/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/Problem11_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 09:35:32,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 09:35:32,782 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 09:35:32,786 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 09:35:32,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 09:35:32,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 09:35:32,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 09:35:32,810 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 09:35:32,810 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 09:35:32,813 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 09:35:32,813 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 09:35:32,813 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 09:35:32,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 09:35:32,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 09:35:32,815 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 09:35:32,815 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 09:35:32,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 09:35:32,816 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 09:35:32,816 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 09:35:32,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 09:35:32,816 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 09:35:32,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 09:35:32,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 09:35:32,817 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 09:35:32,817 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 09:35:32,817 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 09:35:32,817 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 09:35:32,817 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 09:35:32,817 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 09:35:32,817 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 09:35:32,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 09:35:32,818 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 09:35:32,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 09:35:32,819 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 09:35:32,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 09:35:32,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 09:35:32,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 09:35:32,819 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 09:35:32,820 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 09:35:32,820 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 09:35:32,820 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 09:35:32,820 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 09:35:32,820 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 09:35:32,820 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 09:35:32,821 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 09:35:32,821 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 09:35:32,821 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 09:35:32,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 09:35:33,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 09:35:33,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 09:35:33,005 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 09:35:33,006 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 09:35:33,006 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label38.c [2023-12-22 09:35:33,950 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 09:35:34,154 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 09:35:34,155 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label38.c [2023-12-22 09:35:34,165 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3ea6f114/a3532016157b4f5cafa00f2d0bea9376/FLAG3f2b376fa [2023-12-22 09:35:34,181 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3ea6f114/a3532016157b4f5cafa00f2d0bea9376 [2023-12-22 09:35:34,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 09:35:34,187 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 09:35:34,188 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 09:35:34,188 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 09:35:34,195 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 09:35:34,196 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 09:35:34" (1/1) ... [2023-12-22 09:35:34,197 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@460b8271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:35:34, skipping insertion in model container [2023-12-22 09:35:34,197 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 09:35:34" (1/1) ... [2023-12-22 09:35:34,240 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 09:35:34,450 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/Problem11_label38.c[8652,8665] [2023-12-22 09:35:34,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 09:35:34,615 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 09:35:34,653 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/Problem11_label38.c[8652,8665] [2023-12-22 09:35:34,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 09:35:34,780 INFO L206 MainTranslator]: Completed translation [2023-12-22 09:35:34,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:35:34 WrapperNode [2023-12-22 09:35:34,780 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 09:35:34,781 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 09:35:34,781 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 09:35:34,781 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 09:35:34,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:35:34" (1/1) ... [2023-12-22 09:35:34,805 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:35:34" (1/1) ... [2023-12-22 09:35:34,848 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 998 [2023-12-22 09:35:34,849 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 09:35:34,849 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 09:35:34,849 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 09:35:34,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 09:35:34,870 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:35:34" (1/1) ... [2023-12-22 09:35:34,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:35:34" (1/1) ... [2023-12-22 09:35:34,876 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:35:34" (1/1) ... [2023-12-22 09:35:34,893 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 09:35:34,893 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:35:34" (1/1) ... [2023-12-22 09:35:34,893 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:35:34" (1/1) ... [2023-12-22 09:35:34,913 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:35:34" (1/1) ... [2023-12-22 09:35:34,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:35:34" (1/1) ... [2023-12-22 09:35:34,924 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:35:34" (1/1) ... [2023-12-22 09:35:34,929 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:35:34" (1/1) ... [2023-12-22 09:35:34,935 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 09:35:34,936 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 09:35:34,936 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 09:35:34,936 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 09:35:34,937 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:35:34" (1/1) ... [2023-12-22 09:35:34,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 09:35:34,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 09:35:34,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 09:35:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 09:35:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 09:35:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 09:35:34,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 09:35:35,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 09:35:35,052 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 09:35:35,056 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 09:35:41,320 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 09:35:41,355 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 09:35:41,355 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 09:35:41,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 09:35:41 BoogieIcfgContainer [2023-12-22 09:35:41,355 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 09:35:41,357 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 09:35:41,357 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 09:35:41,359 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 09:35:41,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 09:35:34" (1/3) ... [2023-12-22 09:35:41,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cf0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 09:35:41, skipping insertion in model container [2023-12-22 09:35:41,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:35:34" (2/3) ... [2023-12-22 09:35:41,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cf0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 09:35:41, skipping insertion in model container [2023-12-22 09:35:41,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 09:35:41" (3/3) ... [2023-12-22 09:35:41,365 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label38.c [2023-12-22 09:35:41,378 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 09:35:41,378 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 09:35:41,427 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 09:35:41,432 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;@4cfbb11a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 09:35:41,432 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 09:35:41,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:35:41,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-22 09:35:41,445 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:35:41,447 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] [2023-12-22 09:35:41,447 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:35:41,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:35:41,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1552183181, now seen corresponding path program 1 times [2023-12-22 09:35:41,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:35:41,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141003065] [2023-12-22 09:35:41,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:35:41,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:35:41,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:35:41,468 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 09:35:41,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 09:35:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:35:41,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 09:35:41,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:35:41,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:35:41,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 09:35:41,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:35:41,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141003065] [2023-12-22 09:35:41,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141003065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 09:35:41,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 09:35:41,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 09:35:41,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294190487] [2023-12-22 09:35:41,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 09:35:41,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 09:35:41,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:35:41,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 09:35:41,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 09:35:41,585 INFO L87 Difference]: Start difference. First operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 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 29.5) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:35:41,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:35:41,631 INFO L93 Difference]: Finished difference Result 441 states and 839 transitions. [2023-12-22 09:35:41,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 09:35:41,633 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 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 59 [2023-12-22 09:35:41,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:35:41,641 INFO L225 Difference]: With dead ends: 441 [2023-12-22 09:35:41,641 INFO L226 Difference]: Without dead ends: 219 [2023-12-22 09:35:41,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 09:35:41,646 INFO L413 NwaCegarLoop]: 355 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, 355 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 09:35:41,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 09:35:41,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-22 09:35:41,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-12-22 09:35:41,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.628440366972477) internal successors, (355), 218 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:35:41,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 355 transitions. [2023-12-22 09:35:41,676 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 355 transitions. Word has length 59 [2023-12-22 09:35:41,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:35:41,677 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 355 transitions. [2023-12-22 09:35:41,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:35:41,677 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 355 transitions. [2023-12-22 09:35:41,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-22 09:35:41,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:35:41,678 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] [2023-12-22 09:35:41,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 09:35:41,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:35:41,881 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:35:41,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:35:41,881 INFO L85 PathProgramCache]: Analyzing trace with hash -555731964, now seen corresponding path program 1 times [2023-12-22 09:35:41,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:35:41,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496186724] [2023-12-22 09:35:41,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:35:41,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:35:41,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:35:41,883 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 09:35:41,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 09:35:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:35:41,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 09:35:41,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:35:42,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:35:42,057 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 09:35:42,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:35:42,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496186724] [2023-12-22 09:35:42,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496186724] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 09:35:42,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 09:35:42,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 09:35:42,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046570169] [2023-12-22 09:35:42,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 09:35:42,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 09:35:42,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:35:42,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 09:35:42,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 09:35:42,060 INFO L87 Difference]: Start difference. First operand 219 states and 355 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:35:48,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:35:48,420 INFO L93 Difference]: Finished difference Result 629 states and 1028 transitions. [2023-12-22 09:35:48,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 09:35:48,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 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 59 [2023-12-22 09:35:48,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:35:48,432 INFO L225 Difference]: With dead ends: 629 [2023-12-22 09:35:48,432 INFO L226 Difference]: Without dead ends: 411 [2023-12-22 09:35:48,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 09:35:48,438 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 146 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-12-22 09:35:48,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 144 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-12-22 09:35:48,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2023-12-22 09:35:48,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 408. [2023-12-22 09:35:48,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.4594594594594594) internal successors, (594), 407 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:35:48,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 594 transitions. [2023-12-22 09:35:48,468 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 594 transitions. Word has length 59 [2023-12-22 09:35:48,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:35:48,468 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 594 transitions. [2023-12-22 09:35:48,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:35:48,468 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 594 transitions. [2023-12-22 09:35:48,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-22 09:35:48,471 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:35:48,471 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 09:35:48,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 09:35:48,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:35:48,676 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:35:48,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:35:48,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1668782468, now seen corresponding path program 1 times [2023-12-22 09:35:48,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:35:48,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1060995415] [2023-12-22 09:35:48,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:35:48,678 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:35:48,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:35:48,679 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 09:35:48,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 09:35:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:35:48,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 09:35:48,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:35:48,873 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:35:48,874 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 09:35:48,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:35:48,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1060995415] [2023-12-22 09:35:48,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1060995415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 09:35:48,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 09:35:48,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 09:35:48,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912787084] [2023-12-22 09:35:48,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 09:35:48,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 09:35:48,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:35:48,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 09:35:48,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 09:35:48,876 INFO L87 Difference]: Start difference. First operand 408 states and 594 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:35:57,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:35:57,704 INFO L93 Difference]: Finished difference Result 1198 states and 1750 transitions. [2023-12-22 09:35:57,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 09:35:57,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 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 127 [2023-12-22 09:35:57,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:35:57,713 INFO L225 Difference]: With dead ends: 1198 [2023-12-22 09:35:57,714 INFO L226 Difference]: Without dead ends: 791 [2023-12-22 09:35:57,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 09:35:57,715 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 132 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2023-12-22 09:35:57,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 181 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2023-12-22 09:35:57,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2023-12-22 09:35:57,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 780. [2023-12-22 09:35:57,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 779 states have (on average 1.3478818998716302) internal successors, (1050), 779 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:35:57,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1050 transitions. [2023-12-22 09:35:57,729 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1050 transitions. Word has length 127 [2023-12-22 09:35:57,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:35:57,729 INFO L495 AbstractCegarLoop]: Abstraction has 780 states and 1050 transitions. [2023-12-22 09:35:57,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:35:57,729 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1050 transitions. [2023-12-22 09:35:57,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-22 09:35:57,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:35:57,732 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 09:35:57,738 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 [2023-12-22 09:35:57,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:35:57,936 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:35:57,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:35:57,937 INFO L85 PathProgramCache]: Analyzing trace with hash -2137964875, now seen corresponding path program 1 times [2023-12-22 09:35:57,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:35:57,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630333869] [2023-12-22 09:35:57,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:35:57,938 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:35:57,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:35:57,939 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 09:35:57,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 09:35:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:35:58,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 09:35:58,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:35:58,183 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:35:58,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 09:35:58,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:35:58,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630333869] [2023-12-22 09:35:58,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [630333869] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 09:35:58,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 09:35:58,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 09:35:58,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100734250] [2023-12-22 09:35:58,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 09:35:58,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 09:35:58,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:35:58,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 09:35:58,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 09:35:58,188 INFO L87 Difference]: Start difference. First operand 780 states and 1050 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 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) [2023-12-22 09:36:05,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:36:05,308 INFO L93 Difference]: Finished difference Result 1928 states and 2650 transitions. [2023-12-22 09:36:05,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 09:36:05,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 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 [2023-12-22 09:36:05,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:36:05,319 INFO L225 Difference]: With dead ends: 1928 [2023-12-22 09:36:05,319 INFO L226 Difference]: Without dead ends: 1149 [2023-12-22 09:36:05,320 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 [2023-12-22 09:36:05,322 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 148 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-12-22 09:36:05,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 152 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-12-22 09:36:05,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2023-12-22 09:36:05,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1149. [2023-12-22 09:36:05,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 1148 states have (on average 1.2569686411149825) internal successors, (1443), 1148 states have internal predecessors, (1443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:36:05,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1443 transitions. [2023-12-22 09:36:05,339 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1443 transitions. Word has length 130 [2023-12-22 09:36:05,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:36:05,339 INFO L495 AbstractCegarLoop]: Abstraction has 1149 states and 1443 transitions. [2023-12-22 09:36:05,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 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) [2023-12-22 09:36:05,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1443 transitions. [2023-12-22 09:36:05,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-22 09:36:05,345 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:36:05,345 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 09:36:05,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 09:36:05,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:36:05,547 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:36:05,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:36:05,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1287432789, now seen corresponding path program 1 times [2023-12-22 09:36:05,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:36:05,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1941446633] [2023-12-22 09:36:05,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:36:05,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:36:05,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:36:05,551 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 09:36:05,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 09:36:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:36:05,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 09:36:05,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:36:05,938 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:36:05,938 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 09:36:06,314 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:36:06,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:36:06,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1941446633] [2023-12-22 09:36:06,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1941446633] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 09:36:06,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 09:36:06,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 09:36:06,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451940770] [2023-12-22 09:36:06,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 09:36:06,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 09:36:06,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:36:06,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 09:36:06,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 09:36:06,319 INFO L87 Difference]: Start difference. First operand 1149 states and 1443 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:36:32,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:36:32,460 INFO L93 Difference]: Finished difference Result 2673 states and 3493 transitions. [2023-12-22 09:36:32,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 09:36:32,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 186 [2023-12-22 09:36:32,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:36:32,471 INFO L225 Difference]: With dead ends: 2673 [2023-12-22 09:36:32,471 INFO L226 Difference]: Without dead ends: 1893 [2023-12-22 09:36:32,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 09:36:32,473 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 175 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.1s IncrementalHoareTripleChecker+Time [2023-12-22 09:36:32,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 63 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 26.1s Time] [2023-12-22 09:36:32,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1893 states. [2023-12-22 09:36:32,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1893 to 1890. [2023-12-22 09:36:32,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1890 states, 1889 states have (on average 1.2673372154579143) internal successors, (2394), 1889 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:36:32,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2394 transitions. [2023-12-22 09:36:32,494 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2394 transitions. Word has length 186 [2023-12-22 09:36:32,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:36:32,494 INFO L495 AbstractCegarLoop]: Abstraction has 1890 states and 2394 transitions. [2023-12-22 09:36:32,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:36:32,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2394 transitions. [2023-12-22 09:36:32,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-22 09:36:32,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:36:32,497 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 09:36:32,503 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 [2023-12-22 09:36:32,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:36:32,700 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:36:32,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:36:32,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1593907330, now seen corresponding path program 1 times [2023-12-22 09:36:32,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:36:32,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499444293] [2023-12-22 09:36:32,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:36:32,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:36:32,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:36:32,703 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 09:36:32,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 09:36:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:36:32,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 09:36:32,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:36:33,615 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 115 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:36:33,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 09:36:35,123 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:36:35,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:36:35,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499444293] [2023-12-22 09:36:35,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499444293] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 09:36:35,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 09:36:35,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 09:36:35,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625831314] [2023-12-22 09:36:35,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 09:36:35,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 09:36:35,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:36:35,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 09:36:35,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 09:36:35,125 INFO L87 Difference]: Start difference. First operand 1890 states and 2394 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:36:47,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:36:47,844 INFO L93 Difference]: Finished difference Result 3407 states and 4570 transitions. [2023-12-22 09:36:47,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 09:36:47,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 240 [2023-12-22 09:36:47,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:36:47,856 INFO L225 Difference]: With dead ends: 3407 [2023-12-22 09:36:47,857 INFO L226 Difference]: Without dead ends: 2628 [2023-12-22 09:36:47,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 475 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 09:36:47,858 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 147 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2023-12-22 09:36:47,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 49 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2023-12-22 09:36:47,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2628 states. [2023-12-22 09:36:47,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2628 to 2628. [2023-12-22 09:36:47,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2628 states, 2627 states have (on average 1.2950133231823373) internal successors, (3402), 2627 states have internal predecessors, (3402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:36:47,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2628 states to 2628 states and 3402 transitions. [2023-12-22 09:36:47,888 INFO L78 Accepts]: Start accepts. Automaton has 2628 states and 3402 transitions. Word has length 240 [2023-12-22 09:36:47,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:36:47,888 INFO L495 AbstractCegarLoop]: Abstraction has 2628 states and 3402 transitions. [2023-12-22 09:36:47,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:36:47,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2628 states and 3402 transitions. [2023-12-22 09:36:47,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-12-22 09:36:47,891 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:36:47,892 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 09:36:47,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 09:36:48,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:36:48,108 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:36:48,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:36:48,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1420990296, now seen corresponding path program 1 times [2023-12-22 09:36:48,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:36:48,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848665910] [2023-12-22 09:36:48,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:36:48,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:36:48,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:36:48,111 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 09:36:48,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 09:36:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:36:48,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 09:36:48,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:36:50,302 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 115 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:36:50,302 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 09:36:53,414 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 194 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:36:53,414 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:36:53,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [848665910] [2023-12-22 09:36:53,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [848665910] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 09:36:53,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 09:36:53,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 09:36:53,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096165091] [2023-12-22 09:36:53,415 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 09:36:53,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 09:36:53,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:36:53,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 09:36:53,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-22 09:36:53,416 INFO L87 Difference]: Start difference. First operand 2628 states and 3402 transitions. Second operand has 7 states, 7 states have (on average 65.71428571428571) internal successors, (460), 6 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:37:07,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:37:07,156 INFO L93 Difference]: Finished difference Result 6189 states and 8267 transitions. [2023-12-22 09:37:07,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-22 09:37:07,156 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 65.71428571428571) internal successors, (460), 6 states have internal predecessors, (460), 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 268 [2023-12-22 09:37:07,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:37:07,165 INFO L225 Difference]: With dead ends: 6189 [2023-12-22 09:37:07,165 INFO L226 Difference]: Without dead ends: 3930 [2023-12-22 09:37:07,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 529 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-22 09:37:07,167 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 868 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1651 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 1651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2023-12-22 09:37:07,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 171 Invalid, 1981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 1651 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2023-12-22 09:37:07,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3930 states. [2023-12-22 09:37:07,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3930 to 2620. [2023-12-22 09:37:07,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2620 states, 2619 states have (on average 1.2802596410843834) internal successors, (3353), 2619 states have internal predecessors, (3353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:37:07,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2620 states to 2620 states and 3353 transitions. [2023-12-22 09:37:07,204 INFO L78 Accepts]: Start accepts. Automaton has 2620 states and 3353 transitions. Word has length 268 [2023-12-22 09:37:07,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:37:07,205 INFO L495 AbstractCegarLoop]: Abstraction has 2620 states and 3353 transitions. [2023-12-22 09:37:07,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.71428571428571) internal successors, (460), 6 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:37:07,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2620 states and 3353 transitions. [2023-12-22 09:37:07,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-12-22 09:37:07,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:37:07,208 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 09:37:07,213 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 [2023-12-22 09:37:07,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:37:07,414 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:37:07,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:37:07,414 INFO L85 PathProgramCache]: Analyzing trace with hash -2034998991, now seen corresponding path program 1 times [2023-12-22 09:37:07,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:37:07,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373330302] [2023-12-22 09:37:07,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:37:07,415 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:37:07,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:37:07,416 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 09:37:07,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 09:37:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:37:07,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-22 09:37:07,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:37:09,591 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 84 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:37:09,591 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 09:38:40,756 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 195 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:38:40,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:38:40,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373330302] [2023-12-22 09:38:40,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373330302] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 09:38:40,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 09:38:40,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-22 09:38:40,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900059026] [2023-12-22 09:38:40,757 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 09:38:40,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 09:38:40,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:38:40,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 09:38:40,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-22 09:38:40,758 INFO L87 Difference]: Start difference. First operand 2620 states and 3353 transitions. Second operand has 8 states, 8 states have (on average 64.125) internal successors, (513), 7 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:38:59,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:39:00,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:39:06,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:39:09,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:39:15,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:39:18,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:39:21,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:39:24,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:39:32,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:39:38,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:39:40,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:39:42,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:39:48,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:39:56,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:39:59,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:40:02,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:40:10,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:40:16,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:40:21,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:40:24,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:40:28,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:40:32,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:40:36,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:40:37,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:40:45,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:40:48,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:40:53,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:40:55,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:40:57,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:41:02,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.84s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:41:05,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:41:12,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.95s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:41:15,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:41:18,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:41:22,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:41:25,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:41:27,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:41:28,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:41:31,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:41:36,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:41:42,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:41:51,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:41:57,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:41:58,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:42:01,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:42:07,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:42:07,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:42:07,681 INFO L93 Difference]: Finished difference Result 6929 states and 9128 transitions. [2023-12-22 09:42:07,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 09:42:07,717 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 64.125) internal successors, (513), 7 states have internal predecessors, (513), 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 278 [2023-12-22 09:42:07,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:42:07,727 INFO L225 Difference]: With dead ends: 6929 [2023-12-22 09:42:07,727 INFO L226 Difference]: Without dead ends: 4646 [2023-12-22 09:42:07,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 548 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-22 09:42:07,730 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 319 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 2570 mSolverCounterSat, 258 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 188.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 2831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 2570 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 205.7s IncrementalHoareTripleChecker+Time [2023-12-22 09:42:07,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 245 Invalid, 2831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 2570 Invalid, 3 Unknown, 0 Unchecked, 205.7s Time] [2023-12-22 09:42:07,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4646 states. [2023-12-22 09:42:07,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4646 to 2988. [2023-12-22 09:42:07,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2988 states, 2987 states have (on average 1.2631402745229328) internal successors, (3773), 2987 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:42:07,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2988 states to 2988 states and 3773 transitions. [2023-12-22 09:42:07,769 INFO L78 Accepts]: Start accepts. Automaton has 2988 states and 3773 transitions. Word has length 278 [2023-12-22 09:42:07,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:42:07,770 INFO L495 AbstractCegarLoop]: Abstraction has 2988 states and 3773 transitions. [2023-12-22 09:42:07,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 64.125) internal successors, (513), 7 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:42:07,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2988 states and 3773 transitions. [2023-12-22 09:42:07,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-12-22 09:42:07,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:42:07,773 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 09:42:07,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-22 09:42:07,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:42:07,979 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:42:07,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:42:07,979 INFO L85 PathProgramCache]: Analyzing trace with hash -178216106, now seen corresponding path program 1 times [2023-12-22 09:42:07,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:42:07,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [805274521] [2023-12-22 09:42:07,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:42:07,981 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 [2023-12-22 09:42:07,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:42:07,981 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 09:42:07,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 09:42:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:42:08,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 09:42:08,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:42:08,797 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 115 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:42:08,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 09:42:09,503 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 115 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:42:09,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:42:09,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [805274521] [2023-12-22 09:42:09,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [805274521] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 09:42:09,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 09:42:09,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-22 09:42:09,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106770392] [2023-12-22 09:42:09,504 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 09:42:09,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 09:42:09,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:42:09,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 09:42:09,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-22 09:42:09,505 INFO L87 Difference]: Start difference. First operand 2988 states and 3773 transitions. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 5 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:42:54,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:42:54,114 INFO L93 Difference]: Finished difference Result 11169 states and 14604 transitions. [2023-12-22 09:42:54,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 09:42:54,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 5 states have internal predecessors, (513), 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 286 [2023-12-22 09:42:54,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:42:54,149 INFO L225 Difference]: With dead ends: 11169 [2023-12-22 09:42:54,149 INFO L226 Difference]: Without dead ends: 8366 [2023-12-22 09:42:54,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 566 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-22 09:42:54,153 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 651 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 2132 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 2598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 2132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.4s IncrementalHoareTripleChecker+Time [2023-12-22 09:42:54,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 145 Invalid, 2598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 2132 Invalid, 0 Unknown, 0 Unchecked, 44.4s Time] [2023-12-22 09:42:54,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8366 states. [2023-12-22 09:42:54,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8366 to 7614. [2023-12-22 09:42:54,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7614 states, 7613 states have (on average 1.2338105871535532) internal successors, (9393), 7613 states have internal predecessors, (9393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:42:54,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7614 states to 7614 states and 9393 transitions. [2023-12-22 09:42:54,271 INFO L78 Accepts]: Start accepts. Automaton has 7614 states and 9393 transitions. Word has length 286 [2023-12-22 09:42:54,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:42:54,271 INFO L495 AbstractCegarLoop]: Abstraction has 7614 states and 9393 transitions. [2023-12-22 09:42:54,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 5 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:42:54,272 INFO L276 IsEmpty]: Start isEmpty. Operand 7614 states and 9393 transitions. [2023-12-22 09:42:54,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2023-12-22 09:42:54,276 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:42:54,276 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 09:42:54,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-22 09:42:54,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:42:54,482 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:42:54,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:42:54,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1250649944, now seen corresponding path program 1 times [2023-12-22 09:42:54,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:42:54,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649579132] [2023-12-22 09:42:54,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:42:54,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:42:54,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:42:54,484 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 09:42:54,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 09:42:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:42:54,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-22 09:42:54,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:42:57,849 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 115 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:42:57,849 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 09:43:01,872 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 115 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:43:01,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:43:01,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649579132] [2023-12-22 09:43:01,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649579132] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 09:43:01,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 09:43:01,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-22 09:43:01,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486120263] [2023-12-22 09:43:01,873 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 09:43:01,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 09:43:01,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:43:01,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 09:43:01,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-22 09:43:01,875 INFO L87 Difference]: Start difference. First operand 7614 states and 9393 transitions. Second operand has 8 states, 8 states have (on average 66.125) internal successors, (529), 7 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:43:35,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:43:39,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:43:39,333 INFO L93 Difference]: Finished difference Result 18108 states and 22588 transitions. [2023-12-22 09:43:39,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 09:43:39,334 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 66.125) internal successors, (529), 7 states have internal predecessors, (529), 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 295 [2023-12-22 09:43:39,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:43:39,388 INFO L225 Difference]: With dead ends: 18108 [2023-12-22 09:43:39,388 INFO L226 Difference]: Without dead ends: 12157 [2023-12-22 09:43:39,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2023-12-22 09:43:39,395 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 941 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 2360 mSolverCounterSat, 535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 2895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 535 IncrementalHoareTripleChecker+Valid, 2360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.9s IncrementalHoareTripleChecker+Time [2023-12-22 09:43:39,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 137 Invalid, 2895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [535 Valid, 2360 Invalid, 0 Unknown, 0 Unchecked, 36.9s Time] [2023-12-22 09:43:39,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12157 states. [2023-12-22 09:43:39,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12157 to 12070. [2023-12-22 09:43:39,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12070 states, 12069 states have (on average 1.2284364901814566) internal successors, (14826), 12069 states have internal predecessors, (14826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:43:39,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12070 states to 12070 states and 14826 transitions. [2023-12-22 09:43:39,540 INFO L78 Accepts]: Start accepts. Automaton has 12070 states and 14826 transitions. Word has length 295 [2023-12-22 09:43:39,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:43:39,540 INFO L495 AbstractCegarLoop]: Abstraction has 12070 states and 14826 transitions. [2023-12-22 09:43:39,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 66.125) internal successors, (529), 7 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:43:39,541 INFO L276 IsEmpty]: Start isEmpty. Operand 12070 states and 14826 transitions. [2023-12-22 09:43:39,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2023-12-22 09:43:39,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:43:39,549 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 09:43:39,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-22 09:43:39,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:43:39,755 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:43:39,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:43:39,756 INFO L85 PathProgramCache]: Analyzing trace with hash -222046232, now seen corresponding path program 1 times [2023-12-22 09:43:39,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:43:39,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803513275] [2023-12-22 09:43:39,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:43:39,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:43:39,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:43:39,759 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 09:43:39,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-22 09:43:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:43:39,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-22 09:43:39,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:43:45,918 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 86 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:43:45,919 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 09:46:31,148 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 242 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:46:31,149 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:46:31,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [803513275] [2023-12-22 09:46:31,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [803513275] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 09:46:31,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 09:46:31,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-22 09:46:31,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267661155] [2023-12-22 09:46:31,149 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 09:46:31,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 09:46:31,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:46:31,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 09:46:31,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-22 09:46:31,151 INFO L87 Difference]: Start difference. First operand 12070 states and 14826 transitions. Second operand has 8 states, 8 states have (on average 85.5) internal successors, (684), 7 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:46:44,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:46:45,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:46:47,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:46:48,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:46:49,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:46:51,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:46:53,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:00,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:02,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:06,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:07,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:12,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:15,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:20,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:21,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:27,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:31,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:33,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:37,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.40s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:39,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:40,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:43,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:44,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:48,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:50,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:52,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:54,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:47:58,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:02,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:05,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:08,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:10,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:12,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:21,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:25,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:28,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:32,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:33,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:35,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:36,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:38,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:41,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:44,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:46,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:49,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:55,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:48:59,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:04,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:06,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:08,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:11,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:14,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:16,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:19,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:23,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:25,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:28,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:31,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:32,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:34,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:36,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:41,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:43,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:45,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:48,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:50,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:53,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:54,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:58,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:49:59,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:50:00,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:50:04,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.28s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:50:08,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-22 09:50:09,785 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 09:50:09,786 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 (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 09:50:10,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-22 09:50:10,986 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-22 09:50:11,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-22 09:50:11,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 727 GetRequests, 720 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-22 09:50:11,003 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 173 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 164 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 209.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 217.7s IncrementalHoareTripleChecker+Time [2023-12-22 09:50:11,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 166 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 1987 Invalid, 6 Unknown, 0 Unchecked, 217.7s Time] [2023-12-22 09:50:11,004 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 09:50:11,004 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-22 09:50:11,007 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 09:50:11,009 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 09:50:11,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 09:50:11 BoogieIcfgContainer [2023-12-22 09:50:11,010 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 09:50:11,010 INFO L158 Benchmark]: Toolchain (without parser) took 876822.86ms. Allocated memory was 207.6MB in the beginning and 300.9MB in the end (delta: 93.3MB). Free memory was 161.1MB in the beginning and 183.9MB in the end (delta: -22.8MB). Peak memory consumption was 71.2MB. Max. memory is 8.0GB. [2023-12-22 09:50:11,010 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 207.6MB. Free memory is still 165.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 09:50:11,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 592.04ms. Allocated memory is still 207.6MB. Free memory was 161.1MB in the beginning and 166.5MB in the end (delta: -5.5MB). Peak memory consumption was 50.9MB. Max. memory is 8.0GB. [2023-12-22 09:50:11,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.85ms. Allocated memory is still 207.6MB. Free memory was 166.5MB in the beginning and 157.6MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-22 09:50:11,011 INFO L158 Benchmark]: Boogie Preprocessor took 86.29ms. Allocated memory is still 207.6MB. Free memory was 157.6MB in the beginning and 147.6MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-22 09:50:11,011 INFO L158 Benchmark]: RCFGBuilder took 6419.41ms. Allocated memory was 207.6MB in the beginning and 300.9MB in the end (delta: 93.3MB). Free memory was 147.6MB in the beginning and 143.4MB in the end (delta: 4.2MB). Peak memory consumption was 98.0MB. Max. memory is 8.0GB. [2023-12-22 09:50:11,011 INFO L158 Benchmark]: TraceAbstraction took 869653.31ms. Allocated memory is still 300.9MB. Free memory was 142.9MB in the beginning and 183.9MB in the end (delta: -41.0MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 09:50:11,012 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 207.6MB. Free memory is still 165.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 592.04ms. Allocated memory is still 207.6MB. Free memory was 161.1MB in the beginning and 166.5MB in the end (delta: -5.5MB). Peak memory consumption was 50.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.85ms. Allocated memory is still 207.6MB. Free memory was 166.5MB in the beginning and 157.6MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 86.29ms. Allocated memory is still 207.6MB. Free memory was 157.6MB in the beginning and 147.6MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 6419.41ms. Allocated memory was 207.6MB in the beginning and 300.9MB in the end (delta: 93.3MB). Free memory was 147.6MB in the beginning and 143.4MB in the end (delta: 4.2MB). Peak memory consumption was 98.0MB. Max. memory is 8.0GB. * TraceAbstraction took 869653.31ms. Allocated memory is still 300.9MB. Free memory was 142.9MB in the beginning and 183.9MB in the end (delta: -41.0MB). 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: 196]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 196). Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 221 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 869.6s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 584.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 3700 SdHoareTripleChecker+Valid, 579.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3700 mSDsluCounter, 1808 SdHoareTripleChecker+Invalid, 539.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 521 mSDsCounter, 2398 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13457 IncrementalHoareTripleChecker+Invalid, 15865 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2398 mSolverCounterUnsat, 1287 mSDtfsCounter, 13457 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4207 GetRequests, 4155 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12070occurred in iteration=10, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 3824 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 281.8s InterpolantComputationTime, 2292 NumberOfCodeBlocks, 2292 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 4191 ConstructedInterpolants, 0 QuantifiedInterpolants, 46219 SizeOfPredicates, 15 NumberOfNonLiveVariables, 2824 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 1845/2822 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