/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/Problem10_label59.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 09:05:36,692 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 09:05:36,729 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 09:05:36,732 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 09:05:36,732 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 09:05:36,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 09:05:36,745 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 09:05:36,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 09:05:36,746 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 09:05:36,746 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 09:05:36,747 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 09:05:36,747 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 09:05:36,747 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 09:05:36,747 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 09:05:36,748 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 09:05:36,748 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 09:05:36,748 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 09:05:36,748 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 09:05:36,748 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 09:05:36,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 09:05:36,749 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 09:05:36,749 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 09:05:36,749 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 09:05:36,750 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 09:05:36,750 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 09:05:36,750 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 09:05:36,750 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 09:05:36,750 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 09:05:36,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 09:05:36,751 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 09:05:36,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 09:05:36,751 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 09:05:36,751 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 09:05:36,751 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 09:05:36,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 09:05:36,752 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 09:05:36,752 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 09:05:36,752 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 09:05:36,752 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 09:05:36,752 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 09:05:36,752 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 09:05:36,753 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 09:05:36,753 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 09:05:36,753 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 09:05:36,753 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 09:05:36,753 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 09:05:36,753 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 09:05:36,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 09:05:36,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 09:05:36,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 09:05:36,909 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 09:05:36,909 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 09:05:36,911 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label59.c [2023-12-16 09:05:37,981 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 09:05:38,218 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 09:05:38,218 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label59.c [2023-12-16 09:05:38,237 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/557c974f3/35b8bd7c7815477894bde897479bb0e2/FLAG2eb125ead [2023-12-16 09:05:38,257 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/557c974f3/35b8bd7c7815477894bde897479bb0e2 [2023-12-16 09:05:38,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 09:05:38,260 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 09:05:38,261 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 09:05:38,261 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 09:05:38,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 09:05:38,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:05:38" (1/1) ... [2023-12-16 09:05:38,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29e5ddbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:05:38, skipping insertion in model container [2023-12-16 09:05:38,268 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:05:38" (1/1) ... [2023-12-16 09:05:38,317 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 09:05:38,497 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/Problem10_label59.c[7385,7398] [2023-12-16 09:05:38,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 09:05:38,640 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 09:05:38,663 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/Problem10_label59.c[7385,7398] [2023-12-16 09:05:38,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 09:05:38,736 INFO L206 MainTranslator]: Completed translation [2023-12-16 09:05:38,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:05:38 WrapperNode [2023-12-16 09:05:38,736 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 09:05:38,737 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 09:05:38,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 09:05:38,737 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 09:05:38,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:05:38" (1/1) ... [2023-12-16 09:05:38,756 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:05:38" (1/1) ... [2023-12-16 09:05:38,800 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 596 [2023-12-16 09:05:38,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 09:05:38,801 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 09:05:38,801 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 09:05:38,801 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 09:05:38,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:05:38" (1/1) ... [2023-12-16 09:05:38,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:05:38" (1/1) ... [2023-12-16 09:05:38,820 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:05:38" (1/1) ... [2023-12-16 09:05:38,836 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 09:05:38,836 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:05:38" (1/1) ... [2023-12-16 09:05:38,836 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:05:38" (1/1) ... [2023-12-16 09:05:38,852 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:05:38" (1/1) ... [2023-12-16 09:05:38,857 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:05:38" (1/1) ... [2023-12-16 09:05:38,862 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:05:38" (1/1) ... [2023-12-16 09:05:38,867 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:05:38" (1/1) ... [2023-12-16 09:05:38,873 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 09:05:38,874 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 09:05:38,874 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 09:05:38,874 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 09:05:38,875 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:05:38" (1/1) ... [2023-12-16 09:05:38,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 09:05:38,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 09:05:38,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 09:05:38,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 09:05:38,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 09:05:38,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 09:05:38,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 09:05:38,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 09:05:39,031 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 09:05:39,033 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 09:05:41,271 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 09:05:41,315 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 09:05:41,315 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 09:05:41,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:05:41 BoogieIcfgContainer [2023-12-16 09:05:41,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 09:05:41,332 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 09:05:41,333 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 09:05:41,335 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 09:05:41,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:05:38" (1/3) ... [2023-12-16 09:05:41,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c8a46e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:05:41, skipping insertion in model container [2023-12-16 09:05:41,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:05:38" (2/3) ... [2023-12-16 09:05:41,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c8a46e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:05:41, skipping insertion in model container [2023-12-16 09:05:41,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:05:41" (3/3) ... [2023-12-16 09:05:41,338 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label59.c [2023-12-16 09:05:41,350 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 09:05:41,350 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 09:05:41,400 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 09:05:41,404 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;@5b863565, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 09:05:41,405 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 09:05:41,408 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 142 states have (on average 1.9859154929577465) internal successors, (282), 143 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:05:41,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 09:05:41,414 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:05:41,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:05:41,415 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:05:41,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:05:41,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1143630123, now seen corresponding path program 1 times [2023-12-16 09:05:41,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:05:41,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [998789961] [2023-12-16 09:05:41,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:05:41,429 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:05:41,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:05:41,431 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:05:41,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 09:05:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:05:41,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 09:05:41,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:05:41,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:05:41,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:05:41,545 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:05:41,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [998789961] [2023-12-16 09:05:41,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [998789961] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:05:41,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:05:41,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:05:41,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053340950] [2023-12-16 09:05:41,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:05:41,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 09:05:41,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:05:41,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 09:05:41,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 09:05:41,580 INFO L87 Difference]: Start difference. First operand has 144 states, 142 states have (on average 1.9859154929577465) internal successors, (282), 143 states have internal predecessors, (282), 0 states have call successors, (0), 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 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:05:41,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:05:41,621 INFO L93 Difference]: Finished difference Result 287 states and 563 transitions. [2023-12-16 09:05:41,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 09:05:41,626 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2023-12-16 09:05:41,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:05:41,633 INFO L225 Difference]: With dead ends: 287 [2023-12-16 09:05:41,633 INFO L226 Difference]: Without dead ends: 142 [2023-12-16 09:05:41,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 09:05:41,637 INFO L413 NwaCegarLoop]: 217 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, 217 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 [2023-12-16 09:05:41,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 217 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 09:05:41,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-16 09:05:41,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-12-16 09:05:41,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.5390070921985815) internal successors, (217), 141 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:05:41,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 217 transitions. [2023-12-16 09:05:41,674 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 217 transitions. Word has length 64 [2023-12-16 09:05:41,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:05:41,675 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 217 transitions. [2023-12-16 09:05:41,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:05:41,675 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 217 transitions. [2023-12-16 09:05:41,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 09:05:41,676 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:05:41,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:05:41,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 09:05:41,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:05:41,880 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:05:41,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:05:41,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1483752594, now seen corresponding path program 1 times [2023-12-16 09:05:41,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:05:41,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450516609] [2023-12-16 09:05:41,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:05:41,881 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:05:41,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:05:41,882 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:05:41,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 09:05:41,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:05:41,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:05:41,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:05:42,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:05:42,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:05:42,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:05:42,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1450516609] [2023-12-16 09:05:42,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1450516609] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:05:42,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:05:42,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:05:42,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175451900] [2023-12-16 09:05:42,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:05:42,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:05:42,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:05:42,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:05:42,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:05:42,067 INFO L87 Difference]: Start difference. First operand 142 states and 217 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:05:44,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:05:44,570 INFO L93 Difference]: Finished difference Result 422 states and 648 transitions. [2023-12-16 09:05:44,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:05:44,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2023-12-16 09:05:44,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:05:44,572 INFO L225 Difference]: With dead ends: 422 [2023-12-16 09:05:44,572 INFO L226 Difference]: Without dead ends: 281 [2023-12-16 09:05:44,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:05:44,573 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 79 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 09:05:44,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 50 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 09:05:44,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-12-16 09:05:44,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2023-12-16 09:05:44,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 1.3964285714285714) internal successors, (391), 280 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:05:44,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 391 transitions. [2023-12-16 09:05:44,585 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 391 transitions. Word has length 64 [2023-12-16 09:05:44,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:05:44,585 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 391 transitions. [2023-12-16 09:05:44,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:05:44,586 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 391 transitions. [2023-12-16 09:05:44,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 09:05:44,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:05:44,587 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:05:44,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 09:05:44,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:05:44,795 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:05:44,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:05:44,796 INFO L85 PathProgramCache]: Analyzing trace with hash -572430815, now seen corresponding path program 1 times [2023-12-16 09:05:44,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:05:44,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [5433010] [2023-12-16 09:05:44,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:05:44,797 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:05:44,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:05:44,798 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:05:44,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 09:05:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:05:44,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:05:44,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:05:45,005 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:05:45,005 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:05:45,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:05:45,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [5433010] [2023-12-16 09:05:45,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [5433010] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:05:45,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:05:45,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 09:05:45,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790147598] [2023-12-16 09:05:45,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:05:45,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:05:45,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:05:45,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:05:45,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:05:45,020 INFO L87 Difference]: Start difference. First operand 281 states and 391 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:05:47,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:05:47,863 INFO L93 Difference]: Finished difference Result 561 states and 822 transitions. [2023-12-16 09:05:47,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:05:47,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2023-12-16 09:05:47,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:05:47,867 INFO L225 Difference]: With dead ends: 561 [2023-12-16 09:05:47,868 INFO L226 Difference]: Without dead ends: 420 [2023-12-16 09:05:47,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:05:47,869 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 77 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 09:05:47,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 217 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 09:05:47,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2023-12-16 09:05:47,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2023-12-16 09:05:47,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 419 states have (on average 1.2887828162291168) internal successors, (540), 419 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:05:47,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 540 transitions. [2023-12-16 09:05:47,882 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 540 transitions. Word has length 130 [2023-12-16 09:05:47,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:05:47,883 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 540 transitions. [2023-12-16 09:05:47,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:05:47,883 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 540 transitions. [2023-12-16 09:05:47,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-16 09:05:47,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:05:47,885 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:05:47,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 09:05:48,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:05:48,088 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:05:48,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:05:48,089 INFO L85 PathProgramCache]: Analyzing trace with hash -2090641493, now seen corresponding path program 1 times [2023-12-16 09:05:48,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:05:48,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217351801] [2023-12-16 09:05:48,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:05:48,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:05:48,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:05:48,091 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:05:48,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 09:05:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:05:48,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:05:48,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:05:48,261 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:05:48,261 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:05:48,261 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:05:48,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217351801] [2023-12-16 09:05:48,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217351801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:05:48,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:05:48,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:05:48,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587273496] [2023-12-16 09:05:48,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:05:48,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:05:48,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:05:48,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:05:48,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:05:48,263 INFO L87 Difference]: Start difference. First operand 420 states and 540 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:05:51,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:05:51,121 INFO L93 Difference]: Finished difference Result 978 states and 1294 transitions. [2023-12-16 09:05:51,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:05:51,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2023-12-16 09:05:51,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:05:51,135 INFO L225 Difference]: With dead ends: 978 [2023-12-16 09:05:51,135 INFO L226 Difference]: Without dead ends: 559 [2023-12-16 09:05:51,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:05:51,142 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 76 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 09:05:51,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 74 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 09:05:51,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-12-16 09:05:51,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2023-12-16 09:05:51,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.2096774193548387) internal successors, (675), 558 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:05:51,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 675 transitions. [2023-12-16 09:05:51,177 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 675 transitions. Word has length 134 [2023-12-16 09:05:51,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:05:51,177 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 675 transitions. [2023-12-16 09:05:51,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:05:51,177 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 675 transitions. [2023-12-16 09:05:51,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 09:05:51,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:05:51,179 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:05:51,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 09:05:51,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:05:51,387 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:05:51,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:05:51,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1881978155, now seen corresponding path program 1 times [2023-12-16 09:05:51,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:05:51,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151140112] [2023-12-16 09:05:51,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:05:51,389 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:05:51,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:05:51,390 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:05:51,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 09:05:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:05:51,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 09:05:51,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:05:51,880 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:05:51,881 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 09:05:54,378 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:05:54,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:05:54,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151140112] [2023-12-16 09:05:54,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151140112] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 09:05:54,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 09:05:54,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 09:05:54,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462701749] [2023-12-16 09:05:54,379 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 09:05:54,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 09:05:54,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:05:54,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 09:05:54,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 09:05:54,380 INFO L87 Difference]: Start difference. First operand 559 states and 675 transitions. Second operand has 7 states, 7 states have (on average 33.285714285714285) internal successors, (233), 6 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:06:25,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:06:25,929 INFO L93 Difference]: Finished difference Result 1713 states and 2193 transitions. [2023-12-16 09:06:25,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 09:06:25,932 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.285714285714285) internal successors, (233), 6 states have internal predecessors, (233), 0 states have call successors, (0), 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 139 [2023-12-16 09:06:25,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:06:25,935 INFO L225 Difference]: With dead ends: 1713 [2023-12-16 09:06:25,935 INFO L226 Difference]: Without dead ends: 978 [2023-12-16 09:06:25,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-16 09:06:25,937 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 761 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1459 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 1459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2023-12-16 09:06:25,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 44 Invalid, 1753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 1459 Invalid, 0 Unknown, 0 Unchecked, 31.4s Time] [2023-12-16 09:06:25,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2023-12-16 09:06:25,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 559. [2023-12-16 09:06:25,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.2043010752688172) internal successors, (672), 558 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:06:25,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 672 transitions. [2023-12-16 09:06:25,949 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 672 transitions. Word has length 139 [2023-12-16 09:06:25,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:06:25,949 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 672 transitions. [2023-12-16 09:06:25,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.285714285714285) internal successors, (233), 6 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:06:25,950 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 672 transitions. [2023-12-16 09:06:25,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 09:06:25,951 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:06:25,951 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 09:06:25,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-16 09:06:26,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:06:26,154 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:06:26,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:06:26,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1100118903, now seen corresponding path program 1 times [2023-12-16 09:06:26,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:06:26,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [228379325] [2023-12-16 09:06:26,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:06:26,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:06:26,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:06:26,157 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:06:26,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 09:06:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:06:26,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:06:26,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:06:26,303 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:06:26,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:06:26,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:06:26,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [228379325] [2023-12-16 09:06:26,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [228379325] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:06:26,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:06:26,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 09:06:26,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421873730] [2023-12-16 09:06:26,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:06:26,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:06:26,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:06:26,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:06:26,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:06:26,305 INFO L87 Difference]: Start difference. First operand 559 states and 672 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:06:28,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:06:28,798 INFO L93 Difference]: Finished difference Result 1256 states and 1568 transitions. [2023-12-16 09:06:28,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:06:28,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2023-12-16 09:06:28,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:06:28,801 INFO L225 Difference]: With dead ends: 1256 [2023-12-16 09:06:28,801 INFO L226 Difference]: Without dead ends: 837 [2023-12-16 09:06:28,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:06:28,802 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 77 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 09:06:28,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 217 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 09:06:28,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2023-12-16 09:06:28,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 837. [2023-12-16 09:06:28,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 836 states have (on average 1.1782296650717703) internal successors, (985), 836 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:06:28,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 985 transitions. [2023-12-16 09:06:28,812 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 985 transitions. Word has length 151 [2023-12-16 09:06:28,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:06:28,812 INFO L495 AbstractCegarLoop]: Abstraction has 837 states and 985 transitions. [2023-12-16 09:06:28,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:06:28,812 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 985 transitions. [2023-12-16 09:06:28,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 09:06:28,814 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:06:28,814 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 09:06:28,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-16 09:06:29,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:06:29,017 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:06:29,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:06:29,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1494657965, now seen corresponding path program 1 times [2023-12-16 09:06:29,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:06:29,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361724932] [2023-12-16 09:06:29,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:06:29,018 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:06:29,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:06:29,019 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:06:29,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 09:06:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:06:29,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:06:29,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:06:29,175 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:06:29,176 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:06:29,176 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:06:29,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361724932] [2023-12-16 09:06:29,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361724932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:06:29,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:06:29,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:06:29,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070722893] [2023-12-16 09:06:29,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:06:29,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:06:29,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:06:29,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:06:29,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:06:29,177 INFO L87 Difference]: Start difference. First operand 837 states and 985 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:06:31,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:06:31,948 INFO L93 Difference]: Finished difference Result 1951 states and 2343 transitions. [2023-12-16 09:06:31,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:06:31,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2023-12-16 09:06:31,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:06:31,953 INFO L225 Difference]: With dead ends: 1951 [2023-12-16 09:06:31,953 INFO L226 Difference]: Without dead ends: 1254 [2023-12-16 09:06:31,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:06:31,954 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 87 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 09:06:31,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 32 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 09:06:31,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2023-12-16 09:06:31,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1115. [2023-12-16 09:06:31,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 1114 states have (on average 1.1831238779174147) internal successors, (1318), 1114 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:06:31,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1318 transitions. [2023-12-16 09:06:31,970 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1318 transitions. Word has length 155 [2023-12-16 09:06:31,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:06:31,970 INFO L495 AbstractCegarLoop]: Abstraction has 1115 states and 1318 transitions. [2023-12-16 09:06:31,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:06:31,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1318 transitions. [2023-12-16 09:06:31,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-16 09:06:31,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:06:31,972 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 09:06:31,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 09:06:32,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:06:32,177 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:06:32,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:06:32,178 INFO L85 PathProgramCache]: Analyzing trace with hash -168103099, now seen corresponding path program 1 times [2023-12-16 09:06:32,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:06:32,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276761978] [2023-12-16 09:06:32,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:06:32,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:06:32,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:06:32,180 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:06:32,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 09:06:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:06:32,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 09:06:32,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:06:32,475 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:06:32,475 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 09:06:41,301 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:06:41,302 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:06:41,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276761978] [2023-12-16 09:06:41,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276761978] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 09:06:41,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 09:06:41,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-16 09:06:41,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322733155] [2023-12-16 09:06:41,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:06:41,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 09:06:41,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:06:41,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 09:06:41,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 09:06:41,303 INFO L87 Difference]: Start difference. First operand 1115 states and 1318 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 09:06:54,989 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 09:06:55,029 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 (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 09:06:55,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 09:06:55,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 09:06:55,132 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 115 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2023-12-16 09:06:55,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 9 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2023-12-16 09:06:55,133 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 09:06:55,149 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 (9)] Ended with exit code 0 [2023-12-16 09:06:55,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:06:55,335 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (1115states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (731 states constructed, input type IntersectNwa). [2023-12-16 09:06:55,338 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:06:55,343 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 09:06:55,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 09:06:55 BoogieIcfgContainer [2023-12-16 09:06:55,347 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 09:06:55,348 INFO L158 Benchmark]: Toolchain (without parser) took 77087.75ms. Allocated memory was 222.3MB in the beginning and 267.4MB in the end (delta: 45.1MB). Free memory was 176.9MB in the beginning and 146.1MB in the end (delta: 30.8MB). Peak memory consumption was 77.0MB. Max. memory is 8.0GB. [2023-12-16 09:06:55,348 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 184.5MB. Free memory is still 132.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 09:06:55,348 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.26ms. Allocated memory is still 222.3MB. Free memory was 176.9MB in the beginning and 144.9MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-16 09:06:55,348 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.13ms. Allocated memory is still 222.3MB. Free memory was 144.9MB in the beginning and 139.7MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 09:06:55,348 INFO L158 Benchmark]: Boogie Preprocessor took 73.03ms. Allocated memory is still 222.3MB. Free memory was 139.7MB in the beginning and 133.9MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 09:06:55,349 INFO L158 Benchmark]: RCFGBuilder took 2441.68ms. Allocated memory is still 222.3MB. Free memory was 133.9MB in the beginning and 101.7MB in the end (delta: 32.2MB). Peak memory consumption was 32.7MB. Max. memory is 8.0GB. [2023-12-16 09:06:55,349 INFO L158 Benchmark]: TraceAbstraction took 74014.73ms. Allocated memory was 222.3MB in the beginning and 267.4MB in the end (delta: 45.1MB). Free memory was 183.8MB in the beginning and 146.1MB in the end (delta: 37.8MB). Peak memory consumption was 82.8MB. Max. memory is 8.0GB. [2023-12-16 09:06:55,350 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 184.5MB. Free memory is still 132.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 475.26ms. Allocated memory is still 222.3MB. Free memory was 176.9MB in the beginning and 144.9MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.13ms. Allocated memory is still 222.3MB. Free memory was 144.9MB in the beginning and 139.7MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 73.03ms. Allocated memory is still 222.3MB. Free memory was 139.7MB in the beginning and 133.9MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2441.68ms. Allocated memory is still 222.3MB. Free memory was 133.9MB in the beginning and 101.7MB in the end (delta: 32.2MB). Peak memory consumption was 32.7MB. Max. memory is 8.0GB. * TraceAbstraction took 74014.73ms. Allocated memory was 222.3MB in the beginning and 267.4MB in the end (delta: 45.1MB). Free memory was 183.8MB in the beginning and 146.1MB in the end (delta: 37.8MB). Peak memory consumption was 82.8MB. 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: 209]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 209). Cancelled while NwaCegarLoop was constructing difference of abstraction (1115states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (731 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 144 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 74.0s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 59.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1272 SdHoareTripleChecker+Valid, 58.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1272 mSDsluCounter, 860 SdHoareTripleChecker+Invalid, 52.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 650 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3603 IncrementalHoareTripleChecker+Invalid, 4253 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 650 mSolverCounterUnsat, 805 mSDtfsCounter, 3603 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1318 GetRequests, 1302 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1115occurred in iteration=7, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 558 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 12.6s InterpolantComputationTime, 1012 NumberOfCodeBlocks, 1012 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1316 ConstructedInterpolants, 0 QuantifiedInterpolants, 5393 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1297 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 328/496 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