/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.8.1.ufo.UNBOUNDED.pals+Problem12_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 02:16:39,575 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 02:16:39,643 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 02:16:39,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 02:16:39,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 02:16:39,671 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 02:16:39,671 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 02:16:39,671 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 02:16:39,672 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 02:16:39,674 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 02:16:39,674 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 02:16:39,675 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 02:16:39,675 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 02:16:39,676 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 02:16:39,676 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 02:16:39,677 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 02:16:39,677 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 02:16:39,677 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 02:16:39,677 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 02:16:39,678 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 02:16:39,678 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 02:16:39,678 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 02:16:39,678 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 02:16:39,679 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 02:16:39,679 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 02:16:39,679 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 02:16:39,679 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 02:16:39,679 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 02:16:39,679 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 02:16:39,679 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 02:16:39,680 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 02:16:39,680 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 02:16:39,680 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 02:16:39,680 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 02:16:39,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:16:39,681 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 02:16:39,681 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 02:16:39,681 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 02:16:39,681 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 02:16:39,681 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 02:16:39,681 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 02:16:39,681 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 02:16:39,681 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 02:16:39,681 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 02:16:39,682 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 02:16:39,682 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 02:16:39,682 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 02:16:39,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 02:16:39,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 02:16:39,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 02:16:39,866 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 02:16:39,870 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 02:16:39,871 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-22 02:16:40,811 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 02:16:41,165 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 02:16:41,166 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-22 02:16:41,192 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31aa80305/7f107b2351d04eba9a21df4b0e473705/FLAG69b2d3dd7 [2023-12-22 02:16:41,208 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31aa80305/7f107b2351d04eba9a21df4b0e473705 [2023-12-22 02:16:41,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 02:16:41,212 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 02:16:41,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 02:16:41,214 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 02:16:41,217 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 02:16:41,217 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:16:41" (1/1) ... [2023-12-22 02:16:41,218 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664b963f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:16:41, skipping insertion in model container [2023-12-22 02:16:41,218 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:16:41" (1/1) ... [2023-12-22 02:16:41,310 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 02:16:41,641 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.8.1.ufo.UNBOUNDED.pals+Problem12_label05.c[26925,26938] [2023-12-22 02:16:41,684 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.8.1.ufo.UNBOUNDED.pals+Problem12_label05.c[33861,33874] [2023-12-22 02:16:42,156 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:16:42,172 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 02:16:42,225 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.8.1.ufo.UNBOUNDED.pals+Problem12_label05.c[26925,26938] [2023-12-22 02:16:42,232 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.8.1.ufo.UNBOUNDED.pals+Problem12_label05.c[33861,33874] [2023-12-22 02:16:42,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:16:42,575 INFO L206 MainTranslator]: Completed translation [2023-12-22 02:16:42,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:16:42 WrapperNode [2023-12-22 02:16:42,575 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 02:16:42,576 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 02:16:42,577 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 02:16:42,577 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 02:16:42,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:16:42" (1/1) ... [2023-12-22 02:16:42,670 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:16:42" (1/1) ... [2023-12-22 02:16:42,769 INFO L138 Inliner]: procedures = 41, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5251 [2023-12-22 02:16:42,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 02:16:42,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 02:16:42,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 02:16:42,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 02:16:42,777 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:16:42" (1/1) ... [2023-12-22 02:16:42,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:16:42" (1/1) ... [2023-12-22 02:16:42,813 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:16:42" (1/1) ... [2023-12-22 02:16:42,874 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 02:16:42,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:16:42" (1/1) ... [2023-12-22 02:16:42,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:16:42" (1/1) ... [2023-12-22 02:16:42,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:16:42" (1/1) ... [2023-12-22 02:16:42,956 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:16:42" (1/1) ... [2023-12-22 02:16:42,978 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:16:42" (1/1) ... [2023-12-22 02:16:42,993 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:16:42" (1/1) ... [2023-12-22 02:16:43,020 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 02:16:43,021 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 02:16:43,021 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 02:16:43,021 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 02:16:43,022 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:16:42" (1/1) ... [2023-12-22 02:16:43,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:16:43,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 02:16:43,046 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 02:16:43,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 02:16:43,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 02:16:43,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 02:16:43,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 02:16:43,055 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 02:16:43,185 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 02:16:43,187 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 02:17:08,401 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 02:17:08,443 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 02:17:08,443 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 02:17:08,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:17:08 BoogieIcfgContainer [2023-12-22 02:17:08,444 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 02:17:08,446 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 02:17:08,446 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 02:17:08,448 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 02:17:08,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:16:41" (1/3) ... [2023-12-22 02:17:08,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4803af8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:17:08, skipping insertion in model container [2023-12-22 02:17:08,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:16:42" (2/3) ... [2023-12-22 02:17:08,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4803af8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:17:08, skipping insertion in model container [2023-12-22 02:17:08,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:17:08" (3/3) ... [2023-12-22 02:17:08,450 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-22 02:17:08,461 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 02:17:08,461 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 02:17:08,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 02:17:08,508 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;@21fa7d10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 02:17:08,509 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 02:17:08,516 INFO L276 IsEmpty]: Start isEmpty. Operand has 884 states, 881 states have (on average 1.9693530079455164) internal successors, (1735), 883 states have internal predecessors, (1735), 0 states have call successors, (0), 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 02:17:08,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-22 02:17:08,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:17:08,522 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] [2023-12-22 02:17:08,523 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:17:08,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:17:08,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1451362732, now seen corresponding path program 1 times [2023-12-22 02:17:08,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:17:08,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924897902] [2023-12-22 02:17:08,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:17:08,536 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 02:17:08,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:17:08,538 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 02:17:08,605 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 02:17:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:17:08,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 02:17:08,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:17:08,735 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 02:17:08,735 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:17:08,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:17:08,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924897902] [2023-12-22 02:17:08,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1924897902] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:17:08,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:17:08,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:17:08,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958849024] [2023-12-22 02:17:08,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:17:08,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 02:17:08,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:17:08,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 02:17:08,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 02:17:08,770 INFO L87 Difference]: Start difference. First operand has 884 states, 881 states have (on average 1.9693530079455164) internal successors, (1735), 883 states have internal predecessors, (1735), 0 states have call successors, (0), 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 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 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 02:17:08,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:17:08,878 INFO L93 Difference]: Finished difference Result 1702 states and 3341 transitions. [2023-12-22 02:17:08,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 02:17:08,880 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2023-12-22 02:17:08,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:17:08,897 INFO L225 Difference]: With dead ends: 1702 [2023-12-22 02:17:08,897 INFO L226 Difference]: Without dead ends: 880 [2023-12-22 02:17:08,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 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 02:17:08,906 INFO L413 NwaCegarLoop]: 1663 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:17:08,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1663 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:17:08,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2023-12-22 02:17:08,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 880. [2023-12-22 02:17:08,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 878 states have (on average 1.8952164009111618) internal successors, (1664), 879 states have internal predecessors, (1664), 0 states have call successors, (0), 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 02:17:08,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1664 transitions. [2023-12-22 02:17:08,973 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1664 transitions. Word has length 27 [2023-12-22 02:17:08,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:17:08,973 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1664 transitions. [2023-12-22 02:17:08,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 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 02:17:08,973 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1664 transitions. [2023-12-22 02:17:08,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-22 02:17:08,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:17:08,975 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] [2023-12-22 02:17:08,979 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 02:17:09,178 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 02:17:09,179 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:17:09,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:17:09,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1038166230, now seen corresponding path program 1 times [2023-12-22 02:17:09,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:17:09,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345113219] [2023-12-22 02:17:09,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:17:09,181 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 02:17:09,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:17:09,182 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 02:17:09,188 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 02:17:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:17:09,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:17:09,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:17:09,341 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 02:17:09,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:17:09,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:17:09,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345113219] [2023-12-22 02:17:09,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345113219] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:17:09,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:17:09,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:17:09,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356732238] [2023-12-22 02:17:09,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:17:09,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:17:09,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:17:09,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:17:09,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:17:09,347 INFO L87 Difference]: Start difference. First operand 880 states and 1664 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 02:17:09,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:17:09,476 INFO L93 Difference]: Finished difference Result 944 states and 1766 transitions. [2023-12-22 02:17:09,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:17:09,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2023-12-22 02:17:09,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:17:09,480 INFO L225 Difference]: With dead ends: 944 [2023-12-22 02:17:09,480 INFO L226 Difference]: Without dead ends: 880 [2023-12-22 02:17:09,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 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 02:17:09,482 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 0 mSDsluCounter, 3257 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4918 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:17:09,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4918 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:17:09,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2023-12-22 02:17:09,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 880. [2023-12-22 02:17:09,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 878 states have (on average 1.825740318906606) internal successors, (1603), 879 states have internal predecessors, (1603), 0 states have call successors, (0), 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 02:17:09,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1603 transitions. [2023-12-22 02:17:09,509 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1603 transitions. Word has length 27 [2023-12-22 02:17:09,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:17:09,509 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1603 transitions. [2023-12-22 02:17:09,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 02:17:09,510 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1603 transitions. [2023-12-22 02:17:09,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-22 02:17:09,514 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:17:09,514 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] [2023-12-22 02:17:09,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 02:17:09,717 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 02:17:09,718 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:17:09,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:17:09,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1445962365, now seen corresponding path program 1 times [2023-12-22 02:17:09,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:17:09,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4502992] [2023-12-22 02:17:09,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:17:09,719 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 02:17:09,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:17:09,721 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 02:17:09,727 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 02:17:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:17:09,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:17:09,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:17:09,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:17:09,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:17:09,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:17:09,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4502992] [2023-12-22 02:17:09,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4502992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:17:09,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:17:09,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:17:09,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799685259] [2023-12-22 02:17:09,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:17:09,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:17:09,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:17:09,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:17:09,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:17:09,938 INFO L87 Difference]: Start difference. First operand 880 states and 1603 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 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 02:17:44,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:17:44,025 INFO L93 Difference]: Finished difference Result 2384 states and 4476 transitions. [2023-12-22 02:17:44,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:17:44,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2023-12-22 02:17:44,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:17:44,031 INFO L225 Difference]: With dead ends: 2384 [2023-12-22 02:17:44,031 INFO L226 Difference]: Without dead ends: 1631 [2023-12-22 02:17:44,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 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 02:17:44,033 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 906 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 2862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.9s IncrementalHoareTripleChecker+Time [2023-12-22 02:17:44,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [906 Valid, 636 Invalid, 2862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 33.9s Time] [2023-12-22 02:17:44,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2023-12-22 02:17:44,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2023-12-22 02:17:44,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1629 states have (on average 1.5850214855739717) internal successors, (2582), 1630 states have internal predecessors, (2582), 0 states have call successors, (0), 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 02:17:44,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2582 transitions. [2023-12-22 02:17:44,065 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2582 transitions. Word has length 59 [2023-12-22 02:17:44,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:17:44,065 INFO L495 AbstractCegarLoop]: Abstraction has 1631 states and 2582 transitions. [2023-12-22 02:17:44,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 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 02:17:44,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2582 transitions. [2023-12-22 02:17:44,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-22 02:17:44,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:17:44,067 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, 1, 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 02:17:44,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 02:17:44,270 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 02:17:44,271 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:17:44,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:17:44,272 INFO L85 PathProgramCache]: Analyzing trace with hash 64150534, now seen corresponding path program 1 times [2023-12-22 02:17:44,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:17:44,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937321109] [2023-12-22 02:17:44,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:17:44,273 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 02:17:44,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:17:44,274 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 02:17:44,278 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 02:17:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:17:44,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:17:44,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:17:46,275 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 02:17:46,275 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:17:46,275 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:17:46,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937321109] [2023-12-22 02:17:46,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937321109] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:17:46,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:17:46,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-22 02:17:46,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670296870] [2023-12-22 02:17:46,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:17:46,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-22 02:17:46,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:17:46,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-22 02:17:46,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-12-22 02:17:46,279 INFO L87 Difference]: Start difference. First operand 1631 states and 2582 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 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 02:17:46,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:17:46,771 INFO L93 Difference]: Finished difference Result 2180 states and 3473 transitions. [2023-12-22 02:17:46,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 02:17:46,773 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2023-12-22 02:17:46,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:17:46,781 INFO L225 Difference]: With dead ends: 2180 [2023-12-22 02:17:46,781 INFO L226 Difference]: Without dead ends: 2119 [2023-12-22 02:17:46,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-12-22 02:17:46,785 INFO L413 NwaCegarLoop]: 1594 mSDtfsCounter, 8326 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8326 SdHoareTripleChecker+Valid, 2593 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:17:46,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8326 Valid, 2593 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:17:46,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2023-12-22 02:17:46,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 1749. [2023-12-22 02:17:46,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1747 states have (on average 1.5884373211219234) internal successors, (2775), 1748 states have internal predecessors, (2775), 0 states have call successors, (0), 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 02:17:46,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2775 transitions. [2023-12-22 02:17:46,824 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2775 transitions. Word has length 87 [2023-12-22 02:17:46,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:17:46,825 INFO L495 AbstractCegarLoop]: Abstraction has 1749 states and 2775 transitions. [2023-12-22 02:17:46,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 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 02:17:46,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2775 transitions. [2023-12-22 02:17:46,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-22 02:17:46,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:17:46,827 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, 1, 1, 1, 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 02:17:46,833 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 02:17:47,031 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 02:17:47,032 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:17:47,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:17:47,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1377992502, now seen corresponding path program 1 times [2023-12-22 02:17:47,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:17:47,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1091544768] [2023-12-22 02:17:47,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:17:47,033 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 02:17:47,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:17:47,034 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 02:17:47,035 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 02:17:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:17:47,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:17:47,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:17:47,245 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 02:17:47,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:17:47,245 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:17:47,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1091544768] [2023-12-22 02:17:47,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1091544768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:17:47,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:17:47,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:17:47,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399049615] [2023-12-22 02:17:47,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:17:47,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:17:47,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:17:47,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:17:47,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:17:47,246 INFO L87 Difference]: Start difference. First operand 1749 states and 2775 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 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 02:17:47,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:17:47,312 INFO L93 Difference]: Finished difference Result 2091 states and 3331 transitions. [2023-12-22 02:17:47,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:17:47,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2023-12-22 02:17:47,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:17:47,318 INFO L225 Difference]: With dead ends: 2091 [2023-12-22 02:17:47,318 INFO L226 Difference]: Without dead ends: 1912 [2023-12-22 02:17:47,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 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 02:17:47,320 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 1506 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:17:47,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1687 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:17:47,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2023-12-22 02:17:47,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1907. [2023-12-22 02:17:47,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1907 states, 1905 states have (on average 1.588976377952756) internal successors, (3027), 1906 states have internal predecessors, (3027), 0 states have call successors, (0), 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 02:17:47,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 3027 transitions. [2023-12-22 02:17:47,353 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 3027 transitions. Word has length 89 [2023-12-22 02:17:47,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:17:47,355 INFO L495 AbstractCegarLoop]: Abstraction has 1907 states and 3027 transitions. [2023-12-22 02:17:47,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 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 02:17:47,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 3027 transitions. [2023-12-22 02:17:47,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-22 02:17:47,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:17:47,361 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, 1, 1, 1, 1, 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 02:17:47,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-22 02:17:47,564 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 02:17:47,565 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:17:47,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:17:47,565 INFO L85 PathProgramCache]: Analyzing trace with hash -294342910, now seen corresponding path program 1 times [2023-12-22 02:17:47,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:17:47,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487247099] [2023-12-22 02:17:47,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:17:47,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:17:47,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:17:47,567 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:17:47,569 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 02:17:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:17:47,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:17:47,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:17:47,693 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 02:17:47,694 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:17:47,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:17:47,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487247099] [2023-12-22 02:17:47,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487247099] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:17:47,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:17:47,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:17:47,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106740583] [2023-12-22 02:17:47,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:17:47,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:17:47,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:17:47,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:17:47,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:17:47,695 INFO L87 Difference]: Start difference. First operand 1907 states and 3027 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 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 02:17:47,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:17:47,764 INFO L93 Difference]: Finished difference Result 1921 states and 3044 transitions. [2023-12-22 02:17:47,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:17:47,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2023-12-22 02:17:47,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:17:47,772 INFO L225 Difference]: With dead ends: 1921 [2023-12-22 02:17:47,772 INFO L226 Difference]: Without dead ends: 1919 [2023-12-22 02:17:47,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 87 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 02:17:47,773 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 1 mSDsluCounter, 3190 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4789 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 02:17:47,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4789 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:17:47,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2023-12-22 02:17:47,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1915. [2023-12-22 02:17:47,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1915 states, 1913 states have (on average 1.5859905906952432) internal successors, (3034), 1914 states have internal predecessors, (3034), 0 states have call successors, (0), 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 02:17:47,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 3034 transitions. [2023-12-22 02:17:47,807 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 3034 transitions. Word has length 90 [2023-12-22 02:17:47,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:17:47,807 INFO L495 AbstractCegarLoop]: Abstraction has 1915 states and 3034 transitions. [2023-12-22 02:17:47,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 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 02:17:47,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 3034 transitions. [2023-12-22 02:17:47,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:17:47,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:17:47,808 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, 1, 1, 1, 1, 1, 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 02:17:47,812 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 02:17:48,012 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 02:17:48,013 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:17:48,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:17:48,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1953030514, now seen corresponding path program 1 times [2023-12-22 02:17:48,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:17:48,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605669745] [2023-12-22 02:17:48,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:17:48,014 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:17:48,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:17:48,015 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:17:48,036 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 02:17:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:17:48,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:17:48,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:17:48,216 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 02:17:48,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:17:48,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:17:48,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605669745] [2023-12-22 02:17:48,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605669745] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:17:48,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:17:48,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:17:48,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354228526] [2023-12-22 02:17:48,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:17:48,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:17:48,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:17:48,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:17:48,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:17:48,218 INFO L87 Difference]: Start difference. First operand 1915 states and 3034 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 02:17:48,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:17:48,260 INFO L93 Difference]: Finished difference Result 2581 states and 4094 transitions. [2023-12-22 02:17:48,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:17:48,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-22 02:17:48,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:17:48,268 INFO L225 Difference]: With dead ends: 2581 [2023-12-22 02:17:48,268 INFO L226 Difference]: Without dead ends: 2236 [2023-12-22 02:17:48,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 02:17:48,270 INFO L413 NwaCegarLoop]: 1675 mSDtfsCounter, 1525 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1778 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 02:17:48,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 1778 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:17:48,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2023-12-22 02:17:48,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2234. [2023-12-22 02:17:48,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2234 states, 2232 states have (on average 1.5842293906810037) internal successors, (3536), 2233 states have internal predecessors, (3536), 0 states have call successors, (0), 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 02:17:48,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2234 states to 2234 states and 3536 transitions. [2023-12-22 02:17:48,310 INFO L78 Accepts]: Start accepts. Automaton has 2234 states and 3536 transitions. Word has length 91 [2023-12-22 02:17:48,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:17:48,310 INFO L495 AbstractCegarLoop]: Abstraction has 2234 states and 3536 transitions. [2023-12-22 02:17:48,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 02:17:48,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2234 states and 3536 transitions. [2023-12-22 02:17:48,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:17:48,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:17:48,311 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, 1, 1, 1, 1, 1, 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 02:17:48,317 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 02:17:48,515 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 02:17:48,516 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:17:48,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:17:48,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1197646450, now seen corresponding path program 1 times [2023-12-22 02:17:48,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:17:48,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [811267934] [2023-12-22 02:17:48,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:17:48,517 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 02:17:48,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:17:48,518 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 02:17:48,552 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 02:17:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:17:48,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:17:48,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:17:48,750 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 02:17:48,750 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:17:48,750 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:17:48,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [811267934] [2023-12-22 02:17:48,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [811267934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:17:48,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:17:48,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:17:48,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943402067] [2023-12-22 02:17:48,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:17:48,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:17:48,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:17:48,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:17:48,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:17:48,751 INFO L87 Difference]: Start difference. First operand 2234 states and 3536 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 02:17:48,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:17:48,804 INFO L93 Difference]: Finished difference Result 3514 states and 5558 transitions. [2023-12-22 02:17:48,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:17:48,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-22 02:17:48,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:17:48,813 INFO L225 Difference]: With dead ends: 3514 [2023-12-22 02:17:48,813 INFO L226 Difference]: Without dead ends: 2850 [2023-12-22 02:17:48,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 02:17:48,818 INFO L413 NwaCegarLoop]: 1673 mSDtfsCounter, 1523 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1780 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 02:17:48,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1780 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:17:48,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2023-12-22 02:17:48,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 2848. [2023-12-22 02:17:48,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2846 states have (on average 1.578355586788475) internal successors, (4492), 2847 states have internal predecessors, (4492), 0 states have call successors, (0), 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 02:17:48,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 4492 transitions. [2023-12-22 02:17:48,869 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 4492 transitions. Word has length 91 [2023-12-22 02:17:48,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:17:48,869 INFO L495 AbstractCegarLoop]: Abstraction has 2848 states and 4492 transitions. [2023-12-22 02:17:48,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 02:17:48,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 4492 transitions. [2023-12-22 02:17:48,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:17:48,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:17:48,870 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, 1, 1, 1, 1, 1, 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 02:17:48,877 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 02:17:49,074 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 02:17:49,075 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:17:49,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:17:49,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1876616306, now seen corresponding path program 1 times [2023-12-22 02:17:49,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:17:49,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367687293] [2023-12-22 02:17:49,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:17:49,076 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 02:17:49,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:17:49,077 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 02:17:49,108 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 02:17:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:17:49,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:17:49,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:17:49,304 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 02:17:49,305 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:17:49,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:17:49,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367687293] [2023-12-22 02:17:49,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1367687293] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:17:49,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:17:49,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:17:49,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263281481] [2023-12-22 02:17:49,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:17:49,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:17:49,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:17:49,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:17:49,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:17:49,306 INFO L87 Difference]: Start difference. First operand 2848 states and 4492 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 02:17:49,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:17:49,372 INFO L93 Difference]: Finished difference Result 5308 states and 8342 transitions. [2023-12-22 02:17:49,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:17:49,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-22 02:17:49,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:17:49,384 INFO L225 Difference]: With dead ends: 5308 [2023-12-22 02:17:49,384 INFO L226 Difference]: Without dead ends: 4030 [2023-12-22 02:17:49,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 02:17:49,389 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 1519 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1776 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 02:17:49,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1776 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:17:49,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4030 states. [2023-12-22 02:17:49,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4030 to 4028. [2023-12-22 02:17:49,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4028 states, 4026 states have (on average 1.566815697963239) internal successors, (6308), 4027 states have internal predecessors, (6308), 0 states have call successors, (0), 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 02:17:49,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4028 states to 4028 states and 6308 transitions. [2023-12-22 02:17:49,470 INFO L78 Accepts]: Start accepts. Automaton has 4028 states and 6308 transitions. Word has length 91 [2023-12-22 02:17:49,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:17:49,470 INFO L495 AbstractCegarLoop]: Abstraction has 4028 states and 6308 transitions. [2023-12-22 02:17:49,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 02:17:49,470 INFO L276 IsEmpty]: Start isEmpty. Operand 4028 states and 6308 transitions. [2023-12-22 02:17:49,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:17:49,471 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:17:49,471 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, 1, 1, 1, 1, 1, 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 02:17:49,477 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 02:17:49,675 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 02:17:49,676 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:17:49,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:17:49,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1836672370, now seen corresponding path program 1 times [2023-12-22 02:17:49,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:17:49,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099698144] [2023-12-22 02:17:49,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:17:49,677 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 02:17:49,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:17:49,678 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 02:17:49,690 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 02:17:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:17:49,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:17:49,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:17:49,878 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 02:17:49,878 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:17:49,878 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:17:49,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1099698144] [2023-12-22 02:17:49,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1099698144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:17:49,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:17:49,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:17:49,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772450765] [2023-12-22 02:17:49,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:17:49,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:17:49,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:17:49,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:17:49,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:17:49,880 INFO L87 Difference]: Start difference. First operand 4028 states and 6308 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 02:17:49,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:17:49,955 INFO L93 Difference]: Finished difference Result 8752 states and 13622 transitions. [2023-12-22 02:17:49,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:17:49,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-22 02:17:49,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:17:49,984 INFO L225 Difference]: With dead ends: 8752 [2023-12-22 02:17:49,984 INFO L226 Difference]: Without dead ends: 6294 [2023-12-22 02:17:49,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 02:17:49,990 INFO L413 NwaCegarLoop]: 1659 mSDtfsCounter, 1517 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1778 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 02:17:49,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1778 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:17:49,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6294 states. [2023-12-22 02:17:50,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6294 to 6292. [2023-12-22 02:17:50,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 6290 states have (on average 1.5497615262321145) internal successors, (9748), 6291 states have internal predecessors, (9748), 0 states have call successors, (0), 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 02:17:50,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 9748 transitions. [2023-12-22 02:17:50,126 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 9748 transitions. Word has length 91 [2023-12-22 02:17:50,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:17:50,127 INFO L495 AbstractCegarLoop]: Abstraction has 6292 states and 9748 transitions. [2023-12-22 02:17:50,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 02:17:50,127 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 9748 transitions. [2023-12-22 02:17:50,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:17:50,129 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:17:50,129 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, 1, 1, 1, 1, 1, 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 02:17:50,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-22 02:17:50,333 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 02:17:50,333 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:17:50,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:17:50,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1573594994, now seen corresponding path program 1 times [2023-12-22 02:17:50,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:17:50,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414285626] [2023-12-22 02:17:50,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:17:50,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:17:50,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:17:50,335 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 02:17:50,364 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 02:17:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:17:50,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:17:50,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:17:50,514 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 02:17:50,514 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:17:50,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:17:50,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414285626] [2023-12-22 02:17:50,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [414285626] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:17:50,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:17:50,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:17:50,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317216937] [2023-12-22 02:17:50,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:17:50,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:17:50,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:17:50,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:17:50,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:17:50,515 INFO L87 Difference]: Start difference. First operand 6292 states and 9748 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 02:17:50,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:17:50,642 INFO L93 Difference]: Finished difference Result 15352 states and 23606 transitions. [2023-12-22 02:17:50,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:17:50,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-22 02:17:50,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:17:50,660 INFO L225 Difference]: With dead ends: 15352 [2023-12-22 02:17:50,661 INFO L226 Difference]: Without dead ends: 10630 [2023-12-22 02:17:50,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 02:17:50,665 INFO L413 NwaCegarLoop]: 1647 mSDtfsCounter, 1513 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1774 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 02:17:50,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1774 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:17:50,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10630 states. [2023-12-22 02:17:50,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10630 to 10628. [2023-12-22 02:17:50,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10628 states, 10626 states have (on average 1.528703180877094) internal successors, (16244), 10627 states have internal predecessors, (16244), 0 states have call successors, (0), 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 02:17:50,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10628 states to 10628 states and 16244 transitions. [2023-12-22 02:17:50,830 INFO L78 Accepts]: Start accepts. Automaton has 10628 states and 16244 transitions. Word has length 91 [2023-12-22 02:17:50,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:17:50,830 INFO L495 AbstractCegarLoop]: Abstraction has 10628 states and 16244 transitions. [2023-12-22 02:17:50,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 02:17:50,830 INFO L276 IsEmpty]: Start isEmpty. Operand 10628 states and 16244 transitions. [2023-12-22 02:17:50,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:17:50,831 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:17:50,831 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, 1, 1, 1, 1, 1, 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 02:17:50,834 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 02:17:51,034 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 02:17:51,035 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:17:51,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:17:51,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1832638862, now seen corresponding path program 1 times [2023-12-22 02:17:51,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:17:51,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191266734] [2023-12-22 02:17:51,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:17:51,036 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 02:17:51,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:17:51,037 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 02:17:51,037 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 02:17:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:17:51,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:17:51,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:17:51,214 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 02:17:51,215 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:17:51,215 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:17:51,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [191266734] [2023-12-22 02:17:51,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [191266734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:17:51,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:17:51,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:17:51,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760649475] [2023-12-22 02:17:51,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:17:51,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:17:51,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:17:51,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:17:51,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:17:51,216 INFO L87 Difference]: Start difference. First operand 10628 states and 16244 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 02:17:51,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:17:51,430 INFO L93 Difference]: Finished difference Result 27976 states and 42422 transitions. [2023-12-22 02:17:51,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:17:51,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-22 02:17:51,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:17:51,459 INFO L225 Difference]: With dead ends: 27976 [2023-12-22 02:17:51,460 INFO L226 Difference]: Without dead ends: 18918 [2023-12-22 02:17:51,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 02:17:51,468 INFO L413 NwaCegarLoop]: 1657 mSDtfsCounter, 1515 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1780 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 02:17:51,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1780 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:17:51,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18918 states. [2023-12-22 02:17:51,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18918 to 18916. [2023-12-22 02:17:51,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18916 states, 18914 states have (on average 1.5051284762609707) internal successors, (28468), 18915 states have internal predecessors, (28468), 0 states have call successors, (0), 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 02:17:51,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18916 states to 18916 states and 28468 transitions. [2023-12-22 02:17:51,759 INFO L78 Accepts]: Start accepts. Automaton has 18916 states and 28468 transitions. Word has length 91 [2023-12-22 02:17:51,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:17:51,760 INFO L495 AbstractCegarLoop]: Abstraction has 18916 states and 28468 transitions. [2023-12-22 02:17:51,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 02:17:51,760 INFO L276 IsEmpty]: Start isEmpty. Operand 18916 states and 28468 transitions. [2023-12-22 02:17:51,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:17:51,761 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:17:51,761 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, 1, 1, 1, 1, 1, 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 02:17:51,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-22 02:17:51,964 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 02:17:51,964 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:17:51,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:17:51,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1608033138, now seen corresponding path program 1 times [2023-12-22 02:17:51,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:17:51,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030201408] [2023-12-22 02:17:51,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:17:51,965 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 02:17:51,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:17:51,966 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 02:17:51,967 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 (14)] Waiting until timeout for monitored process [2023-12-22 02:17:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:17:52,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:17:52,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:17:52,156 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 02:17:52,157 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:17:52,157 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:17:52,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030201408] [2023-12-22 02:17:52,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030201408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:17:52,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:17:52,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:17:52,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008392428] [2023-12-22 02:17:52,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:17:52,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:17:52,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:17:52,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:17:52,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:17:52,158 INFO L87 Difference]: Start difference. First operand 18916 states and 28468 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 02:17:52,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:17:52,475 INFO L93 Difference]: Finished difference Result 52072 states and 77750 transitions. [2023-12-22 02:17:52,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:17:52,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-22 02:17:52,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:17:52,535 INFO L225 Difference]: With dead ends: 52072 [2023-12-22 02:17:52,536 INFO L226 Difference]: Without dead ends: 34726 [2023-12-22 02:17:52,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 02:17:52,558 INFO L413 NwaCegarLoop]: 1671 mSDtfsCounter, 1521 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 1782 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 02:17:52,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1782 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:17:52,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34726 states. [2023-12-22 02:17:53,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34726 to 34724. [2023-12-22 02:17:53,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34724 states, 34722 states have (on average 1.4797534704222106) internal successors, (51380), 34723 states have internal predecessors, (51380), 0 states have call successors, (0), 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 02:17:53,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34724 states to 34724 states and 51380 transitions. [2023-12-22 02:17:53,271 INFO L78 Accepts]: Start accepts. Automaton has 34724 states and 51380 transitions. Word has length 91 [2023-12-22 02:17:53,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:17:53,271 INFO L495 AbstractCegarLoop]: Abstraction has 34724 states and 51380 transitions. [2023-12-22 02:17:53,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 02:17:53,272 INFO L276 IsEmpty]: Start isEmpty. Operand 34724 states and 51380 transitions. [2023-12-22 02:17:53,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-22 02:17:53,272 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:17:53,272 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, 1, 1, 1, 1, 1, 1, 1, 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 02:17:53,279 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 02:17:53,476 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 02:17:53,477 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:17:53,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:17:53,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1270174003, now seen corresponding path program 1 times [2023-12-22 02:17:53,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:17:53,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913684933] [2023-12-22 02:17:53,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:17:53,478 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 02:17:53,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:17:53,479 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 02:17:53,491 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 02:17:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:17:53,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:17:53,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:17:53,669 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 02:17:53,669 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:17:53,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:17:53,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913684933] [2023-12-22 02:17:53,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913684933] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:17:53,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:17:53,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:17:53,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362340466] [2023-12-22 02:17:53,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:17:53,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:17:53,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:17:53,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:17:53,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:17:53,671 INFO L87 Difference]: Start difference. First operand 34724 states and 51380 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 02:17:54,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:17:54,185 INFO L93 Difference]: Finished difference Result 68523 states and 102074 transitions. [2023-12-22 02:17:54,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:17:54,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2023-12-22 02:17:54,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:17:54,257 INFO L225 Difference]: With dead ends: 68523 [2023-12-22 02:17:54,258 INFO L226 Difference]: Without dead ends: 50472 [2023-12-22 02:17:54,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 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 02:17:54,276 INFO L413 NwaCegarLoop]: 1680 mSDtfsCounter, 1524 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1779 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 02:17:54,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1779 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:17:54,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50472 states. [2023-12-22 02:17:55,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50472 to 50470. [2023-12-22 02:17:55,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50470 states, 50468 states have (on average 1.4746373939922326) internal successors, (74422), 50469 states have internal predecessors, (74422), 0 states have call successors, (0), 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 02:17:55,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50470 states to 50470 states and 74422 transitions. [2023-12-22 02:17:55,290 INFO L78 Accepts]: Start accepts. Automaton has 50470 states and 74422 transitions. Word has length 93 [2023-12-22 02:17:55,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:17:55,290 INFO L495 AbstractCegarLoop]: Abstraction has 50470 states and 74422 transitions. [2023-12-22 02:17:55,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 02:17:55,290 INFO L276 IsEmpty]: Start isEmpty. Operand 50470 states and 74422 transitions. [2023-12-22 02:17:55,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-22 02:17:55,297 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:17:55,298 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:17:55,304 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 02:17:55,501 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 02:17:55,502 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:17:55,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:17:55,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1909067792, now seen corresponding path program 1 times [2023-12-22 02:17:55,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:17:55,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902881223] [2023-12-22 02:17:55,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:17:55,503 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 02:17:55,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:17:55,504 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 02:17:55,505 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 02:17:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:17:55,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:17:55,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:17:55,673 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:17:55,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:17:55,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:17:55,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902881223] [2023-12-22 02:17:55,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1902881223] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:17:55,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:17:55,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:17:55,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403120574] [2023-12-22 02:17:55,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:17:55,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:17:55,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:17:55,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:17:55,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:17:55,675 INFO L87 Difference]: Start difference. First operand 50470 states and 74422 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 02:17:56,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:17:56,256 INFO L93 Difference]: Finished difference Result 84291 states and 124754 transitions. [2023-12-22 02:17:56,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:17:56,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2023-12-22 02:17:56,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:17:56,303 INFO L225 Difference]: With dead ends: 84291 [2023-12-22 02:17:56,303 INFO L226 Difference]: Without dead ends: 35393 [2023-12-22 02:17:56,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 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 02:17:56,338 INFO L413 NwaCegarLoop]: 1664 mSDtfsCounter, 74 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 3250 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 02:17:56,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 3250 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:17:56,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35393 states. [2023-12-22 02:17:56,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35393 to 35391. [2023-12-22 02:17:56,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35391 states, 35389 states have (on average 1.4815620673090508) internal successors, (52431), 35390 states have internal predecessors, (52431), 0 states have call successors, (0), 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 02:17:57,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35391 states to 35391 states and 52431 transitions. [2023-12-22 02:17:57,039 INFO L78 Accepts]: Start accepts. Automaton has 35391 states and 52431 transitions. Word has length 115 [2023-12-22 02:17:57,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:17:57,039 INFO L495 AbstractCegarLoop]: Abstraction has 35391 states and 52431 transitions. [2023-12-22 02:17:57,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 02:17:57,039 INFO L276 IsEmpty]: Start isEmpty. Operand 35391 states and 52431 transitions. [2023-12-22 02:17:57,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-22 02:17:57,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:17:57,043 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:17:57,051 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 (16)] Ended with exit code 0 [2023-12-22 02:17:57,246 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 02:17:57,247 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:17:57,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:17:57,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1894902325, now seen corresponding path program 1 times [2023-12-22 02:17:57,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:17:57,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663880204] [2023-12-22 02:17:57,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:17:57,248 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 02:17:57,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:17:57,352 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 02:17:57,354 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 02:17:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:17:57,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:17:57,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:17:58,570 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:17:58,570 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:17:59,093 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:17:59,093 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:17:59,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663880204] [2023-12-22 02:17:59,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663880204] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:17:59,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:17:59,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:17:59,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452933933] [2023-12-22 02:17:59,094 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:17:59,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:17:59,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:17:59,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:17:59,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:17:59,095 INFO L87 Difference]: Start difference. First operand 35391 states and 52431 transitions. Second operand has 16 states, 16 states have (on average 13.375) internal successors, (214), 16 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 02:18:02,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:18:02,803 INFO L93 Difference]: Finished difference Result 126217 states and 185108 transitions. [2023-12-22 02:18:02,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 02:18:02,803 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.375) internal successors, (214), 16 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 117 [2023-12-22 02:18:02,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:18:02,929 INFO L225 Difference]: With dead ends: 126217 [2023-12-22 02:18:02,929 INFO L226 Difference]: Without dead ends: 92423 [2023-12-22 02:18:02,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-22 02:18:02,960 INFO L413 NwaCegarLoop]: 1649 mSDtfsCounter, 5364 mSDsluCounter, 12975 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5364 SdHoareTripleChecker+Valid, 14624 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-22 02:18:02,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5364 Valid, 14624 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-22 02:18:03,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92423 states. [2023-12-22 02:18:04,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92423 to 69183. [2023-12-22 02:18:04,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69183 states, 69181 states have (on average 1.4739162486809962) internal successors, (101967), 69182 states have internal predecessors, (101967), 0 states have call successors, (0), 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 02:18:04,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69183 states to 69183 states and 101967 transitions. [2023-12-22 02:18:04,631 INFO L78 Accepts]: Start accepts. Automaton has 69183 states and 101967 transitions. Word has length 117 [2023-12-22 02:18:04,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:18:04,631 INFO L495 AbstractCegarLoop]: Abstraction has 69183 states and 101967 transitions. [2023-12-22 02:18:04,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.375) internal successors, (214), 16 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 02:18:04,631 INFO L276 IsEmpty]: Start isEmpty. Operand 69183 states and 101967 transitions. [2023-12-22 02:18:04,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-22 02:18:04,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:18:04,636 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:18:04,640 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 02:18:04,836 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 02:18:04,836 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:18:04,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:18:04,837 INFO L85 PathProgramCache]: Analyzing trace with hash -786972807, now seen corresponding path program 1 times [2023-12-22 02:18:04,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:18:04,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2108343417] [2023-12-22 02:18:04,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:18:04,837 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 02:18:04,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:18:04,838 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 02:18:04,842 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 02:18:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:18:04,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:18:04,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:18:05,022 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:18:05,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:18:05,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:18:05,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2108343417] [2023-12-22 02:18:05,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2108343417] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:18:05,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:18:05,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:18:05,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181774386] [2023-12-22 02:18:05,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:18:05,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:18:05,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:18:05,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:18:05,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:18:05,024 INFO L87 Difference]: Start difference. First operand 69183 states and 101967 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 02:18:05,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:18:05,760 INFO L93 Difference]: Finished difference Result 102979 states and 151697 transitions. [2023-12-22 02:18:05,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:18:05,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2023-12-22 02:18:05,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:18:05,804 INFO L225 Difference]: With dead ends: 102979 [2023-12-22 02:18:05,804 INFO L226 Difference]: Without dead ends: 35393 [2023-12-22 02:18:05,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 02:18:05,827 INFO L413 NwaCegarLoop]: 1657 mSDtfsCounter, 68 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 3235 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 02:18:05,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 3235 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:18:05,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35393 states. [2023-12-22 02:18:06,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35393 to 35391. [2023-12-22 02:18:06,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35391 states, 35389 states have (on average 1.4652858232784198) internal successors, (51855), 35390 states have internal predecessors, (51855), 0 states have call successors, (0), 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 02:18:06,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35391 states to 35391 states and 51855 transitions. [2023-12-22 02:18:06,776 INFO L78 Accepts]: Start accepts. Automaton has 35391 states and 51855 transitions. Word has length 119 [2023-12-22 02:18:06,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:18:06,777 INFO L495 AbstractCegarLoop]: Abstraction has 35391 states and 51855 transitions. [2023-12-22 02:18:06,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 02:18:06,777 INFO L276 IsEmpty]: Start isEmpty. Operand 35391 states and 51855 transitions. [2023-12-22 02:18:06,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-22 02:18:06,779 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:18:06,779 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:18:06,794 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 02:18:06,995 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 02:18:06,995 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:18:06,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:18:06,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1552079672, now seen corresponding path program 1 times [2023-12-22 02:18:06,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:18:06,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130818197] [2023-12-22 02:18:06,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:18:06,996 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 02:18:06,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:18:06,997 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 02:18:07,000 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 02:18:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:18:07,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:18:07,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:18:08,105 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:18:08,105 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:18:08,585 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:18:08,585 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:18:08,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130818197] [2023-12-22 02:18:08,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130818197] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:18:08,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:18:08,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:18:08,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883418903] [2023-12-22 02:18:08,586 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:18:08,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:18:08,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:18:08,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:18:08,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:18:08,587 INFO L87 Difference]: Start difference. First operand 35391 states and 51855 transitions. Second operand has 16 states, 16 states have (on average 13.875) internal successors, (222), 16 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 02:18:09,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:18:09,939 INFO L93 Difference]: Finished difference Result 69965 states and 101984 transitions. [2023-12-22 02:18:09,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 02:18:09,940 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.875) internal successors, (222), 16 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 120 [2023-12-22 02:18:09,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:18:09,977 INFO L225 Difference]: With dead ends: 69965 [2023-12-22 02:18:09,977 INFO L226 Difference]: Without dead ends: 36171 [2023-12-22 02:18:09,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2023-12-22 02:18:09,987 INFO L413 NwaCegarLoop]: 1537 mSDtfsCounter, 1697 mSDsluCounter, 9288 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 10825 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:18:09,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 10825 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:18:10,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36171 states. [2023-12-22 02:18:10,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36171 to 35401. [2023-12-22 02:18:10,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35401 states, 35399 states have (on average 1.4652108816633238) internal successors, (51867), 35400 states have internal predecessors, (51867), 0 states have call successors, (0), 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 02:18:10,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35401 states to 35401 states and 51867 transitions. [2023-12-22 02:18:10,822 INFO L78 Accepts]: Start accepts. Automaton has 35401 states and 51867 transitions. Word has length 120 [2023-12-22 02:18:10,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:18:10,822 INFO L495 AbstractCegarLoop]: Abstraction has 35401 states and 51867 transitions. [2023-12-22 02:18:10,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.875) internal successors, (222), 16 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 02:18:10,822 INFO L276 IsEmpty]: Start isEmpty. Operand 35401 states and 51867 transitions. [2023-12-22 02:18:10,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-22 02:18:10,825 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:18:10,825 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:18:10,828 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 (19)] Forceful destruction successful, exit code 0 [2023-12-22 02:18:11,025 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 02:18:11,025 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:18:11,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:18:11,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1692705544, now seen corresponding path program 1 times [2023-12-22 02:18:11,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:18:11,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136693004] [2023-12-22 02:18:11,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:18:11,026 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 02:18:11,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:18:11,027 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 02:18:11,028 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 02:18:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:18:11,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:18:11,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:18:11,215 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:18:11,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:18:11,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:18:11,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136693004] [2023-12-22 02:18:11,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136693004] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:18:11,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:18:11,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:18:11,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472682478] [2023-12-22 02:18:11,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:18:11,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:18:11,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:18:11,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:18:11,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:18:11,217 INFO L87 Difference]: Start difference. First operand 35401 states and 51867 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 02:18:11,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:18:11,491 INFO L93 Difference]: Finished difference Result 52301 states and 76541 transitions. [2023-12-22 02:18:11,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:18:11,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2023-12-22 02:18:11,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:18:11,513 INFO L225 Difference]: With dead ends: 52301 [2023-12-22 02:18:11,513 INFO L226 Difference]: Without dead ends: 18507 [2023-12-22 02:18:11,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 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 02:18:11,534 INFO L413 NwaCegarLoop]: 1650 mSDtfsCounter, 64 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 3220 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 02:18:11,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 3220 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:18:11,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18507 states. [2023-12-22 02:18:11,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18507 to 18505. [2023-12-22 02:18:11,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18505 states, 18503 states have (on average 1.4593849646003352) internal successors, (27003), 18504 states have internal predecessors, (27003), 0 states have call successors, (0), 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 02:18:11,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18505 states to 18505 states and 27003 transitions. [2023-12-22 02:18:11,982 INFO L78 Accepts]: Start accepts. Automaton has 18505 states and 27003 transitions. Word has length 122 [2023-12-22 02:18:11,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:18:11,982 INFO L495 AbstractCegarLoop]: Abstraction has 18505 states and 27003 transitions. [2023-12-22 02:18:11,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 02:18:11,983 INFO L276 IsEmpty]: Start isEmpty. Operand 18505 states and 27003 transitions. [2023-12-22 02:18:11,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-22 02:18:11,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:18:11,984 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:18:11,992 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 02:18:12,188 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 02:18:12,188 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:18:12,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:18:12,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1868081289, now seen corresponding path program 1 times [2023-12-22 02:18:12,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:18:12,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619331578] [2023-12-22 02:18:12,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:18:12,189 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 02:18:12,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:18:12,190 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 02:18:12,191 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 02:18:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:18:12,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:18:12,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:18:13,168 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:18:13,168 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:18:13,537 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:18:13,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:18:13,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619331578] [2023-12-22 02:18:13,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [619331578] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:18:13,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:18:13,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:18:13,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967423120] [2023-12-22 02:18:13,538 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:18:13,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:18:13,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:18:13,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:18:13,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:18:13,539 INFO L87 Difference]: Start difference. First operand 18505 states and 27003 transitions. Second operand has 16 states, 16 states have (on average 14.375) internal successors, (230), 16 states have internal predecessors, (230), 0 states have call successors, (0), 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 02:18:15,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:18:15,667 INFO L93 Difference]: Finished difference Result 65553 states and 94591 transitions. [2023-12-22 02:18:15,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 02:18:15,668 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.375) internal successors, (230), 16 states have internal predecessors, (230), 0 states have call successors, (0), 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 123 [2023-12-22 02:18:15,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:18:15,718 INFO L225 Difference]: With dead ends: 65553 [2023-12-22 02:18:15,719 INFO L226 Difference]: Without dead ends: 48655 [2023-12-22 02:18:15,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 02:18:15,739 INFO L413 NwaCegarLoop]: 1673 mSDtfsCounter, 3966 mSDsluCounter, 11260 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3966 SdHoareTripleChecker+Valid, 12933 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:18:15,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3966 Valid, 12933 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-22 02:18:15,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48655 states. [2023-12-22 02:18:16,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48655 to 36553. [2023-12-22 02:18:16,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36553 states, 36551 states have (on average 1.4347897458345873) internal successors, (52443), 36552 states have internal predecessors, (52443), 0 states have call successors, (0), 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 02:18:16,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36553 states to 36553 states and 52443 transitions. [2023-12-22 02:18:16,517 INFO L78 Accepts]: Start accepts. Automaton has 36553 states and 52443 transitions. Word has length 123 [2023-12-22 02:18:16,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:18:16,517 INFO L495 AbstractCegarLoop]: Abstraction has 36553 states and 52443 transitions. [2023-12-22 02:18:16,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.375) internal successors, (230), 16 states have internal predecessors, (230), 0 states have call successors, (0), 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 02:18:16,517 INFO L276 IsEmpty]: Start isEmpty. Operand 36553 states and 52443 transitions. [2023-12-22 02:18:16,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-22 02:18:16,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:18:16,520 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:18:16,526 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 02:18:16,723 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 02:18:16,724 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:18:16,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:18:16,724 INFO L85 PathProgramCache]: Analyzing trace with hash 661252709, now seen corresponding path program 1 times [2023-12-22 02:18:16,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:18:16,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438586606] [2023-12-22 02:18:16,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:18:16,725 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 02:18:16,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:18:16,726 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 02:18:16,726 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 (22)] Waiting until timeout for monitored process [2023-12-22 02:18:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:18:16,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:18:16,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:18:16,908 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:18:16,908 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:18:16,908 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:18:16,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438586606] [2023-12-22 02:18:16,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [438586606] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:18:16,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:18:16,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:18:16,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879639483] [2023-12-22 02:18:16,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:18:16,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:18:16,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:18:16,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:18:16,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:18:16,910 INFO L87 Difference]: Start difference. First operand 36553 states and 52443 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 02:18:17,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:18:17,329 INFO L93 Difference]: Finished difference Result 54029 states and 77405 transitions. [2023-12-22 02:18:17,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:18:17,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2023-12-22 02:18:17,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:18:17,350 INFO L225 Difference]: With dead ends: 54029 [2023-12-22 02:18:17,350 INFO L226 Difference]: Without dead ends: 19083 [2023-12-22 02:18:17,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 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 02:18:17,368 INFO L413 NwaCegarLoop]: 1643 mSDtfsCounter, 60 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3205 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 02:18:17,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3205 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:18:17,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19083 states. [2023-12-22 02:18:17,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19083 to 19081. [2023-12-22 02:18:17,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19081 states, 19079 states have (on average 1.430420881597568) internal successors, (27291), 19080 states have internal predecessors, (27291), 0 states have call successors, (0), 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 02:18:17,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19081 states to 19081 states and 27291 transitions. [2023-12-22 02:18:17,709 INFO L78 Accepts]: Start accepts. Automaton has 19081 states and 27291 transitions. Word has length 125 [2023-12-22 02:18:17,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:18:17,710 INFO L495 AbstractCegarLoop]: Abstraction has 19081 states and 27291 transitions. [2023-12-22 02:18:17,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 02:18:17,710 INFO L276 IsEmpty]: Start isEmpty. Operand 19081 states and 27291 transitions. [2023-12-22 02:18:17,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-22 02:18:17,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:18:17,711 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:18:17,715 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 02:18:17,915 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 02:18:17,915 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:18:17,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:18:17,915 INFO L85 PathProgramCache]: Analyzing trace with hash -452572212, now seen corresponding path program 1 times [2023-12-22 02:18:17,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:18:17,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871148043] [2023-12-22 02:18:17,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:18:17,916 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 02:18:17,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:18:17,917 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 02:18:17,917 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 02:18:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:18:18,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:18:18,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:18:19,042 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:18:19,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:18:19,430 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:18:19,430 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:18:19,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871148043] [2023-12-22 02:18:19,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871148043] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:18:19,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:18:19,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:18:19,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345899886] [2023-12-22 02:18:19,430 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:18:19,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:18:19,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:18:19,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:18:19,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:18:19,431 INFO L87 Difference]: Start difference. First operand 19081 states and 27291 transitions. Second operand has 16 states, 16 states have (on average 14.875) internal successors, (238), 16 states have internal predecessors, (238), 0 states have call successors, (0), 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 02:18:21,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:18:21,737 INFO L93 Difference]: Finished difference Result 66129 states and 93535 transitions. [2023-12-22 02:18:21,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 02:18:21,739 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.875) internal successors, (238), 16 states have internal predecessors, (238), 0 states have call successors, (0), 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 126 [2023-12-22 02:18:21,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:18:21,793 INFO L225 Difference]: With dead ends: 66129 [2023-12-22 02:18:21,794 INFO L226 Difference]: Without dead ends: 48655 [2023-12-22 02:18:21,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 02:18:21,818 INFO L413 NwaCegarLoop]: 1655 mSDtfsCounter, 5270 mSDsluCounter, 12822 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5270 SdHoareTripleChecker+Valid, 14477 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:18:21,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5270 Valid, 14477 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-22 02:18:21,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48655 states. [2023-12-22 02:18:22,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48655 to 37705. [2023-12-22 02:18:22,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37705 states, 37703 states have (on average 1.406227621144206) internal successors, (53019), 37704 states have internal predecessors, (53019), 0 states have call successors, (0), 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 02:18:22,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37705 states to 37705 states and 53019 transitions. [2023-12-22 02:18:22,857 INFO L78 Accepts]: Start accepts. Automaton has 37705 states and 53019 transitions. Word has length 126 [2023-12-22 02:18:22,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:18:22,857 INFO L495 AbstractCegarLoop]: Abstraction has 37705 states and 53019 transitions. [2023-12-22 02:18:22,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.875) internal successors, (238), 16 states have internal predecessors, (238), 0 states have call successors, (0), 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 02:18:22,858 INFO L276 IsEmpty]: Start isEmpty. Operand 37705 states and 53019 transitions. [2023-12-22 02:18:22,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-22 02:18:22,860 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:18:22,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:18:22,863 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 02:18:23,060 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 02:18:23,060 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:18:23,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:18:23,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1505329014, now seen corresponding path program 1 times [2023-12-22 02:18:23,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:18:23,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858861521] [2023-12-22 02:18:23,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:18:23,062 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 02:18:23,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:18:23,062 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 02:18:23,064 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 02:18:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:18:23,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:18:23,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:18:23,262 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:18:23,262 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:18:23,262 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:18:23,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858861521] [2023-12-22 02:18:23,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858861521] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:18:23,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:18:23,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:18:23,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993533458] [2023-12-22 02:18:23,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:18:23,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:18:23,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:18:23,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:18:23,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:18:23,263 INFO L87 Difference]: Start difference. First operand 37705 states and 53019 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 02:18:56,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:18:56,596 INFO L93 Difference]: Finished difference Result 40713 states and 57851 transitions. [2023-12-22 02:18:56,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:18:56,597 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 02:18:56,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:18:56,642 INFO L225 Difference]: With dead ends: 40713 [2023-12-22 02:18:56,642 INFO L226 Difference]: Without dead ends: 39209 [2023-12-22 02:18:56,653 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 02:18:56,654 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 1087 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 2862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:18:56,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 514 Invalid, 2862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 32.4s Time] [2023-12-22 02:18:56,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39209 states. [2023-12-22 02:18:57,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39209 to 39207. [2023-12-22 02:18:57,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39207 states, 39205 states have (on average 1.402627215916337) internal successors, (54990), 39206 states have internal predecessors, (54990), 0 states have call successors, (0), 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 02:18:57,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39207 states to 39207 states and 54990 transitions. [2023-12-22 02:18:57,510 INFO L78 Accepts]: Start accepts. Automaton has 39207 states and 54990 transitions. Word has length 127 [2023-12-22 02:18:57,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:18:57,510 INFO L495 AbstractCegarLoop]: Abstraction has 39207 states and 54990 transitions. [2023-12-22 02:18:57,510 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 02:18:57,510 INFO L276 IsEmpty]: Start isEmpty. Operand 39207 states and 54990 transitions. [2023-12-22 02:18:57,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-22 02:18:57,512 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:18:57,512 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:18:57,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-22 02:18:57,713 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 02:18:57,713 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:18:57,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:18:57,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1885304372, now seen corresponding path program 1 times [2023-12-22 02:18:57,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:18:57,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103464246] [2023-12-22 02:18:57,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:18:57,714 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 02:18:57,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:18:57,715 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 02:18:57,715 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 02:18:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:18:57,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:18:57,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:18:57,897 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:18:57,898 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:18:57,898 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:18:57,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103464246] [2023-12-22 02:18:57,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103464246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:18:57,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:18:57,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:18:57,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579609145] [2023-12-22 02:18:57,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:18:57,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:18:57,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:18:57,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:18:57,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:18:57,899 INFO L87 Difference]: Start difference. First operand 39207 states and 54990 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 02:18:58,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:18:58,343 INFO L93 Difference]: Finished difference Result 57259 states and 80240 transitions. [2023-12-22 02:18:58,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:18:58,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2023-12-22 02:18:58,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:18:58,366 INFO L225 Difference]: With dead ends: 57259 [2023-12-22 02:18:58,366 INFO L226 Difference]: Without dead ends: 21161 [2023-12-22 02:18:58,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 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 02:18:58,384 INFO L413 NwaCegarLoop]: 1636 mSDtfsCounter, 56 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3190 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 02:18:58,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3190 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:18:58,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21161 states. [2023-12-22 02:18:58,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21161 to 21159. [2023-12-22 02:18:58,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21159 states, 21157 states have (on average 1.396700855508815) internal successors, (29550), 21158 states have internal predecessors, (29550), 0 states have call successors, (0), 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 02:18:58,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21159 states to 21159 states and 29550 transitions. [2023-12-22 02:18:58,782 INFO L78 Accepts]: Start accepts. Automaton has 21159 states and 29550 transitions. Word has length 128 [2023-12-22 02:18:58,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:18:58,782 INFO L495 AbstractCegarLoop]: Abstraction has 21159 states and 29550 transitions. [2023-12-22 02:18:58,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 02:18:58,782 INFO L276 IsEmpty]: Start isEmpty. Operand 21159 states and 29550 transitions. [2023-12-22 02:18:58,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-22 02:18:58,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:18:58,784 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:18:58,787 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 02:18:58,984 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 02:18:58,984 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:18:58,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:18:58,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1430259491, now seen corresponding path program 1 times [2023-12-22 02:18:58,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:18:58,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796138982] [2023-12-22 02:18:58,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:18:58,985 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 02:18:58,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:18:58,986 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 02:18:58,988 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 02:18:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:18:59,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:18:59,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:18:59,919 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:18:59,919 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:19:00,304 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:19:00,304 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:19:00,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796138982] [2023-12-22 02:19:00,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796138982] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:19:00,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:19:00,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:19:00,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400290184] [2023-12-22 02:19:00,305 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:19:00,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:19:00,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:19:00,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:19:00,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:19:00,306 INFO L87 Difference]: Start difference. First operand 21159 states and 29550 transitions. Second operand has 16 states, 16 states have (on average 15.375) internal successors, (246), 16 states have internal predecessors, (246), 0 states have call successors, (0), 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 02:19:02,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:19:02,794 INFO L93 Difference]: Finished difference Result 68207 states and 94450 transitions. [2023-12-22 02:19:02,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 02:19:02,795 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.375) internal successors, (246), 16 states have internal predecessors, (246), 0 states have call successors, (0), 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 129 [2023-12-22 02:19:02,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:19:02,861 INFO L225 Difference]: With dead ends: 68207 [2023-12-22 02:19:02,861 INFO L226 Difference]: Without dead ends: 50157 [2023-12-22 02:19:02,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 02:19:02,871 INFO L413 NwaCegarLoop]: 1637 mSDtfsCounter, 6907 mSDsluCounter, 11178 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6907 SdHoareTripleChecker+Valid, 12815 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:19:02,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6907 Valid, 12815 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-22 02:19:02,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50157 states. [2023-12-22 02:19:03,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50157 to 40359. [2023-12-22 02:19:03,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40359 states, 40357 states have (on average 1.3768615110141982) internal successors, (55566), 40358 states have internal predecessors, (55566), 0 states have call successors, (0), 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 02:19:03,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40359 states to 40359 states and 55566 transitions. [2023-12-22 02:19:03,946 INFO L78 Accepts]: Start accepts. Automaton has 40359 states and 55566 transitions. Word has length 129 [2023-12-22 02:19:03,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:19:03,946 INFO L495 AbstractCegarLoop]: Abstraction has 40359 states and 55566 transitions. [2023-12-22 02:19:03,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.375) internal successors, (246), 16 states have internal predecessors, (246), 0 states have call successors, (0), 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 02:19:03,947 INFO L276 IsEmpty]: Start isEmpty. Operand 40359 states and 55566 transitions. [2023-12-22 02:19:03,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-22 02:19:03,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:19:03,949 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:19:03,956 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 (26)] Ended with exit code 0 [2023-12-22 02:19:04,152 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 02:19:04,152 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:19:04,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:19:04,153 INFO L85 PathProgramCache]: Analyzing trace with hash -35081391, now seen corresponding path program 1 times [2023-12-22 02:19:04,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:19:04,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980922846] [2023-12-22 02:19:04,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:19:04,153 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 02:19:04,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:19:04,154 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 02:19:04,155 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 02:19:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:19:04,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:19:04,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:19:04,338 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:19:04,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:19:04,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:19:04,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980922846] [2023-12-22 02:19:04,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980922846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:19:04,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:19:04,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:19:04,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155339550] [2023-12-22 02:19:04,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:19:04,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:19:04,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:19:04,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:19:04,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:19:04,339 INFO L87 Difference]: Start difference. First operand 40359 states and 55566 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 02:19:04,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:19:04,744 INFO L93 Difference]: Finished difference Result 58987 states and 81104 transitions. [2023-12-22 02:19:04,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:19:04,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2023-12-22 02:19:04,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:19:04,770 INFO L225 Difference]: With dead ends: 58987 [2023-12-22 02:19:04,770 INFO L226 Difference]: Without dead ends: 21737 [2023-12-22 02:19:04,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 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 02:19:04,791 INFO L413 NwaCegarLoop]: 1629 mSDtfsCounter, 52 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 3175 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 02:19:04,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 3175 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:19:04,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21737 states. [2023-12-22 02:19:05,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21737 to 21735. [2023-12-22 02:19:05,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21735 states, 21733 states have (on average 1.3729351677172963) internal successors, (29838), 21734 states have internal predecessors, (29838), 0 states have call successors, (0), 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 02:19:05,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21735 states to 21735 states and 29838 transitions. [2023-12-22 02:19:05,240 INFO L78 Accepts]: Start accepts. Automaton has 21735 states and 29838 transitions. Word has length 131 [2023-12-22 02:19:05,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:19:05,240 INFO L495 AbstractCegarLoop]: Abstraction has 21735 states and 29838 transitions. [2023-12-22 02:19:05,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 02:19:05,241 INFO L276 IsEmpty]: Start isEmpty. Operand 21735 states and 29838 transitions. [2023-12-22 02:19:05,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-22 02:19:05,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:19:05,242 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:19:05,248 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 (27)] Ended with exit code 0 [2023-12-22 02:19:05,442 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 02:19:05,443 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:19:05,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:19:05,443 INFO L85 PathProgramCache]: Analyzing trace with hash -792732064, now seen corresponding path program 1 times [2023-12-22 02:19:05,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:19:05,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747335972] [2023-12-22 02:19:05,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:19:05,444 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 02:19:05,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:19:05,445 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 02:19:05,445 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 02:19:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:19:05,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:19:05,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:19:06,707 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:19:06,708 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:19:07,120 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:19:07,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:19:07,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747335972] [2023-12-22 02:19:07,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747335972] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:19:07,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:19:07,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:19:07,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231605836] [2023-12-22 02:19:07,121 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:19:07,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:19:07,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:19:07,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:19:07,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:19:07,122 INFO L87 Difference]: Start difference. First operand 21735 states and 29838 transitions. Second operand has 16 states, 16 states have (on average 15.875) internal successors, (254), 16 states have internal predecessors, (254), 0 states have call successors, (0), 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 02:19:09,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:19:09,509 INFO L93 Difference]: Finished difference Result 68783 states and 93394 transitions. [2023-12-22 02:19:09,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 02:19:09,510 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.875) internal successors, (254), 16 states have internal predecessors, (254), 0 states have call successors, (0), 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 132 [2023-12-22 02:19:09,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:19:09,571 INFO L225 Difference]: With dead ends: 68783 [2023-12-22 02:19:09,571 INFO L226 Difference]: Without dead ends: 50157 [2023-12-22 02:19:09,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 02:19:09,590 INFO L413 NwaCegarLoop]: 1619 mSDtfsCounter, 3839 mSDsluCounter, 11070 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3839 SdHoareTripleChecker+Valid, 12689 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 02:19:09,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3839 Valid, 12689 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 02:19:09,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50157 states. [2023-12-22 02:19:10,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50157 to 41511. [2023-12-22 02:19:10,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41511 states, 41509 states have (on average 1.3525259582259268) internal successors, (56142), 41510 states have internal predecessors, (56142), 0 states have call successors, (0), 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 02:19:10,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41511 states to 41511 states and 56142 transitions. [2023-12-22 02:19:10,695 INFO L78 Accepts]: Start accepts. Automaton has 41511 states and 56142 transitions. Word has length 132 [2023-12-22 02:19:10,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:19:10,695 INFO L495 AbstractCegarLoop]: Abstraction has 41511 states and 56142 transitions. [2023-12-22 02:19:10,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.875) internal successors, (254), 16 states have internal predecessors, (254), 0 states have call successors, (0), 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 02:19:10,696 INFO L276 IsEmpty]: Start isEmpty. Operand 41511 states and 56142 transitions. [2023-12-22 02:19:10,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-22 02:19:10,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:19:10,698 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:19:10,704 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 02:19:10,898 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 02:19:10,898 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:19:10,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:19:10,899 INFO L85 PathProgramCache]: Analyzing trace with hash -338987168, now seen corresponding path program 1 times [2023-12-22 02:19:10,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:19:10,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412114022] [2023-12-22 02:19:10,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:19:10,900 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 02:19:10,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:19:10,901 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 02:19:10,902 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 02:19:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:19:11,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:19:11,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:19:11,099 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:19:11,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:19:11,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:19:11,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412114022] [2023-12-22 02:19:11,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412114022] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:19:11,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:19:11,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:19:11,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646872883] [2023-12-22 02:19:11,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:19:11,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:19:11,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:19:11,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:19:11,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:19:11,101 INFO L87 Difference]: Start difference. First operand 41511 states and 56142 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 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 02:19:11,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:19:11,550 INFO L93 Difference]: Finished difference Result 60715 states and 81968 transitions. [2023-12-22 02:19:11,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:19:11,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 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 134 [2023-12-22 02:19:11,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:19:11,577 INFO L225 Difference]: With dead ends: 60715 [2023-12-22 02:19:11,577 INFO L226 Difference]: Without dead ends: 22313 [2023-12-22 02:19:11,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 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 02:19:11,599 INFO L413 NwaCegarLoop]: 1622 mSDtfsCounter, 48 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3160 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 02:19:11,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3160 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:19:11,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22313 states. [2023-12-22 02:19:12,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22313 to 22311. [2023-12-22 02:19:12,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22311 states, 22309 states have (on average 1.3503967008830517) internal successors, (30126), 22310 states have internal predecessors, (30126), 0 states have call successors, (0), 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 02:19:12,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22311 states to 22311 states and 30126 transitions. [2023-12-22 02:19:12,241 INFO L78 Accepts]: Start accepts. Automaton has 22311 states and 30126 transitions. Word has length 134 [2023-12-22 02:19:12,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:19:12,242 INFO L495 AbstractCegarLoop]: Abstraction has 22311 states and 30126 transitions. [2023-12-22 02:19:12,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 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 02:19:12,242 INFO L276 IsEmpty]: Start isEmpty. Operand 22311 states and 30126 transitions. [2023-12-22 02:19:12,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-22 02:19:12,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:19:12,243 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:19:12,247 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 02:19:12,444 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 02:19:12,444 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:19:12,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:19:12,444 INFO L85 PathProgramCache]: Analyzing trace with hash 2045434673, now seen corresponding path program 1 times [2023-12-22 02:19:12,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:19:12,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915291018] [2023-12-22 02:19:12,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:19:12,445 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 02:19:12,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:19:12,446 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 02:19:12,448 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 02:19:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:19:12,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:19:12,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:19:13,583 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:19:13,584 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:19:14,053 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:19:14,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:19:14,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915291018] [2023-12-22 02:19:14,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [915291018] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:19:14,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:19:14,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:19:14,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365512295] [2023-12-22 02:19:14,054 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:19:14,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:19:14,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:19:14,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:19:14,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:19:14,055 INFO L87 Difference]: Start difference. First operand 22311 states and 30126 transitions. Second operand has 16 states, 16 states have (on average 16.375) internal successors, (262), 16 states have internal predecessors, (262), 0 states have call successors, (0), 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 02:19:16,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:19:16,689 INFO L93 Difference]: Finished difference Result 69359 states and 92338 transitions. [2023-12-22 02:19:16,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 02:19:16,689 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 16.375) internal successors, (262), 16 states have internal predecessors, (262), 0 states have call successors, (0), 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 135 [2023-12-22 02:19:16,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:19:16,750 INFO L225 Difference]: With dead ends: 69359 [2023-12-22 02:19:16,750 INFO L226 Difference]: Without dead ends: 50157 [2023-12-22 02:19:16,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 254 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 02:19:16,758 INFO L413 NwaCegarLoop]: 1601 mSDtfsCounter, 3583 mSDsluCounter, 11071 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3583 SdHoareTripleChecker+Valid, 12672 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:19:16,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3583 Valid, 12672 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 874 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 02:19:16,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50157 states. [2023-12-22 02:19:17,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50157 to 42663. [2023-12-22 02:19:17,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42663 states, 42661 states have (on average 1.3295046998429478) internal successors, (56718), 42662 states have internal predecessors, (56718), 0 states have call successors, (0), 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 02:19:17,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42663 states to 42663 states and 56718 transitions. [2023-12-22 02:19:17,997 INFO L78 Accepts]: Start accepts. Automaton has 42663 states and 56718 transitions. Word has length 135 [2023-12-22 02:19:17,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:19:17,997 INFO L495 AbstractCegarLoop]: Abstraction has 42663 states and 56718 transitions. [2023-12-22 02:19:17,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.375) internal successors, (262), 16 states have internal predecessors, (262), 0 states have call successors, (0), 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 02:19:17,997 INFO L276 IsEmpty]: Start isEmpty. Operand 42663 states and 56718 transitions. [2023-12-22 02:19:17,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-22 02:19:18,000 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:19:18,000 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:19:18,004 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 02:19:18,200 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 02:19:18,200 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:19:18,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:19:18,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1732437443, now seen corresponding path program 1 times [2023-12-22 02:19:18,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:19:18,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727016998] [2023-12-22 02:19:18,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:19:18,201 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 02:19:18,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:19:18,202 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 02:19:18,203 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 02:19:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:19:18,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:19:18,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:19:18,392 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:19:18,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:19:18,393 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:19:18,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727016998] [2023-12-22 02:19:18,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727016998] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:19:18,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:19:18,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:19:18,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301447701] [2023-12-22 02:19:18,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:19:18,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:19:18,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:19:18,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:19:18,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:19:18,394 INFO L87 Difference]: Start difference. First operand 42663 states and 56718 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 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 02:19:18,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:19:18,891 INFO L93 Difference]: Finished difference Result 62443 states and 82736 transitions. [2023-12-22 02:19:18,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:19:18,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2023-12-22 02:19:18,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:19:18,916 INFO L225 Difference]: With dead ends: 62443 [2023-12-22 02:19:18,916 INFO L226 Difference]: Without dead ends: 22889 [2023-12-22 02:19:18,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 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 02:19:18,937 INFO L413 NwaCegarLoop]: 1615 mSDtfsCounter, 44 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3145 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 02:19:18,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3145 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:19:18,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22889 states. [2023-12-22 02:19:19,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22889 to 22887. [2023-12-22 02:19:19,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22887 states, 22885 states have (on average 1.3247979025562595) internal successors, (30318), 22886 states have internal predecessors, (30318), 0 states have call successors, (0), 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 02:19:19,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22887 states to 22887 states and 30318 transitions. [2023-12-22 02:19:19,655 INFO L78 Accepts]: Start accepts. Automaton has 22887 states and 30318 transitions. Word has length 137 [2023-12-22 02:19:19,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:19:19,655 INFO L495 AbstractCegarLoop]: Abstraction has 22887 states and 30318 transitions. [2023-12-22 02:19:19,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 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 02:19:19,656 INFO L276 IsEmpty]: Start isEmpty. Operand 22887 states and 30318 transitions. [2023-12-22 02:19:19,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-22 02:19:19,658 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:19:19,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:19:19,662 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 (31)] Forceful destruction successful, exit code 0 [2023-12-22 02:19:19,858 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 02:19:19,858 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:19:19,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:19:19,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1608084748, now seen corresponding path program 1 times [2023-12-22 02:19:19,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:19:19,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314209778] [2023-12-22 02:19:19,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:19:19,859 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 02:19:19,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:19:19,860 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 02:19:19,864 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 (32)] Waiting until timeout for monitored process [2023-12-22 02:19:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:19:20,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:19:20,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:19:20,927 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:19:20,927 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:19:21,526 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:19:21,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:19:21,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314209778] [2023-12-22 02:19:21,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314209778] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:19:21,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:19:21,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:19:21,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76606014] [2023-12-22 02:19:21,527 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:19:21,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:19:21,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:19:21,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:19:21,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:19:21,528 INFO L87 Difference]: Start difference. First operand 22887 states and 30318 transitions. Second operand has 16 states, 16 states have (on average 16.875) internal successors, (270), 16 states have internal predecessors, (270), 0 states have call successors, (0), 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 02:19:23,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:19:23,790 INFO L93 Difference]: Finished difference Result 59119 states and 77170 transitions. [2023-12-22 02:19:23,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 02:19:23,791 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 16.875) internal successors, (270), 16 states have internal predecessors, (270), 0 states have call successors, (0), 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 138 [2023-12-22 02:19:23,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:19:23,833 INFO L225 Difference]: With dead ends: 59119 [2023-12-22 02:19:23,833 INFO L226 Difference]: Without dead ends: 39341 [2023-12-22 02:19:23,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-22 02:19:23,852 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 6526 mSDsluCounter, 12527 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6526 SdHoareTripleChecker+Valid, 14110 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:19:23,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6526 Valid, 14110 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 02:19:23,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39341 states. [2023-12-22 02:19:24,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39341 to 36839. [2023-12-22 02:19:24,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36839 states, 36837 states have (on average 1.3042864511225127) internal successors, (48046), 36838 states have internal predecessors, (48046), 0 states have call successors, (0), 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 02:19:24,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36839 states to 36839 states and 48046 transitions. [2023-12-22 02:19:24,860 INFO L78 Accepts]: Start accepts. Automaton has 36839 states and 48046 transitions. Word has length 138 [2023-12-22 02:19:24,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:19:24,860 INFO L495 AbstractCegarLoop]: Abstraction has 36839 states and 48046 transitions. [2023-12-22 02:19:24,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.875) internal successors, (270), 16 states have internal predecessors, (270), 0 states have call successors, (0), 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 02:19:24,860 INFO L276 IsEmpty]: Start isEmpty. Operand 36839 states and 48046 transitions. [2023-12-22 02:19:24,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-22 02:19:24,863 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:19:24,863 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:19:24,869 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 02:19:25,067 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 02:19:25,067 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:19:25,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:19:25,068 INFO L85 PathProgramCache]: Analyzing trace with hash -108681588, now seen corresponding path program 1 times [2023-12-22 02:19:25,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:19:25,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730307742] [2023-12-22 02:19:25,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:19:25,068 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 02:19:25,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:19:25,069 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 02:19:25,070 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 02:19:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:19:25,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 02:19:25,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:19:25,383 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 02:19:25,383 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:19:25,571 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 02:19:25,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:19:25,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730307742] [2023-12-22 02:19:25,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730307742] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:19:25,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:19:25,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 02:19:25,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249474608] [2023-12-22 02:19:25,571 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:19:25,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:19:25,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:19:25,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:19:25,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:19:25,572 INFO L87 Difference]: Start difference. First operand 36839 states and 48046 transitions. Second operand has 6 states, 6 states have (on average 45.333333333333336) internal successors, (272), 6 states have internal predecessors, (272), 0 states have call successors, (0), 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 02:19:28,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:19:28,253 INFO L93 Difference]: Finished difference Result 134753 states and 172483 transitions. [2023-12-22 02:19:28,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:19:28,253 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 45.333333333333336) internal successors, (272), 6 states have internal predecessors, (272), 0 states have call successors, (0), 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 140 [2023-12-22 02:19:28,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:19:28,372 INFO L225 Difference]: With dead ends: 134753 [2023-12-22 02:19:28,372 INFO L226 Difference]: Without dead ends: 101023 [2023-12-22 02:19:28,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 274 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 02:19:28,386 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 4569 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4569 SdHoareTripleChecker+Valid, 3476 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:19:28,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4569 Valid, 3476 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:19:28,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101023 states. [2023-12-22 02:19:31,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101023 to 100699. [2023-12-22 02:19:31,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100699 states, 100697 states have (on average 1.2415861445723309) internal successors, (125024), 100698 states have internal predecessors, (125024), 0 states have call successors, (0), 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 02:19:31,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100699 states to 100699 states and 125024 transitions. [2023-12-22 02:19:31,910 INFO L78 Accepts]: Start accepts. Automaton has 100699 states and 125024 transitions. Word has length 140 [2023-12-22 02:19:31,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:19:31,910 INFO L495 AbstractCegarLoop]: Abstraction has 100699 states and 125024 transitions. [2023-12-22 02:19:31,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.333333333333336) internal successors, (272), 6 states have internal predecessors, (272), 0 states have call successors, (0), 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 02:19:31,910 INFO L276 IsEmpty]: Start isEmpty. Operand 100699 states and 125024 transitions. [2023-12-22 02:19:31,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-22 02:19:31,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:19:31,916 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:19:31,919 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 02:19:32,116 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 02:19:32,117 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:19:32,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:19:32,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1603527152, now seen corresponding path program 1 times [2023-12-22 02:19:32,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:19:32,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848917936] [2023-12-22 02:19:32,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:19:32,118 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 02:19:32,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:19:32,119 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 02:19:32,120 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 02:19:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:19:32,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:19:32,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:19:32,880 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:19:32,880 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:19:32,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:19:32,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [848917936] [2023-12-22 02:19:32,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [848917936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:19:32,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:19:32,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:19:32,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540145100] [2023-12-22 02:19:32,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:19:32,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:19:32,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:19:32,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:19:32,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:19:32,882 INFO L87 Difference]: Start difference. First operand 100699 states and 125024 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 states have internal predecessors, (155), 0 states have call successors, (0), 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 02:20:04,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:20:04,081 INFO L93 Difference]: Finished difference Result 104456 states and 130282 transitions. [2023-12-22 02:20:04,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:20:04,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2023-12-22 02:20:04,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:20:04,222 INFO L225 Difference]: With dead ends: 104456 [2023-12-22 02:20:04,222 INFO L226 Difference]: Without dead ends: 101450 [2023-12-22 02:20:04,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 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 02:20:04,243 INFO L413 NwaCegarLoop]: 834 mSDtfsCounter, 822 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2202 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 2297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:20:04,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [822 Valid, 841 Invalid, 2297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 2202 Invalid, 0 Unknown, 0 Unchecked, 28.6s Time] [2023-12-22 02:20:04,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101450 states. [2023-12-22 02:20:07,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101450 to 101450. [2023-12-22 02:20:07,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101450 states, 101448 states have (on average 1.2400343032883843) internal successors, (125799), 101449 states have internal predecessors, (125799), 0 states have call successors, (0), 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 02:20:07,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101450 states to 101450 states and 125799 transitions. [2023-12-22 02:20:07,627 INFO L78 Accepts]: Start accepts. Automaton has 101450 states and 125799 transitions. Word has length 155 [2023-12-22 02:20:07,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:20:07,627 INFO L495 AbstractCegarLoop]: Abstraction has 101450 states and 125799 transitions. [2023-12-22 02:20:07,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 states have internal predecessors, (155), 0 states have call successors, (0), 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 02:20:07,627 INFO L276 IsEmpty]: Start isEmpty. Operand 101450 states and 125799 transitions. [2023-12-22 02:20:07,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-22 02:20:07,650 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:20:07,650 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:20:07,656 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 02:20:07,850 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 02:20:07,851 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:20:07,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:20:07,851 INFO L85 PathProgramCache]: Analyzing trace with hash 2029019891, now seen corresponding path program 1 times [2023-12-22 02:20:07,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:20:07,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206535080] [2023-12-22 02:20:07,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:20:07,852 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 02:20:07,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:20:07,853 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 02:20:07,854 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 02:20:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:20:07,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 02:20:07,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:20:08,319 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:20:08,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:20:08,689 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:20:08,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:20:08,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206535080] [2023-12-22 02:20:08,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206535080] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 02:20:08,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 02:20:08,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 02:20:08,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11166813] [2023-12-22 02:20:08,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:20:08,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:20:08,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:20:08,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:20:08,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:20:08,691 INFO L87 Difference]: Start difference. First operand 101450 states and 125799 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:21:27,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:21:27,364 INFO L93 Difference]: Finished difference Result 104456 states and 130872 transitions. [2023-12-22 02:21:27,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:21:27,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 200 [2023-12-22 02:21:27,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:21:27,498 INFO L225 Difference]: With dead ends: 104456 [2023-12-22 02:21:27,498 INFO L226 Difference]: Without dead ends: 102952 [2023-12-22 02:21:27,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:21:27,520 INFO L413 NwaCegarLoop]: 658 mSDtfsCounter, 894 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2331 mSolverCounterSat, 724 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 3055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 724 IncrementalHoareTripleChecker+Valid, 2331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.7s IncrementalHoareTripleChecker+Time [2023-12-22 02:21:27,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 665 Invalid, 3055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [724 Valid, 2331 Invalid, 0 Unknown, 0 Unchecked, 75.7s Time] [2023-12-22 02:21:27,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102952 states. [2023-12-22 02:21:30,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102952 to 102952. [2023-12-22 02:21:30,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102952 states, 102950 states have (on average 1.2424769305488101) internal successors, (127913), 102951 states have internal predecessors, (127913), 0 states have call successors, (0), 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 02:21:30,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102952 states to 102952 states and 127913 transitions. [2023-12-22 02:21:30,775 INFO L78 Accepts]: Start accepts. Automaton has 102952 states and 127913 transitions. Word has length 200 [2023-12-22 02:21:30,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:21:30,775 INFO L495 AbstractCegarLoop]: Abstraction has 102952 states and 127913 transitions. [2023-12-22 02:21:30,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:21:30,775 INFO L276 IsEmpty]: Start isEmpty. Operand 102952 states and 127913 transitions. [2023-12-22 02:21:30,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-12-22 02:21:30,798 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:21:30,798 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:21:30,802 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 (35)] Ended with exit code 0 [2023-12-22 02:21:30,998 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 02:21:30,999 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:21:30,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:21:30,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2102099331, now seen corresponding path program 1 times [2023-12-22 02:21:31,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:21:31,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583491969] [2023-12-22 02:21:31,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:21:31,000 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 02:21:31,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:21:31,001 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 02:21:31,002 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 02:21:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:21:31,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:21:31,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:21:31,355 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-22 02:21:31,355 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:21:31,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:21:31,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583491969] [2023-12-22 02:21:31,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583491969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:21:31,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:21:31,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:21:31,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388718779] [2023-12-22 02:21:31,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:21:31,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:21:31,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:21:31,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:21:31,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:21:31,356 INFO L87 Difference]: Start difference. First operand 102952 states and 127913 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 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 02:22:12,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:22:12,728 INFO L93 Difference]: Finished difference Result 111966 states and 140818 transitions. [2023-12-22 02:22:12,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:22:12,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 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 204 [2023-12-22 02:22:12,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:22:12,854 INFO L225 Difference]: With dead ends: 111966 [2023-12-22 02:22:12,855 INFO L226 Difference]: Without dead ends: 106707 [2023-12-22 02:22:12,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 202 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 02:22:12,868 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 776 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2283 mSolverCounterSat, 662 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 2945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 662 IncrementalHoareTripleChecker+Valid, 2283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:22:12,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 828 Invalid, 2945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [662 Valid, 2283 Invalid, 0 Unknown, 0 Unchecked, 38.5s Time] [2023-12-22 02:22:12,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106707 states. [2023-12-22 02:22:16,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106707 to 106707. [2023-12-22 02:22:16,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106707 states, 106705 states have (on average 1.237205379316808) internal successors, (132016), 106706 states have internal predecessors, (132016), 0 states have call successors, (0), 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 02:22:16,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106707 states to 106707 states and 132016 transitions. [2023-12-22 02:22:16,340 INFO L78 Accepts]: Start accepts. Automaton has 106707 states and 132016 transitions. Word has length 204 [2023-12-22 02:22:16,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:22:16,340 INFO L495 AbstractCegarLoop]: Abstraction has 106707 states and 132016 transitions. [2023-12-22 02:22:16,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 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 02:22:16,340 INFO L276 IsEmpty]: Start isEmpty. Operand 106707 states and 132016 transitions. [2023-12-22 02:22:16,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-22 02:22:16,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:22:16,362 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:22:16,368 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 02:22:16,566 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 02:22:16,566 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:22:16,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:22:16,567 INFO L85 PathProgramCache]: Analyzing trace with hash -334450260, now seen corresponding path program 1 times [2023-12-22 02:22:16,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:22:16,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380703258] [2023-12-22 02:22:16,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:22:16,568 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 02:22:16,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:22:16,569 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 02:22:16,572 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 02:22:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:22:16,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 02:22:16,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:22:18,384 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 70 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:22:18,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:22:19,162 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 70 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:22:19,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:22:19,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380703258] [2023-12-22 02:22:19,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380703258] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:22:19,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:22:19,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 02:22:19,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332353308] [2023-12-22 02:22:19,163 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:22:19,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:22:19,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:22:19,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:22:19,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:22:19,164 INFO L87 Difference]: Start difference. First operand 106707 states and 132016 transitions. Second operand has 26 states, 26 states have (on average 14.384615384615385) internal successors, (374), 25 states have internal predecessors, (374), 0 states have call successors, (0), 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 02:22:24,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:22:24,531 INFO L93 Difference]: Finished difference Result 172731 states and 214148 transitions. [2023-12-22 02:22:24,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 02:22:24,532 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 14.384615384615385) internal successors, (374), 25 states have internal predecessors, (374), 0 states have call successors, (0), 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 205 [2023-12-22 02:22:24,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:22:24,664 INFO L225 Difference]: With dead ends: 172731 [2023-12-22 02:22:24,665 INFO L226 Difference]: Without dead ends: 107609 [2023-12-22 02:22:24,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=383, Invalid=1423, Unknown=0, NotChecked=0, Total=1806 [2023-12-22 02:22:24,691 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 18787 mSDsluCounter, 8272 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18787 SdHoareTripleChecker+Valid, 9855 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:22:24,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18787 Valid, 9855 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-22 02:22:24,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107609 states. [2023-12-22 02:22:28,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107609 to 106707. [2023-12-22 02:22:28,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106707 states, 106705 states have (on average 1.2288083969823345) internal successors, (131120), 106706 states have internal predecessors, (131120), 0 states have call successors, (0), 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 02:22:28,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106707 states to 106707 states and 131120 transitions. [2023-12-22 02:22:28,426 INFO L78 Accepts]: Start accepts. Automaton has 106707 states and 131120 transitions. Word has length 205 [2023-12-22 02:22:28,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:22:28,426 INFO L495 AbstractCegarLoop]: Abstraction has 106707 states and 131120 transitions. [2023-12-22 02:22:28,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 14.384615384615385) internal successors, (374), 25 states have internal predecessors, (374), 0 states have call successors, (0), 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 02:22:28,427 INFO L276 IsEmpty]: Start isEmpty. Operand 106707 states and 131120 transitions. [2023-12-22 02:22:28,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-22 02:22:28,445 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:22:28,445 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:22:28,450 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 02:22:28,649 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 02:22:28,649 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:22:28,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:22:28,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1445388213, now seen corresponding path program 1 times [2023-12-22 02:22:28,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:22:28,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906189955] [2023-12-22 02:22:28,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:22:28,651 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 02:22:28,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:22:28,651 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 02:22:28,652 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 02:22:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:22:28,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 02:22:28,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:22:30,288 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 62 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:22:30,288 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:22:30,900 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 62 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:22:30,900 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:22:30,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906189955] [2023-12-22 02:22:30,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906189955] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:22:30,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:22:30,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 02:22:30,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530120209] [2023-12-22 02:22:30,901 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:22:30,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:22:30,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:22:30,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:22:30,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:22:30,902 INFO L87 Difference]: Start difference. First operand 106707 states and 131120 transitions. Second operand has 26 states, 26 states have (on average 14.615384615384615) internal successors, (380), 25 states have internal predecessors, (380), 0 states have call successors, (0), 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 02:22:36,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:22:36,288 INFO L93 Difference]: Finished difference Result 195455 states and 240587 transitions. [2023-12-22 02:22:36,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-22 02:22:36,289 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 14.615384615384615) internal successors, (380), 25 states have internal predecessors, (380), 0 states have call successors, (0), 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 206 [2023-12-22 02:22:36,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:22:36,445 INFO L225 Difference]: With dead ends: 195455 [2023-12-22 02:22:36,445 INFO L226 Difference]: Without dead ends: 106709 [2023-12-22 02:22:36,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=403, Invalid=1489, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 02:22:36,474 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 16692 mSDsluCounter, 6853 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16692 SdHoareTripleChecker+Valid, 8436 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 02:22:36,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16692 Valid, 8436 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 02:22:36,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106709 states. [2023-12-22 02:22:40,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106709 to 106707. [2023-12-22 02:22:40,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106707 states, 106705 states have (on average 1.2210111991003234) internal successors, (130288), 106706 states have internal predecessors, (130288), 0 states have call successors, (0), 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 02:22:40,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106707 states to 106707 states and 130288 transitions. [2023-12-22 02:22:40,739 INFO L78 Accepts]: Start accepts. Automaton has 106707 states and 130288 transitions. Word has length 206 [2023-12-22 02:22:40,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:22:40,739 INFO L495 AbstractCegarLoop]: Abstraction has 106707 states and 130288 transitions. [2023-12-22 02:22:40,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 14.615384615384615) internal successors, (380), 25 states have internal predecessors, (380), 0 states have call successors, (0), 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 02:22:40,739 INFO L276 IsEmpty]: Start isEmpty. Operand 106707 states and 130288 transitions. [2023-12-22 02:22:40,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-12-22 02:22:40,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:22:40,766 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:22:40,771 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 (38)] Ended with exit code 0 [2023-12-22 02:22:40,971 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 02:22:40,971 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:22:40,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:22:40,972 INFO L85 PathProgramCache]: Analyzing trace with hash -852794084, now seen corresponding path program 1 times [2023-12-22 02:22:40,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:22:40,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071115005] [2023-12-22 02:22:40,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:22:40,972 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 02:22:40,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:22:40,973 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 02:22:40,975 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 02:22:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:22:41,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 02:22:41,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:22:43,028 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 54 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:22:43,028 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:22:43,516 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 54 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:22:43,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:22:43,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071115005] [2023-12-22 02:22:43,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1071115005] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:22:43,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:22:43,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 02:22:43,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613793153] [2023-12-22 02:22:43,517 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:22:43,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:22:43,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:22:43,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:22:43,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:22:43,519 INFO L87 Difference]: Start difference. First operand 106707 states and 130288 transitions. Second operand has 26 states, 26 states have (on average 14.846153846153847) internal successors, (386), 25 states have internal predecessors, (386), 0 states have call successors, (0), 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 02:22:58,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:22:58,572 INFO L93 Difference]: Finished difference Result 468479 states and 580517 transitions. [2023-12-22 02:22:58,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-12-22 02:22:58,573 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 14.846153846153847) internal successors, (386), 25 states have internal predecessors, (386), 0 states have call successors, (0), 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 207 [2023-12-22 02:22:58,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:22:59,310 INFO L225 Difference]: With dead ends: 468479 [2023-12-22 02:22:59,310 INFO L226 Difference]: Without dead ends: 425597 [2023-12-22 02:22:59,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2689 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1484, Invalid=7636, Unknown=0, NotChecked=0, Total=9120 [2023-12-22 02:22:59,376 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 20156 mSDsluCounter, 8604 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20156 SdHoareTripleChecker+Valid, 10187 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-22 02:22:59,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20156 Valid, 10187 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1482 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-22 02:22:59,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425597 states. [2023-12-22 02:23:06,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425597 to 106707. [2023-12-22 02:23:06,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106707 states, 106705 states have (on average 1.2168127079330866) internal successors, (129840), 106706 states have internal predecessors, (129840), 0 states have call successors, (0), 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 02:23:06,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106707 states to 106707 states and 129840 transitions. [2023-12-22 02:23:06,336 INFO L78 Accepts]: Start accepts. Automaton has 106707 states and 129840 transitions. Word has length 207 [2023-12-22 02:23:06,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:23:06,336 INFO L495 AbstractCegarLoop]: Abstraction has 106707 states and 129840 transitions. [2023-12-22 02:23:06,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 14.846153846153847) internal successors, (386), 25 states have internal predecessors, (386), 0 states have call successors, (0), 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 02:23:06,336 INFO L276 IsEmpty]: Start isEmpty. Operand 106707 states and 129840 transitions. [2023-12-22 02:23:06,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-12-22 02:23:06,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:23:06,354 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:23:06,360 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 02:23:06,554 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 02:23:06,554 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:23:06,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:23:06,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1634610683, now seen corresponding path program 1 times [2023-12-22 02:23:06,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:23:06,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561310291] [2023-12-22 02:23:06,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:23:06,555 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 02:23:06,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:23:06,556 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 02:23:06,557 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 02:23:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:23:06,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 02:23:06,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:23:08,553 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 46 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:08,553 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:23:09,121 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 46 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:09,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:23:09,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561310291] [2023-12-22 02:23:09,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [561310291] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:23:09,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:23:09,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 02:23:09,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896880001] [2023-12-22 02:23:09,121 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:23:09,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:23:09,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:23:09,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:23:09,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:23:09,123 INFO L87 Difference]: Start difference. First operand 106707 states and 129840 transitions. Second operand has 26 states, 26 states have (on average 15.076923076923077) internal successors, (392), 25 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:15,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:23:15,855 INFO L93 Difference]: Finished difference Result 165339 states and 202292 transitions. [2023-12-22 02:23:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 02:23:15,856 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 15.076923076923077) internal successors, (392), 25 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 208 [2023-12-22 02:23:15,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:23:16,015 INFO L225 Difference]: With dead ends: 165339 [2023-12-22 02:23:16,015 INFO L226 Difference]: Without dead ends: 123609 [2023-12-22 02:23:16,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 02:23:16,049 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 14272 mSDsluCounter, 6922 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14272 SdHoareTripleChecker+Valid, 8505 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:23:16,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14272 Valid, 8505 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-22 02:23:16,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123609 states. [2023-12-22 02:23:21,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123609 to 106707. [2023-12-22 02:23:21,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106707 states, 106705 states have (on average 1.2126142167658498) internal successors, (129392), 106706 states have internal predecessors, (129392), 0 states have call successors, (0), 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 02:23:21,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106707 states to 106707 states and 129392 transitions. [2023-12-22 02:23:21,443 INFO L78 Accepts]: Start accepts. Automaton has 106707 states and 129392 transitions. Word has length 208 [2023-12-22 02:23:21,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:23:21,443 INFO L495 AbstractCegarLoop]: Abstraction has 106707 states and 129392 transitions. [2023-12-22 02:23:21,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 15.076923076923077) internal successors, (392), 25 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:23:21,443 INFO L276 IsEmpty]: Start isEmpty. Operand 106707 states and 129392 transitions. [2023-12-22 02:23:21,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-22 02:23:21,465 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:23:21,465 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:23:21,493 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 (40)] Ended with exit code 0 [2023-12-22 02:23:21,689 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 02:23:21,689 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:23:21,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:23:21,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1984349044, now seen corresponding path program 1 times [2023-12-22 02:23:21,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:23:21,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930032217] [2023-12-22 02:23:21,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:23:21,698 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 02:23:21,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:23:21,699 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 02:23:21,701 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 (41)] Waiting until timeout for monitored process [2023-12-22 02:23:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:23:21,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 02:23:21,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:23:24,089 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 38 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:24,089 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:23:24,712 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 38 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:24,713 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:23:24,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930032217] [2023-12-22 02:23:24,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930032217] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:23:24,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:23:24,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 02:23:24,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692155018] [2023-12-22 02:23:24,713 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:23:24,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:23:24,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:23:24,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:23:24,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:23:24,714 INFO L87 Difference]: Start difference. First operand 106707 states and 129392 transitions. Second operand has 26 states, 26 states have (on average 15.307692307692308) internal successors, (398), 25 states have internal predecessors, (398), 0 states have call successors, (0), 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 02:23:31,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:23:31,286 INFO L93 Difference]: Finished difference Result 160155 states and 195060 transitions. [2023-12-22 02:23:31,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 02:23:31,286 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 15.307692307692308) internal successors, (398), 25 states have internal predecessors, (398), 0 states have call successors, (0), 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 209 [2023-12-22 02:23:31,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:23:31,429 INFO L225 Difference]: With dead ends: 160155 [2023-12-22 02:23:31,429 INFO L226 Difference]: Without dead ends: 119577 [2023-12-22 02:23:31,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 02:23:31,448 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 15501 mSDsluCounter, 6760 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15501 SdHoareTripleChecker+Valid, 8343 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:23:31,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15501 Valid, 8343 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-22 02:23:31,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119577 states. [2023-12-22 02:23:36,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119577 to 106707. [2023-12-22 02:23:36,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106707 states, 106705 states have (on average 1.208415725598613) internal successors, (128944), 106706 states have internal predecessors, (128944), 0 states have call successors, (0), 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 02:23:36,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106707 states to 106707 states and 128944 transitions. [2023-12-22 02:23:36,723 INFO L78 Accepts]: Start accepts. Automaton has 106707 states and 128944 transitions. Word has length 209 [2023-12-22 02:23:36,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:23:36,724 INFO L495 AbstractCegarLoop]: Abstraction has 106707 states and 128944 transitions. [2023-12-22 02:23:36,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 15.307692307692308) internal successors, (398), 25 states have internal predecessors, (398), 0 states have call successors, (0), 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 02:23:36,724 INFO L276 IsEmpty]: Start isEmpty. Operand 106707 states and 128944 transitions. [2023-12-22 02:23:36,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-12-22 02:23:36,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:23:36,746 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:23:36,751 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 (41)] Forceful destruction successful, exit code 0 [2023-12-22 02:23:36,946 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 02:23:36,947 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:23:36,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:23:36,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1221500271, now seen corresponding path program 1 times [2023-12-22 02:23:36,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:23:36,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303616473] [2023-12-22 02:23:36,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:23:36,948 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 02:23:36,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:23:36,949 INFO L229 MonitoredProcess]: Starting monitored process 42 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 02:23:36,952 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 (42)] Waiting until timeout for monitored process [2023-12-22 02:23:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:23:37,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 02:23:37,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:23:39,178 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 38 proven. 118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:39,179 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:23:39,885 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 38 proven. 118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:39,885 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:23:39,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303616473] [2023-12-22 02:23:39,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303616473] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:23:39,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:23:39,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 02:23:39,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158386251] [2023-12-22 02:23:39,886 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:23:39,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:23:39,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:23:39,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:23:39,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:23:39,887 INFO L87 Difference]: Start difference. First operand 106707 states and 128944 transitions. Second operand has 26 states, 26 states have (on average 15.423076923076923) internal successors, (401), 26 states have internal predecessors, (401), 0 states have call successors, (0), 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 02:23:52,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:23:52,636 INFO L93 Difference]: Finished difference Result 178725 states and 216105 transitions. [2023-12-22 02:23:52,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 02:23:52,636 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 15.423076923076923) internal successors, (401), 26 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2023-12-22 02:23:52,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:23:52,827 INFO L225 Difference]: With dead ends: 178725 [2023-12-22 02:23:52,827 INFO L226 Difference]: Without dead ends: 161699 [2023-12-22 02:23:52,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 394 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 02:23:52,848 INFO L413 NwaCegarLoop]: 1734 mSDtfsCounter, 5849 mSDsluCounter, 21725 mSDsCounter, 0 mSdLazyCounter, 3075 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5849 SdHoareTripleChecker+Valid, 23459 SdHoareTripleChecker+Invalid, 3096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:23:52,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5849 Valid, 23459 Invalid, 3096 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 3075 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-22 02:23:52,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161699 states. [2023-12-22 02:23:57,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161699 to 77931. [2023-12-22 02:23:57,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77931 states, 77929 states have (on average 1.2117183590191072) internal successors, (94428), 77930 states have internal predecessors, (94428), 0 states have call successors, (0), 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 02:23:57,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77931 states to 77931 states and 94428 transitions. [2023-12-22 02:23:57,586 INFO L78 Accepts]: Start accepts. Automaton has 77931 states and 94428 transitions. Word has length 210 [2023-12-22 02:23:57,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:23:57,587 INFO L495 AbstractCegarLoop]: Abstraction has 77931 states and 94428 transitions. [2023-12-22 02:23:57,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 15.423076923076923) internal successors, (401), 26 states have internal predecessors, (401), 0 states have call successors, (0), 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 02:23:57,587 INFO L276 IsEmpty]: Start isEmpty. Operand 77931 states and 94428 transitions. [2023-12-22 02:23:57,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-12-22 02:23:57,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:23:57,600 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:23:57,604 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 (42)] Forceful destruction successful, exit code 0 [2023-12-22 02:23:57,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:23:57,801 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:23:57,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:23:57,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1789852757, now seen corresponding path program 1 times [2023-12-22 02:23:57,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:23:57,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685630385] [2023-12-22 02:23:57,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:23:57,802 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 02:23:57,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:23:57,803 INFO L229 MonitoredProcess]: Starting monitored process 43 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 02:23:57,809 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 (43)] Waiting until timeout for monitored process [2023-12-22 02:23:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:23:58,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 02:23:58,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:23:59,736 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 30 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:23:59,736 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:24:00,360 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 30 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:24:00,361 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:24:00,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685630385] [2023-12-22 02:24:00,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685630385] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:24:00,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:24:00,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 02:24:00,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005212032] [2023-12-22 02:24:00,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:24:00,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:24:00,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:24:00,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:24:00,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:24:00,363 INFO L87 Difference]: Start difference. First operand 77931 states and 94428 transitions. Second operand has 26 states, 26 states have (on average 15.538461538461538) internal successors, (404), 25 states have internal predecessors, (404), 0 states have call successors, (0), 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 02:24:06,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:24:06,627 INFO L93 Difference]: Finished difference Result 113651 states and 138032 transitions. [2023-12-22 02:24:06,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 02:24:06,628 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 15.538461538461538) internal successors, (404), 25 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2023-12-22 02:24:06,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:24:06,719 INFO L225 Difference]: With dead ends: 113651 [2023-12-22 02:24:06,719 INFO L226 Difference]: Without dead ends: 84561 [2023-12-22 02:24:06,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 02:24:06,797 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 18591 mSDsluCounter, 9928 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18591 SdHoareTripleChecker+Valid, 11511 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:24:06,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18591 Valid, 11511 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-22 02:24:06,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84561 states. [2023-12-22 02:24:10,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84561 to 77931. [2023-12-22 02:24:11,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77931 states, 77929 states have (on average 1.207406742034416) internal successors, (94092), 77930 states have internal predecessors, (94092), 0 states have call successors, (0), 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 02:24:11,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77931 states to 77931 states and 94092 transitions. [2023-12-22 02:24:11,119 INFO L78 Accepts]: Start accepts. Automaton has 77931 states and 94092 transitions. Word has length 210 [2023-12-22 02:24:11,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:24:11,119 INFO L495 AbstractCegarLoop]: Abstraction has 77931 states and 94092 transitions. [2023-12-22 02:24:11,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 15.538461538461538) internal successors, (404), 25 states have internal predecessors, (404), 0 states have call successors, (0), 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 02:24:11,120 INFO L276 IsEmpty]: Start isEmpty. Operand 77931 states and 94092 transitions. [2023-12-22 02:24:11,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-22 02:24:11,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:24:11,132 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:24:11,137 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 (43)] Forceful destruction successful, exit code 0 [2023-12-22 02:24:11,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:24:11,333 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:24:11,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:24:11,333 INFO L85 PathProgramCache]: Analyzing trace with hash 2128833532, now seen corresponding path program 1 times [2023-12-22 02:24:11,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:24:11,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071960305] [2023-12-22 02:24:11,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:24:11,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:24:11,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:24:11,335 INFO L229 MonitoredProcess]: Starting monitored process 44 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 02:24:11,338 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 (44)] Waiting until timeout for monitored process [2023-12-22 02:24:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:24:11,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 02:24:11,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:24:13,347 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 22 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:24:13,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:24:14,011 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 22 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:24:14,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:24:14,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071960305] [2023-12-22 02:24:14,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1071960305] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:24:14,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:24:14,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 02:24:14,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447097962] [2023-12-22 02:24:14,012 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:24:14,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:24:14,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:24:14,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:24:14,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:24:14,014 INFO L87 Difference]: Start difference. First operand 77931 states and 94092 transitions. Second operand has 26 states, 26 states have (on average 15.76923076923077) internal successors, (410), 25 states have internal predecessors, (410), 0 states have call successors, (0), 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 02:24:20,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:24:20,065 INFO L93 Difference]: Finished difference Result 109763 states and 132608 transitions. [2023-12-22 02:24:20,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 02:24:20,066 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 15.76923076923077) internal successors, (410), 25 states have internal predecessors, (410), 0 states have call successors, (0), 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 211 [2023-12-22 02:24:20,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:24:20,157 INFO L225 Difference]: With dead ends: 109763 [2023-12-22 02:24:20,158 INFO L226 Difference]: Without dead ends: 81537 [2023-12-22 02:24:20,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 02:24:20,175 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 13919 mSDsluCounter, 6770 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13919 SdHoareTripleChecker+Valid, 8353 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:24:20,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13919 Valid, 8353 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-22 02:24:20,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81537 states. [2023-12-22 02:24:24,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81537 to 77931. [2023-12-22 02:24:24,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77931 states, 77929 states have (on average 1.2030951250497248) internal successors, (93756), 77930 states have internal predecessors, (93756), 0 states have call successors, (0), 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 02:24:24,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77931 states to 77931 states and 93756 transitions. [2023-12-22 02:24:24,891 INFO L78 Accepts]: Start accepts. Automaton has 77931 states and 93756 transitions. Word has length 211 [2023-12-22 02:24:24,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:24:24,891 INFO L495 AbstractCegarLoop]: Abstraction has 77931 states and 93756 transitions. [2023-12-22 02:24:24,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 15.76923076923077) internal successors, (410), 25 states have internal predecessors, (410), 0 states have call successors, (0), 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 02:24:24,891 INFO L276 IsEmpty]: Start isEmpty. Operand 77931 states and 93756 transitions. [2023-12-22 02:24:24,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-22 02:24:24,905 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:24:24,905 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:24:24,909 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 (44)] Ended with exit code 0 [2023-12-22 02:24:25,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:24:25,105 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:24:25,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:24:25,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1424204123, now seen corresponding path program 1 times [2023-12-22 02:24:25,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:24:25,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109080616] [2023-12-22 02:24:25,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:24:25,106 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 02:24:25,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:24:25,107 INFO L229 MonitoredProcess]: Starting monitored process 45 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 02:24:25,108 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 (45)] Waiting until timeout for monitored process [2023-12-22 02:24:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:24:25,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 02:24:25,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:24:27,285 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 13 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:24:27,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:24:28,172 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 13 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:24:28,172 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:24:28,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109080616] [2023-12-22 02:24:28,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109080616] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:24:28,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:24:28,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 02:24:28,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809489208] [2023-12-22 02:24:28,172 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:24:28,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:24:28,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:24:28,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:24:28,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:24:28,174 INFO L87 Difference]: Start difference. First operand 77931 states and 93756 transitions. Second operand has 26 states, 26 states have (on average 16.076923076923077) internal successors, (418), 26 states have internal predecessors, (418), 0 states have call successors, (0), 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 02:24:38,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:24:38,790 INFO L93 Difference]: Finished difference Result 124845 states and 149065 transitions. [2023-12-22 02:24:38,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-22 02:24:38,791 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 16.076923076923077) internal successors, (418), 26 states have internal predecessors, (418), 0 states have call successors, (0), 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 212 [2023-12-22 02:24:38,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:24:38,898 INFO L225 Difference]: With dead ends: 124845 [2023-12-22 02:24:38,898 INFO L226 Difference]: Without dead ends: 91771 [2023-12-22 02:24:38,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-22 02:24:38,926 INFO L413 NwaCegarLoop]: 1688 mSDtfsCounter, 5454 mSDsluCounter, 22793 mSDsCounter, 0 mSdLazyCounter, 2770 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5454 SdHoareTripleChecker+Valid, 24481 SdHoareTripleChecker+Invalid, 2787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-22 02:24:38,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5454 Valid, 24481 Invalid, 2787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2770 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-22 02:24:38,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91771 states. [2023-12-22 02:24:42,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91771 to 52171. [2023-12-22 02:24:42,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52171 states, 52169 states have (on average 1.2039333703923787) internal successors, (62808), 52170 states have internal predecessors, (62808), 0 states have call successors, (0), 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 02:24:42,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52171 states to 52171 states and 62808 transitions. [2023-12-22 02:24:42,441 INFO L78 Accepts]: Start accepts. Automaton has 52171 states and 62808 transitions. Word has length 212 [2023-12-22 02:24:42,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:24:42,442 INFO L495 AbstractCegarLoop]: Abstraction has 52171 states and 62808 transitions. [2023-12-22 02:24:42,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 16.076923076923077) internal successors, (418), 26 states have internal predecessors, (418), 0 states have call successors, (0), 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 02:24:42,442 INFO L276 IsEmpty]: Start isEmpty. Operand 52171 states and 62808 transitions. [2023-12-22 02:24:42,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-22 02:24:42,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:24:42,448 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:24:42,455 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 (45)] Forceful destruction successful, exit code 0 [2023-12-22 02:24:42,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:24:42,649 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:24:42,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:24:42,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1778909695, now seen corresponding path program 1 times [2023-12-22 02:24:42,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:24:42,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400081809] [2023-12-22 02:24:42,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:24:42,650 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 02:24:42,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:24:42,651 INFO L229 MonitoredProcess]: Starting monitored process 46 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 02:24:42,652 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 (46)] Waiting until timeout for monitored process [2023-12-22 02:24:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:24:42,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 02:24:42,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:24:44,934 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 22 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:24:44,934 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:24:45,719 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 22 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:24:45,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:24:45,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400081809] [2023-12-22 02:24:45,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400081809] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:24:45,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:24:45,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 02:24:45,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294174165] [2023-12-22 02:24:45,719 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:24:45,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:24:45,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:24:45,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:24:45,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:24:45,721 INFO L87 Difference]: Start difference. First operand 52171 states and 62808 transitions. Second operand has 26 states, 26 states have (on average 15.884615384615385) internal successors, (413), 26 states have internal predecessors, (413), 0 states have call successors, (0), 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 02:24:56,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:24:56,289 INFO L93 Difference]: Finished difference Result 85777 states and 102651 transitions. [2023-12-22 02:24:56,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 02:24:56,290 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 15.884615384615385) internal successors, (413), 26 states have internal predecessors, (413), 0 states have call successors, (0), 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 212 [2023-12-22 02:24:56,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:24:56,376 INFO L225 Difference]: With dead ends: 85777 [2023-12-22 02:24:56,377 INFO L226 Difference]: Without dead ends: 76367 [2023-12-22 02:24:56,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1012 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 02:24:56,387 INFO L413 NwaCegarLoop]: 1701 mSDtfsCounter, 3864 mSDsluCounter, 23057 mSDsCounter, 0 mSdLazyCounter, 2961 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3864 SdHoareTripleChecker+Valid, 24758 SdHoareTripleChecker+Invalid, 2976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:24:56,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3864 Valid, 24758 Invalid, 2976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2961 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-22 02:24:56,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76367 states. [2023-12-22 02:25:00,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76367 to 65887. [2023-12-22 02:25:00,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65887 states, 65885 states have (on average 1.200182135539197) internal successors, (79074), 65886 states have internal predecessors, (79074), 0 states have call successors, (0), 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 02:25:00,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65887 states to 65887 states and 79074 transitions. [2023-12-22 02:25:00,848 INFO L78 Accepts]: Start accepts. Automaton has 65887 states and 79074 transitions. Word has length 212 [2023-12-22 02:25:00,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:25:00,848 INFO L495 AbstractCegarLoop]: Abstraction has 65887 states and 79074 transitions. [2023-12-22 02:25:00,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 15.884615384615385) internal successors, (413), 26 states have internal predecessors, (413), 0 states have call successors, (0), 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 02:25:00,848 INFO L276 IsEmpty]: Start isEmpty. Operand 65887 states and 79074 transitions. [2023-12-22 02:25:00,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-22 02:25:00,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:25:00,856 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:25:00,863 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 (46)] Forceful destruction successful, exit code 0 [2023-12-22 02:25:01,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:25:01,056 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:25:01,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:25:01,057 INFO L85 PathProgramCache]: Analyzing trace with hash -730175525, now seen corresponding path program 1 times [2023-12-22 02:25:01,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:25:01,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456546216] [2023-12-22 02:25:01,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:25:01,057 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 02:25:01,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:25:01,058 INFO L229 MonitoredProcess]: Starting monitored process 47 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 02:25:01,060 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 (47)] Waiting until timeout for monitored process [2023-12-22 02:25:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:25:01,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 02:25:01,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:25:03,541 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 31 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:03,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:25:04,372 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 31 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:04,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:25:04,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [456546216] [2023-12-22 02:25:04,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [456546216] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:25:04,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:25:04,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 02:25:04,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86507011] [2023-12-22 02:25:04,373 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:25:04,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:25:04,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:25:04,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:25:04,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:25:04,374 INFO L87 Difference]: Start difference. First operand 65887 states and 79074 transitions. Second operand has 26 states, 26 states have (on average 15.692307692307692) internal successors, (408), 26 states have internal predecessors, (408), 0 states have call successors, (0), 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 02:25:21,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:25:21,771 INFO L93 Difference]: Finished difference Result 181817 states and 216003 transitions. [2023-12-22 02:25:21,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 02:25:21,772 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 15.692307692307692) internal successors, (408), 26 states have internal predecessors, (408), 0 states have call successors, (0), 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 212 [2023-12-22 02:25:21,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:25:21,971 INFO L225 Difference]: With dead ends: 181817 [2023-12-22 02:25:21,971 INFO L226 Difference]: Without dead ends: 169143 [2023-12-22 02:25:21,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 02:25:21,993 INFO L413 NwaCegarLoop]: 1721 mSDtfsCounter, 5709 mSDsluCounter, 21610 mSDsCounter, 0 mSdLazyCounter, 2889 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5709 SdHoareTripleChecker+Valid, 23331 SdHoareTripleChecker+Invalid, 2909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:25:21,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5709 Valid, 23331 Invalid, 2909 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 2889 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-22 02:25:22,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169143 states. [2023-12-22 02:25:32,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169143 to 142179. [2023-12-22 02:25:32,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142179 states, 142177 states have (on average 1.1921618827236473) internal successors, (169498), 142178 states have internal predecessors, (169498), 0 states have call successors, (0), 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 02:25:32,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142179 states to 142179 states and 169498 transitions. [2023-12-22 02:25:32,636 INFO L78 Accepts]: Start accepts. Automaton has 142179 states and 169498 transitions. Word has length 212 [2023-12-22 02:25:32,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:25:32,636 INFO L495 AbstractCegarLoop]: Abstraction has 142179 states and 169498 transitions. [2023-12-22 02:25:32,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 15.692307692307692) internal successors, (408), 26 states have internal predecessors, (408), 0 states have call successors, (0), 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 02:25:32,636 INFO L276 IsEmpty]: Start isEmpty. Operand 142179 states and 169498 transitions. [2023-12-22 02:25:32,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-22 02:25:32,650 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:25:32,650 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:25:32,656 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 (47)] Forceful destruction successful, exit code 0 [2023-12-22 02:25:32,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:25:32,851 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:25:32,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:25:32,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1523904933, now seen corresponding path program 1 times [2023-12-22 02:25:32,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:25:32,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178106993] [2023-12-22 02:25:32,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:25:32,852 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 02:25:32,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:25:32,853 INFO L229 MonitoredProcess]: Starting monitored process 48 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 02:25:32,854 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 (48)] Waiting until timeout for monitored process [2023-12-22 02:25:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:25:33,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 02:25:33,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:25:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 49 proven. 109 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:34,806 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:25:35,735 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 49 proven. 109 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:25:35,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:25:35,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178106993] [2023-12-22 02:25:35,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178106993] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:25:35,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:25:35,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 02:25:35,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628355870] [2023-12-22 02:25:35,736 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:25:35,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:25:35,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:25:35,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:25:35,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:25:35,737 INFO L87 Difference]: Start difference. First operand 142179 states and 169498 transitions. Second operand has 26 states, 26 states have (on average 15.307692307692308) internal successors, (398), 26 states have internal predecessors, (398), 0 states have call successors, (0), 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 02:25:57,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:25:57,176 INFO L93 Difference]: Finished difference Result 260485 states and 309677 transitions. [2023-12-22 02:25:57,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 02:25:57,177 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 15.307692307692308) internal successors, (398), 26 states have internal predecessors, (398), 0 states have call successors, (0), 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 212 [2023-12-22 02:25:57,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:25:57,483 INFO L225 Difference]: With dead ends: 260485 [2023-12-22 02:25:57,483 INFO L226 Difference]: Without dead ends: 229259 [2023-12-22 02:25:57,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 02:25:57,538 INFO L413 NwaCegarLoop]: 1744 mSDtfsCounter, 5699 mSDsluCounter, 26661 mSDsCounter, 0 mSdLazyCounter, 3453 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5699 SdHoareTripleChecker+Valid, 28405 SdHoareTripleChecker+Invalid, 3473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:25:57,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5699 Valid, 28405 Invalid, 3473 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 3453 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-22 02:25:57,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229259 states.