/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:57:08,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:57:08,092 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 07:57:08,095 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:57:08,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:57:08,109 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:57:08,110 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:57:08,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:57:08,110 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:57:08,110 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:57:08,111 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:57:08,111 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:57:08,111 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:57:08,111 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:57:08,112 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:57:08,112 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:57:08,112 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:57:08,112 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:57:08,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:57:08,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:57:08,113 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:57:08,116 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:57:08,116 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:57:08,116 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:57:08,116 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:57:08,116 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:57:08,116 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:57:08,116 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:57:08,117 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:57:08,117 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:57:08,117 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:57:08,118 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:57:08,118 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:57:08,118 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:57:08,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:57:08,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:57:08,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:57:08,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:57:08,118 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:57:08,119 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:57:08,119 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:57:08,119 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:57:08,119 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:57:08,119 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:57:08,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:57:08,119 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:57:08,120 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:57:08,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:57:08,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:57:08,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:57:08,319 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:57:08,320 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:57:08,321 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2023-12-16 07:57:09,455 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:57:09,842 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:57:09,842 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2023-12-16 07:57:09,867 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21613cf2c/67ebd50c0ffd4dcbb79d8a78534fbbe3/FLAG841ae30c5 [2023-12-16 07:57:09,880 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21613cf2c/67ebd50c0ffd4dcbb79d8a78534fbbe3 [2023-12-16 07:57:09,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:57:09,884 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:57:09,886 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:57:09,886 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:57:09,889 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:57:09,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:57:09" (1/1) ... [2023-12-16 07:57:09,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22714232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:09, skipping insertion in model container [2023-12-16 07:57:09,890 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:57:09" (1/1) ... [2023-12-16 07:57:10,011 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:57:10,290 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[11742,11755] [2023-12-16 07:57:10,354 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[19032,19045] [2023-12-16 07:57:10,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:57:10,882 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:57:10,914 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[11742,11755] [2023-12-16 07:57:10,928 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[19032,19045] [2023-12-16 07:57:11,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:57:11,296 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:57:11,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:11 WrapperNode [2023-12-16 07:57:11,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:57:11,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:57:11,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:57:11,298 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:57:11,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:11" (1/1) ... [2023-12-16 07:57:11,351 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:11" (1/1) ... [2023-12-16 07:57:11,449 INFO L138 Inliner]: procedures = 38, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5066 [2023-12-16 07:57:11,450 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:57:11,450 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:57:11,450 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:57:11,450 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:57:11,458 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:11" (1/1) ... [2023-12-16 07:57:11,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:11" (1/1) ... [2023-12-16 07:57:11,493 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:11" (1/1) ... [2023-12-16 07:57:11,553 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 07:57:11,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:11" (1/1) ... [2023-12-16 07:57:11,554 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:11" (1/1) ... [2023-12-16 07:57:11,616 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:11" (1/1) ... [2023-12-16 07:57:11,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:11" (1/1) ... [2023-12-16 07:57:11,655 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:11" (1/1) ... [2023-12-16 07:57:11,669 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:11" (1/1) ... [2023-12-16 07:57:11,705 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:57:11,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:57:11,706 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:57:11,706 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:57:11,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:11" (1/1) ... [2023-12-16 07:57:11,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:57:11,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:57:11,810 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 07:57:11,867 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 07:57:11,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:57:11,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:57:11,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:57:11,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:57:12,010 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:57:12,017 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:57:38,237 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:57:38,276 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:57:38,276 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 07:57:38,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:57:38 BoogieIcfgContainer [2023-12-16 07:57:38,276 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:57:38,278 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:57:38,278 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:57:38,280 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:57:38,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:57:09" (1/3) ... [2023-12-16 07:57:38,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@469826c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:57:38, skipping insertion in model container [2023-12-16 07:57:38,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:57:11" (2/3) ... [2023-12-16 07:57:38,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@469826c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:57:38, skipping insertion in model container [2023-12-16 07:57:38,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:57:38" (3/3) ... [2023-12-16 07:57:38,282 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2023-12-16 07:57:38,294 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:57:38,294 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 07:57:38,349 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:57:38,353 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;@295c86b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:57:38,354 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 07:57:38,360 INFO L276 IsEmpty]: Start isEmpty. Operand has 834 states, 831 states have (on average 1.9759326113116726) internal successors, (1642), 833 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states 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 07:57:38,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-16 07:57:38,367 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:57:38,368 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] [2023-12-16 07:57:38,368 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:57:38,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:57:38,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1603356568, now seen corresponding path program 1 times [2023-12-16 07:57:38,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:57:38,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [564363312] [2023-12-16 07:57:38,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:57:38,386 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 07:57:38,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:57:38,389 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 07:57:38,402 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 07:57:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:57:38,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 07:57:38,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:57:38,489 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 07:57:38,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:57:38,490 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:57:38,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [564363312] [2023-12-16 07:57:38,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [564363312] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:57:38,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:57:38,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:57:38,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335750308] [2023-12-16 07:57:38,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:57:38,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 07:57:38,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:57:38,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 07:57:38,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 07:57:38,524 INFO L87 Difference]: Start difference. First operand has 834 states, 831 states have (on average 1.9759326113116726) internal successors, (1642), 833 states have internal predecessors, (1642), 0 states have call successors, (0), 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 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states 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 07:57:38,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:57:38,604 INFO L93 Difference]: Finished difference Result 1632 states and 3215 transitions. [2023-12-16 07:57:38,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 07:57:38,607 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2023-12-16 07:57:38,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:57:38,618 INFO L225 Difference]: With dead ends: 1632 [2023-12-16 07:57:38,618 INFO L226 Difference]: Without dead ends: 830 [2023-12-16 07:57:38,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 07:57:38,629 INFO L413 NwaCegarLoop]: 1570 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:57:38,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1570 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:57:38,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2023-12-16 07:57:38,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2023-12-16 07:57:38,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 828 states have (on average 1.8973429951690821) internal successors, (1571), 829 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states 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 07:57:38,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1571 transitions. [2023-12-16 07:57:38,700 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1571 transitions. Word has length 21 [2023-12-16 07:57:38,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:57:38,701 INFO L495 AbstractCegarLoop]: Abstraction has 830 states and 1571 transitions. [2023-12-16 07:57:38,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states 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 07:57:38,701 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1571 transitions. [2023-12-16 07:57:38,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-16 07:57:38,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:57:38,702 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] [2023-12-16 07:57:38,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 07:57:38,905 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 07:57:38,906 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:57:38,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:57:38,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1103262826, now seen corresponding path program 1 times [2023-12-16 07:57:38,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:57:38,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491340905] [2023-12-16 07:57:38,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:57:38,908 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 07:57:38,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:57:38,918 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 07:57:38,921 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 07:57:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:57:38,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:57:38,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:57:39,022 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 07:57:39,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:57:39,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:57:39,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491340905] [2023-12-16 07:57:39,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491340905] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:57:39,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:57:39,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:57:39,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765265798] [2023-12-16 07:57:39,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:57:39,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:57:39,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:57:39,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:57:39,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:57:39,086 INFO L87 Difference]: Start difference. First operand 830 states and 1571 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states 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 07:57:39,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:57:39,158 INFO L93 Difference]: Finished difference Result 874 states and 1640 transitions. [2023-12-16 07:57:39,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:57:39,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2023-12-16 07:57:39,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:57:39,162 INFO L225 Difference]: With dead ends: 874 [2023-12-16 07:57:39,162 INFO L226 Difference]: Without dead ends: 830 [2023-12-16 07:57:39,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 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 07:57:39,164 INFO L413 NwaCegarLoop]: 1568 mSDtfsCounter, 0 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4669 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:57:39,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4669 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:57:39,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2023-12-16 07:57:39,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2023-12-16 07:57:39,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 828 states have (on average 1.8599033816425121) internal successors, (1540), 829 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states 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 07:57:39,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1540 transitions. [2023-12-16 07:57:39,190 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1540 transitions. Word has length 21 [2023-12-16 07:57:39,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:57:39,190 INFO L495 AbstractCegarLoop]: Abstraction has 830 states and 1540 transitions. [2023-12-16 07:57:39,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states 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 07:57:39,191 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1540 transitions. [2023-12-16 07:57:39,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-16 07:57:39,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:57:39,195 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 07:57:39,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 07:57:39,397 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 07:57:39,398 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:57:39,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:57:39,399 INFO L85 PathProgramCache]: Analyzing trace with hash 51546625, now seen corresponding path program 1 times [2023-12-16 07:57:39,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:57:39,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815671278] [2023-12-16 07:57:39,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:57:39,400 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:57:39,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:57:39,401 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 07:57:39,403 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 07:57:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:57:39,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:57:39,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:57:40,090 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 07:57:40,091 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:57:40,091 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:57:40,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815671278] [2023-12-16 07:57:40,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [815671278] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:57:40,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:57:40,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 07:57:40,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342919408] [2023-12-16 07:57:40,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:57:40,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 07:57:40,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:57:40,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 07:57:40,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-16 07:57:40,093 INFO L87 Difference]: Start difference. First operand 830 states and 1540 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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 07:57:40,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:57:40,324 INFO L93 Difference]: Finished difference Result 1076 states and 1936 transitions. [2023-12-16 07:57:40,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 07:57:40,325 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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 07:57:40,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:57:40,328 INFO L225 Difference]: With dead ends: 1076 [2023-12-16 07:57:40,328 INFO L226 Difference]: Without dead ends: 1035 [2023-12-16 07:57:40,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-16 07:57:40,330 INFO L413 NwaCegarLoop]: 1534 mSDtfsCounter, 3234 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3234 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:57:40,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3234 Valid, 1997 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:57:40,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2023-12-16 07:57:40,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 908. [2023-12-16 07:57:40,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 906 states have (on average 1.8399558498896247) internal successors, (1667), 907 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states 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 07:57:40,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1667 transitions. [2023-12-16 07:57:40,346 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1667 transitions. Word has length 51 [2023-12-16 07:57:40,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:57:40,346 INFO L495 AbstractCegarLoop]: Abstraction has 908 states and 1667 transitions. [2023-12-16 07:57:40,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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 07:57:40,347 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1667 transitions. [2023-12-16 07:57:40,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 07:57:40,347 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:57:40,348 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 07:57:40,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 07:57:40,551 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 07:57:40,552 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:57:40,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:57:40,553 INFO L85 PathProgramCache]: Analyzing trace with hash 2145916561, now seen corresponding path program 1 times [2023-12-16 07:57:40,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:57:40,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171858263] [2023-12-16 07:57:40,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:57:40,553 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 07:57:40,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:57:40,558 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 07:57:40,559 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 07:57:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:57:40,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:57:40,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:57:40,702 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 07:57:40,702 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:57:40,702 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:57:40,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171858263] [2023-12-16 07:57:40,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171858263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:57:40,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:57:40,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:57:40,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330095868] [2023-12-16 07:57:40,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:57:40,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:57:40,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:57:40,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:57:40,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:57:40,704 INFO L87 Difference]: Start difference. First operand 908 states and 1667 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 07:57:40,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:57:40,741 INFO L93 Difference]: Finished difference Result 1130 states and 2025 transitions. [2023-12-16 07:57:40,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:57:40,741 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 07:57:40,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:57:40,744 INFO L225 Difference]: With dead ends: 1130 [2023-12-16 07:57:40,744 INFO L226 Difference]: Without dead ends: 1011 [2023-12-16 07:57:40,745 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 07:57:40,745 INFO L413 NwaCegarLoop]: 1536 mSDtfsCounter, 1480 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 1596 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:57:40,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 1596 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:57:40,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2023-12-16 07:57:40,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 1009. [2023-12-16 07:57:40,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1007 states have (on average 1.8133068520357498) internal successors, (1826), 1008 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states 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 07:57:40,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1826 transitions. [2023-12-16 07:57:40,762 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1826 transitions. Word has length 53 [2023-12-16 07:57:40,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:57:40,762 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1826 transitions. [2023-12-16 07:57:40,762 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 07:57:40,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1826 transitions. [2023-12-16 07:57:40,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 07:57:40,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:57:40,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:57:40,782 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 (5)] Ended with exit code 0 [2023-12-16 07:57:40,966 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 07:57:40,966 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:57:40,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:57:40,967 INFO L85 PathProgramCache]: Analyzing trace with hash 2036322024, now seen corresponding path program 1 times [2023-12-16 07:57:40,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:57:40,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591263555] [2023-12-16 07:57:40,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:57:40,967 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 07:57:40,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:57:40,969 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 07:57:40,971 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 07:57:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:57:41,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:57:41,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:57:41,058 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 07:57:41,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:57:41,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:57:41,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591263555] [2023-12-16 07:57:41,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591263555] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:57:41,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:57:41,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:57:41,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427801171] [2023-12-16 07:57:41,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:57:41,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:57:41,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:57:41,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:57:41,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:57:41,059 INFO L87 Difference]: Start difference. First operand 1009 states and 1826 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:57:41,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:57:41,108 INFO L93 Difference]: Finished difference Result 1023 states and 1843 transitions. [2023-12-16 07:57:41,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:57:41,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-16 07:57:41,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:57:41,113 INFO L225 Difference]: With dead ends: 1023 [2023-12-16 07:57:41,113 INFO L226 Difference]: Without dead ends: 1021 [2023-12-16 07:57:41,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 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 07:57:41,114 INFO L413 NwaCegarLoop]: 1536 mSDtfsCounter, 1 mSDsluCounter, 3064 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4600 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:57:41,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4600 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:57:41,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2023-12-16 07:57:41,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1017. [2023-12-16 07:57:41,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 1015 states have (on average 1.805911330049261) internal successors, (1833), 1016 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states 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 07:57:41,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1833 transitions. [2023-12-16 07:57:41,130 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1833 transitions. Word has length 54 [2023-12-16 07:57:41,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:57:41,130 INFO L495 AbstractCegarLoop]: Abstraction has 1017 states and 1833 transitions. [2023-12-16 07:57:41,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:57:41,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1833 transitions. [2023-12-16 07:57:41,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 07:57:41,131 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:57:41,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:57:41,134 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 (6)] Ended with exit code 0 [2023-12-16 07:57:41,334 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 07:57:41,335 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:57:41,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:57:41,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1922958665, now seen corresponding path program 1 times [2023-12-16 07:57:41,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:57:41,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034866748] [2023-12-16 07:57:41,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:57:41,336 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 07:57:41,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:57:41,337 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 07:57:41,371 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 07:57:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:57:41,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:57:41,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:57:41,492 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 07:57:41,492 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:57:41,492 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:57:41,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034866748] [2023-12-16 07:57:41,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034866748] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:57:41,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:57:41,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:57:41,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667097519] [2023-12-16 07:57:41,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:57:41,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:57:41,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:57:41,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:57:41,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:57:41,494 INFO L87 Difference]: Start difference. First operand 1017 states and 1833 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 07:57:41,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:57:41,524 INFO L93 Difference]: Finished difference Result 1257 states and 2213 transitions. [2023-12-16 07:57:41,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:57:41,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-12-16 07:57:41,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:57:41,528 INFO L225 Difference]: With dead ends: 1257 [2023-12-16 07:57:41,528 INFO L226 Difference]: Without dead ends: 1132 [2023-12-16 07:57:41,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 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 07:57:41,529 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 1494 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1653 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 07:57:41,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1653 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:57:41,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2023-12-16 07:57:41,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1130. [2023-12-16 07:57:41,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 1128 states have (on average 1.7810283687943262) internal successors, (2009), 1129 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states 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 07:57:41,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 2009 transitions. [2023-12-16 07:57:41,547 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 2009 transitions. Word has length 55 [2023-12-16 07:57:41,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:57:41,547 INFO L495 AbstractCegarLoop]: Abstraction has 1130 states and 2009 transitions. [2023-12-16 07:57:41,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 07:57:41,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 2009 transitions. [2023-12-16 07:57:41,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 07:57:41,548 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:57:41,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:57:41,551 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 (7)] Ended with exit code 0 [2023-12-16 07:57:41,750 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 07:57:41,751 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:57:41,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:57:41,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1694319433, now seen corresponding path program 1 times [2023-12-16 07:57:41,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:57:41,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391638503] [2023-12-16 07:57:41,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:57:41,753 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 07:57:41,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:57:41,754 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 07:57:41,754 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 07:57:41,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:57:41,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:57:41,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:57:41,857 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 07:57:41,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:57:41,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:57:41,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [391638503] [2023-12-16 07:57:41,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [391638503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:57:41,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:57:41,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:57:41,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93392153] [2023-12-16 07:57:41,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:57:41,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:57:41,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:57:41,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:57:41,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:57:41,859 INFO L87 Difference]: Start difference. First operand 1130 states and 2009 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 07:57:41,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:57:41,892 INFO L93 Difference]: Finished difference Result 1772 states and 3012 transitions. [2023-12-16 07:57:41,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:57:41,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-12-16 07:57:41,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:57:41,896 INFO L225 Difference]: With dead ends: 1772 [2023-12-16 07:57:41,897 INFO L226 Difference]: Without dead ends: 1433 [2023-12-16 07:57:41,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 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 07:57:41,898 INFO L413 NwaCegarLoop]: 1579 mSDtfsCounter, 1490 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1653 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 07:57:41,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1653 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:57:41,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2023-12-16 07:57:41,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1431. [2023-12-16 07:57:41,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1429 states have (on average 1.72778166550035) internal successors, (2469), 1430 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states 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 07:57:41,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 2469 transitions. [2023-12-16 07:57:41,920 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 2469 transitions. Word has length 55 [2023-12-16 07:57:41,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:57:41,920 INFO L495 AbstractCegarLoop]: Abstraction has 1431 states and 2469 transitions. [2023-12-16 07:57:41,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 07:57:41,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 2469 transitions. [2023-12-16 07:57:41,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 07:57:41,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:57:41,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:57:41,941 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 07:57:42,124 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 07:57:42,124 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:57:42,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:57:42,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1068663369, now seen corresponding path program 1 times [2023-12-16 07:57:42,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:57:42,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904845838] [2023-12-16 07:57:42,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:57:42,125 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:57:42,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:57:42,126 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 07:57:42,168 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 07:57:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:57:42,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:57:42,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:57:42,237 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 07:57:42,237 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:57:42,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:57:42,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904845838] [2023-12-16 07:57:42,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904845838] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:57:42,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:57:42,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:57:42,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759220524] [2023-12-16 07:57:42,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:57:42,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:57:42,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:57:42,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:57:42,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:57:42,239 INFO L87 Difference]: Start difference. First operand 1431 states and 2469 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 07:57:42,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:57:42,273 INFO L93 Difference]: Finished difference Result 2639 states and 4329 transitions. [2023-12-16 07:57:42,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:57:42,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-12-16 07:57:42,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:57:42,279 INFO L225 Difference]: With dead ends: 2639 [2023-12-16 07:57:42,279 INFO L226 Difference]: Without dead ends: 1999 [2023-12-16 07:57:42,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 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 07:57:42,280 INFO L413 NwaCegarLoop]: 1577 mSDtfsCounter, 1488 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1655 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 07:57:42,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1655 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:57:42,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2023-12-16 07:57:42,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1997. [2023-12-16 07:57:42,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1997 states, 1995 states have (on average 1.66265664160401) internal successors, (3317), 1996 states have internal predecessors, (3317), 0 states have call successors, (0), 0 states 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 07:57:42,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1997 states to 1997 states and 3317 transitions. [2023-12-16 07:57:42,306 INFO L78 Accepts]: Start accepts. Automaton has 1997 states and 3317 transitions. Word has length 55 [2023-12-16 07:57:42,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:57:42,307 INFO L495 AbstractCegarLoop]: Abstraction has 1997 states and 3317 transitions. [2023-12-16 07:57:42,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 07:57:42,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1997 states and 3317 transitions. [2023-12-16 07:57:42,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 07:57:42,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:57:42,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:57:42,312 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 07:57:42,510 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 07:57:42,510 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:57:42,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:57:42,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1957396809, now seen corresponding path program 1 times [2023-12-16 07:57:42,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:57:42,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780891644] [2023-12-16 07:57:42,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:57:42,511 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 07:57:42,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:57:42,512 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 07:57:42,542 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 07:57:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:57:42,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:57:42,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:57:42,614 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 07:57:42,614 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:57:42,614 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:57:42,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780891644] [2023-12-16 07:57:42,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780891644] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:57:42,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:57:42,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:57:42,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422998890] [2023-12-16 07:57:42,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:57:42,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:57:42,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:57:42,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:57:42,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:57:42,615 INFO L87 Difference]: Start difference. First operand 1997 states and 3317 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 07:57:42,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:57:42,656 INFO L93 Difference]: Finished difference Result 4265 states and 6747 transitions. [2023-12-16 07:57:42,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:57:42,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-12-16 07:57:42,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:57:42,663 INFO L225 Difference]: With dead ends: 4265 [2023-12-16 07:57:42,663 INFO L226 Difference]: Without dead ends: 3059 [2023-12-16 07:57:42,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 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 07:57:42,665 INFO L413 NwaCegarLoop]: 1575 mSDtfsCounter, 1486 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1657 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 07:57:42,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1657 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:57:42,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2023-12-16 07:57:42,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 3057. [2023-12-16 07:57:42,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3057 states, 3055 states have (on average 1.5937806873977087) internal successors, (4869), 3056 states have internal predecessors, (4869), 0 states have call successors, (0), 0 states 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 07:57:42,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3057 states to 3057 states and 4869 transitions. [2023-12-16 07:57:42,706 INFO L78 Accepts]: Start accepts. Automaton has 3057 states and 4869 transitions. Word has length 55 [2023-12-16 07:57:42,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:57:42,706 INFO L495 AbstractCegarLoop]: Abstraction has 3057 states and 4869 transitions. [2023-12-16 07:57:42,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 07:57:42,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3057 states and 4869 transitions. [2023-12-16 07:57:42,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 07:57:42,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:57:42,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:57:42,722 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 07:57:42,910 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 07:57:42,910 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:57:42,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:57:42,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1654375497, now seen corresponding path program 1 times [2023-12-16 07:57:42,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:57:42,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408732518] [2023-12-16 07:57:42,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:57:42,911 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 07:57:42,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:57:42,912 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 07:57:42,944 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 07:57:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:57:42,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:57:42,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:57:43,013 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 07:57:43,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:57:43,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:57:43,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408732518] [2023-12-16 07:57:43,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408732518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:57:43,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:57:43,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:57:43,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876516485] [2023-12-16 07:57:43,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:57:43,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:57:43,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:57:43,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:57:43,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:57:43,014 INFO L87 Difference]: Start difference. First operand 3057 states and 4869 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 07:57:43,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:57:43,066 INFO L93 Difference]: Finished difference Result 7301 states and 11151 transitions. [2023-12-16 07:57:43,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:57:43,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-12-16 07:57:43,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:57:43,077 INFO L225 Difference]: With dead ends: 7301 [2023-12-16 07:57:43,077 INFO L226 Difference]: Without dead ends: 5035 [2023-12-16 07:57:43,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 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 07:57:43,079 INFO L413 NwaCegarLoop]: 1589 mSDtfsCounter, 1492 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1659 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 07:57:43,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1659 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:57:43,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5035 states. [2023-12-16 07:57:43,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5035 to 5033. [2023-12-16 07:57:43,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5033 states, 5031 states have (on average 1.5275293182269927) internal successors, (7685), 5032 states have internal predecessors, (7685), 0 states have call successors, (0), 0 states 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 07:57:43,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5033 states to 5033 states and 7685 transitions. [2023-12-16 07:57:43,203 INFO L78 Accepts]: Start accepts. Automaton has 5033 states and 7685 transitions. Word has length 55 [2023-12-16 07:57:43,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:57:43,203 INFO L495 AbstractCegarLoop]: Abstraction has 5033 states and 7685 transitions. [2023-12-16 07:57:43,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 07:57:43,203 INFO L276 IsEmpty]: Start isEmpty. Operand 5033 states and 7685 transitions. [2023-12-16 07:57:43,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 07:57:43,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:57:43,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:57:43,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 07:57:43,407 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 07:57:43,407 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:57:43,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:57:43,408 INFO L85 PathProgramCache]: Analyzing trace with hash 707266715, now seen corresponding path program 1 times [2023-12-16 07:57:43,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:57:43,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882337268] [2023-12-16 07:57:43,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:57:43,409 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 07:57:43,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:57:43,410 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 07:57:43,440 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 07:57:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:57:43,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:57:43,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:57:43,537 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 07:57:43,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:57:43,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:57:43,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882337268] [2023-12-16 07:57:43,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882337268] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:57:43,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:57:43,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:57:43,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38794985] [2023-12-16 07:57:43,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:57:43,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:57:43,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:57:43,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:57:43,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:57:43,538 INFO L87 Difference]: Start difference. First operand 5033 states and 7685 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:58:20,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:58:20,645 INFO L93 Difference]: Finished difference Result 6537 states and 10558 transitions. [2023-12-16 07:58:20,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:58:20,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-16 07:58:20,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:58:20,661 INFO L225 Difference]: With dead ends: 6537 [2023-12-16 07:58:20,661 INFO L226 Difference]: Without dead ends: 5784 [2023-12-16 07:58:20,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:58:20,663 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 835 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 2864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.9s IncrementalHoareTripleChecker+Time [2023-12-16 07:58:20,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 645 Invalid, 2864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 36.9s Time] [2023-12-16 07:58:20,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5784 states. [2023-12-16 07:58:20,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5784 to 5784. [2023-12-16 07:58:20,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5782 states have (on average 1.4859910065721205) internal successors, (8592), 5783 states have internal predecessors, (8592), 0 states have call successors, (0), 0 states 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 07:58:20,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 8592 transitions. [2023-12-16 07:58:20,763 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 8592 transitions. Word has length 62 [2023-12-16 07:58:20,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:58:20,763 INFO L495 AbstractCegarLoop]: Abstraction has 5784 states and 8592 transitions. [2023-12-16 07:58:20,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:58:20,763 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 8592 transitions. [2023-12-16 07:58:20,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-16 07:58:20,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:58:20,766 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:58:20,788 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 07:58:20,970 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 07:58:20,970 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:58:20,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:58:20,970 INFO L85 PathProgramCache]: Analyzing trace with hash 285878162, now seen corresponding path program 1 times [2023-12-16 07:58:20,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:58:20,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028251537] [2023-12-16 07:58:20,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:58:20,971 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:58:20,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:58:20,972 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 07:58:21,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 07:58:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:58:21,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 07:58:21,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:58:21,722 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:58:21,722 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 07:58:22,062 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:58:22,062 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:58:22,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028251537] [2023-12-16 07:58:22,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028251537] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 07:58:22,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 07:58:22,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-16 07:58:22,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018196516] [2023-12-16 07:58:22,063 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 07:58:22,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 07:58:22,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:58:22,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 07:58:22,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-16 07:58:22,064 INFO L87 Difference]: Start difference. First operand 5784 states and 8592 transitions. Second operand has 16 states, 16 states have (on average 8.25) internal successors, (132), 16 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 07:58:23,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-16 07:58:23,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=647, Unknown=0, NotChecked=0, Total=870 [2023-12-16 07:58:23,165 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 1060 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 07:58:23,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1060 Valid, 1172 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 07:58:23,166 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 07:58:23,178 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 07:58:23,194 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 07:58:23,194 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 (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:58:23,367 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 07:58:23,368 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (5784states) and FLOYD_HOARE automaton (currently 19 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (3033 states constructed, input type IntersectNwa). [2023-12-16 07:58:23,369 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 07:58:23,371 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:58:23,373 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:58:23,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:58:23 BoogieIcfgContainer [2023-12-16 07:58:23,374 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:58:23,374 INFO L158 Benchmark]: Toolchain (without parser) took 73490.97ms. Allocated memory was 239.1MB in the beginning and 614.5MB in the end (delta: 375.4MB). Free memory was 172.7MB in the beginning and 307.7MB in the end (delta: -135.0MB). Peak memory consumption was 241.9MB. Max. memory is 8.0GB. [2023-12-16 07:58:23,374 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:58:23,375 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1411.79ms. Allocated memory is still 239.1MB. Free memory was 172.7MB in the beginning and 173.3MB in the end (delta: -634.9kB). Peak memory consumption was 125.2MB. Max. memory is 8.0GB. [2023-12-16 07:58:23,375 INFO L158 Benchmark]: Boogie Procedure Inliner took 151.54ms. Allocated memory is still 239.1MB. Free memory was 173.3MB in the beginning and 137.7MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-16 07:58:23,375 INFO L158 Benchmark]: Boogie Preprocessor took 255.03ms. Allocated memory is still 239.1MB. Free memory was 137.7MB in the beginning and 98.9MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-12-16 07:58:23,375 INFO L158 Benchmark]: RCFGBuilder took 26570.13ms. Allocated memory was 239.1MB in the beginning and 511.7MB in the end (delta: 272.6MB). Free memory was 98.9MB in the beginning and 210.0MB in the end (delta: -111.1MB). Peak memory consumption was 162.5MB. Max. memory is 8.0GB. [2023-12-16 07:58:23,375 INFO L158 Benchmark]: TraceAbstraction took 45096.15ms. Allocated memory was 511.7MB in the beginning and 614.5MB in the end (delta: 102.8MB). Free memory was 209.0MB in the beginning and 307.7MB in the end (delta: -98.8MB). Peak memory consumption was 4.5MB. Max. memory is 8.0GB. [2023-12-16 07:58:23,376 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1411.79ms. Allocated memory is still 239.1MB. Free memory was 172.7MB in the beginning and 173.3MB in the end (delta: -634.9kB). Peak memory consumption was 125.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 151.54ms. Allocated memory is still 239.1MB. Free memory was 173.3MB in the beginning and 137.7MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 255.03ms. Allocated memory is still 239.1MB. Free memory was 137.7MB in the beginning and 98.9MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * RCFGBuilder took 26570.13ms. Allocated memory was 239.1MB in the beginning and 511.7MB in the end (delta: 272.6MB). Free memory was 98.9MB in the beginning and 210.0MB in the end (delta: -111.1MB). Peak memory consumption was 162.5MB. Max. memory is 8.0GB. * TraceAbstraction took 45096.15ms. Allocated memory was 511.7MB in the beginning and 614.5MB in the end (delta: 102.8MB). Free memory was 209.0MB in the beginning and 307.7MB in the end (delta: -98.8MB). Peak memory consumption was 4.5MB. 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: 436]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 436). Cancelled while NwaCegarLoop was constructing difference of abstraction (5784states) and FLOYD_HOARE automaton (currently 19 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (3033 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 640]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 640). Cancelled while NwaCegarLoop was constructing difference of abstraction (5784states) and FLOYD_HOARE automaton (currently 19 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (3033 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 834 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 45.1s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 39.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14060 SdHoareTripleChecker+Valid, 37.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14060 mSDsluCounter, 24526 SdHoareTripleChecker+Invalid, 30.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8064 mSDsCounter, 725 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2877 IncrementalHoareTripleChecker+Invalid, 3602 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 725 mSolverCounterUnsat, 16462 mSDtfsCounter, 2877 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 684 GetRequests, 640 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5784occurred in iteration=11, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 143 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 610 NumberOfCodeBlocks, 610 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 670 ConstructedInterpolants, 37 QuantifiedInterpolants, 3430 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1787 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 24/28 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