/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_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 09:04:35,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 09:04:35,864 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 09:04:35,871 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 09:04:35,871 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 09:04:35,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 09:04:35,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 09:04:35,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 09:04:35,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 09:04:35,901 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 09:04:35,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 09:04:35,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 09:04:35,902 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 09:04:35,903 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 09:04:35,903 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 09:04:35,904 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 09:04:35,904 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 09:04:35,904 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 09:04:35,904 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 09:04:35,904 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 09:04:35,904 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 09:04:35,905 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 09:04:35,905 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 09:04:35,905 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 09:04:35,905 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 09:04:35,905 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 09:04:35,905 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 09:04:35,905 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 09:04:35,905 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 09:04:35,906 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 09:04:35,906 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 09:04:35,906 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 09:04:35,907 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 09:04:35,907 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 09:04:35,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 09:04:35,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 09:04:35,907 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 09:04:35,907 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 09:04:35,907 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 09:04:35,907 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 09:04:35,907 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 09:04:35,908 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 09:04:35,908 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 09:04:35,908 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 09:04:35,908 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 09:04:35,908 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 09:04:35,908 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 09:04:36,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 09:04:36,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 09:04:36,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 09:04:36,112 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 09:04:36,113 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 09:04:36,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label45.c [2023-12-16 09:04:37,259 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 09:04:37,540 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 09:04:37,541 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label45.c [2023-12-16 09:04:37,568 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b3a3809a/5022ae302d5b4c959082c276f1e2d219/FLAG497d30d82 [2023-12-16 09:04:37,583 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b3a3809a/5022ae302d5b4c959082c276f1e2d219 [2023-12-16 09:04:37,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 09:04:37,586 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 09:04:37,589 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 09:04:37,589 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 09:04:37,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 09:04:37,592 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:04:37" (1/1) ... [2023-12-16 09:04:37,593 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f296546 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:37, skipping insertion in model container [2023-12-16 09:04:37,593 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:04:37" (1/1) ... [2023-12-16 09:04:37,641 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 09:04:37,809 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_label45.c[4437,4450] [2023-12-16 09:04:37,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 09:04:37,920 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 09:04:37,935 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_label45.c[4437,4450] [2023-12-16 09:04:38,019 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 09:04:38,046 INFO L206 MainTranslator]: Completed translation [2023-12-16 09:04:38,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:38 WrapperNode [2023-12-16 09:04:38,047 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 09:04:38,048 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 09:04:38,048 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 09:04:38,048 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 09:04:38,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:38" (1/1) ... [2023-12-16 09:04:38,093 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:38" (1/1) ... [2023-12-16 09:04:38,150 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 596 [2023-12-16 09:04:38,150 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 09:04:38,151 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 09:04:38,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 09:04:38,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 09:04:38,174 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:38" (1/1) ... [2023-12-16 09:04:38,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:38" (1/1) ... [2023-12-16 09:04:38,181 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:38" (1/1) ... [2023-12-16 09:04:38,194 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 09:04:38,194 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:38" (1/1) ... [2023-12-16 09:04:38,195 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:38" (1/1) ... [2023-12-16 09:04:38,232 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:38" (1/1) ... [2023-12-16 09:04:38,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:38" (1/1) ... [2023-12-16 09:04:38,240 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:38" (1/1) ... [2023-12-16 09:04:38,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:38" (1/1) ... [2023-12-16 09:04:38,260 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 09:04:38,261 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 09:04:38,261 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 09:04:38,261 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 09:04:38,262 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:38" (1/1) ... [2023-12-16 09:04:38,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 09:04:38,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 09:04:38,314 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 09:04:38,317 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 09:04:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 09:04:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 09:04:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 09:04:38,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 09:04:38,415 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 09:04:38,417 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 09:04:40,503 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 09:04:40,552 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 09:04:40,552 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 09:04:40,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:04:40 BoogieIcfgContainer [2023-12-16 09:04:40,553 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 09:04:40,555 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 09:04:40,555 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 09:04:40,557 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 09:04:40,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:04:37" (1/3) ... [2023-12-16 09:04:40,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1614ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:04:40, skipping insertion in model container [2023-12-16 09:04:40,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:38" (2/3) ... [2023-12-16 09:04:40,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1614ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:04:40, skipping insertion in model container [2023-12-16 09:04:40,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:04:40" (3/3) ... [2023-12-16 09:04:40,559 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label45.c [2023-12-16 09:04:40,572 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 09:04:40,572 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 09:04:40,619 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 09:04:40,624 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;@7c38704d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 09:04:40,624 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 09:04:40,629 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 09:04:40,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-16 09:04:40,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:04:40,637 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] [2023-12-16 09:04:40,637 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:04:40,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:04:40,643 INFO L85 PathProgramCache]: Analyzing trace with hash -369581778, now seen corresponding path program 1 times [2023-12-16 09:04:40,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:04:40,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395187663] [2023-12-16 09:04:40,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:04:40,658 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 09:04:40,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:04:40,663 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 09:04:40,680 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 09:04:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:04:40,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 09:04:40,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:04:40,838 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 09:04:40,839 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:04:40,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:04:40,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395187663] [2023-12-16 09:04:40,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1395187663] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:04:40,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:04:40,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:04:40,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256450366] [2023-12-16 09:04:40,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:04:40,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 09:04:40,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:04:40,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 09:04:40,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 09:04:40,915 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 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 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 09:04:40,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:04:40,955 INFO L93 Difference]: Finished difference Result 287 states and 563 transitions. [2023-12-16 09:04:40,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 09:04:40,957 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2023-12-16 09:04:40,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:04:40,965 INFO L225 Difference]: With dead ends: 287 [2023-12-16 09:04:40,965 INFO L226 Difference]: Without dead ends: 142 [2023-12-16 09:04:40,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 36 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 09:04:40,970 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 09:04:40,970 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 09:04:40,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-16 09:04:41,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-12-16 09:04:41,008 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 09:04:41,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 217 transitions. [2023-12-16 09:04:41,013 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 217 transitions. Word has length 37 [2023-12-16 09:04:41,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:04:41,014 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 217 transitions. [2023-12-16 09:04:41,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 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 09:04:41,014 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 217 transitions. [2023-12-16 09:04:41,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-16 09:04:41,015 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:04:41,015 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] [2023-12-16 09:04:41,022 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 09:04:41,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:04:41,221 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:04:41,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:04:41,221 INFO L85 PathProgramCache]: Analyzing trace with hash -343568939, now seen corresponding path program 1 times [2023-12-16 09:04:41,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:04:41,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825434969] [2023-12-16 09:04:41,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:04:41,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:04:41,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:04:41,223 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:04:41,225 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 09:04:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:04:41,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:04:41,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:04:41,326 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 09:04:41,326 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:04:41,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:04:41,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825434969] [2023-12-16 09:04:41,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825434969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:04:41,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:04:41,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:04:41,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900063805] [2023-12-16 09:04:41,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:04:41,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:04:41,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:04:41,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:04:41,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:04:41,329 INFO L87 Difference]: Start difference. First operand 142 states and 217 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 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 09:04:43,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:04:43,754 INFO L93 Difference]: Finished difference Result 422 states and 648 transitions. [2023-12-16 09:04:43,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:04:43,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2023-12-16 09:04:43,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:04:43,758 INFO L225 Difference]: With dead ends: 422 [2023-12-16 09:04:43,758 INFO L226 Difference]: Without dead ends: 281 [2023-12-16 09:04:43,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 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 09:04:43,760 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 109 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 09:04:43,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 65 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 09:04:43,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-12-16 09:04:43,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2023-12-16 09:04:43,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 1.3428571428571427) internal successors, (376), 280 states have internal predecessors, (376), 0 states have call successors, (0), 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 09:04:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 376 transitions. [2023-12-16 09:04:43,770 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 376 transitions. Word has length 37 [2023-12-16 09:04:43,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:04:43,770 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 376 transitions. [2023-12-16 09:04:43,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 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 09:04:43,770 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 376 transitions. [2023-12-16 09:04:43,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-16 09:04:43,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:04:43,784 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:43,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 09:04:44,000 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 09:04:44,001 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:04:44,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:04:44,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1008775743, now seen corresponding path program 1 times [2023-12-16 09:04:44,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:04:44,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010236766] [2023-12-16 09:04:44,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:04:44,003 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 09:04:44,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:04:44,009 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 09:04:44,010 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 09:04:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:04:44,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:04:44,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:04:44,167 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:04:44,167 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:04:44,167 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:04:44,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2010236766] [2023-12-16 09:04:44,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2010236766] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:04:44,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:04:44,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 09:04:44,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248543931] [2023-12-16 09:04:44,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:04:44,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:04:44,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:04:44,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:04:44,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:04:44,169 INFO L87 Difference]: Start difference. First operand 281 states and 376 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 09:04:46,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:04:46,734 INFO L93 Difference]: Finished difference Result 700 states and 966 transitions. [2023-12-16 09:04:46,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:04:46,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2023-12-16 09:04:46,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:04:46,736 INFO L225 Difference]: With dead ends: 700 [2023-12-16 09:04:46,736 INFO L226 Difference]: Without dead ends: 420 [2023-12-16 09:04:46,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 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 09:04:46,738 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 108 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 09:04:46,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 212 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 09:04:46,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2023-12-16 09:04:46,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2023-12-16 09:04:46,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 419 states have (on average 1.2529832935560858) internal successors, (525), 419 states have internal predecessors, (525), 0 states have call successors, (0), 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 09:04:46,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 525 transitions. [2023-12-16 09:04:46,752 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 525 transitions. Word has length 103 [2023-12-16 09:04:46,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:04:46,752 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 525 transitions. [2023-12-16 09:04:46,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 09:04:46,752 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 525 transitions. [2023-12-16 09:04:46,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 09:04:46,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:04:46,754 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:46,756 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 09:04:46,957 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 09:04:46,958 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:04:46,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:04:46,958 INFO L85 PathProgramCache]: Analyzing trace with hash -273060514, now seen corresponding path program 1 times [2023-12-16 09:04:46,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:04:46,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [404314592] [2023-12-16 09:04:46,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:04:46,959 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 09:04:46,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:04:46,960 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 09:04:46,964 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 09:04:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:04:47,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:04:47,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:04:47,166 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:04:47,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:04:47,169 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:04:47,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [404314592] [2023-12-16 09:04:47,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [404314592] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:04:47,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:04:47,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:04:47,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505971338] [2023-12-16 09:04:47,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:04:47,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:04:47,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:04:47,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:04:47,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:04:47,173 INFO L87 Difference]: Start difference. First operand 420 states and 525 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 09:04:49,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:04:49,203 INFO L93 Difference]: Finished difference Result 978 states and 1208 transitions. [2023-12-16 09:04:49,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:04:49,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2023-12-16 09:04:49,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:04:49,205 INFO L225 Difference]: With dead ends: 978 [2023-12-16 09:04:49,205 INFO L226 Difference]: Without dead ends: 559 [2023-12-16 09:04:49,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 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 09:04:49,207 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 68 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 09:04:49,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 75 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 09:04:49,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-12-16 09:04:49,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2023-12-16 09:04:49,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.2078853046594982) internal successors, (674), 558 states have internal predecessors, (674), 0 states have call successors, (0), 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 09:04:49,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 674 transitions. [2023-12-16 09:04:49,245 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 674 transitions. Word has length 110 [2023-12-16 09:04:49,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:04:49,245 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 674 transitions. [2023-12-16 09:04:49,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 09:04:49,245 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 674 transitions. [2023-12-16 09:04:49,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 09:04:49,247 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:04:49,247 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:49,252 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 09:04:49,447 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 09:04:49,448 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:04:49,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:04:49,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1940772441, now seen corresponding path program 1 times [2023-12-16 09:04:49,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:04:49,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843824543] [2023-12-16 09:04:49,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:04:49,449 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 09:04:49,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:04:49,451 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 09:04:49,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 09:04:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:04:49,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 09:04:49,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:04:49,823 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 17 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:04:49,824 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 09:04:52,169 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:04:52,169 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:04:52,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843824543] [2023-12-16 09:04:52,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [843824543] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 09:04:52,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 09:04:52,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-16 09:04:52,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695178475] [2023-12-16 09:04:52,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:04:52,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 09:04:52,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:04:52,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 09:04:52,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 09:04:52,171 INFO L87 Difference]: Start difference. First operand 559 states and 674 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 09:05:04,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 09:05:07,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 09:05:23,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:05:23,791 INFO L93 Difference]: Finished difference Result 1414 states and 1740 transitions. [2023-12-16 09:05:23,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 09:05:23,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2023-12-16 09:05:23,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:05:23,798 INFO L225 Difference]: With dead ends: 1414 [2023-12-16 09:05:23,798 INFO L226 Difference]: Without dead ends: 976 [2023-12-16 09:05:23,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 09:05:23,799 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 77 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2023-12-16 09:05:23,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 14 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 31.6s Time] [2023-12-16 09:05:23,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2023-12-16 09:05:23,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 559. [2023-12-16 09:05:23,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.2025089605734767) internal successors, (671), 558 states have internal predecessors, (671), 0 states have call successors, (0), 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 09:05:23,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 671 transitions. [2023-12-16 09:05:23,812 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 671 transitions. Word has length 112 [2023-12-16 09:05:23,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:05:23,812 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 671 transitions. [2023-12-16 09:05:23,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 09:05:23,812 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 671 transitions. [2023-12-16 09:05:23,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-16 09:05:23,814 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:05:23,814 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:05:23,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 09:05:24,023 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 09:05:24,023 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:05:24,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:05:24,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1418629583, now seen corresponding path program 1 times [2023-12-16 09:05:24,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:05:24,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022328170] [2023-12-16 09:05:24,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:05:24,025 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 09:05:24,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:05:24,041 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 09:05:24,070 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 09:05:24,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:05:24,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:05:24,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:05:24,205 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:05:24,206 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:05:24,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:05:24,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022328170] [2023-12-16 09:05:24,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2022328170] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:05:24,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:05:24,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:05:24,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529976370] [2023-12-16 09:05:24,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:05:24,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:05:24,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:05:24,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:05:24,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:05:24,207 INFO L87 Difference]: Start difference. First operand 559 states and 671 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 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 09:05:26,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:05:26,753 INFO L93 Difference]: Finished difference Result 1395 states and 1714 transitions. [2023-12-16 09:05:26,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:05:26,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2023-12-16 09:05:26,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:05:26,757 INFO L225 Difference]: With dead ends: 1395 [2023-12-16 09:05:26,757 INFO L226 Difference]: Without dead ends: 976 [2023-12-16 09:05:26,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 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 09:05:26,758 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 85 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 09:05:26,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 34 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 09:05:26,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2023-12-16 09:05:26,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 837. [2023-12-16 09:05:26,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 836 states have (on average 1.1985645933014355) internal successors, (1002), 836 states have internal predecessors, (1002), 0 states have call successors, (0), 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 09:05:26,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1002 transitions. [2023-12-16 09:05:26,771 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1002 transitions. Word has length 128 [2023-12-16 09:05:26,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:05:26,772 INFO L495 AbstractCegarLoop]: Abstraction has 837 states and 1002 transitions. [2023-12-16 09:05:26,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 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 09:05:26,772 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1002 transitions. [2023-12-16 09:05:26,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-12-16 09:05:26,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:05:26,775 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 09:05:26,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 09:05:26,978 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 09:05:26,979 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:05:26,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:05:26,979 INFO L85 PathProgramCache]: Analyzing trace with hash -344087674, now seen corresponding path program 1 times [2023-12-16 09:05:26,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:05:26,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535000008] [2023-12-16 09:05:26,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:05:26,981 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 09:05:26,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:05:26,982 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 09:05:26,982 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 09:05:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:05:27,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 09:05:27,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:05:27,362 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-16 09:05:27,362 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 09:05:38,302 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-16 09:05:38,302 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:05:38,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535000008] [2023-12-16 09:05:38,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535000008] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 09:05:38,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 09:05:38,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-16 09:05:38,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259047596] [2023-12-16 09:05:38,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:05:38,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 09:05:38,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:05:38,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 09:05:38,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 09:05:38,304 INFO L87 Difference]: Start difference. First operand 837 states and 1002 transitions. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 09:05:55,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-16 09:05:55,222 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 09:05:55,233 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 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 09:05:55,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 09:05:55,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 09:05:55,330 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 49 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2023-12-16 09:05:55,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 9 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 17.0s Time] [2023-12-16 09:05:55,331 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 09:05:55,337 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 (8)] Ended with exit code 0 [2023-12-16 09:05:55,531 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 09:05:55,532 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (837states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (643 states constructed, input type IntersectNwa). [2023-12-16 09:05:55,536 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:05:55,537 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 09:05:55,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 09:05:55 BoogieIcfgContainer [2023-12-16 09:05:55,538 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 09:05:55,539 INFO L158 Benchmark]: Toolchain (without parser) took 77952.44ms. Allocated memory was 316.7MB in the beginning and 380.6MB in the end (delta: 64.0MB). Free memory was 266.3MB in the beginning and 205.0MB in the end (delta: 61.3MB). Peak memory consumption was 126.4MB. Max. memory is 8.0GB. [2023-12-16 09:05:55,539 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 139.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 09:05:55,539 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.49ms. Allocated memory is still 316.7MB. Free memory was 266.3MB in the beginning and 234.9MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-16 09:05:55,539 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.39ms. Allocated memory is still 316.7MB. Free memory was 234.9MB in the beginning and 229.1MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 09:05:55,539 INFO L158 Benchmark]: Boogie Preprocessor took 109.93ms. Allocated memory is still 316.7MB. Free memory was 229.1MB in the beginning and 223.3MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 09:05:55,540 INFO L158 Benchmark]: RCFGBuilder took 2291.71ms. Allocated memory is still 316.7MB. Free memory was 223.3MB in the beginning and 119.5MB in the end (delta: 103.8MB). Peak memory consumption was 103.8MB. Max. memory is 8.0GB. [2023-12-16 09:05:55,554 INFO L158 Benchmark]: TraceAbstraction took 74984.03ms. Allocated memory was 316.7MB in the beginning and 380.6MB in the end (delta: 64.0MB). Free memory was 119.0MB in the beginning and 205.0MB in the end (delta: -86.0MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 09:05:55,556 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 139.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 458.49ms. Allocated memory is still 316.7MB. Free memory was 266.3MB in the beginning and 234.9MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 102.39ms. Allocated memory is still 316.7MB. Free memory was 234.9MB in the beginning and 229.1MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 109.93ms. Allocated memory is still 316.7MB. Free memory was 229.1MB in the beginning and 223.3MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2291.71ms. Allocated memory is still 316.7MB. Free memory was 223.3MB in the beginning and 119.5MB in the end (delta: 103.8MB). Peak memory consumption was 103.8MB. Max. memory is 8.0GB. * TraceAbstraction took 74984.03ms. Allocated memory was 316.7MB in the beginning and 380.6MB in the end (delta: 64.0MB). Free memory was 119.0MB in the beginning and 205.0MB in the end (delta: -86.0MB). There was no memory consumed. 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: 128]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 128). Cancelled while NwaCegarLoop was constructing difference of abstraction (837states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (643 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 144 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 74.9s, OverallIterations: 7, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 58.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 496 SdHoareTripleChecker+Valid, 58.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 496 mSDsluCounter, 626 SdHoareTripleChecker+Invalid, 53.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 394 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2375 IncrementalHoareTripleChecker+Invalid, 2769 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 394 mSolverCounterUnsat, 600 mSDtfsCounter, 2375 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1062 GetRequests, 1050 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=837occurred in iteration=6, InterpolantAutomatonStates: 18, 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, 6 MinimizatonAttempts, 556 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 14.3s InterpolantComputationTime, 743 NumberOfCodeBlocks, 743 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1062 ConstructedInterpolants, 0 QuantifiedInterpolants, 4640 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1006 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 331/451 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