/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/Problem16_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 14:53:37,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 14:53:37,871 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 14:53:37,874 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 14:53:37,875 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 14:53:37,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 14:53:37,898 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 14:53:37,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 14:53:37,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 14:53:37,902 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 14:53:37,902 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 14:53:37,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 14:53:37,903 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 14:53:37,904 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 14:53:37,904 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 14:53:37,904 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 14:53:37,905 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 14:53:37,905 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 14:53:37,905 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 14:53:37,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 14:53:37,906 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 14:53:37,906 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 14:53:37,906 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 14:53:37,907 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 14:53:37,907 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 14:53:37,907 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 14:53:37,907 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 14:53:37,907 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 14:53:37,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 14:53:37,907 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 14:53:37,908 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 14:53:37,908 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 14:53:37,908 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 14:53:37,908 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 14:53:37,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 14:53:37,909 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 14:53:37,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 14:53:37,909 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 14:53:37,909 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 14:53:37,909 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 14:53:37,909 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 14:53:37,909 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 14:53:37,909 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 14:53:37,910 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 14:53:37,910 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 14:53:37,910 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 14:53:37,910 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 14:53:38,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 14:53:38,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 14:53:38,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 14:53:38,125 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 14:53:38,125 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 14:53:38,126 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label56.c [2023-12-22 14:53:39,199 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 14:53:39,506 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 14:53:39,507 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label56.c [2023-12-22 14:53:39,520 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c18994ce/7fc5366a85624806974311f0970b0f05/FLAG021ce8acd [2023-12-22 14:53:39,531 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c18994ce/7fc5366a85624806974311f0970b0f05 [2023-12-22 14:53:39,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 14:53:39,534 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 14:53:39,536 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 14:53:39,536 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 14:53:39,539 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 14:53:39,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:53:39" (1/1) ... [2023-12-22 14:53:39,541 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6070b66f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:53:39, skipping insertion in model container [2023-12-22 14:53:39,541 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:53:39" (1/1) ... [2023-12-22 14:53:39,592 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 14:53:39,767 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/Problem16_label56.c[3626,3639] [2023-12-22 14:53:40,084 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 14:53:40,096 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 14:53:40,141 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/Problem16_label56.c[3626,3639] [2023-12-22 14:53:40,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 14:53:40,275 INFO L206 MainTranslator]: Completed translation [2023-12-22 14:53:40,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:53:40 WrapperNode [2023-12-22 14:53:40,276 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 14:53:40,277 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 14:53:40,277 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 14:53:40,277 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 14:53:40,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:53:40" (1/1) ... [2023-12-22 14:53:40,314 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:53:40" (1/1) ... [2023-12-22 14:53:40,376 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1767 [2023-12-22 14:53:40,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 14:53:40,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 14:53:40,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 14:53:40,377 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 14:53:40,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:53:40" (1/1) ... [2023-12-22 14:53:40,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:53:40" (1/1) ... [2023-12-22 14:53:40,393 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:53:40" (1/1) ... [2023-12-22 14:53:40,429 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 14:53:40,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:53:40" (1/1) ... [2023-12-22 14:53:40,429 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:53:40" (1/1) ... [2023-12-22 14:53:40,475 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:53:40" (1/1) ... [2023-12-22 14:53:40,483 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:53:40" (1/1) ... [2023-12-22 14:53:40,510 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:53:40" (1/1) ... [2023-12-22 14:53:40,518 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:53:40" (1/1) ... [2023-12-22 14:53:40,541 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 14:53:40,542 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 14:53:40,542 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 14:53:40,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 14:53:40,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:53:40" (1/1) ... [2023-12-22 14:53:40,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 14:53:40,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 14:53:40,582 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 14:53:40,626 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 14:53:40,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 14:53:40,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 14:53:40,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 14:53:40,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 14:53:40,685 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 14:53:40,687 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 14:53:47,555 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 14:53:47,606 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 14:53:47,606 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 14:53:47,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:53:47 BoogieIcfgContainer [2023-12-22 14:53:47,606 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 14:53:47,608 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 14:53:47,608 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 14:53:47,610 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 14:53:47,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:53:39" (1/3) ... [2023-12-22 14:53:47,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a793661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:53:47, skipping insertion in model container [2023-12-22 14:53:47,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:53:40" (2/3) ... [2023-12-22 14:53:47,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a793661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:53:47, skipping insertion in model container [2023-12-22 14:53:47,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:53:47" (3/3) ... [2023-12-22 14:53:47,614 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label56.c [2023-12-22 14:53:47,626 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 14:53:47,627 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 14:53:47,686 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 14:53:47,690 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;@3f706bee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 14:53:47,691 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 14:53:47,699 INFO L276 IsEmpty]: Start isEmpty. Operand has 334 states, 332 states have (on average 1.9909638554216869) internal successors, (661), 333 states have internal predecessors, (661), 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 14:53:47,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-22 14:53:47,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:53:47,705 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 14:53:47,706 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:53:47,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:53:47,710 INFO L85 PathProgramCache]: Analyzing trace with hash -349683723, now seen corresponding path program 1 times [2023-12-22 14:53:47,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:53:47,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605704662] [2023-12-22 14:53:47,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:53:47,720 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 14:53:47,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:53:47,724 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 14:53:47,729 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 14:53:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:53:47,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 14:53:47,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:53:47,792 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 14:53:47,792 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 14:53:47,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:53:47,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605704662] [2023-12-22 14:53:47,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605704662] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 14:53:47,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 14:53:47,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 14:53:47,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572334391] [2023-12-22 14:53:47,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:53:47,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 14:53:47,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:53:47,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 14:53:47,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 14:53:47,817 INFO L87 Difference]: Start difference. First operand has 334 states, 332 states have (on average 1.9909638554216869) internal successors, (661), 333 states have internal predecessors, (661), 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 14:53:47,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:53:47,876 INFO L93 Difference]: Finished difference Result 667 states and 1321 transitions. [2023-12-22 14:53:47,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 14:53:47,878 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 14:53:47,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:53:47,887 INFO L225 Difference]: With dead ends: 667 [2023-12-22 14:53:47,887 INFO L226 Difference]: Without dead ends: 332 [2023-12-22 14:53:47,890 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 14:53:47,892 INFO L413 NwaCegarLoop]: 596 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, 596 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 14:53:47,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 596 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 14:53:47,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2023-12-22 14:53:47,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2023-12-22 14:53:47,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 331 states have (on average 1.8006042296072509) internal successors, (596), 331 states have internal predecessors, (596), 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 14:53:47,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 596 transitions. [2023-12-22 14:53:47,942 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 596 transitions. Word has length 32 [2023-12-22 14:53:47,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:53:47,944 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 596 transitions. [2023-12-22 14:53:47,944 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 14:53:47,944 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 596 transitions. [2023-12-22 14:53:47,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-22 14:53:47,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:53:47,945 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 14:53:47,947 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 (2)] Forceful destruction successful, exit code 0 [2023-12-22 14:53:48,147 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 14:53:48,148 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:53:48,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:53:48,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1302304309, now seen corresponding path program 1 times [2023-12-22 14:53:48,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:53:48,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768943368] [2023-12-22 14:53:48,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:53:48,160 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 14:53:48,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:53:48,162 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 14:53:48,163 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 14:53:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:53:48,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 14:53:48,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:53:48,268 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 14:53:48,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 14:53:48,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:53:48,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768943368] [2023-12-22 14:53:48,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768943368] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 14:53:48,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 14:53:48,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 14:53:48,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537121384] [2023-12-22 14:53:48,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:53:48,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 14:53:48,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:53:48,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 14:53:48,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:53:48,271 INFO L87 Difference]: Start difference. First operand 332 states and 596 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 14:53:58,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:53:58,515 INFO L93 Difference]: Finished difference Result 992 states and 1785 transitions. [2023-12-22 14:53:58,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 14:53:58,515 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 14:53:58,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:53:58,518 INFO L225 Difference]: With dead ends: 992 [2023-12-22 14:53:58,519 INFO L226 Difference]: Without dead ends: 661 [2023-12-22 14:53:58,520 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 14:53:58,521 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 308 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2023-12-22 14:53:58,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 223 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2023-12-22 14:53:58,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2023-12-22 14:53:58,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 661. [2023-12-22 14:53:58,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 660 states have (on average 1.4833333333333334) internal successors, (979), 660 states have internal predecessors, (979), 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 14:53:58,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 979 transitions. [2023-12-22 14:53:58,540 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 979 transitions. Word has length 32 [2023-12-22 14:53:58,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:53:58,540 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 979 transitions. [2023-12-22 14:53:58,540 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 14:53:58,540 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 979 transitions. [2023-12-22 14:53:58,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-22 14:53:58,542 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:53:58,543 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] [2023-12-22 14:53:58,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-22 14:53:58,745 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 14:53:58,745 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:53:58,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:53:58,746 INFO L85 PathProgramCache]: Analyzing trace with hash -649797084, now seen corresponding path program 1 times [2023-12-22 14:53:58,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:53:58,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253542713] [2023-12-22 14:53:58,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:53:58,748 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 14:53:58,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:53:58,749 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 14:53:58,750 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 14:53:58,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:53:58,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 14:53:58,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:53:58,967 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 14:53:58,967 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 14:53:58,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:53:58,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253542713] [2023-12-22 14:53:58,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253542713] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 14:53:58,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 14:53:58,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 14:53:58,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579031608] [2023-12-22 14:53:58,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:53:58,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 14:53:58,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:53:58,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 14:53:58,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:53:58,972 INFO L87 Difference]: Start difference. First operand 661 states and 979 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:54:05,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:54:05,739 INFO L93 Difference]: Finished difference Result 1650 states and 2340 transitions. [2023-12-22 14:54:05,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 14:54:05,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-22 14:54:05,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:54:05,743 INFO L225 Difference]: With dead ends: 1650 [2023-12-22 14:54:05,743 INFO L226 Difference]: Without dead ends: 990 [2023-12-22 14:54:05,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 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 14:54:05,744 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 260 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-12-22 14:54:05,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 247 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-12-22 14:54:05,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2023-12-22 14:54:05,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 990. [2023-12-22 14:54:05,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 989 states have (on average 1.352881698685541) internal successors, (1338), 989 states have internal predecessors, (1338), 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 14:54:05,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1338 transitions. [2023-12-22 14:54:05,782 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1338 transitions. Word has length 104 [2023-12-22 14:54:05,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:54:05,782 INFO L495 AbstractCegarLoop]: Abstraction has 990 states and 1338 transitions. [2023-12-22 14:54:05,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 14:54:05,783 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1338 transitions. [2023-12-22 14:54:05,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-22 14:54:05,785 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:54:05,785 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] [2023-12-22 14:54:05,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 14:54:05,988 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 14:54:05,989 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:54:05,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:54:05,989 INFO L85 PathProgramCache]: Analyzing trace with hash -199723825, now seen corresponding path program 1 times [2023-12-22 14:54:05,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:54:05,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956230118] [2023-12-22 14:54:05,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:54:05,990 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 14:54:05,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:54:06,008 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 14:54:06,009 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 14:54:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:54:06,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 14:54:06,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:54:06,333 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 14:54:06,333 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 14:54:09,014 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 14:54:09,015 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:54:09,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956230118] [2023-12-22 14:54:09,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956230118] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 14:54:09,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 14:54:09,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-22 14:54:09,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083181880] [2023-12-22 14:54:09,015 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 14:54:09,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 14:54:09,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:54:09,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 14:54:09,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-22 14:54:09,017 INFO L87 Difference]: Start difference. First operand 990 states and 1338 transitions. Second operand has 6 states, 6 states have (on average 39.5) internal successors, (237), 5 states have internal predecessors, (237), 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 14:54:22,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:54:23,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:54:24,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:54:28,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:54:30,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:54:32,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:54:53,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:54:57,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:54:59,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:55:03,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:55:07,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:55:08,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:55:14,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:55:18,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:55:27,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:55:58,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:56:09,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:56:10,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:56:47,581 WARN L539 Checker$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 14:56:51,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:56:54,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:57:02,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:57:11,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:57:31,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:57:54,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:57:54,838 INFO L93 Difference]: Finished difference Result 3953 states and 5841 transitions. [2023-12-22 14:57:54,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 14:57:54,838 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.5) internal successors, (237), 5 states have internal predecessors, (237), 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 119 [2023-12-22 14:57:54,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:57:54,847 INFO L225 Difference]: With dead ends: 3953 [2023-12-22 14:57:54,847 INFO L226 Difference]: Without dead ends: 3293 [2023-12-22 14:57:54,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-22 14:57:54,849 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 2282 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 2907 mSolverCounterSat, 1589 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 214.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2282 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 4498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1589 IncrementalHoareTripleChecker+Valid, 2907 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 225.4s IncrementalHoareTripleChecker+Time [2023-12-22 14:57:54,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2282 Valid, 31 Invalid, 4498 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1589 Valid, 2907 Invalid, 2 Unknown, 0 Unchecked, 225.4s Time] [2023-12-22 14:57:54,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3293 states. [2023-12-22 14:57:54,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3293 to 3293. [2023-12-22 14:57:54,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3293 states, 3292 states have (on average 1.3359659781287971) internal successors, (4398), 3292 states have internal predecessors, (4398), 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 14:57:54,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3293 states to 3293 states and 4398 transitions. [2023-12-22 14:57:54,911 INFO L78 Accepts]: Start accepts. Automaton has 3293 states and 4398 transitions. Word has length 119 [2023-12-22 14:57:54,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:57:54,912 INFO L495 AbstractCegarLoop]: Abstraction has 3293 states and 4398 transitions. [2023-12-22 14:57:54,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.5) internal successors, (237), 5 states have internal predecessors, (237), 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 14:57:54,913 INFO L276 IsEmpty]: Start isEmpty. Operand 3293 states and 4398 transitions. [2023-12-22 14:57:54,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-22 14:57:54,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:57:54,920 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 14:57:54,925 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 14:57:55,123 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 14:57:55,123 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:57:55,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:57:55,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1438000654, now seen corresponding path program 1 times [2023-12-22 14:57:55,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:57:55,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353278000] [2023-12-22 14:57:55,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:57:55,125 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 14:57:55,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:57:55,133 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 14:57:55,135 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 14:57:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:57:55,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 14:57:55,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:57:55,766 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 14:57:55,766 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 14:57:55,766 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:57:55,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353278000] [2023-12-22 14:57:55,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353278000] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 14:57:55,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 14:57:55,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 14:57:55,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349996107] [2023-12-22 14:57:55,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:57:55,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 14:57:55,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:57:55,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 14:57:55,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 14:57:55,768 INFO L87 Difference]: Start difference. First operand 3293 states and 4398 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 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 14:58:03,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:58:03,153 INFO L93 Difference]: Finished difference Result 6256 states and 8340 transitions. [2023-12-22 14:58:03,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 14:58:03,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 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 157 [2023-12-22 14:58:03,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:58:03,163 INFO L225 Difference]: With dead ends: 6256 [2023-12-22 14:58:03,163 INFO L226 Difference]: Without dead ends: 3622 [2023-12-22 14:58:03,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 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 14:58:03,168 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 206 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-12-22 14:58:03,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 270 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-12-22 14:58:03,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2023-12-22 14:58:03,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3622. [2023-12-22 14:58:03,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3621 states have (on average 1.3070974868820768) internal successors, (4733), 3621 states have internal predecessors, (4733), 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 14:58:03,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 4733 transitions. [2023-12-22 14:58:03,212 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 4733 transitions. Word has length 157 [2023-12-22 14:58:03,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:58:03,232 INFO L495 AbstractCegarLoop]: Abstraction has 3622 states and 4733 transitions. [2023-12-22 14:58:03,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 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 14:58:03,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 4733 transitions. [2023-12-22 14:58:03,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-22 14:58:03,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:58:03,235 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, 1, 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 14:58:03,258 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 14:58:03,435 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 14:58:03,435 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:58:03,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:58:03,436 INFO L85 PathProgramCache]: Analyzing trace with hash 890898307, now seen corresponding path program 1 times [2023-12-22 14:58:03,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:58:03,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749975391] [2023-12-22 14:58:03,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:58:03,437 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 14:58:03,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:58:03,438 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 14:58:03,492 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 14:58:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:58:03,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 14:58:03,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:58:04,673 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 71 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 14:58:04,674 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 14:58:10,648 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 71 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 14:58:10,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:58:10,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [749975391] [2023-12-22 14:58:10,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [749975391] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 14:58:10,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 14:58:10,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-22 14:58:10,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013872899] [2023-12-22 14:58:10,649 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 14:58:10,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 14:58:10,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:58:10,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 14:58:10,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-22 14:58:10,650 INFO L87 Difference]: Start difference. First operand 3622 states and 4733 transitions. Second operand has 6 states, 6 states have (on average 55.0) internal successors, (330), 5 states have internal predecessors, (330), 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 14:58:36,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:59:09,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:59:10,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 14:59:12,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:59:12,728 INFO L93 Difference]: Finished difference Result 7259 states and 9639 transitions. [2023-12-22 14:59:12,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 14:59:12,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 55.0) internal successors, (330), 5 states have internal predecessors, (330), 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 186 [2023-12-22 14:59:12,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:59:12,749 INFO L225 Difference]: With dead ends: 7259 [2023-12-22 14:59:12,749 INFO L226 Difference]: Without dead ends: 3951 [2023-12-22 14:59:12,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-22 14:59:12,752 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 491 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 2943 mSolverCounterSat, 492 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 3436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 492 IncrementalHoareTripleChecker+Valid, 2943 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.7s IncrementalHoareTripleChecker+Time [2023-12-22 14:59:12,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 288 Invalid, 3436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [492 Valid, 2943 Invalid, 1 Unknown, 0 Unchecked, 61.7s Time] [2023-12-22 14:59:12,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3951 states. [2023-12-22 14:59:12,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3951 to 3951. [2023-12-22 14:59:12,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3951 states, 3950 states have (on average 1.1134177215189873) internal successors, (4398), 3950 states have internal predecessors, (4398), 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 14:59:12,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3951 states to 3951 states and 4398 transitions. [2023-12-22 14:59:12,802 INFO L78 Accepts]: Start accepts. Automaton has 3951 states and 4398 transitions. Word has length 186 [2023-12-22 14:59:12,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:59:12,803 INFO L495 AbstractCegarLoop]: Abstraction has 3951 states and 4398 transitions. [2023-12-22 14:59:12,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.0) internal successors, (330), 5 states have internal predecessors, (330), 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 14:59:12,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3951 states and 4398 transitions. [2023-12-22 14:59:12,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2023-12-22 14:59:12,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:59:12,807 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:12,813 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 14:59:13,011 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 14:59:13,012 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:59:13,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:59:13,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1294429886, now seen corresponding path program 1 times [2023-12-22 14:59:13,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:59:13,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171605068] [2023-12-22 14:59:13,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:59:13,014 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 14:59:13,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:59:13,015 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 14:59:13,039 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 14:59:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:59:13,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 14:59:13,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:59:14,066 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 14:59:14,067 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 14:59:14,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:59:14,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171605068] [2023-12-22 14:59:14,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171605068] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 14:59:14,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 14:59:14,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 14:59:14,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560170443] [2023-12-22 14:59:14,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:59:14,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 14:59:14,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:59:14,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 14:59:14,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 14:59:14,068 INFO L87 Difference]: Start difference. First operand 3951 states and 4398 transitions. Second operand has 4 states, 4 states have (on average 98.0) internal successors, (392), 3 states have internal predecessors, (392), 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 14:59:19,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:59:19,638 INFO L93 Difference]: Finished difference Result 7572 states and 8464 transitions. [2023-12-22 14:59:19,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 14:59:19,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 3 states have internal predecessors, (392), 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 392 [2023-12-22 14:59:19,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:59:19,647 INFO L225 Difference]: With dead ends: 7572 [2023-12-22 14:59:19,647 INFO L226 Difference]: Without dead ends: 3951 [2023-12-22 14:59:19,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 14:59:19,650 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 301 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-22 14:59:19,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 136 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-12-22 14:59:19,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3951 states. [2023-12-22 14:59:19,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3951 to 3951. [2023-12-22 14:59:19,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3951 states, 3950 states have (on average 1.1116455696202532) internal successors, (4391), 3950 states have internal predecessors, (4391), 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 14:59:19,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3951 states to 3951 states and 4391 transitions. [2023-12-22 14:59:19,692 INFO L78 Accepts]: Start accepts. Automaton has 3951 states and 4391 transitions. Word has length 392 [2023-12-22 14:59:19,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:59:19,692 INFO L495 AbstractCegarLoop]: Abstraction has 3951 states and 4391 transitions. [2023-12-22 14:59:19,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 3 states have internal predecessors, (392), 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 14:59:19,692 INFO L276 IsEmpty]: Start isEmpty. Operand 3951 states and 4391 transitions. [2023-12-22 14:59:19,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2023-12-22 14:59:19,697 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:59:19,697 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:19,708 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 14:59:19,901 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 14:59:19,902 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:59:19,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:59:19,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1026849507, now seen corresponding path program 1 times [2023-12-22 14:59:19,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:59:19,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732648061] [2023-12-22 14:59:19,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:59:19,904 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 14:59:19,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:59:19,905 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 14:59:19,906 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 14:59:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:59:20,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 14:59:20,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:59:21,119 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 92 proven. 315 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 14:59:21,119 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 14:59:22,273 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-12-22 14:59:22,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 14:59:22,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732648061] [2023-12-22 14:59:22,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732648061] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 14:59:22,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 14:59:22,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-22 14:59:22,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102012305] [2023-12-22 14:59:22,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 14:59:22,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 14:59:22,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 14:59:22,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 14:59:22,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 14:59:22,275 INFO L87 Difference]: Start difference. First operand 3951 states and 4391 transitions. Second operand has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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 14:59:36,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 14:59:36,222 INFO L93 Difference]: Finished difference Result 8559 states and 9796 transitions. [2023-12-22 14:59:36,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 14:59:36,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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 496 [2023-12-22 14:59:36,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 14:59:36,235 INFO L225 Difference]: With dead ends: 8559 [2023-12-22 14:59:36,235 INFO L226 Difference]: Without dead ends: 5267 [2023-12-22 14:59:36,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 990 GetRequests, 986 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 14:59:36,240 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 208 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-12-22 14:59:36,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 28 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2023-12-22 14:59:36,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5267 states. [2023-12-22 14:59:36,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5267 to 5267. [2023-12-22 14:59:36,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 1.1412837067983288) internal successors, (6010), 5266 states have internal predecessors, (6010), 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 14:59:36,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 6010 transitions. [2023-12-22 14:59:36,338 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 6010 transitions. Word has length 496 [2023-12-22 14:59:36,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 14:59:36,339 INFO L495 AbstractCegarLoop]: Abstraction has 5267 states and 6010 transitions. [2023-12-22 14:59:36,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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 14:59:36,339 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 6010 transitions. [2023-12-22 14:59:36,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2023-12-22 14:59:36,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 14:59:36,348 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 14:59:36,355 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 14:59:36,553 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 14:59:36,554 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 14:59:36,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 14:59:36,554 INFO L85 PathProgramCache]: Analyzing trace with hash 557504911, now seen corresponding path program 1 times [2023-12-22 14:59:36,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 14:59:36,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765353193] [2023-12-22 14:59:36,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 14:59:36,556 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 14:59:36,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 14:59:36,557 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 14:59:36,558 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 14:59:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 14:59:36,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 14:59:36,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 14:59:38,394 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 301 proven. 377 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-22 14:59:38,394 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 15:00:17,019 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 301 proven. 377 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-22 15:00:17,020 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 15:00:17,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765353193] [2023-12-22 15:00:17,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765353193] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 15:00:17,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 15:00:17,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-22 15:00:17,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457313295] [2023-12-22 15:00:17,020 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 15:00:17,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 15:00:17,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 15:00:17,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 15:00:17,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-22 15:00:17,022 INFO L87 Difference]: Start difference. First operand 5267 states and 6010 transitions. Second operand has 9 states, 9 states have (on average 118.77777777777777) internal successors, (1069), 8 states have internal predecessors, (1069), 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 15:00:35,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:00:43,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:00:52,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:00:54,488 WARN L539 Checker$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 15:01:05,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:01:08,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:01:11,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:01:25,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:01:30,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:01:43,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:01:44,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:01:54,789 WARN L539 Checker$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 15:02:00,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:02:04,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:02:17,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:02:18,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:02:48,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:02:58,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:03:00,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:03:02,590 WARN L539 Checker$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 15:03:06,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:03:13,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:03:15,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:03:16,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:03:23,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:03:31,621 WARN L539 Checker$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 15:03:34,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:03:35,519 WARN L539 Checker$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 15:03:40,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:03:44,744 WARN L539 Checker$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 15:03:45,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:03:47,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:04:08,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:04:10,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:04:30,742 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 15:04:36,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 15:04:36,679 INFO L93 Difference]: Finished difference Result 19973 states and 23727 transitions. [2023-12-22 15:04:36,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-22 15:04:36,688 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 118.77777777777777) internal successors, (1069), 8 states have internal predecessors, (1069), 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 607 [2023-12-22 15:04:36,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 15:04:36,737 INFO L225 Difference]: With dead ends: 19973 [2023-12-22 15:04:36,737 INFO L226 Difference]: Without dead ends: 15365 [2023-12-22 15:04:36,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1219 GetRequests, 1205 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2023-12-22 15:04:36,748 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 2651 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 5186 mSolverCounterSat, 701 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 231.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2651 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 5887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 701 IncrementalHoareTripleChecker+Valid, 5186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 257.6s IncrementalHoareTripleChecker+Time [2023-12-22 15:04:36,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2651 Valid, 133 Invalid, 5887 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [701 Valid, 5186 Invalid, 0 Unknown, 0 Unchecked, 257.6s Time] [2023-12-22 15:04:36,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15365 states. [2023-12-22 15:04:36,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15365 to 12176. [2023-12-22 15:04:36,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12176 states, 12175 states have (on average 1.1425051334702259) internal successors, (13910), 12175 states have internal predecessors, (13910), 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 15:04:36,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12176 states to 12176 states and 13910 transitions. [2023-12-22 15:04:36,948 INFO L78 Accepts]: Start accepts. Automaton has 12176 states and 13910 transitions. Word has length 607 [2023-12-22 15:04:36,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 15:04:36,948 INFO L495 AbstractCegarLoop]: Abstraction has 12176 states and 13910 transitions. [2023-12-22 15:04:36,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 118.77777777777777) internal successors, (1069), 8 states have internal predecessors, (1069), 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 15:04:36,949 INFO L276 IsEmpty]: Start isEmpty. Operand 12176 states and 13910 transitions. [2023-12-22 15:04:36,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2023-12-22 15:04:36,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 15:04:36,955 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 15:04:36,978 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 (10)] Ended with exit code 0 [2023-12-22 15:04:37,161 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 15:04:37,165 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 15:04:37,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 15:04:37,166 INFO L85 PathProgramCache]: Analyzing trace with hash 630053460, now seen corresponding path program 1 times [2023-12-22 15:04:37,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 15:04:37,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861437123] [2023-12-22 15:04:37,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 15:04:37,168 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 15:04:37,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 15:04:37,169 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 15:04:37,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 15:04:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 15:04:37,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 15:04:37,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 15:04:40,234 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 92 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 15:04:40,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 15:05:10,630 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 92 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 15:05:10,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 15:05:10,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861437123] [2023-12-22 15:05:10,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861437123] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 15:05:10,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 15:05:10,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-22 15:05:10,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036034784] [2023-12-22 15:05:10,631 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 15:05:10,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 15:05:10,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 15:05:10,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 15:05:10,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-22 15:05:10,633 INFO L87 Difference]: Start difference. First operand 12176 states and 13910 transitions. Second operand has 9 states, 9 states have (on average 133.88888888888889) internal successors, (1205), 8 states have internal predecessors, (1205), 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 15:05:35,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:06:20,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:06:48,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:07:39,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 15:07:39,729 INFO L93 Difference]: Finished difference Result 29571 states and 33733 transitions. [2023-12-22 15:07:39,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 15:07:39,733 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 133.88888888888889) internal successors, (1205), 8 states have internal predecessors, (1205), 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 637 [2023-12-22 15:07:39,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 15:07:39,756 INFO L225 Difference]: With dead ends: 29571 [2023-12-22 15:07:39,756 INFO L226 Difference]: Without dead ends: 18383 [2023-12-22 15:07:39,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1282 GetRequests, 1265 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2023-12-22 15:07:39,762 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 3121 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 9164 mSolverCounterSat, 588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 128.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3121 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 9752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 588 IncrementalHoareTripleChecker+Valid, 9164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 146.3s IncrementalHoareTripleChecker+Time [2023-12-22 15:07:39,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3121 Valid, 191 Invalid, 9752 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [588 Valid, 9164 Invalid, 0 Unknown, 0 Unchecked, 146.3s Time] [2023-12-22 15:07:39,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18383 states. [2023-12-22 15:07:39,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18383 to 12834. [2023-12-22 15:07:39,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12834 states, 12833 states have (on average 1.1363671783682694) internal successors, (14583), 12833 states have internal predecessors, (14583), 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 15:07:39,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12834 states to 12834 states and 14583 transitions. [2023-12-22 15:07:39,897 INFO L78 Accepts]: Start accepts. Automaton has 12834 states and 14583 transitions. Word has length 637 [2023-12-22 15:07:39,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 15:07:39,897 INFO L495 AbstractCegarLoop]: Abstraction has 12834 states and 14583 transitions. [2023-12-22 15:07:39,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.88888888888889) internal successors, (1205), 8 states have internal predecessors, (1205), 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 15:07:39,898 INFO L276 IsEmpty]: Start isEmpty. Operand 12834 states and 14583 transitions. [2023-12-22 15:07:39,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 724 [2023-12-22 15:07:39,905 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 15:07:39,905 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:07:39,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-22 15:07:40,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 15:07:40,109 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 15:07:40,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 15:07:40,110 INFO L85 PathProgramCache]: Analyzing trace with hash -865081296, now seen corresponding path program 1 times [2023-12-22 15:07:40,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 15:07:40,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496510367] [2023-12-22 15:07:40,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 15:07:40,113 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 15:07:40,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 15:07:40,114 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 15:07:40,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-22 15:07:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 15:07:40,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 15:07:40,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 15:07:42,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 163 proven. 885 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-12-22 15:07:42,207 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 15:07:44,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 703 proven. 345 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-12-22 15:07:44,678 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 15:07:44,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496510367] [2023-12-22 15:07:44,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496510367] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 15:07:44,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 15:07:44,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-22 15:07:44,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255603447] [2023-12-22 15:07:44,678 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 15:07:44,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 15:07:44,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 15:07:44,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 15:07:44,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-22 15:07:44,680 INFO L87 Difference]: Start difference. First operand 12834 states and 14583 transitions. Second operand has 9 states, 9 states have (on average 124.11111111111111) internal successors, (1117), 9 states have internal predecessors, (1117), 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 15:08:00,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 15:08:00,392 INFO L93 Difference]: Finished difference Result 26025 states and 29737 transitions. [2023-12-22 15:08:00,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-22 15:08:00,401 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 124.11111111111111) internal successors, (1117), 9 states have internal predecessors, (1117), 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 723 [2023-12-22 15:08:00,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 15:08:00,421 INFO L225 Difference]: With dead ends: 26025 [2023-12-22 15:08:00,421 INFO L226 Difference]: Without dead ends: 14508 [2023-12-22 15:08:00,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1453 GetRequests, 1440 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2023-12-22 15:08:00,429 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 2159 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 7220 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2159 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 7452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 7220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2023-12-22 15:08:00,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2159 Valid, 184 Invalid, 7452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 7220 Invalid, 0 Unknown, 0 Unchecked, 15.4s Time] [2023-12-22 15:08:00,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14508 states. [2023-12-22 15:08:00,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14508 to 13163. [2023-12-22 15:08:00,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13163 states, 13162 states have (on average 1.1172314237957757) internal successors, (14705), 13162 states have internal predecessors, (14705), 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 15:08:00,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13163 states to 13163 states and 14705 transitions. [2023-12-22 15:08:00,553 INFO L78 Accepts]: Start accepts. Automaton has 13163 states and 14705 transitions. Word has length 723 [2023-12-22 15:08:00,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 15:08:00,554 INFO L495 AbstractCegarLoop]: Abstraction has 13163 states and 14705 transitions. [2023-12-22 15:08:00,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 124.11111111111111) internal successors, (1117), 9 states have internal predecessors, (1117), 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 15:08:00,554 INFO L276 IsEmpty]: Start isEmpty. Operand 13163 states and 14705 transitions. [2023-12-22 15:08:00,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2023-12-22 15:08:00,563 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 15:08:00,563 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:08:00,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-22 15:08:00,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 15:08:00,768 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 15:08:00,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 15:08:00,769 INFO L85 PathProgramCache]: Analyzing trace with hash 499631396, now seen corresponding path program 1 times [2023-12-22 15:08:00,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 15:08:00,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498700332] [2023-12-22 15:08:00,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 15:08:00,771 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 15:08:00,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 15:08:00,772 INFO L229 MonitoredProcess]: Starting monitored process 13 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 15:08:00,806 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 (13)] Waiting until timeout for monitored process [2023-12-22 15:08:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 15:08:00,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 15:08:00,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 15:08:01,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 980 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2023-12-22 15:08:01,233 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 15:08:01,233 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 15:08:01,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498700332] [2023-12-22 15:08:01,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498700332] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 15:08:01,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 15:08:01,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 15:08:01,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603815051] [2023-12-22 15:08:01,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 15:08:01,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 15:08:01,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 15:08:01,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 15:08:01,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 15:08:01,235 INFO L87 Difference]: Start difference. First operand 13163 states and 14705 transitions. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 15:08:07,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 15:08:07,861 INFO L93 Difference]: Finished difference Result 27312 states and 30615 transitions. [2023-12-22 15:08:07,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 15:08:07,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 780 [2023-12-22 15:08:07,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 15:08:07,894 INFO L225 Difference]: With dead ends: 27312 [2023-12-22 15:08:07,895 INFO L226 Difference]: Without dead ends: 15466 [2023-12-22 15:08:07,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 779 GetRequests, 778 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 15:08:07,908 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 171 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-22 15:08:07,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 449 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-12-22 15:08:07,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15466 states. [2023-12-22 15:08:08,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15466 to 15466. [2023-12-22 15:08:08,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15466 states, 15465 states have (on average 1.1029421273844164) internal successors, (17057), 15465 states have internal predecessors, (17057), 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 15:08:08,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15466 states to 15466 states and 17057 transitions. [2023-12-22 15:08:08,115 INFO L78 Accepts]: Start accepts. Automaton has 15466 states and 17057 transitions. Word has length 780 [2023-12-22 15:08:08,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 15:08:08,116 INFO L495 AbstractCegarLoop]: Abstraction has 15466 states and 17057 transitions. [2023-12-22 15:08:08,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 15:08:08,116 INFO L276 IsEmpty]: Start isEmpty. Operand 15466 states and 17057 transitions. [2023-12-22 15:08:08,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2023-12-22 15:08:08,125 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 15:08:08,125 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 15:08:08,132 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 (13)] Forceful destruction successful, exit code 0 [2023-12-22 15:08:08,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /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 15:08:08,331 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 15:08:08,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 15:08:08,331 INFO L85 PathProgramCache]: Analyzing trace with hash -117622318, now seen corresponding path program 1 times [2023-12-22 15:08:08,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 15:08:08,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691836774] [2023-12-22 15:08:08,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 15:08:08,334 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 15:08:08,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 15:08:08,335 INFO L229 MonitoredProcess]: Starting monitored process 14 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 15:08:08,336 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 (14)] Waiting until timeout for monitored process [2023-12-22 15:08:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 15:08:08,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 876 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 15:08:08,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 15:08:09,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 666 proven. 249 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2023-12-22 15:08:09,667 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-22 15:08:17,492 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 15:08:17,502 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 (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 15:08:18,496 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 15:08:18,518 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 (14)] Forceful destruction successful, exit code 0 [2023-12-22 15:08:18,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-22 15:08:18,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /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 15:08:18,697 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 805 with TraceHistMax 6,while TraceCheckSpWp was constructing backward predicates,while executing Executor. [2023-12-22 15:08:18,701 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 15:08:18,703 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 15:08:18,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 03:08:18 BoogieIcfgContainer [2023-12-22 15:08:18,704 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 15:08:18,704 INFO L158 Benchmark]: Toolchain (without parser) took 879170.79ms. Allocated memory was 263.2MB in the beginning and 340.8MB in the end (delta: 77.6MB). Free memory was 209.9MB in the beginning and 132.6MB in the end (delta: 77.3MB). Peak memory consumption was 155.3MB. Max. memory is 8.0GB. [2023-12-22 15:08:18,704 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory is still 131.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 15:08:18,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 740.29ms. Allocated memory is still 263.2MB. Free memory was 209.9MB in the beginning and 200.8MB in the end (delta: 9.1MB). Peak memory consumption was 51.4MB. Max. memory is 8.0GB. [2023-12-22 15:08:18,705 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.47ms. Allocated memory is still 263.2MB. Free memory was 200.8MB in the beginning and 188.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-22 15:08:18,705 INFO L158 Benchmark]: Boogie Preprocessor took 164.57ms. Allocated memory is still 263.2MB. Free memory was 188.2MB in the beginning and 175.1MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-22 15:08:18,705 INFO L158 Benchmark]: RCFGBuilder took 7064.56ms. Allocated memory is still 263.2MB. Free memory was 175.1MB in the beginning and 159.4MB in the end (delta: 15.7MB). Peak memory consumption was 104.3MB. Max. memory is 8.0GB. [2023-12-22 15:08:18,705 INFO L158 Benchmark]: TraceAbstraction took 871096.31ms. Allocated memory was 263.2MB in the beginning and 340.8MB in the end (delta: 77.6MB). Free memory was 158.9MB in the beginning and 132.6MB in the end (delta: 26.3MB). Peak memory consumption was 103.4MB. Max. memory is 8.0GB. [2023-12-22 15:08:18,706 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory is still 131.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 740.29ms. Allocated memory is still 263.2MB. Free memory was 209.9MB in the beginning and 200.8MB in the end (delta: 9.1MB). Peak memory consumption was 51.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 99.47ms. Allocated memory is still 263.2MB. Free memory was 200.8MB in the beginning and 188.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 164.57ms. Allocated memory is still 263.2MB. Free memory was 188.2MB in the beginning and 175.1MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * RCFGBuilder took 7064.56ms. Allocated memory is still 263.2MB. Free memory was 175.1MB in the beginning and 159.4MB in the end (delta: 15.7MB). Peak memory consumption was 104.3MB. Max. memory is 8.0GB. * TraceAbstraction took 871096.31ms. Allocated memory was 263.2MB in the beginning and 340.8MB in the end (delta: 77.6MB). Free memory was 158.9MB in the beginning and 132.6MB in the end (delta: 26.3MB). Peak memory consumption was 103.4MB. 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: 116]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 116). Cancelled while NwaCegarLoop was analyzing trace of length 805 with TraceHistMax 6,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 334 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 871.0s, OverallIterations: 13, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 763.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 12158 SdHoareTripleChecker+Valid, 756.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12158 mSDsluCounter, 2776 SdHoareTripleChecker+Invalid, 687.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 303 mSDsCounter, 4183 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33247 IncrementalHoareTripleChecker+Invalid, 37433 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4183 mSolverCounterUnsat, 2473 mSDtfsCounter, 33247 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7043 GetRequests, 6979 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15466occurred in iteration=12, InterpolantAutomatonStates: 79, 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, 12 MinimizatonAttempts, 10083 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 92.2s InterpolantComputationTime, 4265 NumberOfCodeBlocks, 4265 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 7015 ConstructedInterpolants, 0 QuantifiedInterpolants, 47213 SizeOfPredicates, 17 NumberOfNonLiveVariables, 4850 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 3947/7276 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