/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 12:29:20,797 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 12:29:20,872 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 12:29:20,876 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 12:29:20,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 12:29:20,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 12:29:20,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 12:29:20,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 12:29:20,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 12:29:20,899 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 12:29:20,899 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 12:29:20,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 12:29:20,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 12:29:20,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 12:29:20,901 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 12:29:20,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 12:29:20,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 12:29:20,902 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 12:29:20,902 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 12:29:20,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 12:29:20,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 12:29:20,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 12:29:20,908 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 12:29:20,908 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 12:29:20,909 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 12:29:20,909 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 12:29:20,909 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 12:29:20,909 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 12:29:20,910 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 12:29:20,910 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 12:29:20,911 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 12:29:20,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 12:29:20,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 12:29:20,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 12:29:20,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 12:29:20,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 12:29:20,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 12:29:20,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 12:29:20,913 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 12:29:20,913 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 12:29:20,913 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 12:29:20,913 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 12:29:20,913 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 12:29:20,913 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 12:29:20,914 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 12:29:20,914 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 12:29:20,914 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 12:29:21,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 12:29:21,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 12:29:21,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 12:29:21,132 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 12:29:21,132 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 12:29:21,134 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label32.c [2023-12-22 12:29:22,302 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 12:29:22,597 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 12:29:22,598 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label32.c [2023-12-22 12:29:22,614 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5eca35882/a6a9f0e58519474f98097b90194502b6/FLAG8e8bd715a [2023-12-22 12:29:22,629 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5eca35882/a6a9f0e58519474f98097b90194502b6 [2023-12-22 12:29:22,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 12:29:22,634 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 12:29:22,637 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 12:29:22,637 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 12:29:22,641 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 12:29:22,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:29:22" (1/1) ... [2023-12-22 12:29:22,643 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53098106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:29:22, skipping insertion in model container [2023-12-22 12:29:22,643 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:29:22" (1/1) ... [2023-12-22 12:29:22,696 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 12:29:22,903 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label32.c[5661,5674] [2023-12-22 12:29:23,098 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 12:29:23,109 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 12:29:23,147 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label32.c[5661,5674] [2023-12-22 12:29:23,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 12:29:23,269 INFO L206 MainTranslator]: Completed translation [2023-12-22 12:29:23,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:29:23 WrapperNode [2023-12-22 12:29:23,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 12:29:23,271 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 12:29:23,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 12:29:23,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 12:29:23,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:29:23" (1/1) ... [2023-12-22 12:29:23,342 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:29:23" (1/1) ... [2023-12-22 12:29:23,403 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 857 [2023-12-22 12:29:23,404 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 12:29:23,405 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 12:29:23,405 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 12:29:23,405 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 12:29:23,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:29:23" (1/1) ... [2023-12-22 12:29:23,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:29:23" (1/1) ... [2023-12-22 12:29:23,421 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:29:23" (1/1) ... [2023-12-22 12:29:23,440 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 12:29:23,440 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:29:23" (1/1) ... [2023-12-22 12:29:23,440 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:29:23" (1/1) ... [2023-12-22 12:29:23,473 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:29:23" (1/1) ... [2023-12-22 12:29:23,483 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:29:23" (1/1) ... [2023-12-22 12:29:23,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:29:23" (1/1) ... [2023-12-22 12:29:23,507 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:29:23" (1/1) ... [2023-12-22 12:29:23,512 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 12:29:23,513 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 12:29:23,514 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 12:29:23,514 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 12:29:23,514 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:29:23" (1/1) ... [2023-12-22 12:29:23,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 12:29:23,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 12:29:23,545 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 12:29:23,574 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 12:29:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 12:29:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 12:29:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 12:29:23,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 12:29:23,653 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 12:29:23,655 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 12:29:26,617 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 12:29:26,664 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 12:29:26,665 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 12:29:26,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:29:26 BoogieIcfgContainer [2023-12-22 12:29:26,665 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 12:29:26,667 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 12:29:26,667 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 12:29:26,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 12:29:26,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:29:22" (1/3) ... [2023-12-22 12:29:26,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47fdecbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:29:26, skipping insertion in model container [2023-12-22 12:29:26,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:29:23" (2/3) ... [2023-12-22 12:29:26,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47fdecbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:29:26, skipping insertion in model container [2023-12-22 12:29:26,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:29:26" (3/3) ... [2023-12-22 12:29:26,672 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label32.c [2023-12-22 12:29:26,686 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 12:29:26,686 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 12:29:26,743 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 12:29:26,748 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;@63fd750a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 12:29:26,748 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 12:29:26,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:26,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-22 12:29:26,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:29:26,763 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] [2023-12-22 12:29:26,763 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:29:26,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:29:26,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1505057653, now seen corresponding path program 1 times [2023-12-22 12:29:26,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:29:26,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878229247] [2023-12-22 12:29:26,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:29:26,785 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 12:29:26,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:29:26,788 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 12:29:26,811 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 12:29:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:29:26,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 12:29:26,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:29:26,890 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 12:29:26,891 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:29:26,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:29:26,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878229247] [2023-12-22 12:29:26,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878229247] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:29:26,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:29:26,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:29:26,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10410723] [2023-12-22 12:29:26,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:29:26,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 12:29:26,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:29:26,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 12:29:26,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 12:29:26,927 INFO L87 Difference]: Start difference. First operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 0 states have call successors, (0), 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 27.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:26,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:29:26,963 INFO L93 Difference]: Finished difference Result 365 states and 719 transitions. [2023-12-22 12:29:26,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 12:29:26,965 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-22 12:29:26,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:29:26,973 INFO L225 Difference]: With dead ends: 365 [2023-12-22 12:29:26,973 INFO L226 Difference]: Without dead ends: 181 [2023-12-22 12:29:26,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 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 12:29:26,978 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 12:29:26,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 295 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 12:29:26,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-22 12:29:27,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2023-12-22 12:29:27,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.6388888888888888) internal successors, (295), 180 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:27,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 295 transitions. [2023-12-22 12:29:27,017 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 295 transitions. Word has length 54 [2023-12-22 12:29:27,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:29:27,017 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 295 transitions. [2023-12-22 12:29:27,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:27,018 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 295 transitions. [2023-12-22 12:29:27,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-22 12:29:27,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:29:27,019 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] [2023-12-22 12:29:27,023 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 12:29:27,220 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 12:29:27,220 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:29:27,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:29:27,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1515811875, now seen corresponding path program 1 times [2023-12-22 12:29:27,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:29:27,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647753459] [2023-12-22 12:29:27,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:29:27,222 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 12:29:27,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:29:27,223 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 12:29:27,226 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 12:29:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:29:27,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:29:27,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:29:27,381 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 12:29:27,382 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:29:27,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:29:27,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647753459] [2023-12-22 12:29:27,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647753459] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:29:27,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:29:27,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:29:27,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532731169] [2023-12-22 12:29:27,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:29:27,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:29:27,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:29:27,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:29:27,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:29:27,387 INFO L87 Difference]: Start difference. First operand 181 states and 295 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:29,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:29:29,993 INFO L93 Difference]: Finished difference Result 539 states and 882 transitions. [2023-12-22 12:29:29,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:29:29,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-22 12:29:29,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:29:29,996 INFO L225 Difference]: With dead ends: 539 [2023-12-22 12:29:29,997 INFO L226 Difference]: Without dead ends: 359 [2023-12-22 12:29:29,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 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 12:29:29,998 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 136 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-22 12:29:29,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 64 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-22 12:29:30,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-12-22 12:29:30,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2023-12-22 12:29:30,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 1.488826815642458) internal successors, (533), 358 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:30,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 533 transitions. [2023-12-22 12:29:30,020 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 533 transitions. Word has length 54 [2023-12-22 12:29:30,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:29:30,020 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 533 transitions. [2023-12-22 12:29:30,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:30,021 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 533 transitions. [2023-12-22 12:29:30,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-22 12:29:30,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:29:30,024 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:29:30,035 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 12:29:30,226 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 12:29:30,227 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:29:30,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:29:30,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1825084560, now seen corresponding path program 1 times [2023-12-22 12:29:30,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:29:30,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590959039] [2023-12-22 12:29:30,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:29:30,229 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 12:29:30,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:29:30,230 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 12:29:30,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 12:29:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:29:30,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:29:30,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:29:30,418 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 12:29:30,418 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:29:30,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:29:30,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1590959039] [2023-12-22 12:29:30,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1590959039] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:29:30,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:29:30,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:29:30,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254467598] [2023-12-22 12:29:30,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:29:30,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:29:30,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:29:30,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:29:30,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:29:30,421 INFO L87 Difference]: Start difference. First operand 359 states and 533 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 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 12:29:33,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:29:33,156 INFO L93 Difference]: Finished difference Result 1073 states and 1596 transitions. [2023-12-22 12:29:33,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:29:33,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 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 12:29:33,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:29:33,161 INFO L225 Difference]: With dead ends: 1073 [2023-12-22 12:29:33,161 INFO L226 Difference]: Without dead ends: 715 [2023-12-22 12:29:33,162 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 12:29:33,163 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 115 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-22 12:29:33,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 100 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-22 12:29:33,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2023-12-22 12:29:33,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2023-12-22 12:29:33,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 714 states have (on average 1.3459383753501402) internal successors, (961), 714 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:33,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 961 transitions. [2023-12-22 12:29:33,186 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 961 transitions. Word has length 119 [2023-12-22 12:29:33,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:29:33,187 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 961 transitions. [2023-12-22 12:29:33,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 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 12:29:33,187 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 961 transitions. [2023-12-22 12:29:33,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-22 12:29:33,190 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:29:33,191 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:29:33,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-22 12:29:33,394 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 12:29:33,394 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:29:33,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:29:33,395 INFO L85 PathProgramCache]: Analyzing trace with hash -2070455406, now seen corresponding path program 1 times [2023-12-22 12:29:33,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:29:33,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578445802] [2023-12-22 12:29:33,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:29:33,396 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 12:29:33,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:29:33,397 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 12:29:33,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 12:29:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:29:33,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:29:33,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:29:33,611 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 12:29:33,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:29:33,612 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:29:33,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578445802] [2023-12-22 12:29:33,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [578445802] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:29:33,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:29:33,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:29:33,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692507656] [2023-12-22 12:29:33,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:29:33,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:29:33,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:29:33,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:29:33,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:29:33,615 INFO L87 Difference]: Start difference. First operand 715 states and 961 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 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 12:29:36,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:29:36,368 INFO L93 Difference]: Finished difference Result 1963 states and 2654 transitions. [2023-12-22 12:29:36,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:29:36,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 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 12:29:36,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:29:36,374 INFO L225 Difference]: With dead ends: 1963 [2023-12-22 12:29:36,374 INFO L226 Difference]: Without dead ends: 1249 [2023-12-22 12:29:36,376 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 12:29:36,377 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 129 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-22 12:29:36,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 87 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-22 12:29:36,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2023-12-22 12:29:36,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1249. [2023-12-22 12:29:36,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1248 states have (on average 1.2459935897435896) internal successors, (1555), 1248 states have internal predecessors, (1555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:36,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1555 transitions. [2023-12-22 12:29:36,403 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1555 transitions. Word has length 122 [2023-12-22 12:29:36,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:29:36,404 INFO L495 AbstractCegarLoop]: Abstraction has 1249 states and 1555 transitions. [2023-12-22 12:29:36,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 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 12:29:36,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1555 transitions. [2023-12-22 12:29:36,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-22 12:29:36,409 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:29:36,409 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:29:36,414 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 12:29:36,611 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 12:29:36,611 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:29:36,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:29:36,612 INFO L85 PathProgramCache]: Analyzing trace with hash 320891111, now seen corresponding path program 1 times [2023-12-22 12:29:36,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:29:36,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119885034] [2023-12-22 12:29:36,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:29:36,614 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 12:29:36,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:29:36,615 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 12:29:36,617 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 12:29:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:29:36,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 12:29:36,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:29:37,507 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-22 12:29:37,507 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:29:37,507 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:29:37,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2119885034] [2023-12-22 12:29:37,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2119885034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:29:37,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:29:37,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:29:37,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707459170] [2023-12-22 12:29:37,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:29:37,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 12:29:37,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:29:37,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 12:29:37,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 12:29:37,510 INFO L87 Difference]: Start difference. First operand 1249 states and 1555 transitions. Second operand has 4 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:40,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:29:40,052 INFO L93 Difference]: Finished difference Result 2170 states and 2740 transitions. [2023-12-22 12:29:40,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 12:29:40,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2023-12-22 12:29:40,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:29:40,057 INFO L225 Difference]: With dead ends: 2170 [2023-12-22 12:29:40,057 INFO L226 Difference]: Without dead ends: 1071 [2023-12-22 12:29:40,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 12:29:40,059 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 101 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-22 12:29:40,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 111 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-22 12:29:40,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-22 12:29:40,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2023-12-22 12:29:40,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.2392523364485981) internal successors, (1326), 1070 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:40,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1326 transitions. [2023-12-22 12:29:40,079 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1326 transitions. Word has length 203 [2023-12-22 12:29:40,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:29:40,079 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1326 transitions. [2023-12-22 12:29:40,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:40,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1326 transitions. [2023-12-22 12:29:40,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-12-22 12:29:40,082 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:29:40,082 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:29:40,087 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 12:29:40,286 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 12:29:40,287 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:29:40,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:29:40,287 INFO L85 PathProgramCache]: Analyzing trace with hash -2108342522, now seen corresponding path program 1 times [2023-12-22 12:29:40,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:29:40,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2055830112] [2023-12-22 12:29:40,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:29:40,289 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 12:29:40,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:29:40,290 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 12:29:40,306 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 12:29:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:29:40,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:29:40,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:29:41,124 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-22 12:29:41,125 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:29:41,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:29:41,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2055830112] [2023-12-22 12:29:41,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2055830112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:29:41,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:29:41,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 12:29:41,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517556797] [2023-12-22 12:29:41,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:29:41,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:29:41,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:29:41,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:29:41,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:29:41,127 INFO L87 Difference]: Start difference. First operand 1071 states and 1326 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:43,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:29:43,226 INFO L93 Difference]: Finished difference Result 1785 states and 2286 transitions. [2023-12-22 12:29:43,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:29:43,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 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 229 [2023-12-22 12:29:43,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:29:43,232 INFO L225 Difference]: With dead ends: 1785 [2023-12-22 12:29:43,232 INFO L226 Difference]: Without dead ends: 1071 [2023-12-22 12:29:43,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 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 12:29:43,234 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 73 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-22 12:29:43,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 121 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-22 12:29:43,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-22 12:29:43,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2023-12-22 12:29:43,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.233644859813084) internal successors, (1320), 1070 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:43,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1320 transitions. [2023-12-22 12:29:43,254 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1320 transitions. Word has length 229 [2023-12-22 12:29:43,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:29:43,255 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1320 transitions. [2023-12-22 12:29:43,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:43,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1320 transitions. [2023-12-22 12:29:43,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2023-12-22 12:29:43,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:29:43,259 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 12:29:43,264 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 12:29:43,463 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 12:29:43,464 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:29:43,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:29:43,464 INFO L85 PathProgramCache]: Analyzing trace with hash 56202581, now seen corresponding path program 1 times [2023-12-22 12:29:43,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:29:43,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577286243] [2023-12-22 12:29:43,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:29:43,465 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 12:29:43,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:29:43,467 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 12:29:43,467 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 12:29:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:29:43,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:29:43,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:29:44,121 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 158 proven. 135 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 12:29:44,122 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:29:44,914 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 12:29:44,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:29:44,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577286243] [2023-12-22 12:29:44,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577286243] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:29:44,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:29:44,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 12:29:44,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655487691] [2023-12-22 12:29:44,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:29:44,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:29:44,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:29:44,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:29:44,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 12:29:44,917 INFO L87 Difference]: Start difference. First operand 1071 states and 1320 transitions. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 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 12:29:51,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:29:51,669 INFO L93 Difference]: Finished difference Result 2141 states and 2811 transitions. [2023-12-22 12:29:51,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:29:51,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 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 333 [2023-12-22 12:29:51,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:29:51,674 INFO L225 Difference]: With dead ends: 2141 [2023-12-22 12:29:51,674 INFO L226 Difference]: Without dead ends: 1427 [2023-12-22 12:29:51,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 661 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 12:29:51,677 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 132 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-12-22 12:29:51,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 57 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-12-22 12:29:51,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2023-12-22 12:29:51,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1427. [2023-12-22 12:29:51,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 1426 states have (on average 1.238429172510519) internal successors, (1766), 1426 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:51,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 1766 transitions. [2023-12-22 12:29:51,702 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 1766 transitions. Word has length 333 [2023-12-22 12:29:51,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:29:51,703 INFO L495 AbstractCegarLoop]: Abstraction has 1427 states and 1766 transitions. [2023-12-22 12:29:51,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 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 12:29:51,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 1766 transitions. [2023-12-22 12:29:51,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2023-12-22 12:29:51,710 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:29:51,711 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:29:51,720 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 12:29:51,920 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 12:29:51,921 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:29:51,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:29:51,921 INFO L85 PathProgramCache]: Analyzing trace with hash 55537775, now seen corresponding path program 1 times [2023-12-22 12:29:51,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:29:51,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104256514] [2023-12-22 12:29:51,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:29:51,923 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 12:29:51,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:29:51,926 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 12:29:51,957 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 12:29:52,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:29:52,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:29:52,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:29:52,568 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 435 proven. 159 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-12-22 12:29:52,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:29:53,238 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 594 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-12-22 12:29:53,239 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:29:53,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104256514] [2023-12-22 12:29:53,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104256514] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:29:53,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:29:53,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 12:29:53,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219111461] [2023-12-22 12:29:53,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:29:53,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:29:53,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:29:53,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:29:53,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 12:29:53,242 INFO L87 Difference]: Start difference. First operand 1427 states and 1766 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:59,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:29:59,106 INFO L93 Difference]: Finished difference Result 3209 states and 4149 transitions. [2023-12-22 12:29:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:29:59,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 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 444 [2023-12-22 12:29:59,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:29:59,113 INFO L225 Difference]: With dead ends: 3209 [2023-12-22 12:29:59,113 INFO L226 Difference]: Without dead ends: 2139 [2023-12-22 12:29:59,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 886 GetRequests, 883 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 12:29:59,115 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 113 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-12-22 12:29:59,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 245 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-12-22 12:29:59,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2023-12-22 12:29:59,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2139. [2023-12-22 12:29:59,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2138 states have (on average 1.2464920486435922) internal successors, (2665), 2138 states have internal predecessors, (2665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:59,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 2665 transitions. [2023-12-22 12:29:59,151 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 2665 transitions. Word has length 444 [2023-12-22 12:29:59,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:29:59,152 INFO L495 AbstractCegarLoop]: Abstraction has 2139 states and 2665 transitions. [2023-12-22 12:29:59,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:29:59,152 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 2665 transitions. [2023-12-22 12:29:59,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2023-12-22 12:29:59,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:29:59,156 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:29:59,164 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 12:29:59,364 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 12:29:59,365 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:29:59,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:29:59,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1011164345, now seen corresponding path program 1 times [2023-12-22 12:29:59,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:29:59,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856230331] [2023-12-22 12:29:59,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:29:59,367 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 12:29:59,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:29:59,368 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 12:29:59,369 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 12:29:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:29:59,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 12:29:59,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:30:00,384 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 0 proven. 671 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-12-22 12:30:00,384 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:30:05,532 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 493 proven. 178 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-12-22 12:30:05,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:30:05,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856230331] [2023-12-22 12:30:05,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1856230331] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:30:05,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:30:05,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-22 12:30:05,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120772633] [2023-12-22 12:30:05,533 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:30:05,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 12:30:05,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:30:05,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 12:30:05,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-22 12:30:05,536 INFO L87 Difference]: Start difference. First operand 2139 states and 2665 transitions. Second operand has 8 states, 8 states have (on average 70.875) internal successors, (567), 8 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:30:11,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:30:13,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:30:17,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:30:19,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:30:54,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:30:58,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:31:02,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:31:02,591 INFO L93 Difference]: Finished difference Result 6351 states and 8189 transitions. [2023-12-22 12:31:02,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-22 12:31:02,595 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 70.875) internal successors, (567), 8 states have internal predecessors, (567), 0 states have call successors, (0), 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 460 [2023-12-22 12:31:02,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:31:02,608 INFO L225 Difference]: With dead ends: 6351 [2023-12-22 12:31:02,608 INFO L226 Difference]: Without dead ends: 4569 [2023-12-22 12:31:02,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 926 GetRequests, 916 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:31:02,611 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 1204 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 3707 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 4260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 3707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.3s IncrementalHoareTripleChecker+Time [2023-12-22 12:31:02,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 81 Invalid, 4260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 3707 Invalid, 0 Unknown, 0 Unchecked, 56.3s Time] [2023-12-22 12:31:02,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4569 states. [2023-12-22 12:31:02,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4569 to 3919. [2023-12-22 12:31:02,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3919 states, 3918 states have (on average 1.2559979581419092) internal successors, (4921), 3918 states have internal predecessors, (4921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:31:02,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3919 states to 3919 states and 4921 transitions. [2023-12-22 12:31:02,680 INFO L78 Accepts]: Start accepts. Automaton has 3919 states and 4921 transitions. Word has length 460 [2023-12-22 12:31:02,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:31:02,681 INFO L495 AbstractCegarLoop]: Abstraction has 3919 states and 4921 transitions. [2023-12-22 12:31:02,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 70.875) internal successors, (567), 8 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:31:02,681 INFO L276 IsEmpty]: Start isEmpty. Operand 3919 states and 4921 transitions. [2023-12-22 12:31:02,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2023-12-22 12:31:02,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:31:02,686 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:31:02,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-22 12:31:02,892 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 12:31:02,892 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:31:02,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:31:02,893 INFO L85 PathProgramCache]: Analyzing trace with hash -558497612, now seen corresponding path program 1 times [2023-12-22 12:31:02,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:31:02,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953195366] [2023-12-22 12:31:02,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:31:02,894 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 12:31:02,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:31:02,895 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 12:31:02,896 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 12:31:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:31:03,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 12:31:03,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:31:04,706 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 511 proven. 277 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-22 12:31:04,707 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:31:12,328 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 759 proven. 29 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-22 12:31:12,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:31:12,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953195366] [2023-12-22 12:31:12,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953195366] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:31:12,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:31:12,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-22 12:31:12,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276689035] [2023-12-22 12:31:12,330 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:31:12,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 12:31:12,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:31:12,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 12:31:12,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-22 12:31:12,334 INFO L87 Difference]: Start difference. First operand 3919 states and 4921 transitions. Second operand has 9 states, 9 states have (on average 86.88888888888889) internal successors, (782), 9 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:31:49,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:31:49,313 INFO L93 Difference]: Finished difference Result 8458 states and 10839 transitions. [2023-12-22 12:31:49,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 12:31:49,313 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 86.88888888888889) internal successors, (782), 9 states have internal predecessors, (782), 0 states have call successors, (0), 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 469 [2023-12-22 12:31:49,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:31:49,324 INFO L225 Difference]: With dead ends: 8458 [2023-12-22 12:31:49,324 INFO L226 Difference]: Without dead ends: 5165 [2023-12-22 12:31:49,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 938 GetRequests, 930 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-22 12:31:49,327 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 669 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2751 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 3069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 2751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2023-12-22 12:31:49,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 57 Invalid, 3069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 2751 Invalid, 0 Unknown, 0 Unchecked, 36.6s Time] [2023-12-22 12:31:49,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5165 states. [2023-12-22 12:31:49,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5165 to 4987. [2023-12-22 12:31:49,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4987 states, 4986 states have (on average 1.119334135579623) internal successors, (5581), 4986 states have internal predecessors, (5581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:31:49,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4987 states to 4987 states and 5581 transitions. [2023-12-22 12:31:49,408 INFO L78 Accepts]: Start accepts. Automaton has 4987 states and 5581 transitions. Word has length 469 [2023-12-22 12:31:49,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:31:49,409 INFO L495 AbstractCegarLoop]: Abstraction has 4987 states and 5581 transitions. [2023-12-22 12:31:49,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 86.88888888888889) internal successors, (782), 9 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:31:49,410 INFO L276 IsEmpty]: Start isEmpty. Operand 4987 states and 5581 transitions. [2023-12-22 12:31:49,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2023-12-22 12:31:49,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:31:49,416 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 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 12:31:49,426 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-12-22 12:31:49,623 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 12:31:49,624 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:31:49,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:31:49,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1221136279, now seen corresponding path program 1 times [2023-12-22 12:31:49,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:31:49,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031214251] [2023-12-22 12:31:49,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:31:49,627 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 12:31:49,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:31:49,628 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 12:31:49,629 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 12:31:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:31:49,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-22 12:31:49,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:31:56,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1379 backedges. 368 proven. 898 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-12-22 12:31:56,192 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:32:16,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1379 backedges. 998 proven. 268 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-12-22 12:32:16,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:32:16,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031214251] [2023-12-22 12:32:16,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031214251] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:32:16,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:32:16,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-12-22 12:32:16,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809538546] [2023-12-22 12:32:16,031 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:32:16,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-22 12:32:16,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:32:16,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-22 12:32:16,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2023-12-22 12:32:16,035 INFO L87 Difference]: Start difference. First operand 4987 states and 5581 transitions. Second operand has 21 states, 21 states have (on average 53.904761904761905) internal successors, (1132), 21 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:32:22,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:32:22,130 INFO L93 Difference]: Finished difference Result 9599 states and 10793 transitions. [2023-12-22 12:32:22,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-22 12:32:22,131 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 53.904761904761905) internal successors, (1132), 21 states have internal predecessors, (1132), 0 states have call successors, (0), 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 708 [2023-12-22 12:32:22,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:32:22,144 INFO L225 Difference]: With dead ends: 9599 [2023-12-22 12:32:22,144 INFO L226 Difference]: Without dead ends: 5325 [2023-12-22 12:32:22,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1414 GetRequests, 1395 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2023-12-22 12:32:22,149 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 203 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 4706 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 4735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 4706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-12-22 12:32:22,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 107 Invalid, 4735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 4706 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-12-22 12:32:22,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5325 states. [2023-12-22 12:32:22,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5325 to 4800. [2023-12-22 12:32:22,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4800 states, 4799 states have (on average 1.1227339028964367) internal successors, (5388), 4799 states have internal predecessors, (5388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:32:22,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4800 states to 4800 states and 5388 transitions. [2023-12-22 12:32:22,230 INFO L78 Accepts]: Start accepts. Automaton has 4800 states and 5388 transitions. Word has length 708 [2023-12-22 12:32:22,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:32:22,231 INFO L495 AbstractCegarLoop]: Abstraction has 4800 states and 5388 transitions. [2023-12-22 12:32:22,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 53.904761904761905) internal successors, (1132), 21 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:32:22,232 INFO L276 IsEmpty]: Start isEmpty. Operand 4800 states and 5388 transitions. [2023-12-22 12:32:22,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2023-12-22 12:32:22,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:32:22,238 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:32:22,248 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 12:32:22,447 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 12:32:22,448 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:32:22,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:32:22,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1932343530, now seen corresponding path program 1 times [2023-12-22 12:32:22,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:32:22,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348018206] [2023-12-22 12:32:22,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:32:22,451 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 12:32:22,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:32:22,452 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 12:32:22,453 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 12:32:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:32:22,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 798 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 12:32:22,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:32:28,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 820 proven. 420 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-12-22 12:32:28,311 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:32:39,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 1204 proven. 36 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-12-22 12:32:39,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:32:39,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348018206] [2023-12-22 12:32:39,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348018206] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:32:39,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:32:39,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-12-22 12:32:39,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521104398] [2023-12-22 12:32:39,738 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:32:39,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-22 12:32:39,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:32:39,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-22 12:32:39,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2023-12-22 12:32:39,742 INFO L87 Difference]: Start difference. First operand 4800 states and 5388 transitions. Second operand has 20 states, 20 states have (on average 47.8) internal successors, (956), 20 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:32:47,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:32:47,897 INFO L93 Difference]: Finished difference Result 9749 states and 10932 transitions. [2023-12-22 12:32:47,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-22 12:32:47,898 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 47.8) internal successors, (956), 20 states have internal predecessors, (956), 0 states have call successors, (0), 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 726 [2023-12-22 12:32:47,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:32:47,909 INFO L225 Difference]: With dead ends: 9749 [2023-12-22 12:32:47,909 INFO L226 Difference]: Without dead ends: 4932 [2023-12-22 12:32:47,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1464 GetRequests, 1436 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=264, Invalid=606, Unknown=0, NotChecked=0, Total=870 [2023-12-22 12:32:47,913 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1463 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 4915 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 5041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 4915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-12-22 12:32:47,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1463 Valid, 79 Invalid, 5041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 4915 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-12-22 12:32:47,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4932 states. [2023-12-22 12:32:47,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4932 to 4599. [2023-12-22 12:32:47,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4599 states, 4598 states have (on average 1.0967812092214007) internal successors, (5043), 4598 states have internal predecessors, (5043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:32:47,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4599 states to 4599 states and 5043 transitions. [2023-12-22 12:32:47,955 INFO L78 Accepts]: Start accepts. Automaton has 4599 states and 5043 transitions. Word has length 726 [2023-12-22 12:32:47,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:32:47,955 INFO L495 AbstractCegarLoop]: Abstraction has 4599 states and 5043 transitions. [2023-12-22 12:32:47,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 47.8) internal successors, (956), 20 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:32:47,956 INFO L276 IsEmpty]: Start isEmpty. Operand 4599 states and 5043 transitions. [2023-12-22 12:32:47,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 804 [2023-12-22 12:32:47,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:32:47,963 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:32:47,976 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 12:32:48,168 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 12:32:48,169 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:32:48,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:32:48,169 INFO L85 PathProgramCache]: Analyzing trace with hash 232577003, now seen corresponding path program 1 times [2023-12-22 12:32:48,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:32:48,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47463967] [2023-12-22 12:32:48,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:32:48,172 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 12:32:48,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:32:48,173 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 12:32:48,173 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 12:32:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:32:48,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-22 12:32:48,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:32:54,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1834 backedges. 452 proven. 1115 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-12-22 12:32:54,524 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:33:42,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1834 backedges. 1567 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-12-22 12:33:42,626 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:33:42,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47463967] [2023-12-22 12:33:42,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47463967] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:33:42,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:33:42,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 21 [2023-12-22 12:33:42,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390034978] [2023-12-22 12:33:42,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:33:42,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-22 12:33:42,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:33:42,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-22 12:33:42,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=277, Unknown=0, NotChecked=0, Total=420 [2023-12-22 12:33:42,630 INFO L87 Difference]: Start difference. First operand 4599 states and 5043 transitions. Second operand has 11 states, 11 states have (on average 55.90909090909091) internal successors, (615), 11 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:33:52,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:33:52,395 INFO L93 Difference]: Finished difference Result 8805 states and 9693 transitions. [2023-12-22 12:33:52,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 12:33:52,396 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 55.90909090909091) internal successors, (615), 11 states have internal predecessors, (615), 0 states have call successors, (0), 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 803 [2023-12-22 12:33:52,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:33:52,404 INFO L225 Difference]: With dead ends: 8805 [2023-12-22 12:33:52,405 INFO L226 Difference]: Without dead ends: 4671 [2023-12-22 12:33:52,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1604 GetRequests, 1585 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=143, Invalid=277, Unknown=0, NotChecked=0, Total=420 [2023-12-22 12:33:52,409 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 18 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2023-12-22 12:33:52,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 60 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2023-12-22 12:33:52,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4671 states. [2023-12-22 12:33:52,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4671 to 4671. [2023-12-22 12:33:52,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4671 states, 4670 states have (on average 1.095289079229122) internal successors, (5115), 4670 states have internal predecessors, (5115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:33:52,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4671 states to 4671 states and 5115 transitions. [2023-12-22 12:33:52,460 INFO L78 Accepts]: Start accepts. Automaton has 4671 states and 5115 transitions. Word has length 803 [2023-12-22 12:33:52,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:33:52,461 INFO L495 AbstractCegarLoop]: Abstraction has 4671 states and 5115 transitions. [2023-12-22 12:33:52,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 55.90909090909091) internal successors, (615), 11 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:33:52,462 INFO L276 IsEmpty]: Start isEmpty. Operand 4671 states and 5115 transitions. [2023-12-22 12:33:52,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 876 [2023-12-22 12:33:52,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:33:52,470 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:33:52,480 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 12:33:52,676 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 12:33:52,677 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:33:52,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:33:52,678 INFO L85 PathProgramCache]: Analyzing trace with hash -705541172, now seen corresponding path program 1 times [2023-12-22 12:33:52,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:33:52,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697547138] [2023-12-22 12:33:52,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:33:52,680 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 12:33:52,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:33:52,682 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 12:33:52,690 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 (15)] Waiting until timeout for monitored process [2023-12-22 12:33:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:33:52,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:33:52,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:33:53,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2318 backedges. 370 proven. 0 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2023-12-22 12:33:53,053 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:33:53,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:33:53,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697547138] [2023-12-22 12:33:53,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [697547138] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:33:53,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:33:53,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:33:53,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049220402] [2023-12-22 12:33:53,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:33:53,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:33:53,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:33:53,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:33:53,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:33:53,055 INFO L87 Difference]: Start difference. First operand 4671 states and 5115 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:33:54,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:33:54,978 INFO L93 Difference]: Finished difference Result 6097 states and 6794 transitions. [2023-12-22 12:33:54,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:33:54,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 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 875 [2023-12-22 12:33:54,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:33:54,992 INFO L225 Difference]: With dead ends: 6097 [2023-12-22 12:33:54,992 INFO L226 Difference]: Without dead ends: 6095 [2023-12-22 12:33:54,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 874 GetRequests, 873 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 12:33:54,995 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 137 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-22 12:33:54,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 206 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-22 12:33:55,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6095 states. [2023-12-22 12:33:55,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6095 to 5561. [2023-12-22 12:33:55,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5561 states, 5560 states have (on average 1.117086330935252) internal successors, (6211), 5560 states have internal predecessors, (6211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:33:55,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5561 states to 5561 states and 6211 transitions. [2023-12-22 12:33:55,067 INFO L78 Accepts]: Start accepts. Automaton has 5561 states and 6211 transitions. Word has length 875 [2023-12-22 12:33:55,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:33:55,067 INFO L495 AbstractCegarLoop]: Abstraction has 5561 states and 6211 transitions. [2023-12-22 12:33:55,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:33:55,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5561 states and 6211 transitions. [2023-12-22 12:33:55,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 899 [2023-12-22 12:33:55,076 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:33:55,076 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:55,084 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 12:33:55,283 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 12:33:55,284 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:33:55,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:33:55,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1213326782, now seen corresponding path program 1 times [2023-12-22 12:33:55,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:33:55,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306538038] [2023-12-22 12:33:55,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:33:55,288 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 12:33:55,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:33:55,289 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 12:33:55,295 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 12:33:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:33:55,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:33:55,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:33:56,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2809 backedges. 1453 proven. 0 refuted. 0 times theorem prover too weak. 1356 trivial. 0 not checked. [2023-12-22 12:33:56,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:33:56,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:33:56,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306538038] [2023-12-22 12:33:56,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1306538038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:33:56,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:33:56,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:33:56,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495052092] [2023-12-22 12:33:56,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:33:56,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:33:56,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:33:56,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:33:56,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:33:56,038 INFO L87 Difference]: Start difference. First operand 5561 states and 6211 transitions. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:33:57,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:33:57,904 INFO L93 Difference]: Finished difference Result 10765 states and 12070 transitions. [2023-12-22 12:33:57,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:33:57,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 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 898 [2023-12-22 12:33:57,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:33:57,919 INFO L225 Difference]: With dead ends: 10765 [2023-12-22 12:33:57,919 INFO L226 Difference]: Without dead ends: 5739 [2023-12-22 12:33:57,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 897 GetRequests, 896 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 12:33:57,924 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 50 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-22 12:33:57,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 243 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-22 12:33:57,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5739 states. [2023-12-22 12:33:58,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5739 to 5739. [2023-12-22 12:33:58,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5739 states, 5738 states have (on average 1.1139769954688044) internal successors, (6392), 5738 states have internal predecessors, (6392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:33:58,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5739 states to 5739 states and 6392 transitions. [2023-12-22 12:33:58,027 INFO L78 Accepts]: Start accepts. Automaton has 5739 states and 6392 transitions. Word has length 898 [2023-12-22 12:33:58,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:33:58,028 INFO L495 AbstractCegarLoop]: Abstraction has 5739 states and 6392 transitions. [2023-12-22 12:33:58,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:33:58,028 INFO L276 IsEmpty]: Start isEmpty. Operand 5739 states and 6392 transitions. [2023-12-22 12:33:58,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2023-12-22 12:33:58,036 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:33:58,037 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:33:58,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-22 12:33:58,246 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 12:33:58,246 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:33:58,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:33:58,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1647783858, now seen corresponding path program 1 times [2023-12-22 12:33:58,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:33:58,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333136231] [2023-12-22 12:33:58,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:33:58,251 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 12:33:58,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:33:58,252 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 12:33:58,280 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 12:33:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:33:58,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:33:58,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:33:59,549 INFO L134 CoverageAnalysis]: Checked inductivity of 2479 backedges. 1957 proven. 0 refuted. 0 times theorem prover too weak. 522 trivial. 0 not checked. [2023-12-22 12:33:59,549 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:33:59,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:33:59,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333136231] [2023-12-22 12:33:59,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333136231] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:33:59,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:33:59,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 12:33:59,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003436112] [2023-12-22 12:33:59,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:33:59,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 12:33:59,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:33:59,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 12:33:59,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 12:33:59,551 INFO L87 Difference]: Start difference. First operand 5739 states and 6392 transitions. Second operand has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:34:02,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:34:02,108 INFO L93 Difference]: Finished difference Result 11121 states and 12432 transitions. [2023-12-22 12:34:02,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 12:34:02,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 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 900 [2023-12-22 12:34:02,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:34:02,123 INFO L225 Difference]: With dead ends: 11121 [2023-12-22 12:34:02,124 INFO L226 Difference]: Without dead ends: 5917 [2023-12-22 12:34:02,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 899 GetRequests, 897 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 12:34:02,130 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 67 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-22 12:34:02,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 55 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-22 12:34:02,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5917 states. [2023-12-22 12:34:02,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5917 to 5917. [2023-12-22 12:34:02,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5917 states, 5916 states have (on average 1.1110547667342798) internal successors, (6573), 5916 states have internal predecessors, (6573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:34:02,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5917 states to 5917 states and 6573 transitions. [2023-12-22 12:34:02,224 INFO L78 Accepts]: Start accepts. Automaton has 5917 states and 6573 transitions. Word has length 900 [2023-12-22 12:34:02,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:34:02,225 INFO L495 AbstractCegarLoop]: Abstraction has 5917 states and 6573 transitions. [2023-12-22 12:34:02,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:34:02,225 INFO L276 IsEmpty]: Start isEmpty. Operand 5917 states and 6573 transitions. [2023-12-22 12:34:02,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 946 [2023-12-22 12:34:02,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:34:02,234 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:34:02,245 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 12:34:02,442 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 12:34:02,443 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:34:02,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:34:02,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1599534982, now seen corresponding path program 1 times [2023-12-22 12:34:02,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:34:02,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016332648] [2023-12-22 12:34:02,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:34:02,446 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 12:34:02,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:34:02,448 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 12:34:02,458 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 12:34:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:34:02,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-22 12:34:02,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:34:06,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2860 backedges. 423 proven. 2066 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2023-12-22 12:34:06,509 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:34:14,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2860 backedges. 1822 proven. 94 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2023-12-22 12:34:14,405 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:34:14,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016332648] [2023-12-22 12:34:14,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016332648] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:34:14,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:34:14,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2023-12-22 12:34:14,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646172829] [2023-12-22 12:34:14,406 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:34:14,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-22 12:34:14,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:34:14,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-22 12:34:14,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:34:14,408 INFO L87 Difference]: Start difference. First operand 5917 states and 6573 transitions. Second operand has 12 states, 12 states have (on average 95.41666666666667) internal successors, (1145), 11 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:34:22,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:34:22,689 INFO L93 Difference]: Finished difference Result 12266 states and 13628 transitions. [2023-12-22 12:34:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-22 12:34:22,693 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 95.41666666666667) internal successors, (1145), 11 states have internal predecessors, (1145), 0 states have call successors, (0), 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 945 [2023-12-22 12:34:22,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:34:22,704 INFO L225 Difference]: With dead ends: 12266 [2023-12-22 12:34:22,705 INFO L226 Difference]: Without dead ends: 6884 [2023-12-22 12:34:22,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1894 GetRequests, 1878 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2023-12-22 12:34:22,711 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 733 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 5224 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 5413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 5224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-12-22 12:34:22,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 100 Invalid, 5413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 5224 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2023-12-22 12:34:22,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2023-12-22 12:34:22,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 6422. [2023-12-22 12:34:22,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6422 states, 6421 states have (on average 1.0906400872138295) internal successors, (7003), 6421 states have internal predecessors, (7003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:34:22,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6422 states to 6422 states and 7003 transitions. [2023-12-22 12:34:22,790 INFO L78 Accepts]: Start accepts. Automaton has 6422 states and 7003 transitions. Word has length 945 [2023-12-22 12:34:22,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:34:22,791 INFO L495 AbstractCegarLoop]: Abstraction has 6422 states and 7003 transitions. [2023-12-22 12:34:22,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 95.41666666666667) internal successors, (1145), 11 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:34:22,791 INFO L276 IsEmpty]: Start isEmpty. Operand 6422 states and 7003 transitions. [2023-12-22 12:34:22,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1059 [2023-12-22 12:34:22,802 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:34:22,802 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 12:34:22,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-22 12:34:23,016 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 12:34:23,016 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:34:23,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:34:23,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1525234888, now seen corresponding path program 1 times [2023-12-22 12:34:23,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:34:23,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904531481] [2023-12-22 12:34:23,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:34:23,020 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 12:34:23,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:34:23,021 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 12:34:23,022 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 12:34:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:34:23,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 1156 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:34:23,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:34:26,413 INFO L134 CoverageAnalysis]: Checked inductivity of 3366 backedges. 192 proven. 2957 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-12-22 12:34:26,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:34:35,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3366 backedges. 905 proven. 0 refuted. 0 times theorem prover too weak. 2461 trivial. 0 not checked. [2023-12-22 12:34:35,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:34:35,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904531481] [2023-12-22 12:34:35,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904531481] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:34:35,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:34:35,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-22 12:34:35,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392379215] [2023-12-22 12:34:35,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:34:35,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 12:34:35,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:34:35,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 12:34:35,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:34:35,592 INFO L87 Difference]: Start difference. First operand 6422 states and 7003 transitions. Second operand has 5 states, 5 states have (on average 59.8) internal successors, (299), 4 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:34:44,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:34:54,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:34:58,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:35:04,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:35:05,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:35:05,326 INFO L93 Difference]: Finished difference Result 12069 states and 13227 transitions. [2023-12-22 12:35:05,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 12:35:05,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 4 states have internal predecessors, (299), 0 states have call successors, (0), 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 1058 [2023-12-22 12:35:05,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:35:05,337 INFO L225 Difference]: With dead ends: 12069 [2023-12-22 12:35:05,337 INFO L226 Difference]: Without dead ends: 6600 [2023-12-22 12:35:05,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2114 GetRequests, 2104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:35:05,343 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 129 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.7s IncrementalHoareTripleChecker+Time [2023-12-22 12:35:05,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 17 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 29.7s Time] [2023-12-22 12:35:05,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6600 states. [2023-12-22 12:35:05,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6600 to 6422. [2023-12-22 12:35:05,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6422 states, 6421 states have (on average 1.088926958417692) internal successors, (6992), 6421 states have internal predecessors, (6992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:35:05,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6422 states to 6422 states and 6992 transitions. [2023-12-22 12:35:05,421 INFO L78 Accepts]: Start accepts. Automaton has 6422 states and 6992 transitions. Word has length 1058 [2023-12-22 12:35:05,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:35:05,422 INFO L495 AbstractCegarLoop]: Abstraction has 6422 states and 6992 transitions. [2023-12-22 12:35:05,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 4 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:35:05,422 INFO L276 IsEmpty]: Start isEmpty. Operand 6422 states and 6992 transitions. [2023-12-22 12:35:05,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1071 [2023-12-22 12:35:05,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:35:05,433 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 12:35:05,444 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 12:35:05,642 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 12:35:05,642 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:35:05,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:35:05,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1174599462, now seen corresponding path program 1 times [2023-12-22 12:35:05,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:35:05,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922002262] [2023-12-22 12:35:05,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:35:05,646 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 12:35:05,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:35:05,646 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 12:35:05,647 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 12:35:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:35:05,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 1168 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:35:05,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:35:10,742 INFO L134 CoverageAnalysis]: Checked inductivity of 3450 backedges. 192 proven. 3041 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-12-22 12:35:10,742 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:35:17,844 INFO L134 CoverageAnalysis]: Checked inductivity of 3450 backedges. 989 proven. 0 refuted. 0 times theorem prover too weak. 2461 trivial. 0 not checked. [2023-12-22 12:35:17,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:35:17,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1922002262] [2023-12-22 12:35:17,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1922002262] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:35:17,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:35:17,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-22 12:35:17,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725246032] [2023-12-22 12:35:17,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:35:17,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 12:35:17,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:35:17,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 12:35:17,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:35:17,846 INFO L87 Difference]: Start difference. First operand 6422 states and 6992 transitions. Second operand has 5 states, 5 states have (on average 62.2) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:35:33,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:35:33,267 INFO L93 Difference]: Finished difference Result 11891 states and 13021 transitions. [2023-12-22 12:35:33,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 12:35:33,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 62.2) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 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 1070 [2023-12-22 12:35:33,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:35:33,276 INFO L225 Difference]: With dead ends: 11891 [2023-12-22 12:35:33,276 INFO L226 Difference]: Without dead ends: 6422 [2023-12-22 12:35:33,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2138 GetRequests, 2128 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:35:33,283 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 117 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2023-12-22 12:35:33,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 17 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 15.3s Time] [2023-12-22 12:35:33,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6422 states. [2023-12-22 12:35:33,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6422 to 4108. [2023-12-22 12:35:33,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4108 states, 4107 states have (on average 1.055028000973947) internal successors, (4333), 4107 states have internal predecessors, (4333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:35:33,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4108 states to 4108 states and 4333 transitions. [2023-12-22 12:35:33,342 INFO L78 Accepts]: Start accepts. Automaton has 4108 states and 4333 transitions. Word has length 1070 [2023-12-22 12:35:33,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:35:33,343 INFO L495 AbstractCegarLoop]: Abstraction has 4108 states and 4333 transitions. [2023-12-22 12:35:33,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.2) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:35:33,343 INFO L276 IsEmpty]: Start isEmpty. Operand 4108 states and 4333 transitions. [2023-12-22 12:35:33,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1089 [2023-12-22 12:35:33,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:35:33,355 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:35:33,366 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 12:35:33,563 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 12:35:33,564 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:35:33,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:35:33,565 INFO L85 PathProgramCache]: Analyzing trace with hash 719204430, now seen corresponding path program 1 times [2023-12-22 12:35:33,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:35:33,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462424617] [2023-12-22 12:35:33,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:35:33,567 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 12:35:33,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:35:33,568 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 12:35:33,569 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 (21)] Waiting until timeout for monitored process [2023-12-22 12:35:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:35:33,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-22 12:35:33,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:35:39,214 INFO L134 CoverageAnalysis]: Checked inductivity of 3866 backedges. 568 proven. 2927 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2023-12-22 12:35:39,214 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:35:48,564 INFO L134 CoverageAnalysis]: Checked inductivity of 3866 backedges. 2582 proven. 340 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2023-12-22 12:35:48,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:35:48,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462424617] [2023-12-22 12:35:48,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462424617] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:35:48,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:35:48,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2023-12-22 12:35:48,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552228873] [2023-12-22 12:35:48,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:35:48,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-22 12:35:48,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:35:48,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-22 12:35:48,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-12-22 12:35:48,568 INFO L87 Difference]: Start difference. First operand 4108 states and 4333 transitions. Second operand has 14 states, 14 states have (on average 102.0) internal successors, (1428), 13 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:35:58,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:35:58,506 INFO L93 Difference]: Finished difference Result 7800 states and 8273 transitions. [2023-12-22 12:35:58,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 12:35:58,507 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 102.0) internal successors, (1428), 13 states have internal predecessors, (1428), 0 states have call successors, (0), 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 1088 [2023-12-22 12:35:58,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:35:58,512 INFO L225 Difference]: With dead ends: 7800 [2023-12-22 12:35:58,512 INFO L226 Difference]: Without dead ends: 4732 [2023-12-22 12:35:58,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2181 GetRequests, 2162 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2023-12-22 12:35:58,515 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 719 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 7912 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 8043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 7912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-12-22 12:35:58,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 142 Invalid, 8043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 7912 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2023-12-22 12:35:58,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4732 states. [2023-12-22 12:35:58,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4732 to 4286. [2023-12-22 12:35:58,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4286 states, 4285 states have (on average 1.052975495915986) internal successors, (4512), 4285 states have internal predecessors, (4512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:35:58,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4286 states to 4286 states and 4512 transitions. [2023-12-22 12:35:58,562 INFO L78 Accepts]: Start accepts. Automaton has 4286 states and 4512 transitions. Word has length 1088 [2023-12-22 12:35:58,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:35:58,562 INFO L495 AbstractCegarLoop]: Abstraction has 4286 states and 4512 transitions. [2023-12-22 12:35:58,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 102.0) internal successors, (1428), 13 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:35:58,563 INFO L276 IsEmpty]: Start isEmpty. Operand 4286 states and 4512 transitions. [2023-12-22 12:35:58,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1100 [2023-12-22 12:35:58,574 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:35:58,574 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 12:35:58,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-22 12:35:58,782 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 12:35:58,783 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:35:58,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:35:58,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1844405133, now seen corresponding path program 1 times [2023-12-22 12:35:58,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:35:58,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010754171] [2023-12-22 12:35:58,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:35:58,786 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 12:35:58,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:35:58,787 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 12:35:58,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-22 12:35:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:35:59,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 1199 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:35:59,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:35:59,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3644 backedges. 1183 proven. 0 refuted. 0 times theorem prover too weak. 2461 trivial. 0 not checked. [2023-12-22 12:35:59,293 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:35:59,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:35:59,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2010754171] [2023-12-22 12:35:59,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2010754171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:35:59,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:35:59,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:35:59,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67771016] [2023-12-22 12:35:59,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:35:59,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:35:59,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:35:59,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:35:59,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:35:59,295 INFO L87 Difference]: Start difference. First operand 4286 states and 4512 transitions. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:36:01,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:36:01,716 INFO L93 Difference]: Finished difference Result 9105 states and 9684 transitions. [2023-12-22 12:36:01,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:36:01,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 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 1099 [2023-12-22 12:36:01,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:36:01,721 INFO L225 Difference]: With dead ends: 9105 [2023-12-22 12:36:01,721 INFO L226 Difference]: Without dead ends: 4998 [2023-12-22 12:36:01,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1098 GetRequests, 1097 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 12:36:01,724 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 69 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-22 12:36:01,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 232 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-22 12:36:01,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4998 states. [2023-12-22 12:36:01,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4998 to 4464. [2023-12-22 12:36:01,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4464 states, 4463 states have (on average 1.0513107775039212) internal successors, (4692), 4463 states have internal predecessors, (4692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:36:01,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4464 states to 4464 states and 4692 transitions. [2023-12-22 12:36:01,756 INFO L78 Accepts]: Start accepts. Automaton has 4464 states and 4692 transitions. Word has length 1099 [2023-12-22 12:36:01,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:36:01,756 INFO L495 AbstractCegarLoop]: Abstraction has 4464 states and 4692 transitions. [2023-12-22 12:36:01,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:36:01,756 INFO L276 IsEmpty]: Start isEmpty. Operand 4464 states and 4692 transitions. [2023-12-22 12:36:01,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1225 [2023-12-22 12:36:01,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:36:01,767 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:36:01,774 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 12:36:01,967 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 12:36:01,967 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:36:01,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:36:01,968 INFO L85 PathProgramCache]: Analyzing trace with hash -460978161, now seen corresponding path program 1 times [2023-12-22 12:36:01,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:36:01,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668996498] [2023-12-22 12:36:01,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:36:01,971 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 12:36:01,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:36:01,972 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 12:36:01,973 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 12:36:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:36:02,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:36:02,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:36:02,416 INFO L134 CoverageAnalysis]: Checked inductivity of 4876 backedges. 1370 proven. 0 refuted. 0 times theorem prover too weak. 3506 trivial. 0 not checked. [2023-12-22 12:36:02,417 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:36:02,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:36:02,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668996498] [2023-12-22 12:36:02,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668996498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:36:02,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:36:02,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:36:02,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941765689] [2023-12-22 12:36:02,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:36:02,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:36:02,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:36:02,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:36:02,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:36:02,419 INFO L87 Difference]: Start difference. First operand 4464 states and 4692 transitions. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:36:04,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:36:04,347 INFO L93 Difference]: Finished difference Result 8600 states and 9178 transitions. [2023-12-22 12:36:04,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:36:04,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 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 1224 [2023-12-22 12:36:04,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:36:04,352 INFO L225 Difference]: With dead ends: 8600 [2023-12-22 12:36:04,352 INFO L226 Difference]: Without dead ends: 5176 [2023-12-22 12:36:04,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1223 GetRequests, 1222 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 12:36:04,355 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 80 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-22 12:36:04,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 233 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-22 12:36:04,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5176 states. [2023-12-22 12:36:04,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5176 to 4998. [2023-12-22 12:36:04,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4998 states, 4997 states have (on average 1.051430858515109) internal successors, (5254), 4997 states have internal predecessors, (5254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:36:04,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4998 states to 4998 states and 5254 transitions. [2023-12-22 12:36:04,403 INFO L78 Accepts]: Start accepts. Automaton has 4998 states and 5254 transitions. Word has length 1224 [2023-12-22 12:36:04,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:36:04,404 INFO L495 AbstractCegarLoop]: Abstraction has 4998 states and 5254 transitions. [2023-12-22 12:36:04,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:36:04,404 INFO L276 IsEmpty]: Start isEmpty. Operand 4998 states and 5254 transitions. [2023-12-22 12:36:04,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1403 [2023-12-22 12:36:04,420 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:36:04,421 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:36:04,428 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 12:36:04,623 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 12:36:04,623 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:36:04,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:36:04,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1729196793, now seen corresponding path program 1 times [2023-12-22 12:36:04,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:36:04,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527892707] [2023-12-22 12:36:04,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:36:04,627 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 12:36:04,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:36:04,628 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 12:36:04,629 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 12:36:04,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:36:04,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:36:04,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:36:10,420 INFO L134 CoverageAnalysis]: Checked inductivity of 6098 backedges. 319 proven. 5195 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2023-12-22 12:36:10,420 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:36:13,935 INFO L134 CoverageAnalysis]: Checked inductivity of 6098 backedges. 2445 proven. 48 refuted. 0 times theorem prover too weak. 3605 trivial. 0 not checked. [2023-12-22 12:36:13,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:36:13,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527892707] [2023-12-22 12:36:13,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527892707] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:36:13,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:36:13,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 11 [2023-12-22 12:36:13,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625101735] [2023-12-22 12:36:13,936 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:36:13,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-22 12:36:13,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:36:13,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-22 12:36:13,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:36:13,938 INFO L87 Difference]: Start difference. First operand 4998 states and 5254 transitions. Second operand has 12 states, 12 states have (on average 107.25) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:36:26,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:36:26,568 INFO L93 Difference]: Finished difference Result 10862 states and 11497 transitions. [2023-12-22 12:36:26,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 12:36:26,568 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 107.25) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 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 1402 [2023-12-22 12:36:26,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:36:26,573 INFO L225 Difference]: With dead ends: 10862 [2023-12-22 12:36:26,573 INFO L226 Difference]: Without dead ends: 6856 [2023-12-22 12:36:26,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2803 GetRequests, 2792 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-12-22 12:36:26,575 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 169 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 7007 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 7068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 7007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-12-22 12:36:26,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 155 Invalid, 7068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 7007 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2023-12-22 12:36:26,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6856 states. [2023-12-22 12:36:26,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6856 to 4998. [2023-12-22 12:36:26,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4998 states, 4997 states have (on average 1.0498298979387632) internal successors, (5246), 4997 states have internal predecessors, (5246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:36:26,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4998 states to 4998 states and 5246 transitions. [2023-12-22 12:36:26,628 INFO L78 Accepts]: Start accepts. Automaton has 4998 states and 5246 transitions. Word has length 1402 [2023-12-22 12:36:26,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:36:26,629 INFO L495 AbstractCegarLoop]: Abstraction has 4998 states and 5246 transitions. [2023-12-22 12:36:26,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 107.25) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:36:26,629 INFO L276 IsEmpty]: Start isEmpty. Operand 4998 states and 5246 transitions. [2023-12-22 12:36:26,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1411 [2023-12-22 12:36:26,645 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:36:26,645 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:36:26,653 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 12:36:26,848 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 12:36:26,849 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:36:26,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:36:26,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1392809317, now seen corresponding path program 1 times [2023-12-22 12:36:26,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:36:26,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1304138081] [2023-12-22 12:36:26,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:36:26,853 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 12:36:26,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:36:26,854 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 12:36:26,855 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 12:36:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:36:27,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 1537 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:36:27,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:36:33,181 INFO L134 CoverageAnalysis]: Checked inductivity of 6159 backedges. 275 proven. 5292 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2023-12-22 12:36:33,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:36:53,790 INFO L134 CoverageAnalysis]: Checked inductivity of 6159 backedges. 2546 proven. 0 refuted. 0 times theorem prover too weak. 3613 trivial. 0 not checked. [2023-12-22 12:36:53,790 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:36:53,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1304138081] [2023-12-22 12:36:53,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1304138081] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:36:53,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:36:53,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-22 12:36:53,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683305097] [2023-12-22 12:36:53,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:36:53,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 12:36:53,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:36:53,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 12:36:53,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:36:53,793 INFO L87 Difference]: Start difference. First operand 4998 states and 5246 transitions. Second operand has 5 states, 5 states have (on average 83.4) internal successors, (417), 4 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:37:13,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:37:13,862 INFO L93 Difference]: Finished difference Result 9340 states and 9850 transitions. [2023-12-22 12:37:13,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 12:37:13,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 83.4) internal successors, (417), 4 states have internal predecessors, (417), 0 states have call successors, (0), 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 1410 [2023-12-22 12:37:13,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:37:13,866 INFO L225 Difference]: With dead ends: 9340 [2023-12-22 12:37:13,867 INFO L226 Difference]: Without dead ends: 5354 [2023-12-22 12:37:13,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2818 GetRequests, 2808 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:37:13,870 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 33 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2023-12-22 12:37:13,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 17 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 20.0s Time] [2023-12-22 12:37:13,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5354 states. [2023-12-22 12:37:13,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5354 to 4998. [2023-12-22 12:37:13,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4998 states, 4997 states have (on average 1.0482289373624174) internal successors, (5238), 4997 states have internal predecessors, (5238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:37:13,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4998 states to 4998 states and 5238 transitions. [2023-12-22 12:37:13,934 INFO L78 Accepts]: Start accepts. Automaton has 4998 states and 5238 transitions. Word has length 1410 [2023-12-22 12:37:13,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:37:13,935 INFO L495 AbstractCegarLoop]: Abstraction has 4998 states and 5238 transitions. [2023-12-22 12:37:13,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.4) internal successors, (417), 4 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:37:13,935 INFO L276 IsEmpty]: Start isEmpty. Operand 4998 states and 5238 transitions. [2023-12-22 12:37:13,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1478 [2023-12-22 12:37:13,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:37:13,953 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:37:13,963 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 12:37:14,163 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 12:37:14,163 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:37:14,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:37:14,164 INFO L85 PathProgramCache]: Analyzing trace with hash 863751001, now seen corresponding path program 1 times [2023-12-22 12:37:14,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:37:14,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890720017] [2023-12-22 12:37:14,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:37:14,167 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 12:37:14,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:37:14,169 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 12:37:14,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-22 12:37:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:37:14,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 1604 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:37:14,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:37:19,835 INFO L134 CoverageAnalysis]: Checked inductivity of 6401 backedges. 308 proven. 5434 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2023-12-22 12:37:19,835 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:37:56,722 INFO L134 CoverageAnalysis]: Checked inductivity of 6401 backedges. 2671 proven. 50 refuted. 0 times theorem prover too weak. 3680 trivial. 0 not checked. [2023-12-22 12:37:56,723 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:37:56,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890720017] [2023-12-22 12:37:56,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890720017] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:37:56,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:37:56,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 11 [2023-12-22 12:37:56,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679030609] [2023-12-22 12:37:56,724 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:37:56,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-22 12:37:56,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:37:56,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-22 12:37:56,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:37:56,727 INFO L87 Difference]: Start difference. First operand 4998 states and 5238 transitions. Second operand has 12 states, 12 states have (on average 107.33333333333333) internal successors, (1288), 11 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:38:17,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:38:24,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:38:28,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:38:28,246 INFO L93 Difference]: Finished difference Result 11042 states and 11648 transitions. [2023-12-22 12:38:28,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 12:38:28,247 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 107.33333333333333) internal successors, (1288), 11 states have internal predecessors, (1288), 0 states have call successors, (0), 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 1477 [2023-12-22 12:38:28,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:38:28,253 INFO L225 Difference]: With dead ends: 11042 [2023-12-22 12:38:28,253 INFO L226 Difference]: Without dead ends: 7034 [2023-12-22 12:38:28,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2953 GetRequests, 2942 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-12-22 12:38:28,256 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 177 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 7495 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 7543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 7495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time [2023-12-22 12:38:28,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 164 Invalid, 7543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 7495 Invalid, 0 Unknown, 0 Unchecked, 30.8s Time] [2023-12-22 12:38:28,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7034 states. [2023-12-22 12:38:28,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7034 to 4998. [2023-12-22 12:38:28,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4998 states, 4997 states have (on average 1.0466279767860716) internal successors, (5230), 4997 states have internal predecessors, (5230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:38:28,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4998 states to 4998 states and 5230 transitions. [2023-12-22 12:38:28,305 INFO L78 Accepts]: Start accepts. Automaton has 4998 states and 5230 transitions. Word has length 1477 [2023-12-22 12:38:28,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:38:28,306 INFO L495 AbstractCegarLoop]: Abstraction has 4998 states and 5230 transitions. [2023-12-22 12:38:28,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 107.33333333333333) internal successors, (1288), 11 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:38:28,306 INFO L276 IsEmpty]: Start isEmpty. Operand 4998 states and 5230 transitions. [2023-12-22 12:38:28,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1501 [2023-12-22 12:38:28,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:38:28,333 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:38:28,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-22 12:38:28,533 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 12:38:28,534 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:38:28,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:38:28,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1423424665, now seen corresponding path program 1 times [2023-12-22 12:38:28,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:38:28,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248215347] [2023-12-22 12:38:28,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:38:28,538 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 12:38:28,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:38:28,539 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 12:38:28,539 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 12:38:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:38:28,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 1636 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 12:38:28,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:38:31,285 INFO L134 CoverageAnalysis]: Checked inductivity of 7164 backedges. 635 proven. 5935 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2023-12-22 12:38:31,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:38:32,596 INFO L134 CoverageAnalysis]: Checked inductivity of 7164 backedges. 3373 proven. 176 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2023-12-22 12:38:32,596 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:38:32,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248215347] [2023-12-22 12:38:32,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248215347] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:38:32,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:38:32,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 11 [2023-12-22 12:38:32,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641764707] [2023-12-22 12:38:32,597 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:38:32,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-22 12:38:32,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:38:32,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-22 12:38:32,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-22 12:38:32,600 INFO L87 Difference]: Start difference. First operand 4998 states and 5230 transitions. Second operand has 11 states, 11 states have (on average 130.8181818181818) internal successors, (1439), 11 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:38:46,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:38:46,684 INFO L93 Difference]: Finished difference Result 11886 states and 12580 transitions. [2023-12-22 12:38:46,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-22 12:38:46,685 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 130.8181818181818) internal successors, (1439), 11 states have internal predecessors, (1439), 0 states have call successors, (0), 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 1500 [2023-12-22 12:38:46,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:38:46,691 INFO L225 Difference]: With dead ends: 11886 [2023-12-22 12:38:46,692 INFO L226 Difference]: Without dead ends: 7928 [2023-12-22 12:38:46,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3000 GetRequests, 2990 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:38:46,694 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 456 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 6922 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 7017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 6922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-12-22 12:38:46,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 146 Invalid, 7017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 6922 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2023-12-22 12:38:46,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7928 states. [2023-12-22 12:38:46,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7928 to 7312. [2023-12-22 12:38:46,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7312 states, 7311 states have (on average 1.0454110244836547) internal successors, (7643), 7311 states have internal predecessors, (7643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:38:46,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7312 states to 7312 states and 7643 transitions. [2023-12-22 12:38:46,793 INFO L78 Accepts]: Start accepts. Automaton has 7312 states and 7643 transitions. Word has length 1500 [2023-12-22 12:38:46,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:38:46,793 INFO L495 AbstractCegarLoop]: Abstraction has 7312 states and 7643 transitions. [2023-12-22 12:38:46,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 130.8181818181818) internal successors, (1439), 11 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:38:46,794 INFO L276 IsEmpty]: Start isEmpty. Operand 7312 states and 7643 transitions. [2023-12-22 12:38:46,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1583 [2023-12-22 12:38:46,815 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:38:46,816 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:38:46,828 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 (27)] Forceful destruction successful, exit code 0 [2023-12-22 12:38:47,027 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 12:38:47,028 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:38:47,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:38:47,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1850215295, now seen corresponding path program 1 times [2023-12-22 12:38:47,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:38:47,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442178232] [2023-12-22 12:38:47,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:38:47,032 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 12:38:47,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:38:47,033 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 12:38:47,034 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 12:38:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:38:47,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 1727 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:38:47,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:38:54,215 INFO L134 CoverageAnalysis]: Checked inductivity of 8164 backedges. 1255 proven. 6284 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2023-12-22 12:38:54,215 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:38:59,398 INFO L134 CoverageAnalysis]: Checked inductivity of 8164 backedges. 4274 proven. 244 refuted. 0 times theorem prover too weak. 3646 trivial. 0 not checked. [2023-12-22 12:38:59,398 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:38:59,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442178232] [2023-12-22 12:38:59,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442178232] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:38:59,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:38:59,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 13 [2023-12-22 12:38:59,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074668134] [2023-12-22 12:38:59,399 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:38:59,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-22 12:38:59,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:38:59,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-22 12:38:59,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-12-22 12:38:59,402 INFO L87 Difference]: Start difference. First operand 7312 states and 7643 transitions. Second operand has 14 states, 14 states have (on average 108.92857142857143) internal successors, (1525), 13 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:39:13,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:39:13,900 INFO L93 Difference]: Finished difference Result 12486 states and 13120 transitions. [2023-12-22 12:39:13,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 12:39:13,901 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 108.92857142857143) internal successors, (1525), 13 states have internal predecessors, (1525), 0 states have call successors, (0), 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 1582 [2023-12-22 12:39:13,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:39:13,906 INFO L225 Difference]: With dead ends: 12486 [2023-12-22 12:39:13,906 INFO L226 Difference]: Without dead ends: 7394 [2023-12-22 12:39:13,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3164 GetRequests, 3150 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-12-22 12:39:13,908 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 352 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 12449 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 12490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 12449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2023-12-22 12:39:13,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 276 Invalid, 12490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 12449 Invalid, 0 Unknown, 0 Unchecked, 14.2s Time] [2023-12-22 12:39:13,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7394 states. [2023-12-22 12:39:13,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7394 to 5532. [2023-12-22 12:39:13,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5532 states, 5531 states have (on average 1.0451997830410413) internal successors, (5781), 5531 states have internal predecessors, (5781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:39:13,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5532 states to 5532 states and 5781 transitions. [2023-12-22 12:39:13,967 INFO L78 Accepts]: Start accepts. Automaton has 5532 states and 5781 transitions. Word has length 1582 [2023-12-22 12:39:13,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:39:13,968 INFO L495 AbstractCegarLoop]: Abstraction has 5532 states and 5781 transitions. [2023-12-22 12:39:13,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 108.92857142857143) internal successors, (1525), 13 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:39:13,969 INFO L276 IsEmpty]: Start isEmpty. Operand 5532 states and 5781 transitions. [2023-12-22 12:39:13,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1584 [2023-12-22 12:39:13,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:39:13,989 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:39:14,000 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 12:39:14,199 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 12:39:14,199 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:39:14,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:39:14,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1147073782, now seen corresponding path program 1 times [2023-12-22 12:39:14,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:39:14,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792994815] [2023-12-22 12:39:14,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:39:14,204 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 12:39:14,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:39:14,205 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 12:39:14,206 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 12:39:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:39:14,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 1719 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:39:14,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:39:22,749 INFO L134 CoverageAnalysis]: Checked inductivity of 7568 backedges. 416 proven. 6558 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2023-12-22 12:39:22,749 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:39:28,428 INFO L134 CoverageAnalysis]: Checked inductivity of 7568 backedges. 3633 proven. 320 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2023-12-22 12:39:28,428 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:39:28,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792994815] [2023-12-22 12:39:28,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [792994815] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:39:28,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:39:28,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 13 [2023-12-22 12:39:28,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269148349] [2023-12-22 12:39:28,429 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:39:28,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-22 12:39:28,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:39:28,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-22 12:39:28,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-12-22 12:39:28,432 INFO L87 Difference]: Start difference. First operand 5532 states and 5781 transitions. Second operand has 14 states, 14 states have (on average 116.07142857142857) internal successors, (1625), 13 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:39:43,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:39:43,641 INFO L93 Difference]: Finished difference Result 11210 states and 11717 transitions. [2023-12-22 12:39:43,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-22 12:39:43,642 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 116.07142857142857) internal successors, (1625), 13 states have internal predecessors, (1625), 0 states have call successors, (0), 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 1583 [2023-12-22 12:39:43,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:39:43,647 INFO L225 Difference]: With dead ends: 11210 [2023-12-22 12:39:43,647 INFO L226 Difference]: Without dead ends: 6678 [2023-12-22 12:39:43,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3164 GetRequests, 3152 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-12-22 12:39:43,650 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 203 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 12150 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 12180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 12150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2023-12-22 12:39:43,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 246 Invalid, 12180 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 12150 Invalid, 0 Unknown, 0 Unchecked, 14.9s Time] [2023-12-22 12:39:43,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6678 states. [2023-12-22 12:39:43,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6678 to 5532. [2023-12-22 12:39:43,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5532 states, 5531 states have (on average 1.0433917917193998) internal successors, (5771), 5531 states have internal predecessors, (5771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:39:43,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5532 states to 5532 states and 5771 transitions. [2023-12-22 12:39:43,710 INFO L78 Accepts]: Start accepts. Automaton has 5532 states and 5771 transitions. Word has length 1583 [2023-12-22 12:39:43,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:39:43,711 INFO L495 AbstractCegarLoop]: Abstraction has 5532 states and 5771 transitions. [2023-12-22 12:39:43,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 116.07142857142857) internal successors, (1625), 13 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:39:43,711 INFO L276 IsEmpty]: Start isEmpty. Operand 5532 states and 5771 transitions. [2023-12-22 12:39:43,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1606 [2023-12-22 12:39:43,729 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:39:43,730 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:39:43,737 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 12:39:43,930 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 12:39:43,931 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:39:43,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:39:43,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1927015496, now seen corresponding path program 1 times [2023-12-22 12:39:43,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:39:43,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962754875] [2023-12-22 12:39:43,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:39:43,935 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 12:39:43,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:39:43,936 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 12:39:43,937 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 12:39:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:39:44,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 1750 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 12:39:44,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:39:50,709 INFO L134 CoverageAnalysis]: Checked inductivity of 8303 backedges. 507 proven. 7202 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2023-12-22 12:39:50,709 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:40:27,669 INFO L134 CoverageAnalysis]: Checked inductivity of 8303 backedges. 4246 proven. 442 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2023-12-22 12:40:27,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:40:27,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962754875] [2023-12-22 12:40:27,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962754875] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:40:27,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:40:27,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 15 [2023-12-22 12:40:27,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639913171] [2023-12-22 12:40:27,670 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:40:27,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 12:40:27,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:40:27,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 12:40:27,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-12-22 12:40:27,685 INFO L87 Difference]: Start difference. First operand 5532 states and 5771 transitions. Second operand has 16 states, 16 states have (on average 103.9375) internal successors, (1663), 15 states have internal predecessors, (1663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:40:40,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:41:00,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:41:30,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:41:35,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:41:37,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:41:42,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:41:43,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:41:51,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:41:57,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:41:59,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:42:00,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:42:05,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:42:07,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:42:10,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:42:12,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:42:14,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:42:16,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:42:21,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:42:22,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:42:25,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:42:29,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:42:33,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:42:35,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:42:37,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:42:40,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:42:42,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:42:54,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:42:55,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:43:01,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:43:01,859 INFO L93 Difference]: Finished difference Result 13868 states and 14622 transitions. [2023-12-22 12:43:01,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 12:43:01,868 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 103.9375) internal successors, (1663), 15 states have internal predecessors, (1663), 0 states have call successors, (0), 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 1605 [2023-12-22 12:43:01,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:43:01,875 INFO L225 Difference]: With dead ends: 13868 [2023-12-22 12:43:01,875 INFO L226 Difference]: Without dead ends: 9348 [2023-12-22 12:43:01,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3210 GetRequests, 3194 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2023-12-22 12:43:01,878 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 809 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 12886 mSolverCounterSat, 202 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 138.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 13090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 12886 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 145.4s IncrementalHoareTripleChecker+Time [2023-12-22 12:43:01,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 265 Invalid, 13090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 12886 Invalid, 2 Unknown, 0 Unchecked, 145.4s Time] [2023-12-22 12:43:01,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9348 states. [2023-12-22 12:43:01,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9348 to 7134. [2023-12-22 12:43:01,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7134 states, 7133 states have (on average 1.0407962988924717) internal successors, (7424), 7133 states have internal predecessors, (7424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:43:01,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7134 states to 7134 states and 7424 transitions. [2023-12-22 12:43:01,959 INFO L78 Accepts]: Start accepts. Automaton has 7134 states and 7424 transitions. Word has length 1605 [2023-12-22 12:43:01,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:43:01,960 INFO L495 AbstractCegarLoop]: Abstraction has 7134 states and 7424 transitions. [2023-12-22 12:43:01,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 103.9375) internal successors, (1663), 15 states have internal predecessors, (1663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:43:01,961 INFO L276 IsEmpty]: Start isEmpty. Operand 7134 states and 7424 transitions. [2023-12-22 12:43:01,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1624 [2023-12-22 12:43:01,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:43:01,980 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:43:01,988 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 12:43:02,181 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 12:43:02,182 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:43:02,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:43:02,182 INFO L85 PathProgramCache]: Analyzing trace with hash -311746843, now seen corresponding path program 1 times [2023-12-22 12:43:02,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:43:02,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401530839] [2023-12-22 12:43:02,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:43:02,186 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 12:43:02,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:43:02,187 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 12:43:02,188 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 (31)] Waiting until timeout for monitored process [2023-12-22 12:43:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:43:02,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 1769 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:43:02,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:43:02,773 INFO L134 CoverageAnalysis]: Checked inductivity of 8492 backedges. 1716 proven. 0 refuted. 0 times theorem prover too weak. 6776 trivial. 0 not checked. [2023-12-22 12:43:02,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:43:02,774 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:43:02,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401530839] [2023-12-22 12:43:02,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1401530839] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:43:02,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:43:02,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:43:02,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459601352] [2023-12-22 12:43:02,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:43:02,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:43:02,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:43:02,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:43:02,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:43:02,776 INFO L87 Difference]: Start difference. First operand 7134 states and 7424 transitions. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:43:04,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:43:04,698 INFO L93 Difference]: Finished difference Result 12338 states and 12960 transitions. [2023-12-22 12:43:04,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:43:04,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 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 1623 [2023-12-22 12:43:04,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:43:04,703 INFO L225 Difference]: With dead ends: 12338 [2023-12-22 12:43:04,703 INFO L226 Difference]: Without dead ends: 7312 [2023-12-22 12:43:04,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1622 GetRequests, 1621 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 12:43:04,707 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 91 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-22 12:43:04,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 219 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-22 12:43:04,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7312 states. [2023-12-22 12:43:04,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7312 to 6956. [2023-12-22 12:43:04,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6956 states, 6955 states have (on average 1.0404025880661394) internal successors, (7236), 6955 states have internal predecessors, (7236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:43:04,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6956 states to 6956 states and 7236 transitions. [2023-12-22 12:43:04,770 INFO L78 Accepts]: Start accepts. Automaton has 6956 states and 7236 transitions. Word has length 1623 [2023-12-22 12:43:04,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:43:04,771 INFO L495 AbstractCegarLoop]: Abstraction has 6956 states and 7236 transitions. [2023-12-22 12:43:04,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 12:43:04,771 INFO L276 IsEmpty]: Start isEmpty. Operand 6956 states and 7236 transitions. [2023-12-22 12:43:04,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1674 [2023-12-22 12:43:04,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:43:04,790 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:43:04,800 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 12:43:04,991 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 12:43:04,991 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:43:04,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:43:04,992 INFO L85 PathProgramCache]: Analyzing trace with hash -357507486, now seen corresponding path program 1 times [2023-12-22 12:43:04,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:43:04,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054925463] [2023-12-22 12:43:04,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:43:04,996 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 12:43:04,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:43:04,997 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 12:43:04,998 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 12:43:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:43:05,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 1818 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 12:43:05,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:43:11,184 INFO L134 CoverageAnalysis]: Checked inductivity of 8832 backedges. 190 proven. 8238 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2023-12-22 12:43:11,185 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-22 12:43:32,073 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 12:43:32,080 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 12:43:32,088 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 12:43:32,099 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 12:43:32,281 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 12:43:32,281 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 1674 with TraceHistMax 14,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. [2023-12-22 12:43:32,286 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-22 12:43:32,288 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 12:43:32,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 12:43:32 BoogieIcfgContainer [2023-12-22 12:43:32,292 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 12:43:32,292 INFO L158 Benchmark]: Toolchain (without parser) took 849658.50ms. Allocated memory was 278.9MB in the beginning and 725.6MB in the end (delta: 446.7MB). Free memory was 225.9MB in the beginning and 438.3MB in the end (delta: -212.4MB). Peak memory consumption was 235.3MB. Max. memory is 8.0GB. [2023-12-22 12:43:32,293 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 195.0MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 12:43:32,293 INFO L158 Benchmark]: CACSL2BoogieTranslator took 633.30ms. Allocated memory is still 278.9MB. Free memory was 225.6MB in the beginning and 187.8MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2023-12-22 12:43:32,293 INFO L158 Benchmark]: Boogie Procedure Inliner took 132.85ms. Allocated memory is still 278.9MB. Free memory was 187.8MB in the beginning and 239.1MB in the end (delta: -51.3MB). Peak memory consumption was 6.2MB. Max. memory is 8.0GB. [2023-12-22 12:43:32,293 INFO L158 Benchmark]: Boogie Preprocessor took 108.00ms. Allocated memory is still 278.9MB. Free memory was 239.1MB in the beginning and 232.3MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-22 12:43:32,293 INFO L158 Benchmark]: RCFGBuilder took 3151.80ms. Allocated memory is still 278.9MB. Free memory was 232.3MB in the beginning and 193.7MB in the end (delta: 38.6MB). Peak memory consumption was 90.5MB. Max. memory is 8.0GB. [2023-12-22 12:43:32,294 INFO L158 Benchmark]: TraceAbstraction took 845624.93ms. Allocated memory was 278.9MB in the beginning and 725.6MB in the end (delta: 446.7MB). Free memory was 193.2MB in the beginning and 438.3MB in the end (delta: -245.2MB). Peak memory consumption was 201.6MB. Max. memory is 8.0GB. [2023-12-22 12:43:32,294 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 195.0MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 633.30ms. Allocated memory is still 278.9MB. Free memory was 225.6MB in the beginning and 187.8MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 132.85ms. Allocated memory is still 278.9MB. Free memory was 187.8MB in the beginning and 239.1MB in the end (delta: -51.3MB). Peak memory consumption was 6.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 108.00ms. Allocated memory is still 278.9MB. Free memory was 239.1MB in the beginning and 232.3MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 3151.80ms. Allocated memory is still 278.9MB. Free memory was 232.3MB in the beginning and 193.7MB in the end (delta: 38.6MB). Peak memory consumption was 90.5MB. Max. memory is 8.0GB. * TraceAbstraction took 845624.93ms. Allocated memory was 278.9MB in the beginning and 725.6MB in the end (delta: 446.7MB). Free memory was 193.2MB in the beginning and 438.3MB in the end (delta: -245.2MB). Peak memory consumption was 201.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 179]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 179). Cancelled while NwaCegarLoop was analyzing trace of length 1674 with TraceHistMax 14,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 183 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 845.6s, OverallIterations: 31, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 482.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 8747 SdHoareTripleChecker+Valid, 467.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8747 mSDsluCounter, 4197 SdHoareTripleChecker+Invalid, 427.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1610 mSDsCounter, 2565 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 98649 IncrementalHoareTripleChecker+Invalid, 101216 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2565 mSolverCounterUnsat, 2587 mSDtfsCounter, 98649 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44723 GetRequests, 44481 SyntacticMatches, 0 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 18.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7312occurred in iteration=26, InterpolantAutomatonStates: 242, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 30 MinimizatonAttempts, 16776 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 5.0s SatisfiabilityAnalysisTime, 320.6s InterpolantComputationTime, 26063 NumberOfCodeBlocks, 26063 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 44678 ConstructedInterpolants, 0 QuantifiedInterpolants, 292685 SizeOfPredicates, 28 NumberOfNonLiveVariables, 28756 ConjunctsInSsa, 211 ConjunctsInUnsatCore, 48 InterpolantComputations, 18 PerfectInterpolantSequences, 107813/166604 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown