/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label14.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 11:12:55,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 11:12:55,880 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 11:12:55,885 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 11:12:55,886 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 11:12:55,906 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 11:12:55,906 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 11:12:55,907 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 11:12:55,907 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 11:12:55,910 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 11:12:55,910 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 11:12:55,910 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 11:12:55,911 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 11:12:55,912 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 11:12:55,912 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 11:12:55,912 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 11:12:55,912 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 11:12:55,913 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 11:12:55,913 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 11:12:55,913 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 11:12:55,913 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 11:12:55,913 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 11:12:55,913 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 11:12:55,914 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 11:12:55,914 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 11:12:55,914 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 11:12:55,914 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 11:12:55,914 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 11:12:55,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 11:12:55,914 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 11:12:55,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 11:12:55,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 11:12:55,915 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 11:12:55,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 11:12:55,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 11:12:55,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 11:12:55,916 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 11:12:55,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 11:12:55,916 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 11:12:55,916 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 11:12:55,916 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 11:12:55,917 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 11:12:55,917 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 11:12:55,917 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 11:12:55,917 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 11:12:55,917 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 11:12:55,917 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 11:12:56,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 11:12:56,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 11:12:56,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 11:12:56,143 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 11:12:56,144 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 11:12:56,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label14.c [2023-12-22 11:12:57,058 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 11:12:57,359 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 11:12:57,360 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label14.c [2023-12-22 11:12:57,403 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6af21c35e/011c1d30d0ec448793976e36bbb64480/FLAG5dcfb2f6f [2023-12-22 11:12:57,418 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6af21c35e/011c1d30d0ec448793976e36bbb64480 [2023-12-22 11:12:57,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 11:12:57,420 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 11:12:57,422 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 11:12:57,422 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 11:12:57,425 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 11:12:57,426 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:12:57" (1/1) ... [2023-12-22 11:12:57,427 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58be4646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:12:57, skipping insertion in model container [2023-12-22 11:12:57,427 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:12:57" (1/1) ... [2023-12-22 11:12:57,532 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 11:12:57,765 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label14.c[5911,5924] [2023-12-22 11:12:58,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 11:12:58,470 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 11:12:58,487 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label14.c[5911,5924] [2023-12-22 11:12:58,870 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 11:12:58,887 INFO L206 MainTranslator]: Completed translation [2023-12-22 11:12:58,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:12:58 WrapperNode [2023-12-22 11:12:58,888 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 11:12:58,889 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 11:12:58,889 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 11:12:58,889 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 11:12:58,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:12:58" (1/1) ... [2023-12-22 11:12:58,948 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:12:58" (1/1) ... [2023-12-22 11:12:59,090 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5582 [2023-12-22 11:12:59,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 11:12:59,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 11:12:59,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 11:12:59,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 11:12:59,098 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:12:58" (1/1) ... [2023-12-22 11:12:59,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:12:58" (1/1) ... [2023-12-22 11:12:59,122 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:12:58" (1/1) ... [2023-12-22 11:12:59,192 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 11:12:59,192 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:12:58" (1/1) ... [2023-12-22 11:12:59,193 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:12:58" (1/1) ... [2023-12-22 11:12:59,269 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:12:58" (1/1) ... [2023-12-22 11:12:59,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:12:58" (1/1) ... [2023-12-22 11:12:59,312 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:12:58" (1/1) ... [2023-12-22 11:12:59,396 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:12:58" (1/1) ... [2023-12-22 11:12:59,416 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 11:12:59,417 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 11:12:59,417 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 11:12:59,417 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 11:12:59,418 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:12:58" (1/1) ... [2023-12-22 11:12:59,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 11:12:59,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 11:12:59,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 11:12:59,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 11:12:59,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 11:12:59,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 11:12:59,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 11:12:59,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 11:12:59,509 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 11:12:59,510 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 11:13:39,555 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 11:13:39,602 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 11:13:39,602 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 11:13:39,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:13:39 BoogieIcfgContainer [2023-12-22 11:13:39,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 11:13:39,604 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 11:13:39,604 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 11:13:39,606 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 11:13:39,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:12:57" (1/3) ... [2023-12-22 11:13:39,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b3a5ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:13:39, skipping insertion in model container [2023-12-22 11:13:39,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:12:58" (2/3) ... [2023-12-22 11:13:39,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b3a5ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:13:39, skipping insertion in model container [2023-12-22 11:13:39,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:13:39" (3/3) ... [2023-12-22 11:13:39,607 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label14.c [2023-12-22 11:13:39,618 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 11:13:39,618 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 11:13:39,678 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 11:13:39,682 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;@4eaa55fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 11:13:39,682 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 11:13:39,690 INFO L276 IsEmpty]: Start isEmpty. Operand has 1036 states, 1034 states have (on average 1.877176015473888) internal successors, (1941), 1035 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:13:39,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-22 11:13:39,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:13:39,699 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] [2023-12-22 11:13:39,699 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:13:39,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:13:39,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1745199143, now seen corresponding path program 1 times [2023-12-22 11:13:39,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:13:39,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549309452] [2023-12-22 11:13:39,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:13:39,714 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:13:39,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:13:39,718 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 11:13:39,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 11:13:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:13:39,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 11:13:39,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:13:39,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:13:39,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:13:39,778 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:13:39,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549309452] [2023-12-22 11:13:39,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549309452] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:13:39,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:13:39,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:13:39,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442054412] [2023-12-22 11:13:39,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:13:39,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 11:13:39,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:13:39,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 11:13:39,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 11:13:39,846 INFO L87 Difference]: Start difference. First operand has 1036 states, 1034 states have (on average 1.877176015473888) internal successors, (1941), 1035 states have internal predecessors, (1941), 0 states have call successors, (0), 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 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:13:39,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:13:39,907 INFO L93 Difference]: Finished difference Result 2071 states and 3881 transitions. [2023-12-22 11:13:39,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 11:13:39,909 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2023-12-22 11:13:39,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:13:39,925 INFO L225 Difference]: With dead ends: 2071 [2023-12-22 11:13:39,925 INFO L226 Difference]: Without dead ends: 1034 [2023-12-22 11:13:39,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 11:13:39,932 INFO L413 NwaCegarLoop]: 1876 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 11:13:39,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1876 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 11:13:39,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2023-12-22 11:13:39,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1034. [2023-12-22 11:13:39,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1033 states have (on average 1.8160696999031947) internal successors, (1876), 1033 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:13:39,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1876 transitions. [2023-12-22 11:13:39,997 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1876 transitions. Word has length 40 [2023-12-22 11:13:39,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:13:39,997 INFO L495 AbstractCegarLoop]: Abstraction has 1034 states and 1876 transitions. [2023-12-22 11:13:39,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:13:39,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1876 transitions. [2023-12-22 11:13:39,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-22 11:13:39,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:13:39,998 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] [2023-12-22 11:13:40,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 11:13:40,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:13:40,202 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:13:40,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:13:40,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1416322832, now seen corresponding path program 1 times [2023-12-22 11:13:40,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:13:40,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281852154] [2023-12-22 11:13:40,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:13:40,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:13:40,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:13:40,204 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 11:13:40,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 11:13:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:13:40,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:13:40,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:13:40,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:13:40,333 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:13:40,333 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:13:40,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281852154] [2023-12-22 11:13:40,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [281852154] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:13:40,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:13:40,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:13:40,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783248469] [2023-12-22 11:13:40,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:13:40,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:13:40,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:13:40,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:13:40,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:13:40,340 INFO L87 Difference]: Start difference. First operand 1034 states and 1876 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:14:34,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:14:34,042 INFO L93 Difference]: Finished difference Result 2927 states and 5402 transitions. [2023-12-22 11:14:34,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:14:34,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2023-12-22 11:14:34,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:14:34,050 INFO L225 Difference]: With dead ends: 2927 [2023-12-22 11:14:34,050 INFO L226 Difference]: Without dead ends: 1894 [2023-12-22 11:14:34,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:14:34,052 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 841 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 3018 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 3379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 3018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.5s IncrementalHoareTripleChecker+Time [2023-12-22 11:14:34,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 737 Invalid, 3379 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [361 Valid, 3018 Invalid, 0 Unknown, 0 Unchecked, 53.5s Time] [2023-12-22 11:14:34,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2023-12-22 11:14:34,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1837. [2023-12-22 11:14:34,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1837 states, 1836 states have (on average 1.661764705882353) internal successors, (3051), 1836 states have internal predecessors, (3051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:14:34,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1837 states to 1837 states and 3051 transitions. [2023-12-22 11:14:34,098 INFO L78 Accepts]: Start accepts. Automaton has 1837 states and 3051 transitions. Word has length 40 [2023-12-22 11:14:34,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:14:34,098 INFO L495 AbstractCegarLoop]: Abstraction has 1837 states and 3051 transitions. [2023-12-22 11:14:34,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:14:34,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1837 states and 3051 transitions. [2023-12-22 11:14:34,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-22 11:14:34,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:14:34,102 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:14:34,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 11:14:34,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:14:34,303 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:14:34,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:14:34,304 INFO L85 PathProgramCache]: Analyzing trace with hash -2004168146, now seen corresponding path program 1 times [2023-12-22 11:14:34,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:14:34,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935017787] [2023-12-22 11:14:34,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:14:34,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:14:34,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:14:34,307 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 11:14:34,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 11:14:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:14:34,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:14:34,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:14:34,518 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:14:34,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:14:34,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:14:34,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935017787] [2023-12-22 11:14:34,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [935017787] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:14:34,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:14:34,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:14:34,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810157327] [2023-12-22 11:14:34,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:14:34,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:14:34,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:14:34,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:14:34,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:14:34,520 INFO L87 Difference]: Start difference. First operand 1837 states and 3051 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:15:35,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:15:35,235 INFO L93 Difference]: Finished difference Result 5266 states and 8798 transitions. [2023-12-22 11:15:35,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:15:35,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2023-12-22 11:15:35,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:15:35,256 INFO L225 Difference]: With dead ends: 5266 [2023-12-22 11:15:35,256 INFO L226 Difference]: Without dead ends: 3430 [2023-12-22 11:15:35,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:15:35,259 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 781 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 2710 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 3277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 2710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.5s IncrementalHoareTripleChecker+Time [2023-12-22 11:15:35,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 1213 Invalid, 3277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 2710 Invalid, 0 Unknown, 0 Unchecked, 60.5s Time] [2023-12-22 11:15:35,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3430 states. [2023-12-22 11:15:35,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3430 to 3425. [2023-12-22 11:15:35,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3425 states, 3424 states have (on average 1.4237733644859814) internal successors, (4875), 3424 states have internal predecessors, (4875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:15:35,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3425 states to 3425 states and 4875 transitions. [2023-12-22 11:15:35,305 INFO L78 Accepts]: Start accepts. Automaton has 3425 states and 4875 transitions. Word has length 106 [2023-12-22 11:15:35,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:15:35,306 INFO L495 AbstractCegarLoop]: Abstraction has 3425 states and 4875 transitions. [2023-12-22 11:15:35,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:15:35,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3425 states and 4875 transitions. [2023-12-22 11:15:35,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-22 11:15:35,312 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:15:35,312 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:15:35,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-22 11:15:35,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:15:35,514 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:15:35,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:15:35,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1311957297, now seen corresponding path program 1 times [2023-12-22 11:15:35,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:15:35,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937765854] [2023-12-22 11:15:35,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:15:35,516 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:15:35,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:15:35,517 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 11:15:35,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 11:15:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:15:35,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:15:35,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:15:35,732 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:15:35,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:15:35,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:15:35,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937765854] [2023-12-22 11:15:35,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937765854] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:15:35,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:15:35,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:15:35,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543281703] [2023-12-22 11:15:35,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:15:35,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:15:35,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:15:35,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:15:35,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:15:35,735 INFO L87 Difference]: Start difference. First operand 3425 states and 4875 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:16:37,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:16:37,395 INFO L93 Difference]: Finished difference Result 7672 states and 11092 transitions. [2023-12-22 11:16:37,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:16:37,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2023-12-22 11:16:37,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:16:37,419 INFO L225 Difference]: With dead ends: 7672 [2023-12-22 11:16:37,420 INFO L226 Difference]: Without dead ends: 4248 [2023-12-22 11:16:37,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:16:37,424 INFO L413 NwaCegarLoop]: 1115 mSDtfsCounter, 783 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 2553 mSolverCounterSat, 773 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 3326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 773 IncrementalHoareTripleChecker+Valid, 2553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.5s IncrementalHoareTripleChecker+Time [2023-12-22 11:16:37,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 1266 Invalid, 3326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [773 Valid, 2553 Invalid, 0 Unknown, 0 Unchecked, 61.5s Time] [2023-12-22 11:16:37,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4248 states. [2023-12-22 11:16:37,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4248 to 4233. [2023-12-22 11:16:37,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4233 states, 4232 states have (on average 1.2887523629489603) internal successors, (5454), 4232 states have internal predecessors, (5454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:16:37,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4233 states to 4233 states and 5454 transitions. [2023-12-22 11:16:37,496 INFO L78 Accepts]: Start accepts. Automaton has 4233 states and 5454 transitions. Word has length 113 [2023-12-22 11:16:37,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:16:37,498 INFO L495 AbstractCegarLoop]: Abstraction has 4233 states and 5454 transitions. [2023-12-22 11:16:37,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:16:37,498 INFO L276 IsEmpty]: Start isEmpty. Operand 4233 states and 5454 transitions. [2023-12-22 11:16:37,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-22 11:16:37,499 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:16:37,499 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:16:37,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 11:16:37,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:16:37,704 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:16:37,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:16:37,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2020156737, now seen corresponding path program 1 times [2023-12-22 11:16:37,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:16:37,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1639573425] [2023-12-22 11:16:37,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:16:37,706 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:16:37,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:16:37,707 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 11:16:37,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 11:16:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:16:37,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 11:16:37,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:16:38,861 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:16:38,861 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 11:16:41,125 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:16:41,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:16:41,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1639573425] [2023-12-22 11:16:41,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1639573425] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 11:16:41,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 11:16:41,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-12-22 11:16:41,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254886038] [2023-12-22 11:16:41,126 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 11:16:41,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 11:16:41,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:16:41,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 11:16:41,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 11:16:41,127 INFO L87 Difference]: Start difference. First operand 4233 states and 5454 transitions. Second operand has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 5 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:16:53,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:17:49,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:18:22,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:18:27,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:18:38,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:18:38,094 INFO L93 Difference]: Finished difference Result 14025 states and 19427 transitions. [2023-12-22 11:18:38,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 11:18:38,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 5 states have internal predecessors, (241), 0 states have call successors, (0), 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 145 [2023-12-22 11:18:38,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:18:38,119 INFO L225 Difference]: With dead ends: 14025 [2023-12-22 11:18:38,119 INFO L226 Difference]: Without dead ends: 10580 [2023-12-22 11:18:38,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-22 11:18:38,134 INFO L413 NwaCegarLoop]: 954 mSDtfsCounter, 5324 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 9741 mSolverCounterSat, 2351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 98.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5324 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 12092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2351 IncrementalHoareTripleChecker+Valid, 9741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 116.4s IncrementalHoareTripleChecker+Time [2023-12-22 11:18:38,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5324 Valid, 1211 Invalid, 12092 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2351 Valid, 9741 Invalid, 0 Unknown, 0 Unchecked, 116.4s Time] [2023-12-22 11:18:38,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10580 states. [2023-12-22 11:18:38,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10580 to 10560. [2023-12-22 11:18:38,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10560 states, 10559 states have (on average 1.205890709347476) internal successors, (12733), 10559 states have internal predecessors, (12733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:18:38,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10560 states to 10560 states and 12733 transitions. [2023-12-22 11:18:38,243 INFO L78 Accepts]: Start accepts. Automaton has 10560 states and 12733 transitions. Word has length 145 [2023-12-22 11:18:38,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:18:38,250 INFO L495 AbstractCegarLoop]: Abstraction has 10560 states and 12733 transitions. [2023-12-22 11:18:38,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 5 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:18:38,250 INFO L276 IsEmpty]: Start isEmpty. Operand 10560 states and 12733 transitions. [2023-12-22 11:18:38,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-22 11:18:38,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:18:38,253 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:18:38,259 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 [2023-12-22 11:18:38,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:18:38,457 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:18:38,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:18:38,457 INFO L85 PathProgramCache]: Analyzing trace with hash 494992221, now seen corresponding path program 1 times [2023-12-22 11:18:38,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:18:38,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368271963] [2023-12-22 11:18:38,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:18:38,459 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:18:38,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:18:38,460 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 11:18:38,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 11:18:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:18:38,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:18:38,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:18:38,792 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-22 11:18:38,792 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:18:38,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:18:38,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368271963] [2023-12-22 11:18:38,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368271963] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:18:38,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:18:38,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:18:38,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260436590] [2023-12-22 11:18:38,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:18:38,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:18:38,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:18:38,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:18:38,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:18:38,793 INFO L87 Difference]: Start difference. First operand 10560 states and 12733 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:19:19,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:19:19,394 INFO L93 Difference]: Finished difference Result 21117 states and 25929 transitions. [2023-12-22 11:19:19,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:19:19,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 201 [2023-12-22 11:19:19,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:19:19,418 INFO L225 Difference]: With dead ends: 21117 [2023-12-22 11:19:19,418 INFO L226 Difference]: Without dead ends: 11345 [2023-12-22 11:19:19,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:19:19,424 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 889 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 762 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 3071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 762 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.4s IncrementalHoareTripleChecker+Time [2023-12-22 11:19:19,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 1000 Invalid, 3071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [762 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 40.4s Time] [2023-12-22 11:19:19,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11345 states. [2023-12-22 11:19:19,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11345 to 11343. [2023-12-22 11:19:19,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11343 states, 11342 states have (on average 1.1230823487921002) internal successors, (12738), 11342 states have internal predecessors, (12738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:19:19,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11343 states to 11343 states and 12738 transitions. [2023-12-22 11:19:19,528 INFO L78 Accepts]: Start accepts. Automaton has 11343 states and 12738 transitions. Word has length 201 [2023-12-22 11:19:19,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:19:19,528 INFO L495 AbstractCegarLoop]: Abstraction has 11343 states and 12738 transitions. [2023-12-22 11:19:19,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:19:19,528 INFO L276 IsEmpty]: Start isEmpty. Operand 11343 states and 12738 transitions. [2023-12-22 11:19:19,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-12-22 11:19:19,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:19:19,530 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:19:19,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 11:19:19,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:19:19,740 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:19:19,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:19:19,741 INFO L85 PathProgramCache]: Analyzing trace with hash 438843400, now seen corresponding path program 1 times [2023-12-22 11:19:19,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:19:19,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529354423] [2023-12-22 11:19:19,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:19:19,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:19:19,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:19:19,743 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 11:19:19,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 11:19:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:19:19,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 11:19:19,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:19:20,140 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-22 11:19:20,141 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:19:20,141 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:19:20,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529354423] [2023-12-22 11:19:20,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529354423] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:19:20,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:19:20,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:19:20,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120799300] [2023-12-22 11:19:20,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:19:20,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:19:20,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:19:20,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:19:20,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:19:20,142 INFO L87 Difference]: Start difference. First operand 11343 states and 12738 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:19:59,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:19:59,143 INFO L93 Difference]: Finished difference Result 21898 states and 24678 transitions. [2023-12-22 11:19:59,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:19:59,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 0 states have call successors, (0), 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 202 [2023-12-22 11:19:59,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:19:59,174 INFO L225 Difference]: With dead ends: 21898 [2023-12-22 11:19:59,174 INFO L226 Difference]: Without dead ends: 11343 [2023-12-22 11:19:59,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:19:59,183 INFO L413 NwaCegarLoop]: 1083 mSDtfsCounter, 700 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.8s IncrementalHoareTripleChecker+Time [2023-12-22 11:19:59,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1212 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 38.8s Time] [2023-12-22 11:19:59,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11343 states. [2023-12-22 11:19:59,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11343 to 11343. [2023-12-22 11:19:59,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11343 states, 11342 states have (on average 1.1226415094339623) internal successors, (12733), 11342 states have internal predecessors, (12733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:19:59,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11343 states to 11343 states and 12733 transitions. [2023-12-22 11:19:59,279 INFO L78 Accepts]: Start accepts. Automaton has 11343 states and 12733 transitions. Word has length 202 [2023-12-22 11:19:59,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:19:59,279 INFO L495 AbstractCegarLoop]: Abstraction has 11343 states and 12733 transitions. [2023-12-22 11:19:59,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:19:59,279 INFO L276 IsEmpty]: Start isEmpty. Operand 11343 states and 12733 transitions. [2023-12-22 11:19:59,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-22 11:19:59,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:19:59,281 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:19:59,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-22 11:19:59,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:19:59,486 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:19:59,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:19:59,487 INFO L85 PathProgramCache]: Analyzing trace with hash 22225073, now seen corresponding path program 1 times [2023-12-22 11:19:59,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:19:59,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672346171] [2023-12-22 11:19:59,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:19:59,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:19:59,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:19:59,489 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 11:19:59,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 11:19:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:19:59,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:19:59,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:19:59,701 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:19:59,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:19:59,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:19:59,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672346171] [2023-12-22 11:19:59,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672346171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:19:59,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:19:59,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 11:19:59,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422817457] [2023-12-22 11:19:59,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:19:59,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:19:59,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:19:59,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:19:59,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:19:59,705 INFO L87 Difference]: Start difference. First operand 11343 states and 12733 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:20:53,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:20:53,289 INFO L93 Difference]: Finished difference Result 27439 states and 31209 transitions. [2023-12-22 11:20:53,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:20:53,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 209 [2023-12-22 11:20:53,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:20:53,320 INFO L225 Difference]: With dead ends: 27439 [2023-12-22 11:20:53,320 INFO L226 Difference]: Without dead ends: 16093 [2023-12-22 11:20:53,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:20:53,328 INFO L413 NwaCegarLoop]: 1718 mSDtfsCounter, 820 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 2511 mSolverCounterSat, 731 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 3242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 731 IncrementalHoareTripleChecker+Valid, 2511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.4s IncrementalHoareTripleChecker+Time [2023-12-22 11:20:53,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 1860 Invalid, 3242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [731 Valid, 2511 Invalid, 0 Unknown, 0 Unchecked, 53.4s Time] [2023-12-22 11:20:53,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16093 states. [2023-12-22 11:20:53,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16093 to 16072. [2023-12-22 11:20:53,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16072 states, 16071 states have (on average 1.1024827328728766) internal successors, (17718), 16071 states have internal predecessors, (17718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:20:53,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16072 states to 16072 states and 17718 transitions. [2023-12-22 11:20:53,499 INFO L78 Accepts]: Start accepts. Automaton has 16072 states and 17718 transitions. Word has length 209 [2023-12-22 11:20:53,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:20:53,499 INFO L495 AbstractCegarLoop]: Abstraction has 16072 states and 17718 transitions. [2023-12-22 11:20:53,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:20:53,500 INFO L276 IsEmpty]: Start isEmpty. Operand 16072 states and 17718 transitions. [2023-12-22 11:20:53,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-22 11:20:53,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:20:53,503 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:20:53,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-22 11:20:53,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:20:53,708 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:20:53,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:20:53,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1327576986, now seen corresponding path program 1 times [2023-12-22 11:20:53,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:20:53,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183531217] [2023-12-22 11:20:53,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:20:53,710 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:20:53,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:20:53,711 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 11:20:53,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 11:20:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:20:53,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 11:20:53,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:20:54,300 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 222 proven. 88 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-22 11:20:54,300 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 11:20:55,398 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 222 proven. 88 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-22 11:20:55,398 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:20:55,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183531217] [2023-12-22 11:20:55,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183531217] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 11:20:55,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 11:20:55,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-22 11:20:55,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000262386] [2023-12-22 11:20:55,399 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 11:20:55,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 11:20:55,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:20:55,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 11:20:55,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-22 11:20:55,400 INFO L87 Difference]: Start difference. First operand 16072 states and 17718 transitions. Second operand has 6 states, 6 states have (on average 74.16666666666667) internal successors, (445), 5 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 11:21:36,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:22:56,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:24:01,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:24:37,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:24:53,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:25:05,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:25:20,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:25:58,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:26:11,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:27:03,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-22 11:27:30,212 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 11:27:30,230 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 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 11:27:30,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 11:27:30,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 590 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-22 11:27:30,441 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 6052 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 7389 mSolverCounterSat, 2822 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 376.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6052 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 10211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2822 IncrementalHoareTripleChecker+Valid, 7389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 394.5s IncrementalHoareTripleChecker+Time [2023-12-22 11:27:30,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6052 Valid, 537 Invalid, 10211 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2822 Valid, 7389 Invalid, 0 Unknown, 0 Unchecked, 394.5s Time] [2023-12-22 11:27:30,442 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 11:27:30,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-22 11:27:30,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 11:27:30,649 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (16072states) and FLOYD_HOARE automaton (currently 7 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (30890 states constructed, input type IntersectNwa). [2023-12-22 11:27:30,652 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:27:30,654 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 11:27:30,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:27:30 BoogieIcfgContainer [2023-12-22 11:27:30,655 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 11:27:30,656 INFO L158 Benchmark]: Toolchain (without parser) took 873235.19ms. Allocated memory was 191.9MB in the beginning and 415.2MB in the end (delta: 223.3MB). Free memory was 137.6MB in the beginning and 188.3MB in the end (delta: -50.7MB). Peak memory consumption was 282.4MB. Max. memory is 8.0GB. [2023-12-22 11:27:30,656 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 191.9MB. Free memory is still 149.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 11:27:30,656 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1465.83ms. Allocated memory was 191.9MB in the beginning and 238.0MB in the end (delta: 46.1MB). Free memory was 137.6MB in the beginning and 100.1MB in the end (delta: 37.4MB). Peak memory consumption was 89.8MB. Max. memory is 8.0GB. [2023-12-22 11:27:30,656 INFO L158 Benchmark]: Boogie Procedure Inliner took 201.05ms. Allocated memory is still 238.0MB. Free memory was 100.1MB in the beginning and 143.4MB in the end (delta: -43.3MB). Peak memory consumption was 32.2MB. Max. memory is 8.0GB. [2023-12-22 11:27:30,656 INFO L158 Benchmark]: Boogie Preprocessor took 325.94ms. Allocated memory is still 238.0MB. Free memory was 143.4MB in the beginning and 139.2MB in the end (delta: 4.2MB). Peak memory consumption was 75.0MB. Max. memory is 8.0GB. [2023-12-22 11:27:30,656 INFO L158 Benchmark]: RCFGBuilder took 40185.45ms. Allocated memory was 238.0MB in the beginning and 415.2MB in the end (delta: 177.2MB). Free memory was 139.2MB in the beginning and 123.0MB in the end (delta: 16.3MB). Peak memory consumption was 215.5MB. Max. memory is 8.0GB. [2023-12-22 11:27:30,657 INFO L158 Benchmark]: TraceAbstraction took 831051.36ms. Allocated memory is still 415.2MB. Free memory was 122.5MB in the beginning and 188.3MB in the end (delta: -65.8MB). Peak memory consumption was 43.4MB. Max. memory is 8.0GB. [2023-12-22 11:27:30,658 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 191.9MB. Free memory is still 149.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1465.83ms. Allocated memory was 191.9MB in the beginning and 238.0MB in the end (delta: 46.1MB). Free memory was 137.6MB in the beginning and 100.1MB in the end (delta: 37.4MB). Peak memory consumption was 89.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 201.05ms. Allocated memory is still 238.0MB. Free memory was 100.1MB in the beginning and 143.4MB in the end (delta: -43.3MB). Peak memory consumption was 32.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 325.94ms. Allocated memory is still 238.0MB. Free memory was 143.4MB in the beginning and 139.2MB in the end (delta: 4.2MB). Peak memory consumption was 75.0MB. Max. memory is 8.0GB. * RCFGBuilder took 40185.45ms. Allocated memory was 238.0MB in the beginning and 415.2MB in the end (delta: 177.2MB). Free memory was 139.2MB in the beginning and 123.0MB in the end (delta: 16.3MB). Peak memory consumption was 215.5MB. Max. memory is 8.0GB. * TraceAbstraction took 831051.36ms. Allocated memory is still 415.2MB. Free memory was 122.5MB in the beginning and 188.3MB in the end (delta: -65.8MB). Peak memory consumption was 43.4MB. 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: 145]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 145). Cancelled while NwaCegarLoop was constructing difference of abstraction (16072states) and FLOYD_HOARE automaton (currently 7 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (30890 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1036 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 831.0s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 821.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16190 SdHoareTripleChecker+Valid, 819.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16190 mSDsluCounter, 10912 SdHoareTripleChecker+Invalid, 729.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1511 mSDsCounter, 8371 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32756 IncrementalHoareTripleChecker+Invalid, 41127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8371 mSolverCounterUnsat, 9401 mSDtfsCounter, 32756 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1791 GetRequests, 1772 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16072occurred in iteration=8, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 120 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 1354 NumberOfCodeBlocks, 1354 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1786 ConstructedInterpolants, 0 QuantifiedInterpolants, 10263 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1776 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 1037/1289 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