/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/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label02.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 00:13:15,027 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 00:13:15,090 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 00:13:15,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 00:13:15,094 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 00:13:15,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 00:13:15,120 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 00:13:15,120 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 00:13:15,121 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 00:13:15,124 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 00:13:15,124 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 00:13:15,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 00:13:15,125 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 00:13:15,126 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 00:13:15,126 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 00:13:15,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 00:13:15,126 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 00:13:15,127 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 00:13:15,127 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 00:13:15,127 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 00:13:15,127 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 00:13:15,127 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 00:13:15,127 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 00:13:15,128 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 00:13:15,128 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 00:13:15,128 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 00:13:15,128 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 00:13:15,128 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 00:13:15,128 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 00:13:15,128 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 00:13:15,129 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 00:13:15,129 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 00:13:15,129 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 00:13:15,130 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 00:13:15,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 00:13:15,130 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 00:13:15,130 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 00:13:15,130 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 00:13:15,130 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 00:13:15,130 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 00:13:15,130 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 00:13:15,130 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 00:13:15,131 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 00:13:15,131 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 00:13:15,131 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 00:13:15,131 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 00:13:15,131 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 00:13:15,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 00:13:15,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 00:13:15,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 00:13:15,353 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 00:13:15,353 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 00:13:15,355 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label02.c [2023-12-22 00:13:16,419 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 00:13:16,773 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 00:13:16,774 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label02.c [2023-12-22 00:13:16,805 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d148f99f6/7fd720bf7eb142a5b31eae768c5532cc/FLAGabd856a7f [2023-12-22 00:13:16,818 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d148f99f6/7fd720bf7eb142a5b31eae768c5532cc [2023-12-22 00:13:16,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 00:13:16,821 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 00:13:16,823 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 00:13:16,824 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 00:13:16,827 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 00:13:16,828 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:13:16" (1/1) ... [2023-12-22 00:13:16,829 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@417d06b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:16, skipping insertion in model container [2023-12-22 00:13:16,829 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:13:16" (1/1) ... [2023-12-22 00:13:16,919 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 00:13:17,209 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label02.c[8616,8629] [2023-12-22 00:13:17,255 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label02.c[15906,15919] [2023-12-22 00:13:17,863 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 00:13:17,879 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 00:13:17,909 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label02.c[8616,8629] [2023-12-22 00:13:17,921 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label02.c[15906,15919] [2023-12-22 00:13:18,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 00:13:18,266 INFO L206 MainTranslator]: Completed translation [2023-12-22 00:13:18,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:18 WrapperNode [2023-12-22 00:13:18,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 00:13:18,268 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 00:13:18,268 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 00:13:18,268 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 00:13:18,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:18" (1/1) ... [2023-12-22 00:13:18,327 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:18" (1/1) ... [2023-12-22 00:13:18,462 INFO L138 Inliner]: procedures = 35, calls = 20, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 5013 [2023-12-22 00:13:18,462 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 00:13:18,463 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 00:13:18,463 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 00:13:18,463 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 00:13:18,471 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:18" (1/1) ... [2023-12-22 00:13:18,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:18" (1/1) ... [2023-12-22 00:13:18,488 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:18" (1/1) ... [2023-12-22 00:13:18,538 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 00:13:18,538 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:18" (1/1) ... [2023-12-22 00:13:18,539 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:18" (1/1) ... [2023-12-22 00:13:18,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:18" (1/1) ... [2023-12-22 00:13:18,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:18" (1/1) ... [2023-12-22 00:13:18,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:18" (1/1) ... [2023-12-22 00:13:18,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:18" (1/1) ... [2023-12-22 00:13:18,684 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 00:13:18,685 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 00:13:18,685 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 00:13:18,685 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 00:13:18,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:18" (1/1) ... [2023-12-22 00:13:18,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 00:13:18,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 00:13:18,710 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 00:13:18,726 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 00:13:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 00:13:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 00:13:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 00:13:18,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 00:13:18,833 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 00:13:18,835 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 00:13:45,533 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 00:13:45,604 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 00:13:45,604 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 00:13:45,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:13:45 BoogieIcfgContainer [2023-12-22 00:13:45,605 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 00:13:45,606 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 00:13:45,606 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 00:13:45,609 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 00:13:45,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:13:16" (1/3) ... [2023-12-22 00:13:45,610 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c55b32e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:13:45, skipping insertion in model container [2023-12-22 00:13:45,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:18" (2/3) ... [2023-12-22 00:13:45,610 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c55b32e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:13:45, skipping insertion in model container [2023-12-22 00:13:45,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:13:45" (3/3) ... [2023-12-22 00:13:45,611 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label02.c [2023-12-22 00:13:45,624 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 00:13:45,624 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 00:13:45,679 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 00:13:45,683 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;@51584ba3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 00:13:45,684 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 00:13:45,693 INFO L276 IsEmpty]: Start isEmpty. Operand has 820 states, 817 states have (on average 1.97796817625459) internal successors, (1616), 819 states have internal predecessors, (1616), 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 00:13:45,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-22 00:13:45,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:45,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:45,701 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:45,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:45,707 INFO L85 PathProgramCache]: Analyzing trace with hash -404549255, now seen corresponding path program 1 times [2023-12-22 00:13:45,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:45,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823559674] [2023-12-22 00:13:45,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:45,718 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 00:13:45,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:45,721 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 00:13:45,726 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 00:13:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:45,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 00:13:45,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:45,817 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 00:13:45,817 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:45,818 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:45,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823559674] [2023-12-22 00:13:45,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [823559674] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:45,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:45,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:13:45,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760518055] [2023-12-22 00:13:45,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:45,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 00:13:45,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:45,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 00:13:45,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 00:13:45,844 INFO L87 Difference]: Start difference. First operand has 820 states, 817 states have (on average 1.97796817625459) internal successors, (1616), 819 states have internal predecessors, (1616), 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 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 00:13:45,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:45,934 INFO L93 Difference]: Finished difference Result 1613 states and 3180 transitions. [2023-12-22 00:13:45,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 00:13:45,937 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 19 [2023-12-22 00:13:45,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:45,949 INFO L225 Difference]: With dead ends: 1613 [2023-12-22 00:13:45,949 INFO L226 Difference]: Without dead ends: 816 [2023-12-22 00:13:45,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 00:13:45,956 INFO L413 NwaCegarLoop]: 1545 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:45,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1545 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:45,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2023-12-22 00:13:46,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 816. [2023-12-22 00:13:46,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 814 states have (on average 1.898034398034398) internal successors, (1545), 815 states have internal predecessors, (1545), 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 00:13:46,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1545 transitions. [2023-12-22 00:13:46,028 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1545 transitions. Word has length 19 [2023-12-22 00:13:46,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:46,028 INFO L495 AbstractCegarLoop]: Abstraction has 816 states and 1545 transitions. [2023-12-22 00:13:46,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 00:13:46,028 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1545 transitions. [2023-12-22 00:13:46,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-22 00:13:46,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:46,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:46,040 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-22 00:13:46,233 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 00:13:46,234 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:46,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:46,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1684412933, now seen corresponding path program 1 times [2023-12-22 00:13:46,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:46,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273115911] [2023-12-22 00:13:46,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:46,236 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 00:13:46,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:46,237 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 00:13:46,238 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 00:13:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:46,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 00:13:46,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:46,357 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 00:13:46,357 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:46,358 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:46,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273115911] [2023-12-22 00:13:46,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273115911] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:46,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:46,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 00:13:46,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557578259] [2023-12-22 00:13:46,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:46,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 00:13:46,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:46,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 00:13:46,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:13:46,365 INFO L87 Difference]: Start difference. First operand 816 states and 1545 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 00:13:46,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:46,456 INFO L93 Difference]: Finished difference Result 889 states and 1660 transitions. [2023-12-22 00:13:46,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 00:13:46,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2023-12-22 00:13:46,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:46,461 INFO L225 Difference]: With dead ends: 889 [2023-12-22 00:13:46,461 INFO L226 Difference]: Without dead ends: 851 [2023-12-22 00:13:46,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:13:46,462 INFO L413 NwaCegarLoop]: 1540 mSDtfsCounter, 55 mSDsluCounter, 3052 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4592 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:46,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4592 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:13:46,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2023-12-22 00:13:46,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 816. [2023-12-22 00:13:46,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 814 states have (on average 1.8697788697788698) internal successors, (1522), 815 states have internal predecessors, (1522), 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 00:13:46,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1522 transitions. [2023-12-22 00:13:46,477 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1522 transitions. Word has length 19 [2023-12-22 00:13:46,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:46,477 INFO L495 AbstractCegarLoop]: Abstraction has 816 states and 1522 transitions. [2023-12-22 00:13:46,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 00:13:46,477 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1522 transitions. [2023-12-22 00:13:46,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-22 00:13:46,478 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:46,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:46,483 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 00:13:46,681 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 00:13:46,682 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:46,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:46,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1796642934, now seen corresponding path program 1 times [2023-12-22 00:13:46,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:46,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130513822] [2023-12-22 00:13:46,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:46,683 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:46,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:46,684 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 00:13:46,691 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 00:13:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:46,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:13:46,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:47,128 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 00:13:47,128 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:47,128 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:47,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130513822] [2023-12-22 00:13:47,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130513822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:47,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:47,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:13:47,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678506247] [2023-12-22 00:13:47,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:47,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:13:47,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:47,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:13:47,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:13:47,130 INFO L87 Difference]: Start difference. First operand 816 states and 1522 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:47,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:47,332 INFO L93 Difference]: Finished difference Result 991 states and 1802 transitions. [2023-12-22 00:13:47,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:13:47,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2023-12-22 00:13:47,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:47,337 INFO L225 Difference]: With dead ends: 991 [2023-12-22 00:13:47,337 INFO L226 Difference]: Without dead ends: 956 [2023-12-22 00:13:47,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:13:47,338 INFO L413 NwaCegarLoop]: 1516 mSDtfsCounter, 3167 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3167 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:47,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3167 Valid, 1771 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 00:13:47,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2023-12-22 00:13:47,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 882. [2023-12-22 00:13:47,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 880 states have (on average 1.8511363636363636) internal successors, (1629), 881 states have internal predecessors, (1629), 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 00:13:47,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1629 transitions. [2023-12-22 00:13:47,355 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1629 transitions. Word has length 41 [2023-12-22 00:13:47,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:47,355 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 1629 transitions. [2023-12-22 00:13:47,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:47,356 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1629 transitions. [2023-12-22 00:13:47,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-22 00:13:47,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:47,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:47,362 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-22 00:13:47,560 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 00:13:47,560 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:47,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:47,561 INFO L85 PathProgramCache]: Analyzing trace with hash -125681594, now seen corresponding path program 1 times [2023-12-22 00:13:47,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:47,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454421218] [2023-12-22 00:13:47,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:47,562 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 00:13:47,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:47,563 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 00:13:47,588 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 00:13:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:47,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:13:47,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:47,689 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 00:13:47,689 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:47,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:47,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454421218] [2023-12-22 00:13:47,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454421218] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:47,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:47,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:13:47,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197250127] [2023-12-22 00:13:47,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:47,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:13:47,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:47,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:13:47,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:47,691 INFO L87 Difference]: Start difference. First operand 882 states and 1629 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 00:13:47,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:47,727 INFO L93 Difference]: Finished difference Result 1068 states and 1927 transitions. [2023-12-22 00:13:47,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:13:47,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2023-12-22 00:13:47,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:47,731 INFO L225 Difference]: With dead ends: 1068 [2023-12-22 00:13:47,731 INFO L226 Difference]: Without dead ends: 967 [2023-12-22 00:13:47,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 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 00:13:47,732 INFO L413 NwaCegarLoop]: 1518 mSDtfsCounter, 1472 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:47,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 1568 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:47,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2023-12-22 00:13:47,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 965. [2023-12-22 00:13:47,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 963 states have (on average 1.8255451713395638) internal successors, (1758), 964 states have internal predecessors, (1758), 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 00:13:47,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1758 transitions. [2023-12-22 00:13:47,749 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1758 transitions. Word has length 43 [2023-12-22 00:13:47,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:47,749 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1758 transitions. [2023-12-22 00:13:47,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 00:13:47,749 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1758 transitions. [2023-12-22 00:13:47,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-22 00:13:47,750 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:47,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:47,756 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 00:13:47,953 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 00:13:47,953 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:47,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:47,954 INFO L85 PathProgramCache]: Analyzing trace with hash 336976631, now seen corresponding path program 1 times [2023-12-22 00:13:47,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:47,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120999060] [2023-12-22 00:13:47,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:47,954 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 00:13:47,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:47,956 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 00:13:47,967 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 00:13:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:48,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:13:48,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:48,032 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 00:13:48,032 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:48,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:48,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120999060] [2023-12-22 00:13:48,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120999060] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:48,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:48,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 00:13:48,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818477807] [2023-12-22 00:13:48,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:48,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 00:13:48,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:48,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 00:13:48,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:13:48,034 INFO L87 Difference]: Start difference. First operand 965 states and 1758 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 00:13:48,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:48,084 INFO L93 Difference]: Finished difference Result 979 states and 1775 transitions. [2023-12-22 00:13:48,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 00:13:48,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 44 [2023-12-22 00:13:48,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:48,088 INFO L225 Difference]: With dead ends: 979 [2023-12-22 00:13:48,089 INFO L226 Difference]: Without dead ends: 977 [2023-12-22 00:13:48,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:13:48,090 INFO L413 NwaCegarLoop]: 1518 mSDtfsCounter, 1 mSDsluCounter, 3028 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4546 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:48,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4546 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:48,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2023-12-22 00:13:48,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 973. [2023-12-22 00:13:48,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 971 states have (on average 1.8177136972193615) internal successors, (1765), 972 states have internal predecessors, (1765), 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 00:13:48,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1765 transitions. [2023-12-22 00:13:48,108 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1765 transitions. Word has length 44 [2023-12-22 00:13:48,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:48,108 INFO L495 AbstractCegarLoop]: Abstraction has 973 states and 1765 transitions. [2023-12-22 00:13:48,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 00:13:48,109 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1765 transitions. [2023-12-22 00:13:48,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-22 00:13:48,109 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:48,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:48,115 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 00:13:48,313 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 00:13:48,313 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:48,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:48,314 INFO L85 PathProgramCache]: Analyzing trace with hash 514996542, now seen corresponding path program 1 times [2023-12-22 00:13:48,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:48,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783974890] [2023-12-22 00:13:48,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:48,314 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 00:13:48,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:48,315 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 00:13:48,316 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 00:13:48,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:48,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:13:48,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:48,438 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 00:13:48,439 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:48,439 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:48,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783974890] [2023-12-22 00:13:48,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1783974890] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:48,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:48,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:13:48,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410937094] [2023-12-22 00:13:48,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:48,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:13:48,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:48,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:13:48,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:48,440 INFO L87 Difference]: Start difference. First operand 973 states and 1765 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 00:13:48,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:48,470 INFO L93 Difference]: Finished difference Result 1177 states and 2085 transitions. [2023-12-22 00:13:48,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:13:48,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2023-12-22 00:13:48,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:48,474 INFO L225 Difference]: With dead ends: 1177 [2023-12-22 00:13:48,474 INFO L226 Difference]: Without dead ends: 1070 [2023-12-22 00:13:48,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 00:13:48,475 INFO L413 NwaCegarLoop]: 1559 mSDtfsCounter, 1484 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:48,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1615 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:48,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2023-12-22 00:13:48,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1068. [2023-12-22 00:13:48,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1066 states have (on average 1.7926829268292683) internal successors, (1911), 1067 states have internal predecessors, (1911), 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 00:13:48,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1911 transitions. [2023-12-22 00:13:48,494 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1911 transitions. Word has length 45 [2023-12-22 00:13:48,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:48,494 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1911 transitions. [2023-12-22 00:13:48,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 00:13:48,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1911 transitions. [2023-12-22 00:13:48,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-22 00:13:48,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:48,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:48,498 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 00:13:48,698 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 00:13:48,698 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:48,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:48,699 INFO L85 PathProgramCache]: Analyzing trace with hash -70715586, now seen corresponding path program 1 times [2023-12-22 00:13:48,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:48,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887677963] [2023-12-22 00:13:48,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:48,699 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 00:13:48,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:48,700 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 00:13:48,701 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 00:13:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:48,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:13:48,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:48,791 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 00:13:48,791 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:48,791 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:48,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887677963] [2023-12-22 00:13:48,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1887677963] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:48,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:48,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:13:48,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350665974] [2023-12-22 00:13:48,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:48,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:13:48,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:48,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:13:48,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:48,793 INFO L87 Difference]: Start difference. First operand 1068 states and 1911 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 00:13:48,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:48,824 INFO L93 Difference]: Finished difference Result 1602 states and 2734 transitions. [2023-12-22 00:13:48,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:13:48,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2023-12-22 00:13:48,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:48,828 INFO L225 Difference]: With dead ends: 1602 [2023-12-22 00:13:48,829 INFO L226 Difference]: Without dead ends: 1317 [2023-12-22 00:13:48,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 00:13:48,830 INFO L413 NwaCegarLoop]: 1551 mSDtfsCounter, 1480 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:48,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 1615 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:48,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2023-12-22 00:13:48,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1315. [2023-12-22 00:13:48,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 1313 states have (on average 1.7372429550647372) internal successors, (2281), 1314 states have internal predecessors, (2281), 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 00:13:48,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 2281 transitions. [2023-12-22 00:13:48,853 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 2281 transitions. Word has length 45 [2023-12-22 00:13:48,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:48,853 INFO L495 AbstractCegarLoop]: Abstraction has 1315 states and 2281 transitions. [2023-12-22 00:13:48,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 00:13:48,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 2281 transitions. [2023-12-22 00:13:48,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-22 00:13:48,854 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:48,854 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:48,874 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 00:13:49,058 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 00:13:49,058 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:49,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:49,059 INFO L85 PathProgramCache]: Analyzing trace with hash 818017854, now seen corresponding path program 1 times [2023-12-22 00:13:49,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:49,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665129406] [2023-12-22 00:13:49,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:49,059 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 00:13:49,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:49,060 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 00:13:49,089 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 00:13:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:49,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:13:49,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:49,152 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 00:13:49,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:49,153 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:49,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665129406] [2023-12-22 00:13:49,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665129406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:49,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:49,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:13:49,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029882857] [2023-12-22 00:13:49,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:49,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:13:49,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:49,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:13:49,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:49,154 INFO L87 Difference]: Start difference. First operand 1315 states and 2281 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 00:13:49,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:49,190 INFO L93 Difference]: Finished difference Result 2307 states and 3781 transitions. [2023-12-22 00:13:49,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:13:49,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2023-12-22 00:13:49,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:49,195 INFO L225 Difference]: With dead ends: 2307 [2023-12-22 00:13:49,196 INFO L226 Difference]: Without dead ends: 1775 [2023-12-22 00:13:49,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 00:13:49,197 INFO L413 NwaCegarLoop]: 1549 mSDtfsCounter, 1478 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:49,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1478 Valid, 1617 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:49,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2023-12-22 00:13:49,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1773. [2023-12-22 00:13:49,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 1771 states have (on average 1.6651609260304912) internal successors, (2949), 1772 states have internal predecessors, (2949), 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 00:13:49,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2949 transitions. [2023-12-22 00:13:49,226 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2949 transitions. Word has length 45 [2023-12-22 00:13:49,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:49,226 INFO L495 AbstractCegarLoop]: Abstraction has 1773 states and 2949 transitions. [2023-12-22 00:13:49,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 00:13:49,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2949 transitions. [2023-12-22 00:13:49,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-22 00:13:49,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:49,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:49,232 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 00:13:49,430 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 00:13:49,430 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:49,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:49,430 INFO L85 PathProgramCache]: Analyzing trace with hash 554940478, now seen corresponding path program 1 times [2023-12-22 00:13:49,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:49,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17127982] [2023-12-22 00:13:49,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:49,431 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 00:13:49,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:49,432 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 00:13:49,461 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 00:13:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:49,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:13:49,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:49,532 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 00:13:49,533 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:49,533 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:49,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17127982] [2023-12-22 00:13:49,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17127982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:49,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:49,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:13:49,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637525468] [2023-12-22 00:13:49,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:49,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:13:49,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:49,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:13:49,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:49,534 INFO L87 Difference]: Start difference. First operand 1773 states and 2949 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 00:13:49,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:49,589 INFO L93 Difference]: Finished difference Result 3609 states and 5659 transitions. [2023-12-22 00:13:49,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:13:49,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2023-12-22 00:13:49,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:49,597 INFO L225 Difference]: With dead ends: 3609 [2023-12-22 00:13:49,598 INFO L226 Difference]: Without dead ends: 2619 [2023-12-22 00:13:49,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 00:13:49,601 INFO L413 NwaCegarLoop]: 1561 mSDtfsCounter, 1482 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:49,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1621 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:49,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2023-12-22 00:13:49,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 2617. [2023-12-22 00:13:49,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2617 states, 2615 states have (on average 1.5835564053537285) internal successors, (4141), 2616 states have internal predecessors, (4141), 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 00:13:49,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2617 states to 2617 states and 4141 transitions. [2023-12-22 00:13:49,653 INFO L78 Accepts]: Start accepts. Automaton has 2617 states and 4141 transitions. Word has length 45 [2023-12-22 00:13:49,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:49,654 INFO L495 AbstractCegarLoop]: Abstraction has 2617 states and 4141 transitions. [2023-12-22 00:13:49,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 00:13:49,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states and 4141 transitions. [2023-12-22 00:13:49,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-22 00:13:49,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:49,655 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 00:13:49,663 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 00:13:49,858 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 00:13:49,858 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:49,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:49,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1873610167, now seen corresponding path program 1 times [2023-12-22 00:13:49,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:49,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863935757] [2023-12-22 00:13:49,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:49,859 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 00:13:49,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:49,860 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 00:13:49,864 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 00:13:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:49,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:13:49,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:50,693 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:50,693 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:13:51,059 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:51,059 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:51,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863935757] [2023-12-22 00:13:51,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863935757] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:13:51,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:13:51,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:13:51,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733591029] [2023-12-22 00:13:51,060 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:13:51,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:13:51,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:51,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:13:51,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:13:51,061 INFO L87 Difference]: Start difference. First operand 2617 states and 4141 transitions. Second operand has 16 states, 16 states have (on average 6.875) internal successors, (110), 16 states have internal predecessors, (110), 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 00:13:52,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:52,928 INFO L93 Difference]: Finished difference Result 6667 states and 9962 transitions. [2023-12-22 00:13:52,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 00:13:52,929 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.875) internal successors, (110), 16 states have internal predecessors, (110), 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 61 [2023-12-22 00:13:52,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:52,944 INFO L225 Difference]: With dead ends: 6667 [2023-12-22 00:13:52,945 INFO L226 Difference]: Without dead ends: 5369 [2023-12-22 00:13:52,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-22 00:13:52,951 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 2078 mSDsluCounter, 12210 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2078 SdHoareTripleChecker+Valid, 13731 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:52,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2078 Valid, 13731 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 00:13:52,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5369 states. [2023-12-22 00:13:53,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5369 to 4449. [2023-12-22 00:13:53,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4449 states, 4447 states have (on average 1.526647177872723) internal successors, (6789), 4448 states have internal predecessors, (6789), 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 00:13:53,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4449 states to 4449 states and 6789 transitions. [2023-12-22 00:13:53,051 INFO L78 Accepts]: Start accepts. Automaton has 4449 states and 6789 transitions. Word has length 61 [2023-12-22 00:13:53,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:53,052 INFO L495 AbstractCegarLoop]: Abstraction has 4449 states and 6789 transitions. [2023-12-22 00:13:53,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.875) internal successors, (110), 16 states have internal predecessors, (110), 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 00:13:53,052 INFO L276 IsEmpty]: Start isEmpty. Operand 4449 states and 6789 transitions. [2023-12-22 00:13:53,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-22 00:13:53,056 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:53,056 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 00:13:53,075 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 (11)] Ended with exit code 0 [2023-12-22 00:13:53,278 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 00:13:53,278 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:53,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:53,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1287898039, now seen corresponding path program 1 times [2023-12-22 00:13:53,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:53,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1699341121] [2023-12-22 00:13:53,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:53,279 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 00:13:53,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:53,281 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 00:13:53,310 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 00:13:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:53,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:13:53,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:53,379 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:53,380 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:53,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:53,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1699341121] [2023-12-22 00:13:53,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1699341121] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:53,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:53,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:13:53,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586124319] [2023-12-22 00:13:53,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:53,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:13:53,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:53,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:13:53,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:53,382 INFO L87 Difference]: Start difference. First operand 4449 states and 6789 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 00:13:53,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:53,464 INFO L93 Difference]: Finished difference Result 7061 states and 10624 transitions. [2023-12-22 00:13:53,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:13:53,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2023-12-22 00:13:53,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:53,475 INFO L225 Difference]: With dead ends: 7061 [2023-12-22 00:13:53,475 INFO L226 Difference]: Without dead ends: 3395 [2023-12-22 00:13:53,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 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 00:13:53,480 INFO L413 NwaCegarLoop]: 1551 mSDtfsCounter, 39 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3059 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:53,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3059 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:53,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3395 states. [2023-12-22 00:13:53,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3395 to 3388. [2023-12-22 00:13:53,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3388 states, 3386 states have (on average 1.5499113998818665) internal successors, (5248), 3387 states have internal predecessors, (5248), 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 00:13:53,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 5248 transitions. [2023-12-22 00:13:53,557 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 5248 transitions. Word has length 61 [2023-12-22 00:13:53,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:53,557 INFO L495 AbstractCegarLoop]: Abstraction has 3388 states and 5248 transitions. [2023-12-22 00:13:53,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 00:13:53,558 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 5248 transitions. [2023-12-22 00:13:53,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-22 00:13:53,558 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:53,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:53,566 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 00:13:53,762 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 00:13:53,762 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:53,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:53,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1794718171, now seen corresponding path program 1 times [2023-12-22 00:13:53,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:53,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678526417] [2023-12-22 00:13:53,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:53,764 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 00:13:53,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:53,765 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 00:13:53,770 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 00:13:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:53,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:13:53,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:53,913 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 00:13:53,914 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:53,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:53,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1678526417] [2023-12-22 00:13:53,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1678526417] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:53,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:53,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:13:53,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866670920] [2023-12-22 00:13:53,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:53,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:13:53,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:53,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:13:53,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:53,915 INFO L87 Difference]: Start difference. First operand 3388 states and 5248 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 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 00:14:33,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:33,458 INFO L93 Difference]: Finished difference Result 4892 states and 8121 transitions. [2023-12-22 00:14:33,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:14:33,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 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 62 [2023-12-22 00:14:33,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:33,470 INFO L225 Difference]: With dead ends: 4892 [2023-12-22 00:14:33,470 INFO L226 Difference]: Without dead ends: 4139 [2023-12-22 00:14:33,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 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 00:14:33,473 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 800 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 2979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:33,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 304 Invalid, 2979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 39.4s Time] [2023-12-22 00:14:33,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4139 states. [2023-12-22 00:14:33,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4139 to 4139. [2023-12-22 00:14:33,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4139 states, 4137 states have (on average 1.566110708242688) internal successors, (6479), 4138 states have internal predecessors, (6479), 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 00:14:33,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 6479 transitions. [2023-12-22 00:14:33,558 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 6479 transitions. Word has length 62 [2023-12-22 00:14:33,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:33,558 INFO L495 AbstractCegarLoop]: Abstraction has 4139 states and 6479 transitions. [2023-12-22 00:14:33,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 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 00:14:33,558 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 6479 transitions. [2023-12-22 00:14:33,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-22 00:14:33,559 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:33,559 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 00:14:33,578 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 (13)] Ended with exit code 0 [2023-12-22 00:14:33,779 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 00:14:33,779 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:33,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:33,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1021268555, now seen corresponding path program 1 times [2023-12-22 00:14:33,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:33,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666707545] [2023-12-22 00:14:33,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:33,780 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 00:14:33,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:33,781 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 00:14:33,786 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 00:14:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:33,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:14:33,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:33,906 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:33,907 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:14:33,907 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:33,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666707545] [2023-12-22 00:14:33,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666707545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:14:33,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:14:33,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:14:33,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833057688] [2023-12-22 00:14:33,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:14:33,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:14:33,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:33,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:14:33,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:14:33,908 INFO L87 Difference]: Start difference. First operand 4139 states and 6479 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 00:14:33,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:33,954 INFO L93 Difference]: Finished difference Result 5439 states and 8365 transitions. [2023-12-22 00:14:33,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:14:33,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2023-12-22 00:14:33,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:33,961 INFO L225 Difference]: With dead ends: 5439 [2023-12-22 00:14:33,961 INFO L226 Difference]: Without dead ends: 2845 [2023-12-22 00:14:33,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 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 00:14:33,965 INFO L413 NwaCegarLoop]: 1544 mSDtfsCounter, 35 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:33,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3044 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:14:33,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2845 states. [2023-12-22 00:14:34,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2845 to 2843. [2023-12-22 00:14:34,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2843 states, 2841 states have (on average 1.608940513903555) internal successors, (4571), 2842 states have internal predecessors, (4571), 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 00:14:34,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2843 states to 2843 states and 4571 transitions. [2023-12-22 00:14:34,021 INFO L78 Accepts]: Start accepts. Automaton has 2843 states and 4571 transitions. Word has length 63 [2023-12-22 00:14:34,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:34,021 INFO L495 AbstractCegarLoop]: Abstraction has 2843 states and 4571 transitions. [2023-12-22 00:14:34,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 00:14:34,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2843 states and 4571 transitions. [2023-12-22 00:14:34,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-22 00:14:34,023 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:34,024 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 00:14:34,027 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 00:14:34,227 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 00:14:34,227 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:34,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:34,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1889921451, now seen corresponding path program 1 times [2023-12-22 00:14:34,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:34,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000609561] [2023-12-22 00:14:34,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:34,228 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 00:14:34,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:34,230 INFO L229 MonitoredProcess]: Starting monitored process 15 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 00:14:34,230 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 (15)] Waiting until timeout for monitored process [2023-12-22 00:14:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:34,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:14:34,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:34,944 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:34,944 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:14:35,228 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:35,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:35,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000609561] [2023-12-22 00:14:35,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000609561] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:14:35,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:14:35,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:14:35,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454643339] [2023-12-22 00:14:35,229 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:14:35,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:14:35,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:35,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:14:35,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:14:35,230 INFO L87 Difference]: Start difference. First operand 2843 states and 4571 transitions. Second operand has 16 states, 16 states have (on average 7.375) internal successors, (118), 16 states have internal predecessors, (118), 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 00:14:36,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:36,441 INFO L93 Difference]: Finished difference Result 6475 states and 9711 transitions. [2023-12-22 00:14:36,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 00:14:36,442 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.375) internal successors, (118), 16 states have internal predecessors, (118), 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 64 [2023-12-22 00:14:36,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:36,450 INFO L225 Difference]: With dead ends: 6475 [2023-12-22 00:14:36,450 INFO L226 Difference]: Without dead ends: 5177 [2023-12-22 00:14:36,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 00:14:36,454 INFO L413 NwaCegarLoop]: 1557 mSDtfsCounter, 6339 mSDsluCounter, 12152 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6339 SdHoareTripleChecker+Valid, 13709 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:36,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6339 Valid, 13709 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 00:14:36,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5177 states. [2023-12-22 00:14:36,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5177 to 4283. [2023-12-22 00:14:36,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4283 states, 4281 states have (on average 1.5302499416024293) internal successors, (6551), 4282 states have internal predecessors, (6551), 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 00:14:36,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4283 states to 4283 states and 6551 transitions. [2023-12-22 00:14:36,539 INFO L78 Accepts]: Start accepts. Automaton has 4283 states and 6551 transitions. Word has length 64 [2023-12-22 00:14:36,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:36,540 INFO L495 AbstractCegarLoop]: Abstraction has 4283 states and 6551 transitions. [2023-12-22 00:14:36,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.375) internal successors, (118), 16 states have internal predecessors, (118), 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 00:14:36,540 INFO L276 IsEmpty]: Start isEmpty. Operand 4283 states and 6551 transitions. [2023-12-22 00:14:36,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 00:14:36,540 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:36,541 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 00:14:36,546 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 (15)] Forceful destruction successful, exit code 0 [2023-12-22 00:14:36,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /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 00:14:36,744 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:36,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:36,744 INFO L85 PathProgramCache]: Analyzing trace with hash 729103499, now seen corresponding path program 1 times [2023-12-22 00:14:36,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:36,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301580408] [2023-12-22 00:14:36,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:36,745 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 00:14:36,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:36,746 INFO L229 MonitoredProcess]: Starting monitored process 16 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 00:14:36,746 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 (16)] Waiting until timeout for monitored process [2023-12-22 00:14:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:36,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:14:36,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:36,852 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:36,853 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:14:36,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:36,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301580408] [2023-12-22 00:14:36,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301580408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:14:36,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:14:36,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:14:36,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726260414] [2023-12-22 00:14:36,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:14:36,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:14:36,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:36,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:14:36,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:14:36,854 INFO L87 Difference]: Start difference. First operand 4283 states and 6551 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 00:14:36,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:36,905 INFO L93 Difference]: Finished difference Result 5655 states and 8473 transitions. [2023-12-22 00:14:36,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:14:36,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2023-12-22 00:14:36,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:36,911 INFO L225 Difference]: With dead ends: 5655 [2023-12-22 00:14:36,911 INFO L226 Difference]: Without dead ends: 2917 [2023-12-22 00:14:36,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 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 00:14:36,914 INFO L413 NwaCegarLoop]: 1537 mSDtfsCounter, 31 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3029 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:36,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3029 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:14:36,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2023-12-22 00:14:37,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 2915. [2023-12-22 00:14:37,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2913 states have (on average 1.581531067627875) internal successors, (4607), 2914 states have internal predecessors, (4607), 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 00:14:37,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4607 transitions. [2023-12-22 00:14:37,010 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4607 transitions. Word has length 66 [2023-12-22 00:14:37,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:37,010 INFO L495 AbstractCegarLoop]: Abstraction has 2915 states and 4607 transitions. [2023-12-22 00:14:37,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 00:14:37,010 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4607 transitions. [2023-12-22 00:14:37,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-22 00:14:37,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:37,011 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 00:14:37,017 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 (16)] Forceful destruction successful, exit code 0 [2023-12-22 00:14:37,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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 00:14:37,214 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:37,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:37,215 INFO L85 PathProgramCache]: Analyzing trace with hash 797083243, now seen corresponding path program 1 times [2023-12-22 00:14:37,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:37,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213352066] [2023-12-22 00:14:37,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:37,216 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 00:14:37,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:37,217 INFO L229 MonitoredProcess]: Starting monitored process 17 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 00:14:37,221 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 (17)] Waiting until timeout for monitored process [2023-12-22 00:14:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:37,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:14:37,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:37,945 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:37,945 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:14:38,258 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:38,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:38,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213352066] [2023-12-22 00:14:38,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1213352066] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:14:38,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:14:38,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:14:38,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881978201] [2023-12-22 00:14:38,259 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:14:38,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:14:38,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:38,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:14:38,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:14:38,260 INFO L87 Difference]: Start difference. First operand 2915 states and 4607 transitions. Second operand has 16 states, 16 states have (on average 7.875) internal successors, (126), 16 states have internal predecessors, (126), 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 00:14:39,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:39,345 INFO L93 Difference]: Finished difference Result 6547 states and 9579 transitions. [2023-12-22 00:14:39,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 00:14:39,345 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.875) internal successors, (126), 16 states have internal predecessors, (126), 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 67 [2023-12-22 00:14:39,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:39,353 INFO L225 Difference]: With dead ends: 6547 [2023-12-22 00:14:39,353 INFO L226 Difference]: Without dead ends: 5177 [2023-12-22 00:14:39,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 00:14:39,355 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 4812 mSDsluCounter, 9099 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4812 SdHoareTripleChecker+Valid, 10638 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:39,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4812 Valid, 10638 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 00:14:39,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5177 states. [2023-12-22 00:14:39,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5177 to 4427. [2023-12-22 00:14:39,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4427 states, 4425 states have (on average 1.496723163841808) internal successors, (6623), 4426 states have internal predecessors, (6623), 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 00:14:39,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4427 states to 4427 states and 6623 transitions. [2023-12-22 00:14:39,451 INFO L78 Accepts]: Start accepts. Automaton has 4427 states and 6623 transitions. Word has length 67 [2023-12-22 00:14:39,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:39,451 INFO L495 AbstractCegarLoop]: Abstraction has 4427 states and 6623 transitions. [2023-12-22 00:14:39,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.875) internal successors, (126), 16 states have internal predecessors, (126), 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 00:14:39,451 INFO L276 IsEmpty]: Start isEmpty. Operand 4427 states and 6623 transitions. [2023-12-22 00:14:39,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-22 00:14:39,452 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:39,452 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 00:14:39,458 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 (17)] Forceful destruction successful, exit code 0 [2023-12-22 00:14:39,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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 00:14:39,656 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:39,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:39,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1211121559, now seen corresponding path program 1 times [2023-12-22 00:14:39,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:39,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139357959] [2023-12-22 00:14:39,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:39,657 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 00:14:39,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:39,658 INFO L229 MonitoredProcess]: Starting monitored process 18 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 00:14:39,659 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 (18)] Waiting until timeout for monitored process [2023-12-22 00:14:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:39,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:14:39,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:39,764 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:39,764 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:14:39,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:39,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139357959] [2023-12-22 00:14:39,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139357959] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:14:39,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:14:39,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:14:39,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969464327] [2023-12-22 00:14:39,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:14:39,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:14:39,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:39,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:14:39,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:14:39,766 INFO L87 Difference]: Start difference. First operand 4427 states and 6623 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 00:14:39,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:39,821 INFO L93 Difference]: Finished difference Result 5805 states and 8482 transitions. [2023-12-22 00:14:39,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:14:39,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2023-12-22 00:14:39,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:39,826 INFO L225 Difference]: With dead ends: 5805 [2023-12-22 00:14:39,827 INFO L226 Difference]: Without dead ends: 2923 [2023-12-22 00:14:39,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 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 00:14:39,830 INFO L413 NwaCegarLoop]: 1530 mSDtfsCounter, 27 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 3014 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:39,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 3014 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:14:39,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2023-12-22 00:14:39,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 2921. [2023-12-22 00:14:39,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2921 states, 2919 states have (on average 1.5570400822199384) internal successors, (4545), 2920 states have internal predecessors, (4545), 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 00:14:39,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 4545 transitions. [2023-12-22 00:14:39,925 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 4545 transitions. Word has length 69 [2023-12-22 00:14:39,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:39,925 INFO L495 AbstractCegarLoop]: Abstraction has 2921 states and 4545 transitions. [2023-12-22 00:14:39,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 00:14:39,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 4545 transitions. [2023-12-22 00:14:39,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-22 00:14:39,927 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:39,927 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 00:14:39,931 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 (18)] Forceful destruction successful, exit code 0 [2023-12-22 00:14:40,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 00:14:40,131 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:40,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:40,132 INFO L85 PathProgramCache]: Analyzing trace with hash -551492641, now seen corresponding path program 1 times [2023-12-22 00:14:40,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:40,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562083670] [2023-12-22 00:14:40,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:40,132 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 00:14:40,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:40,133 INFO L229 MonitoredProcess]: Starting monitored process 19 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 00:14:40,137 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 (19)] Waiting until timeout for monitored process [2023-12-22 00:14:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:40,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:14:40,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:40,935 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:40,935 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:14:41,291 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:41,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:41,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562083670] [2023-12-22 00:14:41,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562083670] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:14:41,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:14:41,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:14:41,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541815002] [2023-12-22 00:14:41,292 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:14:41,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:14:41,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:41,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:14:41,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:14:41,293 INFO L87 Difference]: Start difference. First operand 2921 states and 4545 transitions. Second operand has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 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 00:14:42,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:42,349 INFO L93 Difference]: Finished difference Result 5531 states and 7976 transitions. [2023-12-22 00:14:42,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 00:14:42,350 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 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 70 [2023-12-22 00:14:42,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:42,355 INFO L225 Difference]: With dead ends: 5531 [2023-12-22 00:14:42,355 INFO L226 Difference]: Without dead ends: 4155 [2023-12-22 00:14:42,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-22 00:14:42,358 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 4849 mSDsluCounter, 9044 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4849 SdHoareTripleChecker+Valid, 10565 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:42,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4849 Valid, 10565 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 00:14:42,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2023-12-22 00:14:42,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 3905. [2023-12-22 00:14:42,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3905 states, 3903 states have (on average 1.485523955931335) internal successors, (5798), 3904 states have internal predecessors, (5798), 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 00:14:42,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3905 states to 3905 states and 5798 transitions. [2023-12-22 00:14:42,483 INFO L78 Accepts]: Start accepts. Automaton has 3905 states and 5798 transitions. Word has length 70 [2023-12-22 00:14:42,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:42,484 INFO L495 AbstractCegarLoop]: Abstraction has 3905 states and 5798 transitions. [2023-12-22 00:14:42,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 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 00:14:42,484 INFO L276 IsEmpty]: Start isEmpty. Operand 3905 states and 5798 transitions. [2023-12-22 00:14:42,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-22 00:14:42,485 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:42,485 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 00:14:42,491 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 (19)] Forceful destruction successful, exit code 0 [2023-12-22 00:14:42,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 00:14:42,688 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:42,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:42,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1682491735, now seen corresponding path program 1 times [2023-12-22 00:14:42,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:42,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314453238] [2023-12-22 00:14:42,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:42,689 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 00:14:42,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:42,690 INFO L229 MonitoredProcess]: Starting monitored process 20 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 00:14:42,693 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 (20)] Waiting until timeout for monitored process [2023-12-22 00:14:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:42,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 00:14:42,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:42,872 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 00:14:42,872 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:14:42,994 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 00:14:42,994 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:42,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314453238] [2023-12-22 00:14:42,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314453238] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:14:42,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:14:42,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 00:14:42,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071315234] [2023-12-22 00:14:42,995 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:14:42,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:14:42,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:42,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:14:42,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:14:42,995 INFO L87 Difference]: Start difference. First operand 3905 states and 5798 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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 00:14:43,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:43,253 INFO L93 Difference]: Finished difference Result 10665 states and 14454 transitions. [2023-12-22 00:14:43,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:14:43,253 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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 72 [2023-12-22 00:14:43,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:43,262 INFO L225 Difference]: With dead ends: 10665 [2023-12-22 00:14:43,262 INFO L226 Difference]: Without dead ends: 8305 [2023-12-22 00:14:43,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:14:43,266 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 4457 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4457 SdHoareTripleChecker+Valid, 3185 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:43,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4457 Valid, 3185 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:14:43,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8305 states. [2023-12-22 00:14:43,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8305 to 8099. [2023-12-22 00:14:43,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8099 states, 8097 states have (on average 1.3343213535877485) internal successors, (10804), 8098 states have internal predecessors, (10804), 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 00:14:43,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8099 states to 8099 states and 10804 transitions. [2023-12-22 00:14:43,503 INFO L78 Accepts]: Start accepts. Automaton has 8099 states and 10804 transitions. Word has length 72 [2023-12-22 00:14:43,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:43,504 INFO L495 AbstractCegarLoop]: Abstraction has 8099 states and 10804 transitions. [2023-12-22 00:14:43,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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 00:14:43,504 INFO L276 IsEmpty]: Start isEmpty. Operand 8099 states and 10804 transitions. [2023-12-22 00:14:43,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-22 00:14:43,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:43,506 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:14:43,512 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 (20)] Forceful destruction successful, exit code 0 [2023-12-22 00:14:43,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 00:14:43,710 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:43,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:43,710 INFO L85 PathProgramCache]: Analyzing trace with hash 2132627879, now seen corresponding path program 1 times [2023-12-22 00:14:43,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:43,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289237797] [2023-12-22 00:14:43,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:43,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:43,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:43,711 INFO L229 MonitoredProcess]: Starting monitored process 21 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 00:14:43,712 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 (21)] Waiting until timeout for monitored process [2023-12-22 00:14:43,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:43,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:14:43,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:44,846 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 38 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:44,846 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:14:45,333 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 38 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:45,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:45,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289237797] [2023-12-22 00:14:45,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289237797] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:14:45,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:14:45,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:14:45,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127357561] [2023-12-22 00:14:45,334 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:14:45,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:14:45,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:45,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:14:45,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:14:45,336 INFO L87 Difference]: Start difference. First operand 8099 states and 10804 transitions. Second operand has 26 states, 26 states have (on average 7.769230769230769) internal successors, (202), 25 states have internal predecessors, (202), 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 00:14:47,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:47,141 INFO L93 Difference]: Finished difference Result 12487 states and 16291 transitions. [2023-12-22 00:14:47,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 00:14:47,141 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 7.769230769230769) internal successors, (202), 25 states have internal predecessors, (202), 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 111 [2023-12-22 00:14:47,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:47,150 INFO L225 Difference]: With dead ends: 12487 [2023-12-22 00:14:47,150 INFO L226 Difference]: Without dead ends: 8205 [2023-12-22 00:14:47,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=383, Invalid=1423, Unknown=0, NotChecked=0, Total=1806 [2023-12-22 00:14:47,156 INFO L413 NwaCegarLoop]: 1508 mSDtfsCounter, 16435 mSDsluCounter, 7762 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16435 SdHoareTripleChecker+Valid, 9270 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:47,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16435 Valid, 9270 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 00:14:47,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8205 states. [2023-12-22 00:14:47,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8205 to 8099. [2023-12-22 00:14:47,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8099 states, 8097 states have (on average 1.3208595776213412) internal successors, (10695), 8098 states have internal predecessors, (10695), 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 00:14:47,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8099 states to 8099 states and 10695 transitions. [2023-12-22 00:14:47,422 INFO L78 Accepts]: Start accepts. Automaton has 8099 states and 10695 transitions. Word has length 111 [2023-12-22 00:14:47,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:47,422 INFO L495 AbstractCegarLoop]: Abstraction has 8099 states and 10695 transitions. [2023-12-22 00:14:47,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.769230769230769) internal successors, (202), 25 states have internal predecessors, (202), 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 00:14:47,422 INFO L276 IsEmpty]: Start isEmpty. Operand 8099 states and 10695 transitions. [2023-12-22 00:14:47,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-22 00:14:47,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:47,428 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:14:47,436 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 (21)] Forceful destruction successful, exit code 0 [2023-12-22 00:14:47,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 00:14:47,632 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:47,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:47,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1973878027, now seen corresponding path program 1 times [2023-12-22 00:14:47,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:47,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391776487] [2023-12-22 00:14:47,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:47,633 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 00:14:47,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:47,634 INFO L229 MonitoredProcess]: Starting monitored process 22 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 00:14:47,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-22 00:14:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:47,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:14:47,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:48,821 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 30 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:48,821 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:14:49,414 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 30 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:49,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:49,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [391776487] [2023-12-22 00:14:49,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [391776487] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:14:49,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:14:49,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:14:49,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129295816] [2023-12-22 00:14:49,415 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:14:49,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:14:49,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:49,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:14:49,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:14:49,416 INFO L87 Difference]: Start difference. First operand 8099 states and 10695 transitions. Second operand has 26 states, 26 states have (on average 8.0) internal successors, (208), 25 states have internal predecessors, (208), 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 00:14:51,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:51,433 INFO L93 Difference]: Finished difference Result 11771 states and 15258 transitions. [2023-12-22 00:14:51,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 00:14:51,433 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.0) internal successors, (208), 25 states have internal predecessors, (208), 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 112 [2023-12-22 00:14:51,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:51,442 INFO L225 Difference]: With dead ends: 11771 [2023-12-22 00:14:51,442 INFO L226 Difference]: Without dead ends: 8989 [2023-12-22 00:14:51,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=417, Invalid=1563, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 00:14:51,446 INFO L413 NwaCegarLoop]: 1508 mSDtfsCounter, 14982 mSDsluCounter, 7854 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14982 SdHoareTripleChecker+Valid, 9362 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:51,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14982 Valid, 9362 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 00:14:51,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8989 states. [2023-12-22 00:14:51,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8989 to 8099. [2023-12-22 00:14:51,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8099 states, 8097 states have (on average 1.3144374459676422) internal successors, (10643), 8098 states have internal predecessors, (10643), 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 00:14:51,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8099 states to 8099 states and 10643 transitions. [2023-12-22 00:14:51,782 INFO L78 Accepts]: Start accepts. Automaton has 8099 states and 10643 transitions. Word has length 112 [2023-12-22 00:14:51,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:51,783 INFO L495 AbstractCegarLoop]: Abstraction has 8099 states and 10643 transitions. [2023-12-22 00:14:51,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.0) internal successors, (208), 25 states have internal predecessors, (208), 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 00:14:51,783 INFO L276 IsEmpty]: Start isEmpty. Operand 8099 states and 10643 transitions. [2023-12-22 00:14:51,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-22 00:14:51,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:51,786 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:14:51,792 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 (22)] Forceful destruction successful, exit code 0 [2023-12-22 00:14:51,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 00:14:51,990 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:51,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:51,990 INFO L85 PathProgramCache]: Analyzing trace with hash 719593719, now seen corresponding path program 1 times [2023-12-22 00:14:51,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:51,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314205459] [2023-12-22 00:14:51,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:51,991 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 00:14:51,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:51,992 INFO L229 MonitoredProcess]: Starting monitored process 23 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 00:14:51,995 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 (23)] Waiting until timeout for monitored process [2023-12-22 00:14:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:52,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:14:52,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:53,205 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 22 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:53,205 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:14:53,604 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 22 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:53,604 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:53,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314205459] [2023-12-22 00:14:53,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314205459] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:14:53,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:14:53,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:14:53,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111860656] [2023-12-22 00:14:53,605 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:14:53,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:14:53,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:53,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:14:53,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:14:53,606 INFO L87 Difference]: Start difference. First operand 8099 states and 10643 transitions. Second operand has 26 states, 26 states have (on average 8.23076923076923) internal successors, (214), 25 states have internal predecessors, (214), 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 00:14:55,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:55,553 INFO L93 Difference]: Finished difference Result 11273 states and 14545 transitions. [2023-12-22 00:14:55,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 00:14:55,555 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.23076923076923) internal successors, (214), 25 states have internal predecessors, (214), 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 113 [2023-12-22 00:14:55,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:55,565 INFO L225 Difference]: With dead ends: 11273 [2023-12-22 00:14:55,565 INFO L226 Difference]: Without dead ends: 8617 [2023-12-22 00:14:55,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 00:14:55,592 INFO L413 NwaCegarLoop]: 1508 mSDtfsCounter, 13543 mSDsluCounter, 9310 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13543 SdHoareTripleChecker+Valid, 10818 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:55,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13543 Valid, 10818 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 00:14:55,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8617 states. [2023-12-22 00:14:55,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8617 to 8099. [2023-12-22 00:14:55,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8099 states, 8097 states have (on average 1.3077683092503396) internal successors, (10589), 8098 states have internal predecessors, (10589), 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 00:14:55,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8099 states to 8099 states and 10589 transitions. [2023-12-22 00:14:55,835 INFO L78 Accepts]: Start accepts. Automaton has 8099 states and 10589 transitions. Word has length 113 [2023-12-22 00:14:55,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:55,836 INFO L495 AbstractCegarLoop]: Abstraction has 8099 states and 10589 transitions. [2023-12-22 00:14:55,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.23076923076923) internal successors, (214), 25 states have internal predecessors, (214), 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 00:14:55,836 INFO L276 IsEmpty]: Start isEmpty. Operand 8099 states and 10589 transitions. [2023-12-22 00:14:55,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-22 00:14:55,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:55,839 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:14:55,860 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 (23)] Forceful destruction successful, exit code 0 [2023-12-22 00:14:56,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 00:14:56,043 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:56,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:56,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1042724713, now seen corresponding path program 1 times [2023-12-22 00:14:56,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:56,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367152380] [2023-12-22 00:14:56,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:56,044 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 00:14:56,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:56,045 INFO L229 MonitoredProcess]: Starting monitored process 24 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 00:14:56,047 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 (24)] Waiting until timeout for monitored process [2023-12-22 00:14:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:56,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:14:56,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:57,540 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 22 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:57,540 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:14:58,084 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 22 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:58,084 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:58,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367152380] [2023-12-22 00:14:58,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1367152380] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:14:58,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:14:58,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:14:58,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839363108] [2023-12-22 00:14:58,085 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:14:58,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:14:58,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:58,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:14:58,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:14:58,086 INFO L87 Difference]: Start difference. First operand 8099 states and 10589 transitions. Second operand has 26 states, 26 states have (on average 8.346153846153847) internal successors, (217), 26 states have internal predecessors, (217), 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 00:15:03,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:15:03,470 INFO L93 Difference]: Finished difference Result 12203 states and 15539 transitions. [2023-12-22 00:15:03,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 00:15:03,471 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.346153846153847) internal successors, (217), 26 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2023-12-22 00:15:03,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:15:03,483 INFO L225 Difference]: With dead ends: 12203 [2023-12-22 00:15:03,483 INFO L226 Difference]: Without dead ends: 11033 [2023-12-22 00:15:03,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 00:15:03,487 INFO L413 NwaCegarLoop]: 1607 mSDtfsCounter, 6497 mSDsluCounter, 20431 mSDsCounter, 0 mSdLazyCounter, 1891 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6497 SdHoareTripleChecker+Valid, 22038 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:15:03,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6497 Valid, 22038 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1891 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-22 00:15:03,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11033 states. [2023-12-22 00:15:03,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11033 to 5947. [2023-12-22 00:15:03,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5947 states, 5945 states have (on average 1.3473507148864592) internal successors, (8010), 5946 states have internal predecessors, (8010), 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 00:15:03,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5947 states to 5947 states and 8010 transitions. [2023-12-22 00:15:03,722 INFO L78 Accepts]: Start accepts. Automaton has 5947 states and 8010 transitions. Word has length 114 [2023-12-22 00:15:03,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:15:03,723 INFO L495 AbstractCegarLoop]: Abstraction has 5947 states and 8010 transitions. [2023-12-22 00:15:03,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.346153846153847) internal successors, (217), 26 states have internal predecessors, (217), 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 00:15:03,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5947 states and 8010 transitions. [2023-12-22 00:15:03,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-22 00:15:03,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:15:03,725 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:15:03,729 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 (24)] Forceful destruction successful, exit code 0 [2023-12-22 00:15:03,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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 00:15:03,929 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:15:03,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:15:03,929 INFO L85 PathProgramCache]: Analyzing trace with hash 688019141, now seen corresponding path program 1 times [2023-12-22 00:15:03,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:15:03,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685700242] [2023-12-22 00:15:03,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:15:03,930 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 00:15:03,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:15:03,931 INFO L229 MonitoredProcess]: Starting monitored process 25 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 00:15:03,932 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 (25)] Waiting until timeout for monitored process [2023-12-22 00:15:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:15:04,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:15:04,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:15:05,651 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 13 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:05,651 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:15:06,186 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 13 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:06,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:15:06,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685700242] [2023-12-22 00:15:06,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685700242] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:15:06,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:15:06,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:15:06,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702181924] [2023-12-22 00:15:06,187 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:15:06,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:15:06,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:15:06,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:15:06,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:15:06,188 INFO L87 Difference]: Start difference. First operand 5947 states and 8010 transitions. Second operand has 26 states, 26 states have (on average 8.538461538461538) internal successors, (222), 26 states have internal predecessors, (222), 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 00:15:11,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:15:11,861 INFO L93 Difference]: Finished difference Result 13579 states and 17042 transitions. [2023-12-22 00:15:11,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-22 00:15:11,862 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.538461538461538) internal successors, (222), 26 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2023-12-22 00:15:11,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:15:11,874 INFO L225 Difference]: With dead ends: 13579 [2023-12-22 00:15:11,874 INFO L226 Difference]: Without dead ends: 11435 [2023-12-22 00:15:11,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 940 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-22 00:15:11,880 INFO L413 NwaCegarLoop]: 1594 mSDtfsCounter, 1986 mSDsluCounter, 23319 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1986 SdHoareTripleChecker+Valid, 24913 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:15:11,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1986 Valid, 24913 Invalid, 1977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-22 00:15:11,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11435 states. [2023-12-22 00:15:12,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11435 to 6663. [2023-12-22 00:15:12,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6663 states, 6661 states have (on average 1.3250262723314818) internal successors, (8826), 6662 states have internal predecessors, (8826), 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 00:15:12,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6663 states to 6663 states and 8826 transitions. [2023-12-22 00:15:12,200 INFO L78 Accepts]: Start accepts. Automaton has 6663 states and 8826 transitions. Word has length 114 [2023-12-22 00:15:12,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:15:12,201 INFO L495 AbstractCegarLoop]: Abstraction has 6663 states and 8826 transitions. [2023-12-22 00:15:12,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.538461538461538) internal successors, (222), 26 states have internal predecessors, (222), 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 00:15:12,201 INFO L276 IsEmpty]: Start isEmpty. Operand 6663 states and 8826 transitions. [2023-12-22 00:15:12,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-22 00:15:12,203 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:15:12,203 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:15:12,207 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 (25)] Forceful destruction successful, exit code 0 [2023-12-22 00:15:12,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /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 00:15:12,407 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:15:12,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:15:12,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1466360507, now seen corresponding path program 1 times [2023-12-22 00:15:12,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:15:12,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103689574] [2023-12-22 00:15:12,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:15:12,407 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 00:15:12,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:15:12,408 INFO L229 MonitoredProcess]: Starting monitored process 26 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 00:15:12,409 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 (26)] Waiting until timeout for monitored process [2023-12-22 00:15:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:15:12,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:15:12,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:15:13,589 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 31 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:13,589 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:15:14,054 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 31 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:14,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:15:14,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103689574] [2023-12-22 00:15:14,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103689574] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:15:14,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:15:14,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:15:14,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456476999] [2023-12-22 00:15:14,055 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:15:14,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:15:14,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:15:14,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:15:14,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:15:14,056 INFO L87 Difference]: Start difference. First operand 6663 states and 8826 transitions. Second operand has 26 states, 26 states have (on average 8.153846153846153) internal successors, (212), 26 states have internal predecessors, (212), 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 00:15:20,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:15:20,698 INFO L93 Difference]: Finished difference Result 10668 states and 13619 transitions. [2023-12-22 00:15:20,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-22 00:15:20,699 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.153846153846153) internal successors, (212), 26 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2023-12-22 00:15:20,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:15:20,708 INFO L225 Difference]: With dead ends: 10668 [2023-12-22 00:15:20,708 INFO L226 Difference]: Without dead ends: 9370 [2023-12-22 00:15:20,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1054 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=881, Invalid=4089, Unknown=0, NotChecked=0, Total=4970 [2023-12-22 00:15:20,712 INFO L413 NwaCegarLoop]: 1614 mSDtfsCounter, 5110 mSDsluCounter, 23643 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5110 SdHoareTripleChecker+Valid, 25257 SdHoareTripleChecker+Invalid, 2263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:15:20,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5110 Valid, 25257 Invalid, 2263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-22 00:15:20,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9370 states. [2023-12-22 00:15:21,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9370 to 7698. [2023-12-22 00:15:21,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7696 states have (on average 1.304054054054054) internal successors, (10036), 7697 states have internal predecessors, (10036), 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 00:15:21,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 10036 transitions. [2023-12-22 00:15:21,094 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 10036 transitions. Word has length 114 [2023-12-22 00:15:21,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:15:21,094 INFO L495 AbstractCegarLoop]: Abstraction has 7698 states and 10036 transitions. [2023-12-22 00:15:21,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.153846153846153) internal successors, (212), 26 states have internal predecessors, (212), 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 00:15:21,095 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 10036 transitions. [2023-12-22 00:15:21,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-22 00:15:21,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:15:21,097 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:15:21,101 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 (26)] Forceful destruction successful, exit code 0 [2023-12-22 00:15:21,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /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 00:15:21,301 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:15:21,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:15:21,302 INFO L85 PathProgramCache]: Analyzing trace with hash -968359703, now seen corresponding path program 1 times [2023-12-22 00:15:21,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:15:21,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808869792] [2023-12-22 00:15:21,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:15:21,302 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 00:15:21,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:15:21,303 INFO L229 MonitoredProcess]: Starting monitored process 27 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 00:15:21,304 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 (27)] Waiting until timeout for monitored process [2023-12-22 00:15:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:15:21,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:15:21,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:15:22,870 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 40 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:22,871 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:15:23,593 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 40 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:23,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:15:23,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808869792] [2023-12-22 00:15:23,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808869792] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:15:23,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:15:23,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:15:23,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272086633] [2023-12-22 00:15:23,594 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:15:23,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:15:23,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:15:23,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:15:23,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:15:23,595 INFO L87 Difference]: Start difference. First operand 7698 states and 10036 transitions. Second operand has 26 states, 26 states have (on average 7.961538461538462) internal successors, (207), 26 states have internal predecessors, (207), 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 00:15:30,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:15:30,800 INFO L93 Difference]: Finished difference Result 19283 states and 23575 transitions. [2023-12-22 00:15:30,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-22 00:15:30,801 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 7.961538461538462) internal successors, (207), 26 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2023-12-22 00:15:30,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:15:30,817 INFO L225 Difference]: With dead ends: 19283 [2023-12-22 00:15:30,817 INFO L226 Difference]: Without dead ends: 17437 [2023-12-22 00:15:30,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1371 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-22 00:15:30,822 INFO L413 NwaCegarLoop]: 1619 mSDtfsCounter, 5011 mSDsluCounter, 22077 mSDsCounter, 0 mSdLazyCounter, 2142 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5011 SdHoareTripleChecker+Valid, 23696 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:15:30,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5011 Valid, 23696 Invalid, 2165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2142 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-22 00:15:30,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17437 states. [2023-12-22 00:15:31,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17437 to 13191. [2023-12-22 00:15:31,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13191 states, 13189 states have (on average 1.2461141860641443) internal successors, (16435), 13190 states have internal predecessors, (16435), 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 00:15:31,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13191 states to 13191 states and 16435 transitions. [2023-12-22 00:15:31,555 INFO L78 Accepts]: Start accepts. Automaton has 13191 states and 16435 transitions. Word has length 114 [2023-12-22 00:15:31,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:15:31,555 INFO L495 AbstractCegarLoop]: Abstraction has 13191 states and 16435 transitions. [2023-12-22 00:15:31,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.961538461538462) internal successors, (207), 26 states have internal predecessors, (207), 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 00:15:31,556 INFO L276 IsEmpty]: Start isEmpty. Operand 13191 states and 16435 transitions. [2023-12-22 00:15:31,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-22 00:15:31,558 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:15:31,559 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 00:15:31,570 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 (27)] Forceful destruction successful, exit code 0 [2023-12-22 00:15:31,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /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 00:15:31,763 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:15:31,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:15:31,763 INFO L85 PathProgramCache]: Analyzing trace with hash 339510033, now seen corresponding path program 1 times [2023-12-22 00:15:31,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:15:31,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386995325] [2023-12-22 00:15:31,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:15:31,764 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 00:15:31,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:15:31,765 INFO L229 MonitoredProcess]: Starting monitored process 28 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 00:15:31,765 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 (28)] Waiting until timeout for monitored process [2023-12-22 00:15:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:15:31,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:15:31,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:15:31,922 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:31,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:15:31,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:15:31,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386995325] [2023-12-22 00:15:31,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386995325] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:15:31,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:15:31,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:15:31,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377996943] [2023-12-22 00:15:31,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:15:31,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:15:31,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:15:31,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:15:31,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:15:31,923 INFO L87 Difference]: Start difference. First operand 13191 states and 16435 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 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 00:16:13,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:16:13,376 INFO L93 Difference]: Finished difference Result 16197 states and 21770 transitions. [2023-12-22 00:16:13,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:16:13,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 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 127 [2023-12-22 00:16:13,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:16:13,404 INFO L225 Difference]: With dead ends: 16197 [2023-12-22 00:16:13,405 INFO L226 Difference]: Without dead ends: 14693 [2023-12-22 00:16:13,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 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 00:16:13,408 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 812 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2343 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 2934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:16:13,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 588 Invalid, 2934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2343 Invalid, 0 Unknown, 0 Unchecked, 40.7s Time] [2023-12-22 00:16:13,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14693 states. [2023-12-22 00:16:14,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14693 to 14693. [2023-12-22 00:16:14,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14693 states, 14691 states have (on average 1.252807841535634) internal successors, (18405), 14692 states have internal predecessors, (18405), 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 00:16:14,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14693 states to 14693 states and 18405 transitions. [2023-12-22 00:16:14,115 INFO L78 Accepts]: Start accepts. Automaton has 14693 states and 18405 transitions. Word has length 127 [2023-12-22 00:16:14,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:16:14,115 INFO L495 AbstractCegarLoop]: Abstraction has 14693 states and 18405 transitions. [2023-12-22 00:16:14,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 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 00:16:14,115 INFO L276 IsEmpty]: Start isEmpty. Operand 14693 states and 18405 transitions. [2023-12-22 00:16:14,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-22 00:16:14,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:16:14,118 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 00:16:14,131 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 (28)] Forceful destruction successful, exit code 0 [2023-12-22 00:16:14,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /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 00:16:14,321 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:16:14,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:16:14,322 INFO L85 PathProgramCache]: Analyzing trace with hash 435412418, now seen corresponding path program 1 times [2023-12-22 00:16:14,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:16:14,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994640844] [2023-12-22 00:16:14,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:16:14,322 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 00:16:14,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:16:14,323 INFO L229 MonitoredProcess]: Starting monitored process 29 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 00:16:14,324 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 (29)] Waiting until timeout for monitored process [2023-12-22 00:16:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:16:14,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:16:14,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:16:14,972 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:16:14,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:16:14,973 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:16:14,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994640844] [2023-12-22 00:16:14,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994640844] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:16:14,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:16:14,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:16:14,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808740762] [2023-12-22 00:16:14,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:16:14,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 00:16:14,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:16:14,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 00:16:14,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:16:14,974 INFO L87 Difference]: Start difference. First operand 14693 states and 18405 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 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 00:16:45,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:16:45,152 INFO L93 Difference]: Finished difference Result 18486 states and 24022 transitions. [2023-12-22 00:16:45,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 00:16:45,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 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 133 [2023-12-22 00:16:45,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:16:45,176 INFO L225 Difference]: With dead ends: 18486 [2023-12-22 00:16:45,176 INFO L226 Difference]: Without dead ends: 15444 [2023-12-22 00:16:45,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 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 00:16:45,179 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 764 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 3683 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 3837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 3683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:16:45,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 826 Invalid, 3837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 3683 Invalid, 0 Unknown, 0 Unchecked, 29.4s Time] [2023-12-22 00:16:45,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15444 states. [2023-12-22 00:16:45,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15444 to 15444. [2023-12-22 00:16:45,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15444 states, 15442 states have (on average 1.242908949617925) internal successors, (19193), 15443 states have internal predecessors, (19193), 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 00:16:45,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15444 states to 15444 states and 19193 transitions. [2023-12-22 00:16:45,870 INFO L78 Accepts]: Start accepts. Automaton has 15444 states and 19193 transitions. Word has length 133 [2023-12-22 00:16:45,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:16:45,871 INFO L495 AbstractCegarLoop]: Abstraction has 15444 states and 19193 transitions. [2023-12-22 00:16:45,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 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 00:16:45,871 INFO L276 IsEmpty]: Start isEmpty. Operand 15444 states and 19193 transitions. [2023-12-22 00:16:45,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 00:16:45,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:16:45,876 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:16:45,882 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 (29)] Forceful destruction successful, exit code 0 [2023-12-22 00:16:46,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /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 00:16:46,076 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:16:46,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:16:46,076 INFO L85 PathProgramCache]: Analyzing trace with hash 2106845519, now seen corresponding path program 2 times [2023-12-22 00:16:46,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:16:46,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236071590] [2023-12-22 00:16:46,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:16:46,077 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 00:16:46,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:16:46,078 INFO L229 MonitoredProcess]: Starting monitored process 30 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 00:16:46,078 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 (30)] Waiting until timeout for monitored process [2023-12-22 00:16:46,136 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:16:46,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:16:46,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:16:46,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:16:46,920 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2023-12-22 00:16:46,920 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:16:46,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:16:46,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236071590] [2023-12-22 00:16:46,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236071590] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:16:46,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:16:46,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:16:46,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267601189] [2023-12-22 00:16:46,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:16:46,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:16:46,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:16:46,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:16:46,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:16:46,921 INFO L87 Difference]: Start difference. First operand 15444 states and 19193 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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 00:16:47,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:16:47,719 INFO L93 Difference]: Finished difference Result 18848 states and 23431 transitions. [2023-12-22 00:16:47,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:16:47,720 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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 158 [2023-12-22 00:16:47,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:16:47,734 INFO L225 Difference]: With dead ends: 18848 [2023-12-22 00:16:47,734 INFO L226 Difference]: Without dead ends: 17835 [2023-12-22 00:16:47,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:16:47,736 INFO L413 NwaCegarLoop]: 1554 mSDtfsCounter, 1598 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1598 SdHoareTripleChecker+Valid, 3220 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:16:47,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1598 Valid, 3220 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:16:47,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17835 states. [2023-12-22 00:16:48,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17835 to 17112. [2023-12-22 00:16:48,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17112 states, 17110 states have (on average 1.2345996493278784) internal successors, (21124), 17111 states have internal predecessors, (21124), 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 00:16:48,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17112 states to 17112 states and 21124 transitions. [2023-12-22 00:16:48,577 INFO L78 Accepts]: Start accepts. Automaton has 17112 states and 21124 transitions. Word has length 158 [2023-12-22 00:16:48,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:16:48,577 INFO L495 AbstractCegarLoop]: Abstraction has 17112 states and 21124 transitions. [2023-12-22 00:16:48,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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 00:16:48,577 INFO L276 IsEmpty]: Start isEmpty. Operand 17112 states and 21124 transitions. [2023-12-22 00:16:48,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 00:16:48,582 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:16:48,582 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:16:48,585 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 (30)] Forceful destruction successful, exit code 0 [2023-12-22 00:16:48,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /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 00:16:48,783 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:16:48,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:16:48,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1752139947, now seen corresponding path program 2 times [2023-12-22 00:16:48,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:16:48,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761717677] [2023-12-22 00:16:48,784 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:16:48,784 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 00:16:48,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:16:48,785 INFO L229 MonitoredProcess]: Starting monitored process 31 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 00:16:48,786 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 (31)] Waiting until timeout for monitored process [2023-12-22 00:16:48,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:16:48,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:16:48,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:16:48,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:16:49,721 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-12-22 00:16:49,721 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:16:49,721 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:16:49,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761717677] [2023-12-22 00:16:49,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [761717677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:16:49,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:16:49,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:16:49,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976585943] [2023-12-22 00:16:49,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:16:49,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:16:49,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:16:49,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:16:49,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:16:49,722 INFO L87 Difference]: Start difference. First operand 17112 states and 21124 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 00:16:50,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:16:50,482 INFO L93 Difference]: Finished difference Result 19479 states and 24136 transitions. [2023-12-22 00:16:50,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:16:50,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 158 [2023-12-22 00:16:50,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:16:50,498 INFO L225 Difference]: With dead ends: 19479 [2023-12-22 00:16:50,498 INFO L226 Difference]: Without dead ends: 16856 [2023-12-22 00:16:50,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:16:50,503 INFO L413 NwaCegarLoop]: 1558 mSDtfsCounter, 3047 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3047 SdHoareTripleChecker+Valid, 3196 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:16:50,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3047 Valid, 3196 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:16:50,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16856 states. [2023-12-22 00:16:51,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16856 to 16133. [2023-12-22 00:16:51,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16133 states, 16131 states have (on average 1.2311078048478086) internal successors, (19859), 16132 states have internal predecessors, (19859), 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 00:16:51,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16133 states to 16133 states and 19859 transitions. [2023-12-22 00:16:51,282 INFO L78 Accepts]: Start accepts. Automaton has 16133 states and 19859 transitions. Word has length 158 [2023-12-22 00:16:51,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:16:51,282 INFO L495 AbstractCegarLoop]: Abstraction has 16133 states and 19859 transitions. [2023-12-22 00:16:51,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 00:16:51,282 INFO L276 IsEmpty]: Start isEmpty. Operand 16133 states and 19859 transitions. [2023-12-22 00:16:51,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 00:16:51,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:16:51,288 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:16:51,301 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 (31)] Ended with exit code 0 [2023-12-22 00:16:51,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /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 00:16:51,490 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:16:51,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:16:51,491 INFO L85 PathProgramCache]: Analyzing trace with hash -402239701, now seen corresponding path program 2 times [2023-12-22 00:16:51,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:16:51,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035448667] [2023-12-22 00:16:51,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:16:51,491 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 00:16:51,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:16:51,492 INFO L229 MonitoredProcess]: Starting monitored process 32 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 00:16:51,496 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 (32)] Waiting until timeout for monitored process [2023-12-22 00:16:51,553 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:16:51,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:16:51,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:16:51,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:16:52,364 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-12-22 00:16:52,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:16:52,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:16:52,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035448667] [2023-12-22 00:16:52,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035448667] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:16:52,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:16:52,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:16:52,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136761329] [2023-12-22 00:16:52,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:16:52,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:16:52,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:16:52,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:16:52,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:16:52,366 INFO L87 Difference]: Start difference. First operand 16133 states and 19859 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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 00:16:53,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:16:53,141 INFO L93 Difference]: Finished difference Result 18422 states and 22769 transitions. [2023-12-22 00:16:53,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:16:53,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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 158 [2023-12-22 00:16:53,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:16:53,156 INFO L225 Difference]: With dead ends: 18422 [2023-12-22 00:16:53,156 INFO L226 Difference]: Without dead ends: 17395 [2023-12-22 00:16:53,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:16:53,158 INFO L413 NwaCegarLoop]: 1565 mSDtfsCounter, 3031 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3031 SdHoareTripleChecker+Valid, 3236 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:16:53,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3031 Valid, 3236 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:16:53,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17395 states. [2023-12-22 00:16:53,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17395 to 16901. [2023-12-22 00:16:53,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16901 states, 16899 states have (on average 1.2268181549204096) internal successors, (20732), 16900 states have internal predecessors, (20732), 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 00:16:53,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16901 states to 16901 states and 20732 transitions. [2023-12-22 00:16:53,964 INFO L78 Accepts]: Start accepts. Automaton has 16901 states and 20732 transitions. Word has length 158 [2023-12-22 00:16:53,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:16:53,965 INFO L495 AbstractCegarLoop]: Abstraction has 16901 states and 20732 transitions. [2023-12-22 00:16:53,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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 00:16:53,965 INFO L276 IsEmpty]: Start isEmpty. Operand 16901 states and 20732 transitions. [2023-12-22 00:16:53,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 00:16:53,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:16:53,970 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:16:53,973 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 (32)] Forceful destruction successful, exit code 0 [2023-12-22 00:16:54,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /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 00:16:54,172 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:16:54,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:16:54,173 INFO L85 PathProgramCache]: Analyzing trace with hash 95761103, now seen corresponding path program 2 times [2023-12-22 00:16:54,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:16:54,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770827613] [2023-12-22 00:16:54,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:16:54,173 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 00:16:54,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:16:54,174 INFO L229 MonitoredProcess]: Starting monitored process 33 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 00:16:54,175 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 (33)] Waiting until timeout for monitored process [2023-12-22 00:16:54,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:16:54,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:16:54,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:16:54,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:16:55,024 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-12-22 00:16:55,024 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:16:55,024 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:16:55,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770827613] [2023-12-22 00:16:55,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770827613] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:16:55,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:16:55,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:16:55,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470741957] [2023-12-22 00:16:55,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:16:55,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:16:55,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:16:55,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:16:55,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:16:55,025 INFO L87 Difference]: Start difference. First operand 16901 states and 20732 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 00:16:55,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:16:55,984 INFO L93 Difference]: Finished difference Result 19232 states and 23691 transitions. [2023-12-22 00:16:55,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:16:55,986 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 158 [2023-12-22 00:16:55,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:16:56,001 INFO L225 Difference]: With dead ends: 19232 [2023-12-22 00:16:56,002 INFO L226 Difference]: Without dead ends: 18175 [2023-12-22 00:16:56,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:16:56,004 INFO L413 NwaCegarLoop]: 1558 mSDtfsCounter, 3032 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3032 SdHoareTripleChecker+Valid, 3201 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:16:56,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3032 Valid, 3201 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:16:56,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18175 states. [2023-12-22 00:16:56,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18175 to 17681. [2023-12-22 00:16:56,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17681 states, 17679 states have (on average 1.2228632841224052) internal successors, (21619), 17680 states have internal predecessors, (21619), 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 00:16:56,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17681 states to 17681 states and 21619 transitions. [2023-12-22 00:16:56,797 INFO L78 Accepts]: Start accepts. Automaton has 17681 states and 21619 transitions. Word has length 158 [2023-12-22 00:16:56,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:16:56,798 INFO L495 AbstractCegarLoop]: Abstraction has 17681 states and 21619 transitions. [2023-12-22 00:16:56,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 00:16:56,798 INFO L276 IsEmpty]: Start isEmpty. Operand 17681 states and 21619 transitions. [2023-12-22 00:16:56,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 00:16:56,803 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:16:56,803 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:16:56,810 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 (33)] Forceful destruction successful, exit code 0 [2023-12-22 00:16:57,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /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 00:16:57,004 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:16:57,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:16:57,004 INFO L85 PathProgramCache]: Analyzing trace with hash -2123245977, now seen corresponding path program 1 times [2023-12-22 00:16:57,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:16:57,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830044011] [2023-12-22 00:16:57,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:16:57,005 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 00:16:57,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:16:57,006 INFO L229 MonitoredProcess]: Starting monitored process 34 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 00:16:57,006 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 (34)] Waiting until timeout for monitored process [2023-12-22 00:16:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:16:57,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:16:57,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:16:58,904 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 38 proven. 218 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:16:58,904 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:16:59,728 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 38 proven. 218 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:16:59,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:16:59,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830044011] [2023-12-22 00:16:59,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830044011] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:16:59,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:16:59,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:16:59,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834830332] [2023-12-22 00:16:59,729 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:16:59,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:16:59,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:16:59,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:16:59,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:16:59,733 INFO L87 Difference]: Start difference. First operand 17681 states and 21619 transitions. Second operand has 36 states, 36 states have (on average 8.5) internal successors, (306), 36 states have internal predecessors, (306), 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 00:17:16,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:17:16,535 INFO L93 Difference]: Finished difference Result 22368 states and 27115 transitions. [2023-12-22 00:17:16,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-12-22 00:17:16,535 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 8.5) internal successors, (306), 36 states have internal predecessors, (306), 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 159 [2023-12-22 00:17:16,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:17:16,551 INFO L225 Difference]: With dead ends: 22368 [2023-12-22 00:17:16,551 INFO L226 Difference]: Without dead ends: 20510 [2023-12-22 00:17:16,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4488 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=2331, Invalid=14961, Unknown=0, NotChecked=0, Total=17292 [2023-12-22 00:17:16,558 INFO L413 NwaCegarLoop]: 1686 mSDtfsCounter, 5219 mSDsluCounter, 37470 mSDsCounter, 0 mSdLazyCounter, 5986 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5219 SdHoareTripleChecker+Valid, 39156 SdHoareTripleChecker+Invalid, 6013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 5986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:17:16,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5219 Valid, 39156 Invalid, 6013 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 5986 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-12-22 00:17:16,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20510 states. [2023-12-22 00:17:17,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20510 to 11414. [2023-12-22 00:17:17,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11414 states, 11412 states have (on average 1.2584998247458816) internal successors, (14362), 11413 states have internal predecessors, (14362), 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 00:17:17,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11414 states to 11414 states and 14362 transitions. [2023-12-22 00:17:17,179 INFO L78 Accepts]: Start accepts. Automaton has 11414 states and 14362 transitions. Word has length 159 [2023-12-22 00:17:17,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:17:17,179 INFO L495 AbstractCegarLoop]: Abstraction has 11414 states and 14362 transitions. [2023-12-22 00:17:17,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.5) internal successors, (306), 36 states have internal predecessors, (306), 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 00:17:17,180 INFO L276 IsEmpty]: Start isEmpty. Operand 11414 states and 14362 transitions. [2023-12-22 00:17:17,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 00:17:17,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:17:17,182 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:17:17,188 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 (34)] Ended with exit code 0 [2023-12-22 00:17:17,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /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 00:17:17,383 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:17:17,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:17:17,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1699490827, now seen corresponding path program 1 times [2023-12-22 00:17:17,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:17:17,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567137458] [2023-12-22 00:17:17,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:17:17,384 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 00:17:17,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:17:17,385 INFO L229 MonitoredProcess]: Starting monitored process 35 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 00:17:17,385 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 (35)] Waiting until timeout for monitored process [2023-12-22 00:17:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:17:17,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:17:17,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:17:19,428 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 54 proven. 202 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:17:19,428 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:17:20,276 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 54 proven. 202 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:17:20,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:17:20,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567137458] [2023-12-22 00:17:20,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567137458] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:17:20,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:17:20,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:17:20,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135313197] [2023-12-22 00:17:20,277 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:17:20,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:17:20,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:17:20,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:17:20,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:17:20,279 INFO L87 Difference]: Start difference. First operand 11414 states and 14362 transitions. Second operand has 36 states, 36 states have (on average 8.36111111111111) internal successors, (301), 36 states have internal predecessors, (301), 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 00:17:39,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:17:39,078 INFO L93 Difference]: Finished difference Result 15781 states and 19464 transitions. [2023-12-22 00:17:39,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2023-12-22 00:17:39,079 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 8.36111111111111) internal successors, (301), 36 states have internal predecessors, (301), 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 159 [2023-12-22 00:17:39,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:17:39,092 INFO L225 Difference]: With dead ends: 15781 [2023-12-22 00:17:39,092 INFO L226 Difference]: Without dead ends: 13904 [2023-12-22 00:17:39,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6304 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=2857, Invalid=19195, Unknown=0, NotChecked=0, Total=22052 [2023-12-22 00:17:39,100 INFO L413 NwaCegarLoop]: 1684 mSDtfsCounter, 5424 mSDsluCounter, 31150 mSDsCounter, 0 mSdLazyCounter, 5081 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5424 SdHoareTripleChecker+Valid, 32834 SdHoareTripleChecker+Invalid, 5120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 5081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:17:39,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5424 Valid, 32834 Invalid, 5120 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 5081 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-22 00:17:39,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13904 states. [2023-12-22 00:17:39,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13904 to 11826. [2023-12-22 00:17:39,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11826 states, 11824 states have (on average 1.2539749661705006) internal successors, (14827), 11825 states have internal predecessors, (14827), 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 00:17:39,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11826 states to 11826 states and 14827 transitions. [2023-12-22 00:17:39,720 INFO L78 Accepts]: Start accepts. Automaton has 11826 states and 14827 transitions. Word has length 159 [2023-12-22 00:17:39,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:17:39,720 INFO L495 AbstractCegarLoop]: Abstraction has 11826 states and 14827 transitions. [2023-12-22 00:17:39,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.36111111111111) internal successors, (301), 36 states have internal predecessors, (301), 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 00:17:39,720 INFO L276 IsEmpty]: Start isEmpty. Operand 11826 states and 14827 transitions. [2023-12-22 00:17:39,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 00:17:39,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:17:39,723 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:17:39,729 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 (35)] Forceful destruction successful, exit code 0 [2023-12-22 00:17:39,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /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 00:17:39,924 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:17:39,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:17:39,924 INFO L85 PathProgramCache]: Analyzing trace with hash -42353433, now seen corresponding path program 1 times [2023-12-22 00:17:39,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:17:39,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607832220] [2023-12-22 00:17:39,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:17:39,925 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 00:17:39,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:17:39,926 INFO L229 MonitoredProcess]: Starting monitored process 36 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 00:17:39,927 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 (36)] Waiting until timeout for monitored process [2023-12-22 00:17:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:17:40,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:17:40,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:17:42,129 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 70 proven. 186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:17:42,129 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:17:42,970 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 70 proven. 186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:17:42,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:17:42,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607832220] [2023-12-22 00:17:42,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [607832220] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:17:42,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:17:42,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:17:42,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541983888] [2023-12-22 00:17:42,971 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:17:42,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:17:42,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:17:42,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:17:42,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:17:42,972 INFO L87 Difference]: Start difference. First operand 11826 states and 14827 transitions. Second operand has 36 states, 36 states have (on average 8.222222222222221) internal successors, (296), 36 states have internal predecessors, (296), 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 00:18:04,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:18:04,887 INFO L93 Difference]: Finished difference Result 16586 states and 20336 transitions. [2023-12-22 00:18:04,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-22 00:18:04,887 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 8.222222222222221) internal successors, (296), 36 states have internal predecessors, (296), 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 159 [2023-12-22 00:18:04,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:18:04,901 INFO L225 Difference]: With dead ends: 16586 [2023-12-22 00:18:04,902 INFO L226 Difference]: Without dead ends: 14665 [2023-12-22 00:18:04,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6993 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=3125, Invalid=21367, Unknown=0, NotChecked=0, Total=24492 [2023-12-22 00:18:04,907 INFO L413 NwaCegarLoop]: 1721 mSDtfsCounter, 3725 mSDsluCounter, 36665 mSDsCounter, 0 mSdLazyCounter, 6954 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3725 SdHoareTripleChecker+Valid, 38386 SdHoareTripleChecker+Invalid, 6985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 6954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:18:04,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3725 Valid, 38386 Invalid, 6985 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 6954 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-12-22 00:18:04,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14665 states. [2023-12-22 00:18:05,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14665 to 12013. [2023-12-22 00:18:05,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12013 states, 12011 states have (on average 1.2513529264840564) internal successors, (15030), 12012 states have internal predecessors, (15030), 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 00:18:05,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12013 states to 12013 states and 15030 transitions. [2023-12-22 00:18:05,577 INFO L78 Accepts]: Start accepts. Automaton has 12013 states and 15030 transitions. Word has length 159 [2023-12-22 00:18:05,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:18:05,577 INFO L495 AbstractCegarLoop]: Abstraction has 12013 states and 15030 transitions. [2023-12-22 00:18:05,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.222222222222221) internal successors, (296), 36 states have internal predecessors, (296), 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 00:18:05,578 INFO L276 IsEmpty]: Start isEmpty. Operand 12013 states and 15030 transitions. [2023-12-22 00:18:05,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-22 00:18:05,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:18:05,581 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:18:05,586 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 (36)] Forceful destruction successful, exit code 0 [2023-12-22 00:18:05,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /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 00:18:05,781 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:18:05,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:18:05,782 INFO L85 PathProgramCache]: Analyzing trace with hash 58765811, now seen corresponding path program 1 times [2023-12-22 00:18:05,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:18:05,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410171128] [2023-12-22 00:18:05,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:18:05,782 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 00:18:05,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:18:05,783 INFO L229 MonitoredProcess]: Starting monitored process 37 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 00:18:05,784 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 (37)] Waiting until timeout for monitored process [2023-12-22 00:18:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:18:05,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:18:05,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:18:08,258 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 32 proven. 234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:18:08,258 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:18:09,160 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 32 proven. 234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:18:09,160 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:18:09,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410171128] [2023-12-22 00:18:09,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410171128] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:18:09,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:18:09,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:18:09,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108152872] [2023-12-22 00:18:09,161 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:18:09,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:18:09,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:18:09,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:18:09,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:18:09,162 INFO L87 Difference]: Start difference. First operand 12013 states and 15030 transitions. Second operand has 36 states, 36 states have (on average 8.666666666666666) internal successors, (312), 36 states have internal predecessors, (312), 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 00:18:25,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:18:25,400 INFO L93 Difference]: Finished difference Result 24428 states and 29354 transitions. [2023-12-22 00:18:25,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-22 00:18:25,401 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 8.666666666666666) internal successors, (312), 36 states have internal predecessors, (312), 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 160 [2023-12-22 00:18:25,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:18:25,421 INFO L225 Difference]: With dead ends: 24428 [2023-12-22 00:18:25,422 INFO L226 Difference]: Without dead ends: 22680 [2023-12-22 00:18:25,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4172 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=2091, Invalid=14165, Unknown=0, NotChecked=0, Total=16256 [2023-12-22 00:18:25,428 INFO L413 NwaCegarLoop]: 1684 mSDtfsCounter, 5361 mSDsluCounter, 30920 mSDsCounter, 0 mSdLazyCounter, 4851 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5361 SdHoareTripleChecker+Valid, 32604 SdHoareTripleChecker+Invalid, 4876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 4851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:18:25,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5361 Valid, 32604 Invalid, 4876 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 4851 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-12-22 00:18:25,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22680 states. [2023-12-22 00:18:26,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22680 to 20294. [2023-12-22 00:18:26,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20294 states, 20292 states have (on average 1.2107234378080032) internal successors, (24568), 20293 states have internal predecessors, (24568), 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 00:18:26,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20294 states to 20294 states and 24568 transitions. [2023-12-22 00:18:26,810 INFO L78 Accepts]: Start accepts. Automaton has 20294 states and 24568 transitions. Word has length 160 [2023-12-22 00:18:26,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:18:26,810 INFO L495 AbstractCegarLoop]: Abstraction has 20294 states and 24568 transitions. [2023-12-22 00:18:26,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.666666666666666) internal successors, (312), 36 states have internal predecessors, (312), 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 00:18:26,810 INFO L276 IsEmpty]: Start isEmpty. Operand 20294 states and 24568 transitions. [2023-12-22 00:18:26,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-22 00:18:26,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:18:26,822 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:26,828 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 (37)] Forceful destruction successful, exit code 0 [2023-12-22 00:18:27,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /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 00:18:27,023 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:18:27,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:18:27,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1923711553, now seen corresponding path program 2 times [2023-12-22 00:18:27,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:18:27,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [690165349] [2023-12-22 00:18:27,024 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:18:27,024 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 00:18:27,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:18:27,025 INFO L229 MonitoredProcess]: Starting monitored process 38 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 00:18:27,025 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 (38)] Waiting until timeout for monitored process [2023-12-22 00:18:27,185 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:18:27,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:18:27,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-22 00:18:27,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:18:29,801 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 77 proven. 415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:18:29,801 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:18:31,412 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 77 proven. 415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:18:31,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:18:31,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [690165349] [2023-12-22 00:18:31,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [690165349] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:18:31,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:18:31,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 44 [2023-12-22 00:18:31,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594691223] [2023-12-22 00:18:31,413 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:18:31,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-22 00:18:31,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:18:31,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-22 00:18:31,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1737, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 00:18:31,414 INFO L87 Difference]: Start difference. First operand 20294 states and 24568 transitions. Second operand has 44 states, 44 states have (on average 8.818181818181818) internal successors, (388), 44 states have internal predecessors, (388), 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 00:19:20,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:19:20,632 INFO L93 Difference]: Finished difference Result 26345 states and 31656 transitions. [2023-12-22 00:19:20,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2023-12-22 00:19:20,633 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 8.818181818181818) internal successors, (388), 44 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2023-12-22 00:19:20,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:19:20,659 INFO L225 Difference]: With dead ends: 26345 [2023-12-22 00:19:20,659 INFO L226 Difference]: Without dead ends: 22547 [2023-12-22 00:19:20,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 304 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33486 ImplicationChecksByTransitivity, 38.8s TimeCoverageRelationStatistics Valid=9253, Invalid=84077, Unknown=0, NotChecked=0, Total=93330 [2023-12-22 00:19:20,672 INFO L413 NwaCegarLoop]: 1742 mSDtfsCounter, 33413 mSDsluCounter, 21794 mSDsCounter, 0 mSdLazyCounter, 7226 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33413 SdHoareTripleChecker+Valid, 23536 SdHoareTripleChecker+Invalid, 7328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 7226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:19:20,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33413 Valid, 23536 Invalid, 7328 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [102 Valid, 7226 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2023-12-22 00:19:20,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22547 states. [2023-12-22 00:19:22,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22547 to 21090. [2023-12-22 00:19:22,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21090 states, 21088 states have (on average 1.2073691198786038) internal successors, (25461), 21089 states have internal predecessors, (25461), 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 00:19:22,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21090 states to 21090 states and 25461 transitions. [2023-12-22 00:19:22,280 INFO L78 Accepts]: Start accepts. Automaton has 21090 states and 25461 transitions. Word has length 203 [2023-12-22 00:19:22,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:19:22,281 INFO L495 AbstractCegarLoop]: Abstraction has 21090 states and 25461 transitions. [2023-12-22 00:19:22,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 8.818181818181818) internal successors, (388), 44 states have internal predecessors, (388), 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 00:19:22,281 INFO L276 IsEmpty]: Start isEmpty. Operand 21090 states and 25461 transitions. [2023-12-22 00:19:22,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-22 00:19:22,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:19:22,291 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:19:22,295 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 (38)] Forceful destruction successful, exit code 0 [2023-12-22 00:19:22,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /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 00:19:22,491 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:19:22,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:19:22,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1806186633, now seen corresponding path program 1 times [2023-12-22 00:19:22,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:19:22,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116741660] [2023-12-22 00:19:22,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:19:22,493 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 00:19:22,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:19:22,494 INFO L229 MonitoredProcess]: Starting monitored process 39 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 00:19:22,501 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 (39)] Waiting until timeout for monitored process [2023-12-22 00:19:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:19:22,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-22 00:19:22,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:19:24,500 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 100 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:19:24,501 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:19:26,024 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 100 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:19:26,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:19:26,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1116741660] [2023-12-22 00:19:26,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1116741660] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:19:26,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:19:26,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 44 [2023-12-22 00:19:26,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258348107] [2023-12-22 00:19:26,025 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:19:26,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-22 00:19:26,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:19:26,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-22 00:19:26,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1737, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 00:19:26,027 INFO L87 Difference]: Start difference. First operand 21090 states and 25461 transitions. Second operand has 44 states, 44 states have (on average 8.704545454545455) internal successors, (383), 44 states have internal predecessors, (383), 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 00:20:10,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:20:10,584 INFO L93 Difference]: Finished difference Result 26355 states and 31599 transitions. [2023-12-22 00:20:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 254 states. [2023-12-22 00:20:10,585 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 8.704545454545455) internal successors, (383), 44 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2023-12-22 00:20:10,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:20:10,607 INFO L225 Difference]: With dead ends: 26355 [2023-12-22 00:20:10,607 INFO L226 Difference]: Without dead ends: 21671 [2023-12-22 00:20:10,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 291 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30215 ImplicationChecksByTransitivity, 34.5s TimeCoverageRelationStatistics Valid=8481, Invalid=77075, Unknown=0, NotChecked=0, Total=85556 [2023-12-22 00:20:10,619 INFO L413 NwaCegarLoop]: 1765 mSDtfsCounter, 30559 mSDsluCounter, 20589 mSDsCounter, 0 mSdLazyCounter, 7402 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30559 SdHoareTripleChecker+Valid, 22354 SdHoareTripleChecker+Invalid, 7495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 7402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:20:10,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30559 Valid, 22354 Invalid, 7495 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [93 Valid, 7402 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2023-12-22 00:20:10,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21671 states. [2023-12-22 00:20:12,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21671 to 20491. [2023-12-22 00:20:12,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20491 states, 20489 states have (on average 1.2061594026062765) internal successors, (24713), 20490 states have internal predecessors, (24713), 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 00:20:12,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20491 states to 20491 states and 24713 transitions. [2023-12-22 00:20:12,189 INFO L78 Accepts]: Start accepts. Automaton has 20491 states and 24713 transitions. Word has length 203 [2023-12-22 00:20:12,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:20:12,190 INFO L495 AbstractCegarLoop]: Abstraction has 20491 states and 24713 transitions. [2023-12-22 00:20:12,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 8.704545454545455) internal successors, (383), 44 states have internal predecessors, (383), 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 00:20:12,190 INFO L276 IsEmpty]: Start isEmpty. Operand 20491 states and 24713 transitions. [2023-12-22 00:20:12,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-22 00:20:12,199 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:20:12,199 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:20:12,207 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 (39)] Forceful destruction successful, exit code 0 [2023-12-22 00:20:12,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /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 00:20:12,399 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:20:12,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:20:12,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1850224449, now seen corresponding path program 1 times [2023-12-22 00:20:12,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:20:12,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278213485] [2023-12-22 00:20:12,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:20:12,400 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 00:20:12,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:20:12,401 INFO L229 MonitoredProcess]: Starting monitored process 40 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 00:20:12,405 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 (40)] Waiting until timeout for monitored process [2023-12-22 00:20:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:20:12,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-22 00:20:12,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:20:15,950 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 260 proven. 186 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-22 00:20:15,950 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:20:17,904 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 260 proven. 186 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-22 00:20:17,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:20:17,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278213485] [2023-12-22 00:20:17,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278213485] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:20:17,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:20:17,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 44 [2023-12-22 00:20:17,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935292695] [2023-12-22 00:20:17,905 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:20:17,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-22 00:20:17,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:20:17,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-22 00:20:17,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1722, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 00:20:17,956 INFO L87 Difference]: Start difference. First operand 20491 states and 24713 transitions. Second operand has 44 states, 44 states have (on average 7.045454545454546) internal successors, (310), 44 states have internal predecessors, (310), 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 00:26:50,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:26:50,644 INFO L93 Difference]: Finished difference Result 53506 states and 62464 transitions. [2023-12-22 00:26:50,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 720 states. [2023-12-22 00:26:50,646 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 7.045454545454546) internal successors, (310), 44 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2023-12-22 00:26:50,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:26:50,710 INFO L225 Difference]: With dead ends: 53506 [2023-12-22 00:26:50,710 INFO L226 Difference]: Without dead ends: 50024 [2023-12-22 00:26:50,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1118 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 755 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258684 ImplicationChecksByTransitivity, 346.8s TimeCoverageRelationStatistics Valid=40708, Invalid=531584, Unknown=0, NotChecked=0, Total=572292 [2023-12-22 00:26:50,741 INFO L413 NwaCegarLoop]: 2049 mSDtfsCounter, 25177 mSDsluCounter, 31227 mSDsCounter, 0 mSdLazyCounter, 12861 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25177 SdHoareTripleChecker+Valid, 33276 SdHoareTripleChecker+Invalid, 13016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 12861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:26:50,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25177 Valid, 33276 Invalid, 13016 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [155 Valid, 12861 Invalid, 0 Unknown, 0 Unchecked, 43.0s Time] [2023-12-22 00:26:50,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50024 states. [2023-12-22 00:26:53,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50024 to 26188. [2023-12-22 00:26:53,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26188 states, 26186 states have (on average 1.1921255632780876) internal successors, (31217), 26187 states have internal predecessors, (31217), 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 00:26:53,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26188 states to 26188 states and 31217 transitions. [2023-12-22 00:26:53,205 INFO L78 Accepts]: Start accepts. Automaton has 26188 states and 31217 transitions. Word has length 203 [2023-12-22 00:26:53,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:26:53,215 INFO L495 AbstractCegarLoop]: Abstraction has 26188 states and 31217 transitions. [2023-12-22 00:26:53,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 7.045454545454546) internal successors, (310), 44 states have internal predecessors, (310), 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 00:26:53,215 INFO L276 IsEmpty]: Start isEmpty. Operand 26188 states and 31217 transitions. [2023-12-22 00:26:53,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-12-22 00:26:53,230 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:26:53,230 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2023-12-22 00:26:53,237 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 (40)] Forceful destruction successful, exit code 0 [2023-12-22 00:26:53,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /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 00:26:53,435 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:26:53,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:26:53,435 INFO L85 PathProgramCache]: Analyzing trace with hash 2066707535, now seen corresponding path program 1 times [2023-12-22 00:26:53,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:26:53,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660404865] [2023-12-22 00:26:53,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:26:53,436 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 00:26:53,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:26:53,437 INFO L229 MonitoredProcess]: Starting monitored process 41 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 00:26:53,438 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 (41)] Waiting until timeout for monitored process [2023-12-22 00:26:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:26:53,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-22 00:26:53,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:26:55,573 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 279 proven. 74 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-22 00:26:55,573 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:26:57,736 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 279 proven. 74 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-22 00:26:57,736 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:26:57,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660404865] [2023-12-22 00:26:57,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1660404865] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:26:57,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:26:57,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 40 [2023-12-22 00:26:57,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202403304] [2023-12-22 00:26:57,737 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:26:57,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-22 00:26:57,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:26:57,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-22 00:26:57,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1409, Unknown=0, NotChecked=0, Total=1560 [2023-12-22 00:26:57,738 INFO L87 Difference]: Start difference. First operand 26188 states and 31217 transitions. Second operand has 40 states, 40 states have (on average 6.125) internal successors, (245), 40 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-22 00:27:32,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2023-12-22 00:27:32,724 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 (41)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 00:27:32,724 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 00:27:32,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13401 ImplicationChecksByTransitivity, 31.2s TimeCoverageRelationStatistics Valid=5370, Invalid=32460, Unknown=0, NotChecked=0, Total=37830 [2023-12-22 00:27:32,724 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 3464 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 2930 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3464 SdHoareTripleChecker+Valid, 2563 SdHoareTripleChecker+Invalid, 3068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 2930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:27:32,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3464 Valid, 2563 Invalid, 3068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 2930 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-12-22 00:27:32,725 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-22 00:27:32,735 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 (41)] Ended with exit code 0 [2023-12-22 00:27:32,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /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 00:27:32,935 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (26188states) and FLOYD_HOARE automaton (currently 162 states, 40 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 195 known predicates. [2023-12-22 00:27:32,937 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-22 00:27:32,949 INFO L445 BasicCegarLoop]: Path program histogram: [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] [2023-12-22 00:27:32,951 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 00:27:32,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 12:27:32 BoogieIcfgContainer [2023-12-22 00:27:32,957 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 00:27:32,959 INFO L158 Benchmark]: Toolchain (without parser) took 856135.94ms. Allocated memory was 360.7MB in the beginning and 1.9GB in the end (delta: 1.5GB). Free memory was 294.1MB in the beginning and 347.9MB in the end (delta: -53.8MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-22 00:27:32,959 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 252.7MB. Free memory is still 203.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 00:27:32,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1443.07ms. Allocated memory is still 360.7MB. Free memory was 294.1MB in the beginning and 139.8MB in the end (delta: 154.2MB). Peak memory consumption was 155.0MB. Max. memory is 8.0GB. [2023-12-22 00:27:32,959 INFO L158 Benchmark]: Boogie Procedure Inliner took 194.62ms. Allocated memory is still 360.7MB. Free memory was 139.8MB in the beginning and 282.6MB in the end (delta: -142.8MB). Peak memory consumption was 25.0MB. Max. memory is 8.0GB. [2023-12-22 00:27:32,959 INFO L158 Benchmark]: Boogie Preprocessor took 221.62ms. Allocated memory is still 360.7MB. Free memory was 282.6MB in the beginning and 243.8MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-12-22 00:27:32,959 INFO L158 Benchmark]: RCFGBuilder took 26919.36ms. Allocated memory was 360.7MB in the beginning and 592.4MB in the end (delta: 231.7MB). Free memory was 243.8MB in the beginning and 390.1MB in the end (delta: -146.3MB). Peak memory consumption was 226.7MB. Max. memory is 8.0GB. [2023-12-22 00:27:32,960 INFO L158 Benchmark]: TraceAbstraction took 827350.57ms. Allocated memory was 592.4MB in the beginning and 1.9GB in the end (delta: 1.3GB). Free memory was 389.5MB in the beginning and 347.9MB in the end (delta: 41.6MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-22 00:27:32,960 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 252.7MB. Free memory is still 203.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1443.07ms. Allocated memory is still 360.7MB. Free memory was 294.1MB in the beginning and 139.8MB in the end (delta: 154.2MB). Peak memory consumption was 155.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 194.62ms. Allocated memory is still 360.7MB. Free memory was 139.8MB in the beginning and 282.6MB in the end (delta: -142.8MB). Peak memory consumption was 25.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 221.62ms. Allocated memory is still 360.7MB. Free memory was 282.6MB in the beginning and 243.8MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * RCFGBuilder took 26919.36ms. Allocated memory was 360.7MB in the beginning and 592.4MB in the end (delta: 231.7MB). Free memory was 243.8MB in the beginning and 390.1MB in the end (delta: -146.3MB). Peak memory consumption was 226.7MB. Max. memory is 8.0GB. * TraceAbstraction took 827350.57ms. Allocated memory was 592.4MB in the beginning and 1.9GB in the end (delta: 1.3GB). Free memory was 389.5MB in the beginning and 347.9MB in the end (delta: 41.6MB). Peak memory consumption was 1.3GB. 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: 359]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 359). Cancelled while NwaCegarLoop was constructing difference of abstraction (26188states) and FLOYD_HOARE automaton (currently 162 states, 40 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 195 known predicates. - TimeoutResultAtElement [Line: 563]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 563). Cancelled while NwaCegarLoop was constructing difference of abstraction (26188states) and FLOYD_HOARE automaton (currently 162 states, 40 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 195 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 820 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 827.3s, OverallIterations: 40, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 747.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 222276 SdHoareTripleChecker+Valid, 216.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 222276 mSDsluCounter, 449098 SdHoareTripleChecker+Invalid, 191.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 390088 mSDsCounter, 2119 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75154 IncrementalHoareTripleChecker+Invalid, 77273 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2119 mSolverCounterUnsat, 59010 mSDtfsCounter, 75154 mSolverCounterSat, 1.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8747 GetRequests, 6090 SyntacticMatches, 0 SemanticMatches, 2656 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363685 ImplicationChecksByTransitivity, 522.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26188occurred in iteration=39, InterpolantAutomatonStates: 2101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 17.4s AutomataMinimizationTime, 39 MinimizatonAttempts, 65565 StatesRemovedByMinimization, 35 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 50.7s InterpolantComputationTime, 4135 NumberOfCodeBlocks, 3719 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 6651 ConstructedInterpolants, 1841 QuantifiedInterpolants, 90623 SizeOfPredicates, 208 NumberOfNonLiveVariables, 8848 ConjunctsInSsa, 370 ConjunctsInUnsatCore, 60 InterpolantComputations, 20 PerfectInterpolantSequences, 3846/8658 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