/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/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 18:00:10,513 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 18:00:10,583 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 18:00:10,586 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 18:00:10,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 18:00:10,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 18:00:10,609 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 18:00:10,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 18:00:10,610 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 18:00:10,613 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 18:00:10,613 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 18:00:10,613 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 18:00:10,614 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 18:00:10,615 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 18:00:10,615 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 18:00:10,615 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 18:00:10,615 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 18:00:10,615 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 18:00:10,616 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 18:00:10,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 18:00:10,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 18:00:10,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 18:00:10,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 18:00:10,617 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 18:00:10,618 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 18:00:10,618 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 18:00:10,618 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 18:00:10,618 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 18:00:10,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 18:00:10,618 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 18:00:10,619 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 18:00:10,619 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 18:00:10,619 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 18:00:10,619 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 18:00:10,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:00:10,620 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 18:00:10,620 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 18:00:10,620 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 18:00:10,620 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 18:00:10,620 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 18:00:10,620 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 18:00:10,620 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 18:00:10,621 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 18:00:10,621 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 18:00:10,621 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 18:00:10,621 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 18:00:10,621 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 18:00:10,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 18:00:10,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 18:00:10,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 18:00:10,838 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 18:00:10,838 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 18:00:10,839 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c [2023-12-16 18:00:11,910 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 18:00:12,065 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 18:00:12,065 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c [2023-12-16 18:00:12,072 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58968fa09/b08ed993f96d4f0b856494b6bf49c2d1/FLAG8964c6897 [2023-12-16 18:00:12,081 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58968fa09/b08ed993f96d4f0b856494b6bf49c2d1 [2023-12-16 18:00:12,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 18:00:12,084 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 18:00:12,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 18:00:12,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 18:00:12,090 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 18:00:12,090 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:00:12" (1/1) ... [2023-12-16 18:00:12,091 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1609bee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:00:12, skipping insertion in model container [2023-12-16 18:00:12,091 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:00:12" (1/1) ... [2023-12-16 18:00:12,129 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 18:00:12,303 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c[9376,9389] [2023-12-16 18:00:12,306 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:00:12,325 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 18:00:12,383 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c[9376,9389] [2023-12-16 18:00:12,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:00:12,394 INFO L206 MainTranslator]: Completed translation [2023-12-16 18:00:12,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:00:12 WrapperNode [2023-12-16 18:00:12,394 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 18:00:12,395 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 18:00:12,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 18:00:12,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 18:00:12,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:00:12" (1/1) ... [2023-12-16 18:00:12,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:00:12" (1/1) ... [2023-12-16 18:00:12,458 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 291 [2023-12-16 18:00:12,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 18:00:12,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 18:00:12,459 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 18:00:12,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 18:00:12,473 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:00:12" (1/1) ... [2023-12-16 18:00:12,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:00:12" (1/1) ... [2023-12-16 18:00:12,481 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:00:12" (1/1) ... [2023-12-16 18:00:12,499 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]. [2023-12-16 18:00:12,499 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:00:12" (1/1) ... [2023-12-16 18:00:12,499 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:00:12" (1/1) ... [2023-12-16 18:00:12,503 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:00:12" (1/1) ... [2023-12-16 18:00:12,506 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:00:12" (1/1) ... [2023-12-16 18:00:12,507 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:00:12" (1/1) ... [2023-12-16 18:00:12,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:00:12" (1/1) ... [2023-12-16 18:00:12,521 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 18:00:12,523 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 18:00:12,523 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 18:00:12,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 18:00:12,523 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:00:12" (1/1) ... [2023-12-16 18:00:12,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:00:12,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 18:00:12,545 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) [2023-12-16 18:00:12,573 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 [2023-12-16 18:00:12,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 18:00:12,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 18:00:12,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 18:00:12,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 18:00:12,651 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 18:00:12,653 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 18:00:13,026 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 18:00:13,059 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 18:00:13,059 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 18:00:13,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:00:13 BoogieIcfgContainer [2023-12-16 18:00:13,060 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 18:00:13,061 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 18:00:13,061 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 18:00:13,064 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 18:00:13,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:00:12" (1/3) ... [2023-12-16 18:00:13,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53739e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:00:13, skipping insertion in model container [2023-12-16 18:00:13,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:00:12" (2/3) ... [2023-12-16 18:00:13,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53739e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:00:13, skipping insertion in model container [2023-12-16 18:00:13,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:00:13" (3/3) ... [2023-12-16 18:00:13,066 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c [2023-12-16 18:00:13,077 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 18:00:13,077 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 18:00:13,111 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 18:00:13,115 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;@bfb4e1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 18:00:13,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 18:00:13,140 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 78 states have (on average 1.7692307692307692) internal successors, (138), 79 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:13,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-16 18:00:13,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:13,147 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] [2023-12-16 18:00:13,147 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:13,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:13,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1507217479, now seen corresponding path program 1 times [2023-12-16 18:00:13,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:13,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1165030362] [2023-12-16 18:00:13,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:13,162 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 [2023-12-16 18:00:13,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:13,172 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) [2023-12-16 18:00:13,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 18:00:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:13,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 18:00:13,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:13,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:13,266 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:00:13,266 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:13,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1165030362] [2023-12-16 18:00:13,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1165030362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:00:13,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:00:13,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 18:00:13,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460126422] [2023-12-16 18:00:13,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:00:13,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 18:00:13,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:13,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 18:00:13,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 18:00:13,290 INFO L87 Difference]: Start difference. First operand has 80 states, 78 states have (on average 1.7692307692307692) internal successors, (138), 79 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:13,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:13,319 INFO L93 Difference]: Finished difference Result 131 states and 223 transitions. [2023-12-16 18:00:13,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 18:00:13,322 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2023-12-16 18:00:13,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:13,329 INFO L225 Difference]: With dead ends: 131 [2023-12-16 18:00:13,329 INFO L226 Difference]: Without dead ends: 78 [2023-12-16 18:00:13,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 18:00:13,334 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:13,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:00:13,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-16 18:00:13,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-12-16 18:00:13,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.7272727272727273) internal successors, (133), 77 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:13,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 133 transitions. [2023-12-16 18:00:13,367 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 133 transitions. Word has length 26 [2023-12-16 18:00:13,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:13,368 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 133 transitions. [2023-12-16 18:00:13,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:13,368 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 133 transitions. [2023-12-16 18:00:13,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-16 18:00:13,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:13,370 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] [2023-12-16 18:00:13,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 18:00:13,572 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 [2023-12-16 18:00:13,573 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:13,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:13,574 INFO L85 PathProgramCache]: Analyzing trace with hash -298220855, now seen corresponding path program 1 times [2023-12-16 18:00:13,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:13,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229187767] [2023-12-16 18:00:13,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:13,577 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 [2023-12-16 18:00:13,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:13,586 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) [2023-12-16 18:00:13,590 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 [2023-12-16 18:00:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:13,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 18:00:13,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:13,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:13,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:00:13,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:13,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1229187767] [2023-12-16 18:00:13,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1229187767] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:00:13,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:00:13,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:00:13,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836454243] [2023-12-16 18:00:13,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:00:13,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:00:13,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:13,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:00:13,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:00:13,669 INFO L87 Difference]: Start difference. First operand 78 states and 133 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:13,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:13,710 INFO L93 Difference]: Finished difference Result 131 states and 217 transitions. [2023-12-16 18:00:13,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:00:13,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2023-12-16 18:00:13,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:13,711 INFO L225 Difference]: With dead ends: 131 [2023-12-16 18:00:13,712 INFO L226 Difference]: Without dead ends: 78 [2023-12-16 18:00:13,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:00:13,713 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:13,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 363 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:00:13,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-16 18:00:13,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-12-16 18:00:13,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.4155844155844155) internal successors, (109), 77 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:13,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 109 transitions. [2023-12-16 18:00:13,717 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 109 transitions. Word has length 26 [2023-12-16 18:00:13,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:13,718 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 109 transitions. [2023-12-16 18:00:13,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:13,718 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 109 transitions. [2023-12-16 18:00:13,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-16 18:00:13,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:13,719 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] [2023-12-16 18:00:13,725 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 [2023-12-16 18:00:13,921 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 [2023-12-16 18:00:13,922 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:13,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:13,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1362711976, now seen corresponding path program 1 times [2023-12-16 18:00:13,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:13,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [839506961] [2023-12-16 18:00:13,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:13,923 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 [2023-12-16 18:00:13,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:13,924 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) [2023-12-16 18:00:13,951 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 [2023-12-16 18:00:13,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:13,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:00:13,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:14,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:14,050 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:00:14,051 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:14,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [839506961] [2023-12-16 18:00:14,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [839506961] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:00:14,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:00:14,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:00:14,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69721854] [2023-12-16 18:00:14,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:00:14,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:00:14,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:14,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:00:14,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:14,061 INFO L87 Difference]: Start difference. First operand 78 states and 109 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:14,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:14,088 INFO L93 Difference]: Finished difference Result 170 states and 257 transitions. [2023-12-16 18:00:14,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:00:14,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2023-12-16 18:00:14,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:14,089 INFO L225 Difference]: With dead ends: 170 [2023-12-16 18:00:14,089 INFO L226 Difference]: Without dead ends: 120 [2023-12-16 18:00:14,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:14,090 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 61 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:14,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 218 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:00:14,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-12-16 18:00:14,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118. [2023-12-16 18:00:14,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 117 states have (on average 1.4871794871794872) internal successors, (174), 117 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:14,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 174 transitions. [2023-12-16 18:00:14,098 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 174 transitions. Word has length 49 [2023-12-16 18:00:14,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:14,098 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 174 transitions. [2023-12-16 18:00:14,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:14,099 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 174 transitions. [2023-12-16 18:00:14,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-16 18:00:14,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:14,100 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] [2023-12-16 18:00:14,106 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 [2023-12-16 18:00:14,302 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 [2023-12-16 18:00:14,302 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:14,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:14,303 INFO L85 PathProgramCache]: Analyzing trace with hash -451507977, now seen corresponding path program 1 times [2023-12-16 18:00:14,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:14,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [279643039] [2023-12-16 18:00:14,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:14,304 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 [2023-12-16 18:00:14,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:14,308 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) [2023-12-16 18:00:14,312 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 [2023-12-16 18:00:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:14,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 18:00:14,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:14,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:14,716 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:00:14,716 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:14,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [279643039] [2023-12-16 18:00:14,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [279643039] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:00:14,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:00:14,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 18:00:14,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459475530] [2023-12-16 18:00:14,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:00:14,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:00:14,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:14,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:00:14,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:00:14,717 INFO L87 Difference]: Start difference. First operand 118 states and 174 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:14,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:14,794 INFO L93 Difference]: Finished difference Result 568 states and 904 transitions. [2023-12-16 18:00:14,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 18:00:14,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2023-12-16 18:00:14,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:14,797 INFO L225 Difference]: With dead ends: 568 [2023-12-16 18:00:14,797 INFO L226 Difference]: Without dead ends: 478 [2023-12-16 18:00:14,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:00:14,798 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 360 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:14,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 503 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:00:14,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2023-12-16 18:00:14,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 206. [2023-12-16 18:00:14,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 205 states have (on average 1.5365853658536586) internal successors, (315), 205 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:14,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 315 transitions. [2023-12-16 18:00:14,810 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 315 transitions. Word has length 49 [2023-12-16 18:00:14,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:14,810 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 315 transitions. [2023-12-16 18:00:14,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:14,810 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 315 transitions. [2023-12-16 18:00:14,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-16 18:00:14,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:14,811 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] [2023-12-16 18:00:14,819 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 [2023-12-16 18:00:15,013 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 [2023-12-16 18:00:15,013 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:15,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:15,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1124876253, now seen corresponding path program 1 times [2023-12-16 18:00:15,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:15,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530246] [2023-12-16 18:00:15,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:15,014 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:00:15,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:15,015 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) [2023-12-16 18:00:15,021 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 [2023-12-16 18:00:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:15,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 18:00:15,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:15,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:15,096 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:00:15,096 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:15,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530246] [2023-12-16 18:00:15,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:00:15,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:00:15,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:00:15,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121788237] [2023-12-16 18:00:15,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:00:15,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:00:15,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:15,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:00:15,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:00:15,098 INFO L87 Difference]: Start difference. First operand 206 states and 315 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:15,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:15,115 INFO L93 Difference]: Finished difference Result 220 states and 332 transitions. [2023-12-16 18:00:15,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:00:15,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2023-12-16 18:00:15,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:15,116 INFO L225 Difference]: With dead ends: 220 [2023-12-16 18:00:15,116 INFO L226 Difference]: Without dead ends: 218 [2023-12-16 18:00:15,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:00:15,117 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 1 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:15,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 308 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:00:15,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-12-16 18:00:15,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 214. [2023-12-16 18:00:15,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 1.516431924882629) internal successors, (323), 213 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:15,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 323 transitions. [2023-12-16 18:00:15,123 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 323 transitions. Word has length 50 [2023-12-16 18:00:15,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:15,123 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 323 transitions. [2023-12-16 18:00:15,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:15,123 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 323 transitions. [2023-12-16 18:00:15,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-16 18:00:15,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:15,124 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] [2023-12-16 18:00:15,128 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 [2023-12-16 18:00:15,326 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 [2023-12-16 18:00:15,326 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:15,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:15,327 INFO L85 PathProgramCache]: Analyzing trace with hash -510394977, now seen corresponding path program 1 times [2023-12-16 18:00:15,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:15,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635568448] [2023-12-16 18:00:15,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:15,327 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 [2023-12-16 18:00:15,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:15,329 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) [2023-12-16 18:00:15,331 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 [2023-12-16 18:00:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:15,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:00:15,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:15,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:15,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:00:15,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:15,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635568448] [2023-12-16 18:00:15,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635568448] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:00:15,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:00:15,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:00:15,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144163968] [2023-12-16 18:00:15,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:00:15,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:00:15,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:15,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:00:15,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:15,426 INFO L87 Difference]: Start difference. First operand 214 states and 323 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:15,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:15,441 INFO L93 Difference]: Finished difference Result 558 states and 865 transitions. [2023-12-16 18:00:15,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:00:15,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2023-12-16 18:00:15,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:15,442 INFO L225 Difference]: With dead ends: 558 [2023-12-16 18:00:15,442 INFO L226 Difference]: Without dead ends: 372 [2023-12-16 18:00:15,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:15,443 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 49 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:15,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 178 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:00:15,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-12-16 18:00:15,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 366. [2023-12-16 18:00:15,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 365 states have (on average 1.526027397260274) internal successors, (557), 365 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:15,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 557 transitions. [2023-12-16 18:00:15,467 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 557 transitions. Word has length 51 [2023-12-16 18:00:15,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:15,467 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 557 transitions. [2023-12-16 18:00:15,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:15,468 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 557 transitions. [2023-12-16 18:00:15,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 18:00:15,471 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:15,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:00:15,484 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 [2023-12-16 18:00:15,676 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 [2023-12-16 18:00:15,676 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:15,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:15,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1323600906, now seen corresponding path program 1 times [2023-12-16 18:00:15,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:15,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179230618] [2023-12-16 18:00:15,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:15,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:00:15,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:15,678 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) [2023-12-16 18:00:15,682 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 [2023-12-16 18:00:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:15,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:00:15,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:15,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:15,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:00:15,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:15,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179230618] [2023-12-16 18:00:15,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179230618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:00:15,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:00:15,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:00:15,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100567756] [2023-12-16 18:00:15,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:00:15,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:00:15,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:15,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:00:15,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:15,804 INFO L87 Difference]: Start difference. First operand 366 states and 557 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:15,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:15,829 INFO L93 Difference]: Finished difference Result 978 states and 1503 transitions. [2023-12-16 18:00:15,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:00:15,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2023-12-16 18:00:15,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:15,834 INFO L225 Difference]: With dead ends: 978 [2023-12-16 18:00:15,834 INFO L226 Difference]: Without dead ends: 640 [2023-12-16 18:00:15,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:15,836 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 57 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:15,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 216 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:00:15,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2023-12-16 18:00:15,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 638. [2023-12-16 18:00:15,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 637 states have (on average 1.5149136577708007) internal successors, (965), 637 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:15,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 965 transitions. [2023-12-16 18:00:15,864 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 965 transitions. Word has length 52 [2023-12-16 18:00:15,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:15,864 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 965 transitions. [2023-12-16 18:00:15,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:15,864 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 965 transitions. [2023-12-16 18:00:15,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 18:00:15,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:15,865 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] [2023-12-16 18:00:15,884 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 [2023-12-16 18:00:16,067 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 [2023-12-16 18:00:16,067 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:16,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:16,068 INFO L85 PathProgramCache]: Analyzing trace with hash 667545162, now seen corresponding path program 1 times [2023-12-16 18:00:16,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:16,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098824387] [2023-12-16 18:00:16,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:16,069 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 [2023-12-16 18:00:16,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:16,070 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) [2023-12-16 18:00:16,072 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 [2023-12-16 18:00:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:16,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:00:16,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:16,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:16,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:00:16,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:16,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098824387] [2023-12-16 18:00:16,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2098824387] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:00:16,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:00:16,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:00:16,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340631992] [2023-12-16 18:00:16,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:00:16,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:00:16,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:16,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:00:16,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:16,175 INFO L87 Difference]: Start difference. First operand 638 states and 965 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:16,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:16,195 INFO L93 Difference]: Finished difference Result 1730 states and 2615 transitions. [2023-12-16 18:00:16,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:00:16,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2023-12-16 18:00:16,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:16,198 INFO L225 Difference]: With dead ends: 1730 [2023-12-16 18:00:16,198 INFO L226 Difference]: Without dead ends: 1120 [2023-12-16 18:00:16,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:16,200 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 65 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:16,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 232 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:00:16,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2023-12-16 18:00:16,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1118. [2023-12-16 18:00:16,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 1117 states have (on average 1.487018800358102) internal successors, (1661), 1117 states have internal predecessors, (1661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:16,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1661 transitions. [2023-12-16 18:00:16,218 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1661 transitions. Word has length 52 [2023-12-16 18:00:16,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:16,219 INFO L495 AbstractCegarLoop]: Abstraction has 1118 states and 1661 transitions. [2023-12-16 18:00:16,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:16,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1661 transitions. [2023-12-16 18:00:16,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 18:00:16,219 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:16,219 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] [2023-12-16 18:00:16,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 18:00:16,421 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 [2023-12-16 18:00:16,422 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:16,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:16,423 INFO L85 PathProgramCache]: Analyzing trace with hash 716454880, now seen corresponding path program 1 times [2023-12-16 18:00:16,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:16,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368199240] [2023-12-16 18:00:16,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:16,423 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 [2023-12-16 18:00:16,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:16,424 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) [2023-12-16 18:00:16,444 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 [2023-12-16 18:00:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:16,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:00:16,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:16,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:16,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:00:16,496 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:16,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368199240] [2023-12-16 18:00:16,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368199240] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:00:16,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:00:16,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:00:16,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398694206] [2023-12-16 18:00:16,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:00:16,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:00:16,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:16,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:00:16,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:16,497 INFO L87 Difference]: Start difference. First operand 1118 states and 1661 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:16,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:16,521 INFO L93 Difference]: Finished difference Result 2197 states and 3299 transitions. [2023-12-16 18:00:16,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:00:16,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2023-12-16 18:00:16,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:16,526 INFO L225 Difference]: With dead ends: 2197 [2023-12-16 18:00:16,526 INFO L226 Difference]: Without dead ends: 1586 [2023-12-16 18:00:16,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:16,527 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 66 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:16,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 243 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:00:16,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2023-12-16 18:00:16,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1584. [2023-12-16 18:00:16,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 1.4801010739102969) internal successors, (2343), 1583 states have internal predecessors, (2343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:16,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2343 transitions. [2023-12-16 18:00:16,591 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2343 transitions. Word has length 53 [2023-12-16 18:00:16,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:16,591 INFO L495 AbstractCegarLoop]: Abstraction has 1584 states and 2343 transitions. [2023-12-16 18:00:16,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:16,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2343 transitions. [2023-12-16 18:00:16,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-16 18:00:16,592 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:16,592 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:00:16,608 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 [2023-12-16 18:00:16,794 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 [2023-12-16 18:00:16,795 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:16,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:16,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1948917228, now seen corresponding path program 1 times [2023-12-16 18:00:16,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:16,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1142100160] [2023-12-16 18:00:16,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:16,796 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 [2023-12-16 18:00:16,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:16,803 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) [2023-12-16 18:00:16,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 18:00:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:16,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:00:16,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:16,880 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:16,880 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:00:16,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:16,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1142100160] [2023-12-16 18:00:16,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1142100160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:00:16,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:00:16,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:00:16,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557036204] [2023-12-16 18:00:16,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:00:16,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:00:16,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:16,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:00:16,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:16,881 INFO L87 Difference]: Start difference. First operand 1584 states and 2343 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:16,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:16,902 INFO L93 Difference]: Finished difference Result 2686 states and 3995 transitions. [2023-12-16 18:00:16,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:00:16,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2023-12-16 18:00:16,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:16,905 INFO L225 Difference]: With dead ends: 2686 [2023-12-16 18:00:16,905 INFO L226 Difference]: Without dead ends: 1132 [2023-12-16 18:00:16,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:16,907 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 57 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:16,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 232 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:00:16,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2023-12-16 18:00:16,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1130. [2023-12-16 18:00:16,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 1129 states have (on average 1.4738706820194862) internal successors, (1664), 1129 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:16,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 1664 transitions. [2023-12-16 18:00:16,924 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 1664 transitions. Word has length 74 [2023-12-16 18:00:16,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:16,924 INFO L495 AbstractCegarLoop]: Abstraction has 1130 states and 1664 transitions. [2023-12-16 18:00:16,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:16,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 1664 transitions. [2023-12-16 18:00:16,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-16 18:00:16,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:16,925 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:00:16,930 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 [2023-12-16 18:00:17,127 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 [2023-12-16 18:00:17,128 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:17,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:17,128 INFO L85 PathProgramCache]: Analyzing trace with hash 933398655, now seen corresponding path program 1 times [2023-12-16 18:00:17,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:17,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094732116] [2023-12-16 18:00:17,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:17,128 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 [2023-12-16 18:00:17,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:17,130 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) [2023-12-16 18:00:17,160 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 [2023-12-16 18:00:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:17,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:00:17,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:17,607 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:17,607 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:00:17,916 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:17,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:17,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094732116] [2023-12-16 18:00:17,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094732116] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:00:17,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:00:17,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-16 18:00:17,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830163852] [2023-12-16 18:00:17,917 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:00:17,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 18:00:17,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:17,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 18:00:17,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-12-16 18:00:17,918 INFO L87 Difference]: Start difference. First operand 1130 states and 1664 transitions. Second operand has 16 states, 16 states have (on average 8.125) internal successors, (130), 15 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:18,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:18,505 INFO L93 Difference]: Finished difference Result 3914 states and 5709 transitions. [2023-12-16 18:00:18,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 18:00:18,505 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.125) internal successors, (130), 15 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-12-16 18:00:18,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:18,512 INFO L225 Difference]: With dead ends: 3914 [2023-12-16 18:00:18,512 INFO L226 Difference]: Without dead ends: 2840 [2023-12-16 18:00:18,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=186, Invalid=516, Unknown=0, NotChecked=0, Total=702 [2023-12-16 18:00:18,515 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 922 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:18,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 502 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 18:00:18,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2840 states. [2023-12-16 18:00:18,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2840 to 2332. [2023-12-16 18:00:18,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2332 states, 2331 states have (on average 1.4697554697554698) internal successors, (3426), 2331 states have internal predecessors, (3426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:18,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 3426 transitions. [2023-12-16 18:00:18,563 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 3426 transitions. Word has length 75 [2023-12-16 18:00:18,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:18,564 INFO L495 AbstractCegarLoop]: Abstraction has 2332 states and 3426 transitions. [2023-12-16 18:00:18,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.125) internal successors, (130), 15 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:18,564 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 3426 transitions. [2023-12-16 18:00:18,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 18:00:18,564 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:18,565 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:00:18,569 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 [2023-12-16 18:00:18,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:00:18,767 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:18,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:18,768 INFO L85 PathProgramCache]: Analyzing trace with hash -357809894, now seen corresponding path program 1 times [2023-12-16 18:00:18,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:18,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113018875] [2023-12-16 18:00:18,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:18,768 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 [2023-12-16 18:00:18,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:18,769 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) [2023-12-16 18:00:18,796 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 [2023-12-16 18:00:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:18,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:00:18,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:18,847 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:18,848 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:00:18,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:18,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113018875] [2023-12-16 18:00:18,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2113018875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:00:18,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:00:18,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:00:18,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448826245] [2023-12-16 18:00:18,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:00:18,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:00:18,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:18,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:00:18,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:18,849 INFO L87 Difference]: Start difference. First operand 2332 states and 3426 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:18,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:18,941 INFO L93 Difference]: Finished difference Result 6835 states and 10045 transitions. [2023-12-16 18:00:18,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:00:18,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2023-12-16 18:00:18,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:18,953 INFO L225 Difference]: With dead ends: 6835 [2023-12-16 18:00:18,953 INFO L226 Difference]: Without dead ends: 4569 [2023-12-16 18:00:18,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:18,955 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 54 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:18,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 204 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:00:18,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4569 states. [2023-12-16 18:00:19,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4569 to 4567. [2023-12-16 18:00:19,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4567 states, 4566 states have (on average 1.4513797634691197) internal successors, (6627), 4566 states have internal predecessors, (6627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:19,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4567 states to 4567 states and 6627 transitions. [2023-12-16 18:00:19,047 INFO L78 Accepts]: Start accepts. Automaton has 4567 states and 6627 transitions. Word has length 76 [2023-12-16 18:00:19,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:19,048 INFO L495 AbstractCegarLoop]: Abstraction has 4567 states and 6627 transitions. [2023-12-16 18:00:19,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:19,048 INFO L276 IsEmpty]: Start isEmpty. Operand 4567 states and 6627 transitions. [2023-12-16 18:00:19,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 18:00:19,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:19,049 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:00:19,067 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 [2023-12-16 18:00:19,252 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 [2023-12-16 18:00:19,252 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:19,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:19,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1341029928, now seen corresponding path program 1 times [2023-12-16 18:00:19,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:19,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1389130408] [2023-12-16 18:00:19,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:19,253 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 [2023-12-16 18:00:19,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:19,254 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) [2023-12-16 18:00:19,282 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 [2023-12-16 18:00:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:19,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 18:00:19,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:19,831 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:19,831 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:00:20,079 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:20,080 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:20,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1389130408] [2023-12-16 18:00:20,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1389130408] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:00:20,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:00:20,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-16 18:00:20,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696673918] [2023-12-16 18:00:20,080 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:00:20,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 18:00:20,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:20,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 18:00:20,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-16 18:00:20,081 INFO L87 Difference]: Start difference. First operand 4567 states and 6627 transitions. Second operand has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:21,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:21,754 INFO L93 Difference]: Finished difference Result 16567 states and 23917 transitions. [2023-12-16 18:00:21,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-16 18:00:21,754 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2023-12-16 18:00:21,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:21,788 INFO L225 Difference]: With dead ends: 16567 [2023-12-16 18:00:21,788 INFO L226 Difference]: Without dead ends: 12081 [2023-12-16 18:00:21,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=286, Invalid=904, Unknown=0, NotChecked=0, Total=1190 [2023-12-16 18:00:21,796 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1089 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:21,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 1500 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 18:00:21,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12081 states. [2023-12-16 18:00:22,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12081 to 10415. [2023-12-16 18:00:22,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10415 states, 10414 states have (on average 1.4420011522949876) internal successors, (15017), 10414 states have internal predecessors, (15017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:22,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10415 states to 10415 states and 15017 transitions. [2023-12-16 18:00:22,113 INFO L78 Accepts]: Start accepts. Automaton has 10415 states and 15017 transitions. Word has length 76 [2023-12-16 18:00:22,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:22,114 INFO L495 AbstractCegarLoop]: Abstraction has 10415 states and 15017 transitions. [2023-12-16 18:00:22,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:22,114 INFO L276 IsEmpty]: Start isEmpty. Operand 10415 states and 15017 transitions. [2023-12-16 18:00:22,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 18:00:22,116 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:22,116 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:00:22,119 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 (14)] Ended with exit code 0 [2023-12-16 18:00:22,318 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 [2023-12-16 18:00:22,319 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:22,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:22,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1211396931, now seen corresponding path program 1 times [2023-12-16 18:00:22,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:22,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861060819] [2023-12-16 18:00:22,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:22,320 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 [2023-12-16 18:00:22,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:22,322 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) [2023-12-16 18:00:22,322 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 [2023-12-16 18:00:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:22,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:00:22,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:22,412 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:22,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:00:22,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:22,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861060819] [2023-12-16 18:00:22,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861060819] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:00:22,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:00:22,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:00:22,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083416279] [2023-12-16 18:00:22,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:00:22,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:00:22,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:22,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:00:22,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:22,413 INFO L87 Difference]: Start difference. First operand 10415 states and 15017 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:22,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:22,525 INFO L93 Difference]: Finished difference Result 15575 states and 22471 transitions. [2023-12-16 18:00:22,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:00:22,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2023-12-16 18:00:22,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:22,535 INFO L225 Difference]: With dead ends: 15575 [2023-12-16 18:00:22,535 INFO L226 Difference]: Without dead ends: 5261 [2023-12-16 18:00:22,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:22,546 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 48 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:22,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 213 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:00:22,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2023-12-16 18:00:22,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 5259. [2023-12-16 18:00:22,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 1.4250665652339292) internal successors, (7493), 5258 states have internal predecessors, (7493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:22,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 7493 transitions. [2023-12-16 18:00:22,745 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 7493 transitions. Word has length 76 [2023-12-16 18:00:22,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:22,745 INFO L495 AbstractCegarLoop]: Abstraction has 5259 states and 7493 transitions. [2023-12-16 18:00:22,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:22,745 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 7493 transitions. [2023-12-16 18:00:22,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 18:00:22,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:22,747 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:00:22,766 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 (15)] Ended with exit code 0 [2023-12-16 18:00:22,966 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 [2023-12-16 18:00:22,967 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:22,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:22,967 INFO L85 PathProgramCache]: Analyzing trace with hash 911958366, now seen corresponding path program 1 times [2023-12-16 18:00:22,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:22,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757106960] [2023-12-16 18:00:22,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:22,968 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 [2023-12-16 18:00:22,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:22,985 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) [2023-12-16 18:00:23,045 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 [2023-12-16 18:00:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:23,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:00:23,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:23,536 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:23,536 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:00:23,685 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:23,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:23,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757106960] [2023-12-16 18:00:23,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757106960] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:00:23,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:00:23,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-16 18:00:23,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898141049] [2023-12-16 18:00:23,686 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:00:23,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 18:00:23,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:23,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 18:00:23,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-12-16 18:00:23,687 INFO L87 Difference]: Start difference. First operand 5259 states and 7493 transitions. Second operand has 16 states, 16 states have (on average 8.5) internal successors, (136), 15 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:24,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:24,445 INFO L93 Difference]: Finished difference Result 14881 states and 21174 transitions. [2023-12-16 18:00:24,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 18:00:24,446 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.5) internal successors, (136), 15 states have internal predecessors, (136), 0 states have call successors, (0), 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 76 [2023-12-16 18:00:24,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:24,485 INFO L225 Difference]: With dead ends: 14881 [2023-12-16 18:00:24,486 INFO L226 Difference]: Without dead ends: 11927 [2023-12-16 18:00:24,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2023-12-16 18:00:24,491 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 782 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:24,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 777 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 18:00:24,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11927 states. [2023-12-16 18:00:24,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11927 to 10567. [2023-12-16 18:00:24,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10567 states, 10566 states have (on average 1.4237175847056596) internal successors, (15043), 10566 states have internal predecessors, (15043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:24,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10567 states to 10567 states and 15043 transitions. [2023-12-16 18:00:24,803 INFO L78 Accepts]: Start accepts. Automaton has 10567 states and 15043 transitions. Word has length 76 [2023-12-16 18:00:24,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:24,803 INFO L495 AbstractCegarLoop]: Abstraction has 10567 states and 15043 transitions. [2023-12-16 18:00:24,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.5) internal successors, (136), 15 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:24,803 INFO L276 IsEmpty]: Start isEmpty. Operand 10567 states and 15043 transitions. [2023-12-16 18:00:24,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 18:00:24,805 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:24,805 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:00:24,820 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 [2023-12-16 18:00:25,023 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 [2023-12-16 18:00:25,023 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:25,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:25,024 INFO L85 PathProgramCache]: Analyzing trace with hash -601149191, now seen corresponding path program 1 times [2023-12-16 18:00:25,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:25,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528299636] [2023-12-16 18:00:25,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:25,024 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:00:25,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:25,025 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) [2023-12-16 18:00:25,027 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 [2023-12-16 18:00:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:25,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:00:25,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:25,695 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:25,695 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:00:25,917 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:25,917 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:25,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1528299636] [2023-12-16 18:00:25,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1528299636] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:00:25,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:00:25,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-16 18:00:25,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543819327] [2023-12-16 18:00:25,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:00:25,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 18:00:25,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:25,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 18:00:25,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-12-16 18:00:25,919 INFO L87 Difference]: Start difference. First operand 10567 states and 15043 transitions. Second operand has 16 states, 16 states have (on average 8.75) internal successors, (140), 15 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:27,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:27,066 INFO L93 Difference]: Finished difference Result 45913 states and 65398 transitions. [2023-12-16 18:00:27,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 18:00:27,067 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.75) internal successors, (140), 15 states have internal predecessors, (140), 0 states have call successors, (0), 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 76 [2023-12-16 18:00:27,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:27,108 INFO L225 Difference]: With dead ends: 45913 [2023-12-16 18:00:27,108 INFO L226 Difference]: Without dead ends: 35447 [2023-12-16 18:00:27,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2023-12-16 18:00:27,121 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 982 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:27,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 647 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 18:00:27,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35447 states. [2023-12-16 18:00:27,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35447 to 24893. [2023-12-16 18:00:27,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24893 states, 24892 states have (on average 1.4188896030853286) internal successors, (35319), 24892 states have internal predecessors, (35319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:27,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24893 states to 24893 states and 35319 transitions. [2023-12-16 18:00:27,923 INFO L78 Accepts]: Start accepts. Automaton has 24893 states and 35319 transitions. Word has length 76 [2023-12-16 18:00:27,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:27,923 INFO L495 AbstractCegarLoop]: Abstraction has 24893 states and 35319 transitions. [2023-12-16 18:00:27,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.75) internal successors, (140), 15 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:27,923 INFO L276 IsEmpty]: Start isEmpty. Operand 24893 states and 35319 transitions. [2023-12-16 18:00:27,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 18:00:27,926 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:27,926 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:00:27,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-16 18:00:28,131 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 [2023-12-16 18:00:28,131 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:28,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:28,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1107434536, now seen corresponding path program 1 times [2023-12-16 18:00:28,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:28,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380436375] [2023-12-16 18:00:28,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:28,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:00:28,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:28,134 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) [2023-12-16 18:00:28,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 18:00:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:28,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:00:28,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:28,212 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:28,212 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:00:28,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:28,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380436375] [2023-12-16 18:00:28,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380436375] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:00:28,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:00:28,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:00:28,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376627661] [2023-12-16 18:00:28,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:00:28,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:00:28,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:28,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:00:28,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:28,216 INFO L87 Difference]: Start difference. First operand 24893 states and 35319 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:28,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:28,525 INFO L93 Difference]: Finished difference Result 38943 states and 55233 transitions. [2023-12-16 18:00:28,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:00:28,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2023-12-16 18:00:28,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:28,540 INFO L225 Difference]: With dead ends: 38943 [2023-12-16 18:00:28,540 INFO L226 Difference]: Without dead ends: 14211 [2023-12-16 18:00:28,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:28,559 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 42 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:28,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 194 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:00:28,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14211 states. [2023-12-16 18:00:28,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14211 to 14209. [2023-12-16 18:00:28,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14209 states, 14208 states have (on average 1.3943552927927927) internal successors, (19811), 14208 states have internal predecessors, (19811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:28,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14209 states to 14209 states and 19811 transitions. [2023-12-16 18:00:28,985 INFO L78 Accepts]: Start accepts. Automaton has 14209 states and 19811 transitions. Word has length 76 [2023-12-16 18:00:28,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:28,985 INFO L495 AbstractCegarLoop]: Abstraction has 14209 states and 19811 transitions. [2023-12-16 18:00:28,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:28,985 INFO L276 IsEmpty]: Start isEmpty. Operand 14209 states and 19811 transitions. [2023-12-16 18:00:28,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 18:00:28,987 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:28,987 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:00:28,989 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 [2023-12-16 18:00:29,189 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 [2023-12-16 18:00:29,190 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:29,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:29,190 INFO L85 PathProgramCache]: Analyzing trace with hash -368311645, now seen corresponding path program 1 times [2023-12-16 18:00:29,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:29,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296548594] [2023-12-16 18:00:29,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:29,190 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 [2023-12-16 18:00:29,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:29,191 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) [2023-12-16 18:00:29,194 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 [2023-12-16 18:00:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:29,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:00:29,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:29,319 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:29,320 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:00:29,320 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:29,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296548594] [2023-12-16 18:00:29,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296548594] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:00:29,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:00:29,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:00:29,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177096599] [2023-12-16 18:00:29,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:00:29,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:00:29,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:29,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:00:29,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:29,321 INFO L87 Difference]: Start difference. First operand 14209 states and 19811 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:29,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:29,814 INFO L93 Difference]: Finished difference Result 41909 states and 58189 transitions. [2023-12-16 18:00:29,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:00:29,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2023-12-16 18:00:29,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:29,851 INFO L225 Difference]: With dead ends: 41909 [2023-12-16 18:00:29,852 INFO L226 Difference]: Without dead ends: 27861 [2023-12-16 18:00:29,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:29,863 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 51 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:29,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 216 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:00:29,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27861 states. [2023-12-16 18:00:30,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27861 to 27859. [2023-12-16 18:00:30,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27859 states, 27858 states have (on average 1.371203962954986) internal successors, (38199), 27858 states have internal predecessors, (38199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:30,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27859 states to 27859 states and 38199 transitions. [2023-12-16 18:00:30,675 INFO L78 Accepts]: Start accepts. Automaton has 27859 states and 38199 transitions. Word has length 77 [2023-12-16 18:00:30,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:30,676 INFO L495 AbstractCegarLoop]: Abstraction has 27859 states and 38199 transitions. [2023-12-16 18:00:30,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:30,676 INFO L276 IsEmpty]: Start isEmpty. Operand 27859 states and 38199 transitions. [2023-12-16 18:00:30,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 18:00:30,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:30,695 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:00:30,700 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 [2023-12-16 18:00:30,895 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 [2023-12-16 18:00:30,895 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:30,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:30,896 INFO L85 PathProgramCache]: Analyzing trace with hash -478484975, now seen corresponding path program 1 times [2023-12-16 18:00:30,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:30,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628604968] [2023-12-16 18:00:30,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:30,896 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 [2023-12-16 18:00:30,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:30,897 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) [2023-12-16 18:00:30,900 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 [2023-12-16 18:00:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:30,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 18:00:30,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:31,531 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:31,531 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:00:31,761 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:31,761 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:31,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628604968] [2023-12-16 18:00:31,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628604968] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:00:31,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:00:31,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-16 18:00:31,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104730079] [2023-12-16 18:00:31,762 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:00:31,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 18:00:31,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:31,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 18:00:31,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-16 18:00:31,763 INFO L87 Difference]: Start difference. First operand 27859 states and 38199 transitions. Second operand has 16 states, 16 states have (on average 9.0) internal successors, (144), 16 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:34,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:34,200 INFO L93 Difference]: Finished difference Result 100309 states and 136665 transitions. [2023-12-16 18:00:34,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-16 18:00:34,201 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.0) internal successors, (144), 16 states have internal predecessors, (144), 0 states have call successors, (0), 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 77 [2023-12-16 18:00:34,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:34,294 INFO L225 Difference]: With dead ends: 100309 [2023-12-16 18:00:34,295 INFO L226 Difference]: Without dead ends: 72601 [2023-12-16 18:00:34,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=284, Invalid=976, Unknown=0, NotChecked=0, Total=1260 [2023-12-16 18:00:34,322 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 898 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:34,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [898 Valid, 1490 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 18:00:34,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72601 states. [2023-12-16 18:00:36,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72601 to 63063. [2023-12-16 18:00:36,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63063 states, 63062 states have (on average 1.3605182201642827) internal successors, (85797), 63062 states have internal predecessors, (85797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:36,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63063 states to 63063 states and 85797 transitions. [2023-12-16 18:00:36,391 INFO L78 Accepts]: Start accepts. Automaton has 63063 states and 85797 transitions. Word has length 77 [2023-12-16 18:00:36,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:36,391 INFO L495 AbstractCegarLoop]: Abstraction has 63063 states and 85797 transitions. [2023-12-16 18:00:36,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.0) internal successors, (144), 16 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:36,391 INFO L276 IsEmpty]: Start isEmpty. Operand 63063 states and 85797 transitions. [2023-12-16 18:00:36,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 18:00:36,396 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:36,397 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:00:36,401 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 [2023-12-16 18:00:36,601 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 [2023-12-16 18:00:36,602 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:36,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:36,602 INFO L85 PathProgramCache]: Analyzing trace with hash 896937599, now seen corresponding path program 1 times [2023-12-16 18:00:36,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:36,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611891691] [2023-12-16 18:00:36,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:36,603 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 [2023-12-16 18:00:36,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:36,604 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) [2023-12-16 18:00:36,607 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 [2023-12-16 18:00:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:36,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:00:36,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:36,689 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:36,689 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:00:36,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:36,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611891691] [2023-12-16 18:00:36,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1611891691] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:00:36,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:00:36,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:00:36,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457400399] [2023-12-16 18:00:36,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:00:36,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:00:36,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:36,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:00:36,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:36,690 INFO L87 Difference]: Start difference. First operand 63063 states and 85797 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:37,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:37,725 INFO L93 Difference]: Finished difference Result 94775 states and 128599 transitions. [2023-12-16 18:00:37,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:00:37,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2023-12-16 18:00:37,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:37,762 INFO L225 Difference]: With dead ends: 94775 [2023-12-16 18:00:37,763 INFO L226 Difference]: Without dead ends: 31973 [2023-12-16 18:00:37,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:00:37,784 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 36 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:37,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 175 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:00:37,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31973 states. [2023-12-16 18:00:38,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31973 to 31971. [2023-12-16 18:00:38,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31971 states, 31970 states have (on average 1.3379730997810448) internal successors, (42775), 31970 states have internal predecessors, (42775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:38,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31971 states to 31971 states and 42775 transitions. [2023-12-16 18:00:38,660 INFO L78 Accepts]: Start accepts. Automaton has 31971 states and 42775 transitions. Word has length 77 [2023-12-16 18:00:38,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:38,660 INFO L495 AbstractCegarLoop]: Abstraction has 31971 states and 42775 transitions. [2023-12-16 18:00:38,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:38,661 INFO L276 IsEmpty]: Start isEmpty. Operand 31971 states and 42775 transitions. [2023-12-16 18:00:38,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 18:00:38,664 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:38,664 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:00:38,669 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 (21)] Ended with exit code 0 [2023-12-16 18:00:38,866 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 [2023-12-16 18:00:38,866 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:38,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:38,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1445907424, now seen corresponding path program 1 times [2023-12-16 18:00:38,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:38,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461083170] [2023-12-16 18:00:38,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:38,867 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 [2023-12-16 18:00:38,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:38,879 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) [2023-12-16 18:00:38,897 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 [2023-12-16 18:00:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:38,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:00:38,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:39,384 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:39,384 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:00:39,613 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:00:39,613 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:39,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461083170] [2023-12-16 18:00:39,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461083170] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:00:39,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:00:39,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-16 18:00:39,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784476096] [2023-12-16 18:00:39,614 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:00:39,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 18:00:39,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:39,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 18:00:39,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-12-16 18:00:39,616 INFO L87 Difference]: Start difference. First operand 31971 states and 42775 transitions. Second operand has 16 states, 16 states have (on average 9.125) internal successors, (146), 15 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:41,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:41,759 INFO L93 Difference]: Finished difference Result 114491 states and 153388 transitions. [2023-12-16 18:00:41,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 18:00:41,759 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.125) internal successors, (146), 15 states have internal predecessors, (146), 0 states have call successors, (0), 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 77 [2023-12-16 18:00:41,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:41,835 INFO L225 Difference]: With dead ends: 114491 [2023-12-16 18:00:41,836 INFO L226 Difference]: Without dead ends: 82781 [2023-12-16 18:00:41,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2023-12-16 18:00:41,857 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 1177 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:41,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 505 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:00:41,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82781 states. [2023-12-16 18:00:44,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82781 to 75697. [2023-12-16 18:00:44,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75697 states, 75696 states have (on average 1.3349582540689071) internal successors, (101051), 75696 states have internal predecessors, (101051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:44,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75697 states to 75697 states and 101051 transitions. [2023-12-16 18:00:44,178 INFO L78 Accepts]: Start accepts. Automaton has 75697 states and 101051 transitions. Word has length 77 [2023-12-16 18:00:44,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:44,178 INFO L495 AbstractCegarLoop]: Abstraction has 75697 states and 101051 transitions. [2023-12-16 18:00:44,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.125) internal successors, (146), 15 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:44,179 INFO L276 IsEmpty]: Start isEmpty. Operand 75697 states and 101051 transitions. [2023-12-16 18:00:44,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-16 18:00:44,185 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:44,185 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:00:44,190 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 [2023-12-16 18:00:44,388 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 [2023-12-16 18:00:44,388 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:44,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:44,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1441350690, now seen corresponding path program 1 times [2023-12-16 18:00:44,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:44,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602164688] [2023-12-16 18:00:44,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:44,389 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 [2023-12-16 18:00:44,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:44,390 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) [2023-12-16 18:00:44,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 18:00:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:44,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:00:44,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:00:44,522 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 18:00:44,522 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:00:44,597 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 18:00:44,598 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:00:44,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602164688] [2023-12-16 18:00:44,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602164688] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:00:44,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:00:44,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 18:00:44,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895823611] [2023-12-16 18:00:44,598 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:00:44,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:00:44,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:00:44,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:00:44,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:00:44,599 INFO L87 Difference]: Start difference. First operand 75697 states and 101051 transitions. Second operand has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:51,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:00:51,022 INFO L93 Difference]: Finished difference Result 306625 states and 406877 transitions. [2023-12-16 18:00:51,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 18:00:51,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-16 18:00:51,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:00:51,371 INFO L225 Difference]: With dead ends: 306625 [2023-12-16 18:00:51,371 INFO L226 Difference]: Without dead ends: 231289 [2023-12-16 18:00:51,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-16 18:00:51,476 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 297 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:00:51,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 453 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:00:51,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231289 states. [2023-12-16 18:00:58,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231289 to 229619. [2023-12-16 18:00:59,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229619 states, 229618 states have (on average 1.2822992970934335) internal successors, (294439), 229618 states have internal predecessors, (294439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:59,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229619 states to 229619 states and 294439 transitions. [2023-12-16 18:00:59,594 INFO L78 Accepts]: Start accepts. Automaton has 229619 states and 294439 transitions. Word has length 78 [2023-12-16 18:00:59,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:00:59,596 INFO L495 AbstractCegarLoop]: Abstraction has 229619 states and 294439 transitions. [2023-12-16 18:00:59,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:00:59,596 INFO L276 IsEmpty]: Start isEmpty. Operand 229619 states and 294439 transitions. [2023-12-16 18:00:59,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-16 18:00:59,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:00:59,613 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:00:59,615 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 (23)] Ended with exit code 0 [2023-12-16 18:00:59,815 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 [2023-12-16 18:00:59,815 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:00:59,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:00:59,815 INFO L85 PathProgramCache]: Analyzing trace with hash 2001237802, now seen corresponding path program 1 times [2023-12-16 18:00:59,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:00:59,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577579844] [2023-12-16 18:00:59,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:00:59,816 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 [2023-12-16 18:00:59,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:00:59,817 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) [2023-12-16 18:00:59,844 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 [2023-12-16 18:00:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:00:59,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 18:00:59,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:01:00,642 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:01:00,642 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:01:00,961 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:01:00,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:01:00,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577579844] [2023-12-16 18:01:00,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577579844] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:01:00,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:01:00,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-16 18:01:00,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536634211] [2023-12-16 18:01:00,963 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:01:00,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 18:01:00,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:01:00,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 18:01:00,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-16 18:01:00,964 INFO L87 Difference]: Start difference. First operand 229619 states and 294439 transitions. Second operand has 16 states, 16 states have (on average 9.375) internal successors, (150), 16 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:01:11,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:01:11,178 INFO L93 Difference]: Finished difference Result 599043 states and 765896 transitions. [2023-12-16 18:01:11,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 18:01:11,179 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.375) internal successors, (150), 16 states have internal predecessors, (150), 0 states have call successors, (0), 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 78 [2023-12-16 18:01:11,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:01:11,896 INFO L225 Difference]: With dead ends: 599043 [2023-12-16 18:01:11,896 INFO L226 Difference]: Without dead ends: 370657 [2023-12-16 18:01:12,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=195, Invalid=617, Unknown=0, NotChecked=0, Total=812 [2023-12-16 18:01:12,062 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 865 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 18:01:12,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 996 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 18:01:12,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370657 states. Received shutdown request... [2023-12-16 18:01:20,737 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 [2023-12-16 18:01:20,737 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 (24)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:01:21,744 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 [2023-12-16 18:01:21,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-16 18:01:22,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370657 to 299309. [2023-12-16 18:01:22,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299309 states, 299308 states have (on average 1.284259024149037) internal successors, (384389), 299308 states have internal predecessors, (384389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:01:22,920 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 18:01:22,921 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 18:01:22,960 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] [2023-12-16 18:01:22,962 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 18:01:22,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:01:22 BoogieIcfgContainer [2023-12-16 18:01:22,965 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 18:01:22,969 INFO L158 Benchmark]: Toolchain (without parser) took 70881.50ms. Allocated memory was 185.6MB in the beginning and 7.6GB in the end (delta: 7.5GB). Free memory was 131.6MB in the beginning and 5.4GB in the end (delta: -5.2GB). Peak memory consumption was 3.1GB. Max. memory is 8.0GB. [2023-12-16 18:01:22,969 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 185.6MB. Free memory is still 134.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 18:01:22,970 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.23ms. Allocated memory is still 185.6MB. Free memory was 131.4MB in the beginning and 115.7MB in the end (delta: 15.6MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 18:01:22,970 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.83ms. Allocated memory is still 185.6MB. Free memory was 115.5MB in the beginning and 113.1MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 18:01:22,970 INFO L158 Benchmark]: Boogie Preprocessor took 62.66ms. Allocated memory is still 185.6MB. Free memory was 113.1MB in the beginning and 110.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 18:01:22,970 INFO L158 Benchmark]: RCFGBuilder took 537.24ms. Allocated memory was 185.6MB in the beginning and 281.0MB in the end (delta: 95.4MB). Free memory was 110.0MB in the beginning and 239.7MB in the end (delta: -129.7MB). Peak memory consumption was 30.9MB. Max. memory is 8.0GB. [2023-12-16 18:01:22,970 INFO L158 Benchmark]: TraceAbstraction took 69903.93ms. Allocated memory was 281.0MB in the beginning and 7.6GB in the end (delta: 7.4GB). Free memory was 239.2MB in the beginning and 5.4GB in the end (delta: -5.1GB). Peak memory consumption was 3.1GB. Max. memory is 8.0GB. [2023-12-16 18:01:22,974 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 185.6MB. Free memory is still 134.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 308.23ms. Allocated memory is still 185.6MB. Free memory was 131.4MB in the beginning and 115.7MB in the end (delta: 15.6MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.83ms. Allocated memory is still 185.6MB. Free memory was 115.5MB in the beginning and 113.1MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.66ms. Allocated memory is still 185.6MB. Free memory was 113.1MB in the beginning and 110.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 537.24ms. Allocated memory was 185.6MB in the beginning and 281.0MB in the end (delta: 95.4MB). Free memory was 110.0MB in the beginning and 239.7MB in the end (delta: -129.7MB). Peak memory consumption was 30.9MB. Max. memory is 8.0GB. * TraceAbstraction took 69903.93ms. Allocated memory was 281.0MB in the beginning and 7.6GB in the end (delta: 7.4GB). Free memory was 239.2MB in the beginning and 5.4GB in the end (delta: -5.1GB). Peak memory consumption was 3.1GB. 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: 391]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 391). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 69.9s, OverallIterations: 23, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 29.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7959 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7959 mSDsluCounter, 10495 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7630 mSDsCounter, 156 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4770 IncrementalHoareTripleChecker+Invalid, 4926 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 156 mSolverCounterUnsat, 2865 mSDtfsCounter, 4770 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2161 GetRequests, 1938 SyntacticMatches, 0 SemanticMatches, 223 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229619occurred in iteration=22, InterpolantAutomatonStates: 183, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 27.4s AutomataMinimizationTime, 23 MinimizatonAttempts, 32682 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 1477 NumberOfCodeBlocks, 1477 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 2059 ConstructedInterpolants, 399 QuantifiedInterpolants, 15577 SizeOfPredicates, 55 NumberOfNonLiveVariables, 2930 ConjunctsInSsa, 102 ConjunctsInUnsatCore, 31 InterpolantComputations, 15 PerfectInterpolantSequences, 239/329 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