21:18,439 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:21:18,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17612846] [2023-12-22 11:21:18,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17612846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:21:18,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:21:18,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:21:18,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795097206] [2023-12-22 11:21:18,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:21:18,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:21:18,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:21:18,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:21:18,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:21:18,441 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 11:22:05,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:22:05,867 INFO L93 Difference]: Finished difference Result 21898 states and 24678 transitions. [2023-12-22 11:22:05,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:22:05,877 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 194 [2023-12-22 11:22:05,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:22:05,896 INFO L225 Difference]: With dead ends: 21898 [2023-12-22 11:22:05,897 INFO L226 Difference]: Without dead ends: 11343 [2023-12-22 11:22:05,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 192 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 11:22:05,907 INFO L413 NwaCegarLoop]: 1083 mSDtfsCounter, 700 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.1s 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, 47.2s IncrementalHoareTripleChecker+Time [2023-12-22 11:22:05,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1212 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 47.2s Time] [2023-12-22 11:22:05,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11343 states. [2023-12-22 11:22:06,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11343 to 11343. [2023-12-22 11:22:06,037 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 11:22:06,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11343 states to 11343 states and 12733 transitions. [2023-12-22 11:22:06,052 INFO L78 Accepts]: Start accepts. Automaton has 11343 states and 12733 transitions. Word has length 194 [2023-12-22 11:22:06,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:22:06,053 INFO L495 AbstractCegarLoop]: Abstraction has 11343 states and 12733 transitions. [2023-12-22 11:22:06,053 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 11:22:06,053 INFO L276 IsEmpty]: Start isEmpty. Operand 11343 states and 12733 transitions. [2023-12-22 11:22:06,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-22 11:22:06,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:22:06,055 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, 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] [2023-12-22 11:22:06,062 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 11:22:06,262 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 11:22:06,262 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:22:06,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:22:06,263 INFO L85 PathProgramCache]: Analyzing trace with hash -370149615, now seen corresponding path program 1 times [2023-12-22 11:22:06,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:22:06,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747687134] [2023-12-22 11:22:06,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:22:06,264 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 11:22:06,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:22:06,265 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 11:22:06,266 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 11:22:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:22:06,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:22:06,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:22:06,540 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:22:06,540 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:22:06,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:22:06,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747687134] [2023-12-22 11:22:06,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747687134] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:22:06,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:22:06,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 11:22:06,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693450312] [2023-12-22 11:22:06,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:22:06,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:22:06,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:22:06,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:22:06,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:22:06,543 INFO L87 Difference]: Start difference. First operand 11343 states and 12733 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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 11:22:55,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:22:55,864 INFO L93 Difference]: Finished difference Result 27439 states and 31209 transitions. [2023-12-22 11:22:55,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:22:55,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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 201 [2023-12-22 11:22:55,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:22:55,897 INFO L225 Difference]: With dead ends: 27439 [2023-12-22 11:22:55,898 INFO L226 Difference]: Without dead ends: 16093 [2023-12-22 11:22:55,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 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 11:22:55,913 INFO L413 NwaCegarLoop]: 1718 mSDtfsCounter, 820 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 2511 mSolverCounterSat, 731 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 3242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 731 IncrementalHoareTripleChecker+Valid, 2511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.1s IncrementalHoareTripleChecker+Time [2023-12-22 11:22:55,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 1860 Invalid, 3242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [731 Valid, 2511 Invalid, 0 Unknown, 0 Unchecked, 49.1s Time] [2023-12-22 11:22:55,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16093 states. [2023-12-22 11:22:56,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16093 to 16072. [2023-12-22 11:22:56,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16072 states, 16071 states have (on average 1.1024827328728766) internal successors, (17718), 16071 states have internal predecessors, (17718), 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 11:22:56,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16072 states to 16072 states and 17718 transitions. [2023-12-22 11:22:56,135 INFO L78 Accepts]: Start accepts. Automaton has 16072 states and 17718 transitions. Word has length 201 [2023-12-22 11:22:56,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:22:56,135 INFO L495 AbstractCegarLoop]: Abstraction has 16072 states and 17718 transitions. [2023-12-22 11:22:56,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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 11:22:56,136 INFO L276 IsEmpty]: Start isEmpty. Operand 16072 states and 17718 transitions. [2023-12-22 11:22:56,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-12-22 11:22:56,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:22:56,141 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 3, 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] [2023-12-22 11:22:56,151 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 11:22:56,348 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 11:22:56,348 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:22:56,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:22:56,348 INFO L85 PathProgramCache]: Analyzing trace with hash -2081299130, now seen corresponding path program 1 times [2023-12-22 11:22:56,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:22:56,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795213924] [2023-12-22 11:22:56,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:22:56,350 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 11:22:56,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:22:56,351 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 11:22:56,353 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 11:22:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:22:56,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 11:22:56,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:22:56,974 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 206 proven. 88 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-22 11:22:56,974 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 11:22:58,164 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 206 proven. 88 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-22 11:22:58,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:22:58,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795213924] [2023-12-22 11:22:58,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [795213924] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 11:22:58,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 11:22:58,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-22 11:22:58,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535383043] [2023-12-22 11:22:58,165 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 11:22:58,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 11:22:58,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:22:58,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 11:22:58,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-22 11:22:58,167 INFO L87 Difference]: Start difference. First operand 16072 states and 17718 transitions. Second operand has 6 states, 6 states have (on average 74.16666666666667) internal successors, (445), 5 states have internal predecessors, (445), 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 11:23:03,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:23:38,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:26:40,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:27:07,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:27:20,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:28:45,837 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 [] Received shutdown request... [2023-12-22 11:28:50,401 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 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 11:28:50,435 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 11:28:51,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 11:28:51,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 580 GetRequests, 574 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 11:28:51,206 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 5793 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 6950 mSolverCounterSat, 2516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 337.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5793 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 9466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2516 IncrementalHoareTripleChecker+Valid, 6950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 352.5s IncrementalHoareTripleChecker+Time [2023-12-22 11:28:51,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5793 Valid, 480 Invalid, 9466 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2516 Valid, 6950 Invalid, 0 Unknown, 0 Unchecked, 352.5s Time] [2023-12-22 11:28:51,207 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 11:28:51,224 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 11:28:51,408 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 11:28:51,409 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (16072states) and FLOYD_HOARE automaton (currently 7 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (27754 states constructed, input type IntersectNwa). [2023-12-22 11:28:51,415 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:28:51,417 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 11:28:51,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:28:51 BoogieIcfgContainer [2023-12-22 11:28:51,418 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 11:28:51,419 INFO L158 Benchmark]: Toolchain (without parser) took 863546.80ms. Allocated memory was 197.1MB in the beginning and 559.9MB in the end (delta: 362.8MB). Free memory was 125.8MB in the beginning and 120.8MB in the end (delta: 5.0MB). Peak memory consumption was 397.2MB. Max. memory is 8.0GB. [2023-12-22 11:28:51,419 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 197.1MB. Free memory is still 151.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 11:28:51,419 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1886.30ms. Allocated memory was 197.1MB in the beginning and 264.2MB in the end (delta: 67.1MB). Free memory was 125.5MB in the beginning and 169.1MB in the end (delta: -43.6MB). Peak memory consumption was 116.6MB. Max. memory is 8.0GB. [2023-12-22 11:28:51,419 INFO L158 Benchmark]: Boogie Procedure Inliner took 252.00ms. Allocated memory is still 264.2MB. Free memory was 169.1MB in the beginning and 124.0MB in the end (delta: 45.1MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. [2023-12-22 11:28:51,420 INFO L158 Benchmark]: Boogie Preprocessor took 428.85ms. Allocated memory was 264.2MB in the beginning and 418.4MB in the end (delta: 154.1MB). Free memory was 124.0MB in the beginning and 321.2MB in the end (delta: -197.1MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2023-12-22 11:28:51,420 INFO L158 Benchmark]: RCFGBuilder took 45256.13ms. Allocated memory was 418.4MB in the beginning and 559.9MB in the end (delta: 141.6MB). Free memory was 321.2MB in the beginning and 270.8MB in the end (delta: 50.3MB). Peak memory consumption was 198.7MB. Max. memory is 8.0GB. [2023-12-22 11:28:51,420 INFO L158 Benchmark]: TraceAbstraction took 815715.58ms. Allocated memory is still 559.9MB. Free memory was 269.8MB in the beginning and 120.8MB in the end (delta: 149.0MB). Peak memory consumption was 176.8MB. Max. memory is 8.0GB. [2023-12-22 11:28:51,421 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 197.1MB. Free memory is still 151.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1886.30ms. Allocated memory was 197.1MB in the beginning and 264.2MB in the end (delta: 67.1MB). Free memory was 125.5MB in the beginning and 169.1MB in the end (delta: -43.6MB). Peak memory consumption was 116.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 252.00ms. Allocated memory is still 264.2MB. Free memory was 169.1MB in the beginning and 124.0MB in the end (delta: 45.1MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 428.85ms. Allocated memory was 264.2MB in the beginning and 418.4MB in the end (delta: 154.1MB). Free memory was 124.0MB in the beginning and 321.2MB in the end (delta: -197.1MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. * RCFGBuilder took 45256.13ms. Allocated memory was 418.4MB in the beginning and 559.9MB in the end (delta: 141.6MB). Free memory was 321.2MB in the beginning and 270.8MB in the end (delta: 50.3MB). Peak memory consumption was 198.7MB. Max. memory is 8.0GB. * TraceAbstraction took 815715.58ms. Allocated memory is still 559.9MB. Free memory was 269.8MB in the beginning and 120.8MB in the end (delta: 149.0MB). Peak memory consumption was 176.8MB. 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: 121]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 121). Cancelled while NwaCegarLoop was constructing difference of abstraction (16072states) and FLOYD_HOARE automaton (currently 7 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (27754 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1036 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 815.7s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 804.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14365 SdHoareTripleChecker+Valid, 801.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14365 mSDsluCounter, 11037 SdHoareTripleChecker+Invalid, 712.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1657 mSDsCounter, 7527 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34754 IncrementalHoareTripleChecker+Invalid, 42281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7527 mSolverCounterUnsat, 9380 mSDtfsCounter, 34754 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1703 GetRequests, 1684 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16072occurred in iteration=8, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 120 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 1282 NumberOfCodeBlocks, 1282 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1698 ConstructedInterpolants, 0 QuantifiedInterpolants, 10031 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1713 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 925/1161 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