/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/array-programs/partial_mod_count_limited_5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 18:09:28,488 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 18:09:28,552 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-21 18:09:28,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 18:09:28,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 18:09:28,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 18:09:28,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 18:09:28,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 18:09:28,579 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 18:09:28,582 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 18:09:28,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 18:09:28,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 18:09:28,583 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 18:09:28,584 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 18:09:28,584 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 18:09:28,584 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 18:09:28,585 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 18:09:28,585 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 18:09:28,585 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 18:09:28,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 18:09:28,585 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 18:09:28,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 18:09:28,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 18:09:28,586 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 18:09:28,586 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 18:09:28,586 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 18:09:28,586 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 18:09:28,586 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 18:09:28,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 18:09:28,587 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 18:09:28,587 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 18:09:28,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 18:09:28,588 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 18:09:28,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 18:09:28,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 18:09:28,588 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 18:09:28,588 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 18:09:28,588 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 18:09:28,588 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 18:09:28,589 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 18:09:28,589 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 18:09:28,589 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 18:09:28,589 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 18:09:28,589 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 18:09:28,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 18:09:28,589 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 18:09:28,590 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 18:09:28,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 18:09:28,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 18:09:28,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 18:09:28,790 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 18:09:28,790 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 18:09:28,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-programs/partial_mod_count_limited_5.c [2023-12-21 18:09:29,808 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 18:09:29,946 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 18:09:29,947 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-programs/partial_mod_count_limited_5.c [2023-12-21 18:09:29,951 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d3518f89/46afae9fda724de3931837518847d232/FLAGa48c8526d [2023-12-21 18:09:29,961 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d3518f89/46afae9fda724de3931837518847d232 [2023-12-21 18:09:29,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 18:09:29,963 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 18:09:29,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 18:09:29,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 18:09:29,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 18:09:29,968 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 06:09:29" (1/1) ... [2023-12-21 18:09:29,969 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e11e168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:09:29, skipping insertion in model container [2023-12-21 18:09:29,969 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 06:09:29" (1/1) ... [2023-12-21 18:09:29,985 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 18:09:30,089 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-programs/partial_mod_count_limited_5.c[331,344] [2023-12-21 18:09:30,101 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 18:09:30,108 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 18:09:30,117 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-programs/partial_mod_count_limited_5.c[331,344] [2023-12-21 18:09:30,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 18:09:30,131 INFO L206 MainTranslator]: Completed translation [2023-12-21 18:09:30,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:09:30 WrapperNode [2023-12-21 18:09:30,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 18:09:30,132 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 18:09:30,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 18:09:30,132 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 18:09:30,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:09:30" (1/1) ... [2023-12-21 18:09:30,146 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:09:30" (1/1) ... [2023-12-21 18:09:30,156 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2023-12-21 18:09:30,156 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 18:09:30,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 18:09:30,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 18:09:30,157 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 18:09:30,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:09:30" (1/1) ... [2023-12-21 18:09:30,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:09:30" (1/1) ... [2023-12-21 18:09:30,167 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:09:30" (1/1) ... [2023-12-21 18:09:30,174 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2023-12-21 18:09:30,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:09:30" (1/1) ... [2023-12-21 18:09:30,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:09:30" (1/1) ... [2023-12-21 18:09:30,181 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:09:30" (1/1) ... [2023-12-21 18:09:30,183 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:09:30" (1/1) ... [2023-12-21 18:09:30,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:09:30" (1/1) ... [2023-12-21 18:09:30,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:09:30" (1/1) ... [2023-12-21 18:09:30,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 18:09:30,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 18:09:30,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 18:09:30,186 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 18:09:30,188 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:09:30" (1/1) ... [2023-12-21 18:09:30,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 18:09:30,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 18:09:30,209 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) [2023-12-21 18:09:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 18:09:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 18:09:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-21 18:09:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-21 18:09:30,214 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 [2023-12-21 18:09:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-21 18:09:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-21 18:09:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 18:09:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 18:09:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-21 18:09:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-21 18:09:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-21 18:09:30,321 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 18:09:30,323 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 18:09:30,540 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 18:09:30,559 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 18:09:30,559 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-21 18:09:30,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 06:09:30 BoogieIcfgContainer [2023-12-21 18:09:30,560 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 18:09:30,569 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 18:09:30,569 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 18:09:30,571 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 18:09:30,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 06:09:29" (1/3) ... [2023-12-21 18:09:30,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1093b733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 06:09:30, skipping insertion in model container [2023-12-21 18:09:30,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:09:30" (2/3) ... [2023-12-21 18:09:30,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1093b733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 06:09:30, skipping insertion in model container [2023-12-21 18:09:30,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 06:09:30" (3/3) ... [2023-12-21 18:09:30,573 INFO L112 eAbstractionObserver]: Analyzing ICFG partial_mod_count_limited_5.c [2023-12-21 18:09:30,584 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 18:09:30,584 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 18:09:30,619 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 18:09:30,623 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;@7c4e60fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 18:09:30,623 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 18:09:30,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.625) internal successors, (26), 17 states have internal predecessors, (26), 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) [2023-12-21 18:09:30,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-21 18:09:30,629 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:09:30,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:09:30,630 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:09:30,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:09:30,633 INFO L85 PathProgramCache]: Analyzing trace with hash -245393117, now seen corresponding path program 1 times [2023-12-21 18:09:30,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:09:30,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407493947] [2023-12-21 18:09:30,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:09:30,641 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 [2023-12-21 18:09:30,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:09:30,642 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) [2023-12-21 18:09:30,643 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 [2023-12-21 18:09:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:09:30,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 18:09:30,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:09:30,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 18:09:30,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 18:09:30,758 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:09:30,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407493947] [2023-12-21 18:09:30,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [407493947] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 18:09:30,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 18:09:30,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 18:09:30,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175968171] [2023-12-21 18:09:30,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 18:09:30,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 18:09:30,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:09:30,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 18:09:30,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 18:09:30,784 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.625) internal successors, (26), 17 states have internal predecessors, (26), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2023-12-21 18:09:30,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:09:30,802 INFO L93 Difference]: Finished difference Result 34 states and 49 transitions. [2023-12-21 18:09:30,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 18:09:30,804 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2023-12-21 18:09:30,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:09:30,809 INFO L225 Difference]: With dead ends: 34 [2023-12-21 18:09:30,809 INFO L226 Difference]: Without dead ends: 16 [2023-12-21 18:09:30,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 18:09:30,814 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 18:09:30,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 18:09:30,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-12-21 18:09:30,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-12-21 18:09:30,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 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) [2023-12-21 18:09:30,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2023-12-21 18:09:30,834 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 10 [2023-12-21 18:09:30,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:09:30,835 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2023-12-21 18:09:30,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2023-12-21 18:09:30,835 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2023-12-21 18:09:30,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-21 18:09:30,836 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:09:30,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:09:30,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-21 18:09:31,040 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 [2023-12-21 18:09:31,043 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:09:31,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:09:31,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1639468179, now seen corresponding path program 1 times [2023-12-21 18:09:31,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:09:31,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336379873] [2023-12-21 18:09:31,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:09:31,045 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 [2023-12-21 18:09:31,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:09:31,046 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) [2023-12-21 18:09:31,053 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 [2023-12-21 18:09:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:09:31,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 18:09:31,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:09:31,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 18:09:31,164 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 18:09:31,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:09:31,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336379873] [2023-12-21 18:09:31,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336379873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 18:09:31,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 18:09:31,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 18:09:31,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396905786] [2023-12-21 18:09:31,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 18:09:31,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 18:09:31,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:09:31,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 18:09:31,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 18:09:31,166 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-12-21 18:09:31,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:09:31,318 INFO L93 Difference]: Finished difference Result 41 states and 53 transitions. [2023-12-21 18:09:31,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 18:09:31,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2023-12-21 18:09:31,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:09:31,321 INFO L225 Difference]: With dead ends: 41 [2023-12-21 18:09:31,321 INFO L226 Difference]: Without dead ends: 28 [2023-12-21 18:09:31,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 18:09:31,322 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 43 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 18:09:31,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 18 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 18:09:31,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-12-21 18:09:31,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2023-12-21 18:09:31,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 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) [2023-12-21 18:09:31,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2023-12-21 18:09:31,326 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2023-12-21 18:09:31,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:09:31,327 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-12-21 18:09:31,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-12-21 18:09:31,327 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-12-21 18:09:31,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-21 18:09:31,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:09:31,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:09:31,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-21 18:09:31,532 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 [2023-12-21 18:09:31,532 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:09:31,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:09:31,533 INFO L85 PathProgramCache]: Analyzing trace with hash 563464204, now seen corresponding path program 1 times [2023-12-21 18:09:31,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:09:31,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922453615] [2023-12-21 18:09:31,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:09:31,534 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 [2023-12-21 18:09:31,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:09:31,534 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) [2023-12-21 18:09:31,535 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 [2023-12-21 18:09:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:09:31,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 18:09:31,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:09:31,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-21 18:09:31,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 18:09:31,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 18:09:31,744 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:09:31,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1922453615] [2023-12-21 18:09:31,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1922453615] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 18:09:31,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 18:09:31,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 18:09:31,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371273895] [2023-12-21 18:09:31,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 18:09:31,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 18:09:31,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:09:31,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 18:09:31,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-21 18:09:31,746 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-12-21 18:09:31,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:09:31,903 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2023-12-21 18:09:31,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 18:09:31,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2023-12-21 18:09:31,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:09:31,904 INFO L225 Difference]: With dead ends: 41 [2023-12-21 18:09:31,904 INFO L226 Difference]: Without dead ends: 28 [2023-12-21 18:09:31,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-21 18:09:31,905 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 18:09:31,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 41 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 18:09:31,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-12-21 18:09:31,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2023-12-21 18:09:31,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 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) [2023-12-21 18:09:31,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2023-12-21 18:09:31,908 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 15 [2023-12-21 18:09:31,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:09:31,909 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2023-12-21 18:09:31,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-12-21 18:09:31,909 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-12-21 18:09:31,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-21 18:09:31,909 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:09:31,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:09:31,925 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 [2023-12-21 18:09:32,110 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 [2023-12-21 18:09:32,110 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:09:32,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:09:32,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1243522574, now seen corresponding path program 1 times [2023-12-21 18:09:32,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:09:32,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620417491] [2023-12-21 18:09:32,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:09:32,111 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 [2023-12-21 18:09:32,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:09:32,112 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) [2023-12-21 18:09:32,116 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 [2023-12-21 18:09:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:09:32,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 18:09:32,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:09:32,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 18:09:32,249 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:09:32,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 18:09:32,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:09:32,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620417491] [2023-12-21 18:09:32,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620417491] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:09:32,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:09:32,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-21 18:09:32,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409266161] [2023-12-21 18:09:32,300 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:09:32,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 18:09:32,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:09:32,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 18:09:32,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 18:09:32,301 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 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) [2023-12-21 18:09:32,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:09:32,564 INFO L93 Difference]: Finished difference Result 67 states and 85 transitions. [2023-12-21 18:09:32,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 18:09:32,564 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 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 15 [2023-12-21 18:09:32,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:09:32,565 INFO L225 Difference]: With dead ends: 67 [2023-12-21 18:09:32,565 INFO L226 Difference]: Without dead ends: 54 [2023-12-21 18:09:32,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-12-21 18:09:32,566 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 118 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 18:09:32,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 40 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 18:09:32,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-12-21 18:09:32,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 32. [2023-12-21 18:09:32,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 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) [2023-12-21 18:09:32,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2023-12-21 18:09:32,573 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 15 [2023-12-21 18:09:32,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:09:32,573 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2023-12-21 18:09:32,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 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) [2023-12-21 18:09:32,574 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2023-12-21 18:09:32,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-21 18:09:32,574 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:09:32,574 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:09:32,582 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 [2023-12-21 18:09:32,776 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 [2023-12-21 18:09:32,776 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:09:32,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:09:32,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1322989487, now seen corresponding path program 1 times [2023-12-21 18:09:32,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:09:32,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708858947] [2023-12-21 18:09:32,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:09:32,777 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 [2023-12-21 18:09:32,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:09:32,778 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) [2023-12-21 18:09:32,795 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 [2023-12-21 18:09:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:09:32,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 18:09:32,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:09:32,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-21 18:09:33,028 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-21 18:09:33,028 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:09:33,091 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-21 18:09:33,092 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:09:33,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708858947] [2023-12-21 18:09:33,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [708858947] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:09:33,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:09:33,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-21 18:09:33,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554690720] [2023-12-21 18:09:33,092 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:09:33,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 18:09:33,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:09:33,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 18:09:33,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-12-21 18:09:33,095 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 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) [2023-12-21 18:09:33,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:09:33,522 INFO L93 Difference]: Finished difference Result 90 states and 111 transitions. [2023-12-21 18:09:33,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 18:09:33,522 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 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 30 [2023-12-21 18:09:33,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:09:33,523 INFO L225 Difference]: With dead ends: 90 [2023-12-21 18:09:33,523 INFO L226 Difference]: Without dead ends: 70 [2023-12-21 18:09:33,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2023-12-21 18:09:33,524 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 73 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 18:09:33,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 96 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 18:09:33,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-12-21 18:09:33,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 37. [2023-12-21 18:09:33,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 36 states have internal predecessors, (44), 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) [2023-12-21 18:09:33,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2023-12-21 18:09:33,529 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 30 [2023-12-21 18:09:33,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:09:33,529 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2023-12-21 18:09:33,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 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) [2023-12-21 18:09:33,529 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2023-12-21 18:09:33,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-21 18:09:33,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:09:33,530 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:09:33,550 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 [2023-12-21 18:09:33,732 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 [2023-12-21 18:09:33,732 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:09:33,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:09:33,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1283034067, now seen corresponding path program 2 times [2023-12-21 18:09:33,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:09:33,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150053775] [2023-12-21 18:09:33,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 18:09:33,733 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 [2023-12-21 18:09:33,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:09:33,734 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) [2023-12-21 18:09:33,735 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 [2023-12-21 18:09:33,810 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-21 18:09:33,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:09:33,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 18:09:33,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:09:34,007 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 18:09:34,008 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 18:09:34,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:09:34,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150053775] [2023-12-21 18:09:34,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [150053775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 18:09:34,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 18:09:34,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 18:09:34,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849951280] [2023-12-21 18:09:34,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 18:09:34,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 18:09:34,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:09:34,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 18:09:34,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 18:09:34,009 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-12-21 18:09:34,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:09:34,151 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2023-12-21 18:09:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 18:09:34,152 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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 30 [2023-12-21 18:09:34,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:09:34,152 INFO L225 Difference]: With dead ends: 44 [2023-12-21 18:09:34,152 INFO L226 Difference]: Without dead ends: 42 [2023-12-21 18:09:34,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 18:09:34,153 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 4 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 18:09:34,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 23 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 18:09:34,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-12-21 18:09:34,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-12-21 18:09:34,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 41 states have internal predecessors, (50), 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) [2023-12-21 18:09:34,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2023-12-21 18:09:34,159 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 30 [2023-12-21 18:09:34,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:09:34,159 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2023-12-21 18:09:34,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-12-21 18:09:34,159 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2023-12-21 18:09:34,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-21 18:09:34,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:09:34,163 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:09:34,173 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 [2023-12-21 18:09:34,371 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 [2023-12-21 18:09:34,371 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:09:34,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:09:34,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1282974485, now seen corresponding path program 1 times [2023-12-21 18:09:34,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:09:34,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175746591] [2023-12-21 18:09:34,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:09:34,372 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 [2023-12-21 18:09:34,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:09:34,373 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) [2023-12-21 18:09:34,374 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 [2023-12-21 18:09:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:09:34,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 18:09:34,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:09:34,613 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-21 18:09:34,613 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:09:35,449 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-21 18:09:35,449 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:09:35,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175746591] [2023-12-21 18:09:35,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175746591] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:09:35,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:09:35,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-21 18:09:35,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319536303] [2023-12-21 18:09:35,449 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:09:35,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 18:09:35,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:09:35,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 18:09:35,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-21 18:09:35,450 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 9 states have internal predecessors, (42), 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) [2023-12-21 18:09:36,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:09:36,010 INFO L93 Difference]: Finished difference Result 146 states and 177 transitions. [2023-12-21 18:09:36,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 18:09:36,013 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 9 states have internal predecessors, (42), 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 30 [2023-12-21 18:09:36,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:09:36,014 INFO L225 Difference]: With dead ends: 146 [2023-12-21 18:09:36,014 INFO L226 Difference]: Without dead ends: 121 [2023-12-21 18:09:36,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-12-21 18:09:36,015 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 279 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 18:09:36,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 83 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 18:09:36,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-12-21 18:09:36,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 48. [2023-12-21 18:09:36,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.148936170212766) internal successors, (54), 47 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:09:36,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2023-12-21 18:09:36,023 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 30 [2023-12-21 18:09:36,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:09:36,023 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2023-12-21 18:09:36,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 9 states have internal predecessors, (42), 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) [2023-12-21 18:09:36,023 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2023-12-21 18:09:36,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-21 18:09:36,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:09:36,024 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:09:36,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-21 18:09:36,224 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 [2023-12-21 18:09:36,225 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:09:36,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:09:36,225 INFO L85 PathProgramCache]: Analyzing trace with hash -716289739, now seen corresponding path program 1 times [2023-12-21 18:09:36,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:09:36,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464391610] [2023-12-21 18:09:36,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:09:36,226 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 [2023-12-21 18:09:36,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:09:36,227 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) [2023-12-21 18:09:36,228 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 [2023-12-21 18:09:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:09:36,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-21 18:09:36,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:09:36,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-21 18:09:36,433 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 33 proven. 46 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 18:09:36,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:09:36,554 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 33 proven. 46 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 18:09:36,555 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:09:36,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464391610] [2023-12-21 18:09:36,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464391610] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:09:36,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:09:36,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-21 18:09:36,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141050589] [2023-12-21 18:09:36,555 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:09:36,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 18:09:36,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:09:36,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 18:09:36,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2023-12-21 18:09:36,556 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 16 states, 16 states have (on average 4.0) internal successors, (64), 16 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:09:37,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:09:37,865 INFO L93 Difference]: Finished difference Result 226 states and 273 transitions. [2023-12-21 18:09:37,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-21 18:09:37,865 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.0) internal successors, (64), 16 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2023-12-21 18:09:37,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:09:37,867 INFO L225 Difference]: With dead ends: 226 [2023-12-21 18:09:37,867 INFO L226 Difference]: Without dead ends: 205 [2023-12-21 18:09:37,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=437, Invalid=1045, Unknown=0, NotChecked=0, Total=1482 [2023-12-21 18:09:37,869 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 310 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 18:09:37,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 273 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 18:09:37,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-12-21 18:09:37,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 76. [2023-12-21 18:09:37,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 75 states have internal predecessors, (92), 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) [2023-12-21 18:09:37,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 92 transitions. [2023-12-21 18:09:37,877 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 92 transitions. Word has length 40 [2023-12-21 18:09:37,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:09:37,877 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 92 transitions. [2023-12-21 18:09:37,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.0) internal successors, (64), 16 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:09:37,877 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 92 transitions. [2023-12-21 18:09:37,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-21 18:09:37,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:09:37,878 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:09:37,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-21 18:09:38,096 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 [2023-12-21 18:09:38,097 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:09:38,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:09:38,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1047348619, now seen corresponding path program 1 times [2023-12-21 18:09:38,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:09:38,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687938945] [2023-12-21 18:09:38,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:09:38,097 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 [2023-12-21 18:09:38,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:09:38,098 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) [2023-12-21 18:09:38,104 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 [2023-12-21 18:09:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:09:38,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-21 18:09:38,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:09:38,363 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 18:09:38,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:09:38,625 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 18:09:38,625 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:09:38,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687938945] [2023-12-21 18:09:38,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687938945] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:09:38,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:09:38,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-12-21 18:09:38,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646393003] [2023-12-21 18:09:38,626 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:09:38,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-21 18:09:38,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:09:38,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-21 18:09:38,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-12-21 18:09:38,628 INFO L87 Difference]: Start difference. First operand 76 states and 92 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 17 states have internal predecessors, (74), 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) [2023-12-21 18:09:39,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:09:39,969 INFO L93 Difference]: Finished difference Result 288 states and 353 transitions. [2023-12-21 18:09:39,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-21 18:09:39,970 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 17 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2023-12-21 18:09:39,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:09:39,971 INFO L225 Difference]: With dead ends: 288 [2023-12-21 18:09:39,971 INFO L226 Difference]: Without dead ends: 249 [2023-12-21 18:09:39,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2023-12-21 18:09:39,972 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 709 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 18:09:39,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 356 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 18:09:39,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-12-21 18:09:39,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 93. [2023-12-21 18:09:39,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.1956521739130435) internal successors, (110), 92 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:09:39,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 110 transitions. [2023-12-21 18:09:39,979 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 110 transitions. Word has length 40 [2023-12-21 18:09:39,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:09:39,979 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 110 transitions. [2023-12-21 18:09:39,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 17 states have internal predecessors, (74), 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) [2023-12-21 18:09:39,980 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 110 transitions. [2023-12-21 18:09:39,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 18:09:39,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:09:39,981 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:09:39,992 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 [2023-12-21 18:09:40,188 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 [2023-12-21 18:09:40,189 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:09:40,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:09:40,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1756675599, now seen corresponding path program 2 times [2023-12-21 18:09:40,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:09:40,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749849702] [2023-12-21 18:09:40,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 18:09:40,191 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 [2023-12-21 18:09:40,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:09:40,192 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) [2023-12-21 18:09:40,196 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 [2023-12-21 18:09:40,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-21 18:09:40,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:09:40,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 18:09:40,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:09:40,704 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2023-12-21 18:09:40,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 18:09:40,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:09:40,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [749849702] [2023-12-21 18:09:40,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [749849702] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 18:09:40,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 18:09:40,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 18:09:40,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347487095] [2023-12-21 18:09:40,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 18:09:40,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 18:09:40,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:09:40,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 18:09:40,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 18:09:40,705 INFO L87 Difference]: Start difference. First operand 93 states and 110 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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) [2023-12-21 18:09:40,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:09:40,854 INFO L93 Difference]: Finished difference Result 100 states and 118 transitions. [2023-12-21 18:09:40,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 18:09:40,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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 80 [2023-12-21 18:09:40,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:09:40,855 INFO L225 Difference]: With dead ends: 100 [2023-12-21 18:09:40,855 INFO L226 Difference]: Without dead ends: 98 [2023-12-21 18:09:40,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 18:09:40,856 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 11 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 18:09:40,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 34 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 18:09:40,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-12-21 18:09:40,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-12-21 18:09:40,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.1958762886597938) internal successors, (116), 97 states have internal predecessors, (116), 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) [2023-12-21 18:09:40,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 116 transitions. [2023-12-21 18:09:40,863 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 116 transitions. Word has length 80 [2023-12-21 18:09:40,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:09:40,863 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 116 transitions. [2023-12-21 18:09:40,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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) [2023-12-21 18:09:40,863 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 116 transitions. [2023-12-21 18:09:40,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 18:09:40,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:09:40,864 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:09:40,874 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 [2023-12-21 18:09:41,071 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 [2023-12-21 18:09:41,072 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:09:41,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:09:41,072 INFO L85 PathProgramCache]: Analyzing trace with hash -276869581, now seen corresponding path program 1 times [2023-12-21 18:09:41,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:09:41,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007829849] [2023-12-21 18:09:41,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:09:41,073 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 [2023-12-21 18:09:41,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:09:41,074 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) [2023-12-21 18:09:41,074 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 [2023-12-21 18:09:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:09:41,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-21 18:09:41,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:09:41,698 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 251 proven. 119 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-12-21 18:09:41,698 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:09:44,168 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 251 proven. 119 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-12-21 18:09:44,169 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:09:44,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007829849] [2023-12-21 18:09:44,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2007829849] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:09:44,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:09:44,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-12-21 18:09:44,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689536130] [2023-12-21 18:09:44,169 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:09:44,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-21 18:09:44,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:09:44,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-21 18:09:44,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2023-12-21 18:09:44,170 INFO L87 Difference]: Start difference. First operand 98 states and 116 transitions. Second operand has 20 states, 20 states have (on average 4.7) internal successors, (94), 19 states have internal predecessors, (94), 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) [2023-12-21 18:09:46,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:09:46,415 INFO L93 Difference]: Finished difference Result 423 states and 508 transitions. [2023-12-21 18:09:46,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 18:09:46,417 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.7) internal successors, (94), 19 states have internal predecessors, (94), 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 85 [2023-12-21 18:09:46,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:09:46,421 INFO L225 Difference]: With dead ends: 423 [2023-12-21 18:09:46,421 INFO L226 Difference]: Without dead ends: 367 [2023-12-21 18:09:46,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=278, Invalid=478, Unknown=0, NotChecked=0, Total=756 [2023-12-21 18:09:46,422 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 897 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 18:09:46,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 440 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 18:09:46,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-12-21 18:09:46,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 103. [2023-12-21 18:09:46,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 102 states have (on average 1.1176470588235294) internal successors, (114), 102 states have internal predecessors, (114), 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) [2023-12-21 18:09:46,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 114 transitions. [2023-12-21 18:09:46,431 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 114 transitions. Word has length 85 [2023-12-21 18:09:46,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:09:46,431 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 114 transitions. [2023-12-21 18:09:46,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.7) internal successors, (94), 19 states have internal predecessors, (94), 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) [2023-12-21 18:09:46,432 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 114 transitions. [2023-12-21 18:09:46,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 18:09:46,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:09:46,432 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 10, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:09:46,449 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 [2023-12-21 18:09:46,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 18:09:46,636 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:09:46,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:09:46,637 INFO L85 PathProgramCache]: Analyzing trace with hash 624648079, now seen corresponding path program 1 times [2023-12-21 18:09:46,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:09:46,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113496444] [2023-12-21 18:09:46,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:09:46,637 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 [2023-12-21 18:09:46,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:09:46,638 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 18:09:46,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-21 18:09:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:09:46,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-21 18:09:46,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:09:46,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-21 18:09:46,965 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 291 proven. 265 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-21 18:09:46,965 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:09:47,256 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 291 proven. 265 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-21 18:09:47,257 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:09:47,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113496444] [2023-12-21 18:09:47,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113496444] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:09:47,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:09:47,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2023-12-21 18:09:47,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910045485] [2023-12-21 18:09:47,257 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:09:47,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-21 18:09:47,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:09:47,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-21 18:09:47,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=568, Unknown=0, NotChecked=0, Total=756 [2023-12-21 18:09:47,259 INFO L87 Difference]: Start difference. First operand 103 states and 114 transitions. Second operand has 28 states, 28 states have (on average 4.5) internal successors, (126), 28 states have internal predecessors, (126), 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) [2023-12-21 18:09:50,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:09:50,490 INFO L93 Difference]: Finished difference Result 569 states and 678 transitions. [2023-12-21 18:09:50,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-12-21 18:09:50,491 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.5) internal successors, (126), 28 states have internal predecessors, (126), 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 95 [2023-12-21 18:09:50,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:09:50,492 INFO L225 Difference]: With dead ends: 569 [2023-12-21 18:09:50,492 INFO L226 Difference]: Without dead ends: 523 [2023-12-21 18:09:50,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1912 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1844, Invalid=4636, Unknown=0, NotChecked=0, Total=6480 [2023-12-21 18:09:50,495 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 1018 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-21 18:09:50,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1018 Valid, 1012 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-21 18:09:50,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-12-21 18:09:50,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 145. [2023-12-21 18:09:50,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.1666666666666667) internal successors, (168), 144 states have internal predecessors, (168), 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) [2023-12-21 18:09:50,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 168 transitions. [2023-12-21 18:09:50,516 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 168 transitions. Word has length 95 [2023-12-21 18:09:50,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:09:50,516 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 168 transitions. [2023-12-21 18:09:50,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.5) internal successors, (126), 28 states have internal predecessors, (126), 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) [2023-12-21 18:09:50,516 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 168 transitions. [2023-12-21 18:09:50,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 18:09:50,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:09:50,520 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:09:50,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-21 18:09:50,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 18:09:50,727 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:09:50,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:09:50,727 INFO L85 PathProgramCache]: Analyzing trace with hash -617606193, now seen corresponding path program 1 times [2023-12-21 18:09:50,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:09:50,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241856053] [2023-12-21 18:09:50,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:09:50,727 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 [2023-12-21 18:09:50,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:09:50,728 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2023-12-21 18:09:50,729 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 (14)] Waiting until timeout for monitored process [2023-12-21 18:09:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:09:50,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-21 18:09:50,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:09:51,396 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-21 18:09:51,396 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:09:52,498 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-21 18:09:52,499 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:09:52,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241856053] [2023-12-21 18:09:52,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241856053] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:09:52,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:09:52,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 37 [2023-12-21 18:09:52,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267886376] [2023-12-21 18:09:52,499 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:09:52,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-21 18:09:52,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:09:52,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-21 18:09:52,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=1009, Unknown=0, NotChecked=0, Total=1406 [2023-12-21 18:09:52,501 INFO L87 Difference]: Start difference. First operand 145 states and 168 transitions. Second operand has 38 states, 38 states have (on average 4.631578947368421) internal successors, (176), 37 states have internal predecessors, (176), 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) [2023-12-21 18:09:57,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:09:57,856 INFO L93 Difference]: Finished difference Result 813 states and 987 transitions. [2023-12-21 18:09:57,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-21 18:09:57,856 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 4.631578947368421) internal successors, (176), 37 states have internal predecessors, (176), 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 95 [2023-12-21 18:09:57,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:09:57,859 INFO L225 Difference]: With dead ends: 813 [2023-12-21 18:09:57,859 INFO L226 Difference]: Without dead ends: 755 [2023-12-21 18:09:57,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1043, Invalid=1927, Unknown=0, NotChecked=0, Total=2970 [2023-12-21 18:09:57,860 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 3484 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 2241 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3484 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 2583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 2241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-21 18:09:57,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3484 Valid, 1850 Invalid, 2583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 2241 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-21 18:09:57,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2023-12-21 18:09:57,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 202. [2023-12-21 18:09:57,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 1.1940298507462686) internal successors, (240), 201 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) [2023-12-21 18:09:57,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 240 transitions. [2023-12-21 18:09:57,878 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 240 transitions. Word has length 95 [2023-12-21 18:09:57,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:09:57,878 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 240 transitions. [2023-12-21 18:09:57,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 4.631578947368421) internal successors, (176), 37 states have internal predecessors, (176), 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) [2023-12-21 18:09:57,878 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 240 transitions. [2023-12-21 18:09:57,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-21 18:09:57,880 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:09:57,880 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 17, 17, 17, 17, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:09:57,913 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 (14)] Ended with exit code 0 [2023-12-21 18:09:58,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /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 [2023-12-21 18:09:58,085 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:09:58,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:09:58,085 INFO L85 PathProgramCache]: Analyzing trace with hash 879091955, now seen corresponding path program 2 times [2023-12-21 18:09:58,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:09:58,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491971907] [2023-12-21 18:09:58,086 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 18:09:58,086 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 [2023-12-21 18:09:58,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:09:58,087 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2023-12-21 18:09:58,088 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 (15)] Waiting until timeout for monitored process [2023-12-21 18:09:59,228 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 18:09:59,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:09:59,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-21 18:09:59,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:09:59,795 INFO L134 CoverageAnalysis]: Checked inductivity of 2843 backedges. 1461 proven. 714 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2023-12-21 18:09:59,795 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:10:11,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2843 backedges. 1461 proven. 714 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2023-12-21 18:10:11,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:10:11,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [491971907] [2023-12-21 18:10:11,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [491971907] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:10:11,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:10:11,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2023-12-21 18:10:11,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966439959] [2023-12-21 18:10:11,853 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:10:11,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-21 18:10:11,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:10:11,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-21 18:10:11,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=438, Invalid=1122, Unknown=0, NotChecked=0, Total=1560 [2023-12-21 18:10:11,855 INFO L87 Difference]: Start difference. First operand 202 states and 240 transitions. Second operand has 40 states, 40 states have (on average 4.85) internal successors, (194), 39 states have internal predecessors, (194), 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) [2023-12-21 18:10:29,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:10:29,302 INFO L93 Difference]: Finished difference Result 917 states and 1100 transitions. [2023-12-21 18:10:29,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-12-21 18:10:29,307 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 4.85) internal successors, (194), 39 states have internal predecessors, (194), 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 185 [2023-12-21 18:10:29,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:10:29,310 INFO L225 Difference]: With dead ends: 917 [2023-12-21 18:10:29,310 INFO L226 Difference]: Without dead ends: 807 [2023-12-21 18:10:29,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 21.8s TimeCoverageRelationStatistics Valid=1158, Invalid=2148, Unknown=0, NotChecked=0, Total=3306 [2023-12-21 18:10:29,312 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 2860 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 2487 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2860 SdHoareTripleChecker+Valid, 2068 SdHoareTripleChecker+Invalid, 2799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 2487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-21 18:10:29,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2860 Valid, 2068 Invalid, 2799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 2487 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-21 18:10:29,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2023-12-21 18:10:29,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 203. [2023-12-21 18:10:29,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 202 states have (on average 1.099009900990099) internal successors, (222), 202 states have internal predecessors, (222), 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) [2023-12-21 18:10:29,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 222 transitions. [2023-12-21 18:10:29,334 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 222 transitions. Word has length 185 [2023-12-21 18:10:29,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:10:29,334 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 222 transitions. [2023-12-21 18:10:29,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 4.85) internal successors, (194), 39 states have internal predecessors, (194), 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) [2023-12-21 18:10:29,335 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 222 transitions. [2023-12-21 18:10:29,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-21 18:10:29,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:10:29,336 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 36, 22, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:10:29,384 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 (15)] Forceful destruction successful, exit code 0 [2023-12-21 18:10:29,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /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 [2023-12-21 18:10:29,540 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:10:29,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:10:29,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1357478961, now seen corresponding path program 2 times [2023-12-21 18:10:29,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:10:29,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848486430] [2023-12-21 18:10:29,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 18:10:29,541 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 [2023-12-21 18:10:29,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:10:29,542 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2023-12-21 18:10:29,545 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 (16)] Waiting until timeout for monitored process [2023-12-21 18:10:30,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 18:10:30,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:10:30,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-21 18:10:30,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:10:30,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-21 18:10:30,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 1527 proven. 1243 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 18:10:30,531 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:10:31,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 1527 proven. 1243 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 18:10:31,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:10:31,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848486430] [2023-12-21 18:10:31,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848486430] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:10:31,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:10:31,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2023-12-21 18:10:31,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134433838] [2023-12-21 18:10:31,479 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:10:31,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-12-21 18:10:31,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:10:31,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-12-21 18:10:31,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=656, Invalid=1996, Unknown=0, NotChecked=0, Total=2652 [2023-12-21 18:10:31,482 INFO L87 Difference]: Start difference. First operand 203 states and 222 transitions. Second operand has 52 states, 52 states have (on average 4.730769230769231) internal successors, (246), 52 states have internal predecessors, (246), 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) [2023-12-21 18:10:46,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:10:46,494 INFO L93 Difference]: Finished difference Result 1153 states and 1366 transitions. [2023-12-21 18:10:46,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2023-12-21 18:10:46,495 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 4.730769230769231) internal successors, (246), 52 states have internal predecessors, (246), 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 195 [2023-12-21 18:10:46,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:10:46,498 INFO L225 Difference]: With dead ends: 1153 [2023-12-21 18:10:46,498 INFO L226 Difference]: Without dead ends: 1067 [2023-12-21 18:10:46,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8680 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=7574, Invalid=19486, Unknown=0, NotChecked=0, Total=27060 [2023-12-21 18:10:46,503 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 4259 mSDsluCounter, 3470 mSDsCounter, 0 mSdLazyCounter, 4251 mSolverCounterSat, 775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4259 SdHoareTripleChecker+Valid, 3610 SdHoareTripleChecker+Invalid, 5026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 775 IncrementalHoareTripleChecker+Valid, 4251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-12-21 18:10:46,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4259 Valid, 3610 Invalid, 5026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [775 Valid, 4251 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-12-21 18:10:46,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2023-12-21 18:10:46,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 273. [2023-12-21 18:10:46,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 272 states have (on average 1.1323529411764706) internal successors, (308), 272 states have internal predecessors, (308), 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) [2023-12-21 18:10:46,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 308 transitions. [2023-12-21 18:10:46,534 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 308 transitions. Word has length 195 [2023-12-21 18:10:46,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:10:46,534 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 308 transitions. [2023-12-21 18:10:46,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 4.730769230769231) internal successors, (246), 52 states have internal predecessors, (246), 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) [2023-12-21 18:10:46,534 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 308 transitions. [2023-12-21 18:10:46,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-21 18:10:46,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:10:46,535 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 36, 36, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:10:46,546 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 (16)] Forceful destruction successful, exit code 0 [2023-12-21 18:10:46,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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 [2023-12-21 18:10:46,746 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:10:46,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:10:46,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1647489807, now seen corresponding path program 2 times [2023-12-21 18:10:46,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:10:46,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [218973486] [2023-12-21 18:10:46,747 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 18:10:46,747 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 [2023-12-21 18:10:46,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:10:46,765 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2023-12-21 18:10:46,813 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 (17)] Waiting until timeout for monitored process [2023-12-21 18:10:47,513 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 18:10:47,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:10:47,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-21 18:10:47,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:10:48,790 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 0 proven. 3186 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-21 18:10:48,790 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:10:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 0 proven. 3186 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-21 18:10:53,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:10:53,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [218973486] [2023-12-21 18:10:53,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [218973486] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:10:53,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:10:53,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 77 [2023-12-21 18:10:53,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795576177] [2023-12-21 18:10:53,757 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:10:53,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2023-12-21 18:10:53,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:10:53,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2023-12-21 18:10:53,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1597, Invalid=4409, Unknown=0, NotChecked=0, Total=6006 [2023-12-21 18:10:53,760 INFO L87 Difference]: Start difference. First operand 273 states and 308 transitions. Second operand has 78 states, 78 states have (on average 4.82051282051282) internal successors, (376), 77 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:11:37,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:11:37,777 INFO L93 Difference]: Finished difference Result 1729 states and 2095 transitions. [2023-12-21 18:11:37,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2023-12-21 18:11:37,778 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 4.82051282051282) internal successors, (376), 77 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2023-12-21 18:11:37,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:11:37,781 INFO L225 Difference]: With dead ends: 1729 [2023-12-21 18:11:37,781 INFO L226 Difference]: Without dead ends: 1643 [2023-12-21 18:11:37,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2109 ImplicationChecksByTransitivity, 32.2s TimeCoverageRelationStatistics Valid=4483, Invalid=8627, Unknown=0, NotChecked=0, Total=13110 [2023-12-21 18:11:37,784 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 12539 mSDsluCounter, 8246 mSDsCounter, 0 mSdLazyCounter, 10061 mSolverCounterSat, 1487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12539 SdHoareTripleChecker+Valid, 8470 SdHoareTripleChecker+Invalid, 11548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1487 IncrementalHoareTripleChecker+Valid, 10061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2023-12-21 18:11:37,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12539 Valid, 8470 Invalid, 11548 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1487 Valid, 10061 Invalid, 0 Unknown, 0 Unchecked, 15.5s Time] [2023-12-21 18:11:37,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2023-12-21 18:11:37,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 410. [2023-12-21 18:11:37,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 409 states have (on average 1.1931540342298288) internal successors, (488), 409 states have internal predecessors, (488), 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) [2023-12-21 18:11:37,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 488 transitions. [2023-12-21 18:11:37,822 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 488 transitions. Word has length 195 [2023-12-21 18:11:37,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:11:37,823 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 488 transitions. [2023-12-21 18:11:37,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 4.82051282051282) internal successors, (376), 77 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 18:11:37,823 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 488 transitions. [2023-12-21 18:11:37,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-21 18:11:37,825 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:11:37,825 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 37, 37, 37, 37, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:11:37,836 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 (17)] Forceful destruction successful, exit code 0 [2023-12-21 18:11:38,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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 [2023-12-21 18:11:38,035 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:11:38,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:11:38,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1491499405, now seen corresponding path program 3 times [2023-12-21 18:11:38,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:11:38,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012309448] [2023-12-21 18:11:38,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-21 18:11:38,036 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 [2023-12-21 18:11:38,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:11:38,037 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2023-12-21 18:11:38,040 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 (18)] Waiting until timeout for monitored process [2023-12-21 18:11:38,320 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-21 18:11:38,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:11:38,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-21 18:11:38,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:11:40,205 INFO L134 CoverageAnalysis]: Checked inductivity of 13583 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 13579 trivial. 0 not checked. [2023-12-21 18:11:40,205 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:11:56,869 INFO L134 CoverageAnalysis]: Checked inductivity of 13583 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 13579 trivial. 0 not checked. [2023-12-21 18:11:56,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:11:56,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012309448] [2023-12-21 18:11:56,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012309448] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:11:56,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:11:56,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-21 18:11:56,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009430121] [2023-12-21 18:11:56,870 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:11:56,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 18:11:56,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:11:56,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 18:11:56,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-21 18:11:56,871 INFO L87 Difference]: Start difference. First operand 410 states and 488 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 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) [2023-12-21 18:11:58,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:11:58,769 INFO L93 Difference]: Finished difference Result 432 states and 517 transitions. [2023-12-21 18:11:58,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 18:11:58,774 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 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 385 [2023-12-21 18:11:58,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:11:58,776 INFO L225 Difference]: With dead ends: 432 [2023-12-21 18:11:58,776 INFO L226 Difference]: Without dead ends: 430 [2023-12-21 18:11:58,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 776 GetRequests, 760 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2023-12-21 18:11:58,777 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 53 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 18:11:58,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 55 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 18:11:58,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2023-12-21 18:11:58,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2023-12-21 18:11:58,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 429 states have (on average 1.1934731934731935) internal successors, (512), 429 states have internal predecessors, (512), 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) [2023-12-21 18:11:58,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 512 transitions. [2023-12-21 18:11:58,842 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 512 transitions. Word has length 385 [2023-12-21 18:11:58,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:11:58,842 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 512 transitions. [2023-12-21 18:11:58,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 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) [2023-12-21 18:11:58,843 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 512 transitions. [2023-12-21 18:11:58,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2023-12-21 18:11:58,845 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:11:58,845 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 37, 37, 37, 37, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:11:58,852 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 (18)] Forceful destruction successful, exit code 0 [2023-12-21 18:11:59,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 [2023-12-21 18:11:59,046 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:11:59,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:11:59,046 INFO L85 PathProgramCache]: Analyzing trace with hash 538727411, now seen corresponding path program 4 times [2023-12-21 18:11:59,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:11:59,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868542516] [2023-12-21 18:11:59,047 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-21 18:11:59,047 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 [2023-12-21 18:11:59,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:11:59,048 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2023-12-21 18:11:59,049 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 (19)] Waiting until timeout for monitored process [2023-12-21 18:12:02,439 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-21 18:12:02,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:12:02,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-21 18:12:02,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:12:04,060 INFO L134 CoverageAnalysis]: Checked inductivity of 13649 backedges. 6881 proven. 3404 refuted. 0 times theorem prover too weak. 3364 trivial. 0 not checked. [2023-12-21 18:12:04,061 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:12:53,411 INFO L134 CoverageAnalysis]: Checked inductivity of 13649 backedges. 6881 proven. 3404 refuted. 0 times theorem prover too weak. 3364 trivial. 0 not checked. [2023-12-21 18:12:53,411 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:12:53,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868542516] [2023-12-21 18:12:53,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868542516] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:12:53,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:12:53,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 79 [2023-12-21 18:12:53,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365670338] [2023-12-21 18:12:53,412 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:12:53,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2023-12-21 18:12:53,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:12:53,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2023-12-21 18:12:53,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1678, Invalid=4642, Unknown=0, NotChecked=0, Total=6320 [2023-12-21 18:12:53,415 INFO L87 Difference]: Start difference. First operand 430 states and 512 transitions. Second operand has 80 states, 80 states have (on average 4.925) internal successors, (394), 79 states have internal predecessors, (394), 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) [2023-12-21 18:14:36,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:14:36,783 INFO L93 Difference]: Finished difference Result 3379 states and 4052 transitions. [2023-12-21 18:14:36,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2023-12-21 18:14:36,795 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 80 states have (on average 4.925) internal successors, (394), 79 states have internal predecessors, (394), 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 405 [2023-12-21 18:14:36,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:14:36,804 INFO L225 Difference]: With dead ends: 3379 [2023-12-21 18:14:36,804 INFO L226 Difference]: Without dead ends: 3141 [2023-12-21 18:14:36,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 846 GetRequests, 730 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2223 ImplicationChecksByTransitivity, 128.8s TimeCoverageRelationStatistics Valid=4718, Invalid=9088, Unknown=0, NotChecked=0, Total=13806 [2023-12-21 18:14:36,809 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 11044 mSDsluCounter, 8375 mSDsCounter, 0 mSdLazyCounter, 10570 mSolverCounterSat, 1439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11044 SdHoareTripleChecker+Valid, 8597 SdHoareTripleChecker+Invalid, 12009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1439 IncrementalHoareTripleChecker+Valid, 10570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-12-21 18:14:36,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11044 Valid, 8597 Invalid, 12009 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1439 Valid, 10570 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2023-12-21 18:14:36,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2023-12-21 18:14:36,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 423. [2023-12-21 18:14:36,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 422 states have (on average 1.09478672985782) internal successors, (462), 422 states have internal predecessors, (462), 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) [2023-12-21 18:14:36,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 462 transitions. [2023-12-21 18:14:36,892 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 462 transitions. Word has length 405 [2023-12-21 18:14:36,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:14:36,892 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 462 transitions. [2023-12-21 18:14:36,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 4.925) internal successors, (394), 79 states have internal predecessors, (394), 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) [2023-12-21 18:14:36,893 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 462 transitions. [2023-12-21 18:14:36,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2023-12-21 18:14:36,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:14:36,895 INFO L195 NwaCegarLoop]: trace histogram [76, 76, 76, 76, 46, 30, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:14:36,998 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 (19)] Ended with exit code 0 [2023-12-21 18:14:37,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 [2023-12-21 18:14:37,108 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:14:37,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:14:37,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1424411697, now seen corresponding path program 3 times [2023-12-21 18:14:37,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:14:37,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1317427139] [2023-12-21 18:14:37,109 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-21 18:14:37,109 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 [2023-12-21 18:14:37,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:14:37,110 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2023-12-21 18:14:37,112 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 (20)] Waiting until timeout for monitored process [2023-12-21 18:14:37,406 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-21 18:14:37,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:14:37,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 18:14:37,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:14:37,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-12-21 18:14:37,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 9 [2023-12-21 18:14:37,930 INFO L134 CoverageAnalysis]: Checked inductivity of 14396 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 14020 trivial. 0 not checked. [2023-12-21 18:14:37,930 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 18:14:37,931 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:14:37,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1317427139] [2023-12-21 18:14:37,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1317427139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 18:14:37,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 18:14:37,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 18:14:37,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277692650] [2023-12-21 18:14:37,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 18:14:37,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 18:14:37,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:14:37,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 18:14:37,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 18:14:37,932 INFO L87 Difference]: Start difference. First operand 423 states and 462 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 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) [2023-12-21 18:14:38,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:14:38,348 INFO L93 Difference]: Finished difference Result 792 states and 901 transitions. [2023-12-21 18:14:38,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 18:14:38,354 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 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 415 [2023-12-21 18:14:38,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:14:38,356 INFO L225 Difference]: With dead ends: 792 [2023-12-21 18:14:38,356 INFO L226 Difference]: Without dead ends: 611 [2023-12-21 18:14:38,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-12-21 18:14:38,357 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 25 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 18:14:38,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 35 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 18:14:38,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2023-12-21 18:14:38,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 570. [2023-12-21 18:14:38,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 569 states have (on average 1.0720562390158173) internal successors, (610), 569 states have internal predecessors, (610), 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) [2023-12-21 18:14:38,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 610 transitions. [2023-12-21 18:14:38,429 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 610 transitions. Word has length 415 [2023-12-21 18:14:38,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:14:38,430 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 610 transitions. [2023-12-21 18:14:38,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 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) [2023-12-21 18:14:38,430 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 610 transitions. [2023-12-21 18:14:38,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2023-12-21 18:14:38,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:14:38,432 INFO L195 NwaCegarLoop]: trace histogram [76, 76, 76, 76, 61, 15, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:14:38,439 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 (20)] Ended with exit code 0 [2023-12-21 18:14:38,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 [2023-12-21 18:14:38,637 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:14:38,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:14:38,638 INFO L85 PathProgramCache]: Analyzing trace with hash 975429105, now seen corresponding path program 4 times [2023-12-21 18:14:38,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:14:38,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888687251] [2023-12-21 18:14:38,638 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-21 18:14:38,638 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 [2023-12-21 18:14:38,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:14:38,639 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2023-12-21 18:14:38,640 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 (21)] Waiting until timeout for monitored process [2023-12-21 18:14:39,563 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-21 18:14:39,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:14:39,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 52 conjunts are in the unsatisfiable core [2023-12-21 18:14:39,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:14:40,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-21 18:14:40,844 INFO L134 CoverageAnalysis]: Checked inductivity of 14396 backedges. 6879 proven. 5359 refuted. 0 times theorem prover too weak. 2158 trivial. 0 not checked. [2023-12-21 18:14:40,844 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:14:43,706 INFO L134 CoverageAnalysis]: Checked inductivity of 14396 backedges. 6879 proven. 5359 refuted. 0 times theorem prover too weak. 2158 trivial. 0 not checked. [2023-12-21 18:14:43,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:14:43,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888687251] [2023-12-21 18:14:43,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888687251] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:14:43,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:14:43,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 100 [2023-12-21 18:14:43,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165130500] [2023-12-21 18:14:43,706 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:14:43,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2023-12-21 18:14:43,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:14:43,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2023-12-21 18:14:43,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2456, Invalid=7444, Unknown=0, NotChecked=0, Total=9900 [2023-12-21 18:14:43,709 INFO L87 Difference]: Start difference. First operand 570 states and 610 transitions. Second operand has 100 states, 100 states have (on average 4.87) internal successors, (487), 100 states have internal predecessors, (487), 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) [2023-12-21 18:15:42,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:15:42,212 INFO L93 Difference]: Finished difference Result 4304 states and 5092 transitions. [2023-12-21 18:15:42,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 284 states. [2023-12-21 18:15:42,213 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 4.87) internal successors, (487), 100 states have internal predecessors, (487), 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 415 [2023-12-21 18:15:42,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:15:42,221 INFO L225 Difference]: With dead ends: 4304 [2023-12-21 18:15:42,221 INFO L226 Difference]: Without dead ends: 3976 [2023-12-21 18:15:42,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1061 GetRequests, 730 SyntacticMatches, 0 SemanticMatches, 331 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36904 ImplicationChecksByTransitivity, 43.6s TimeCoverageRelationStatistics Valid=30698, Invalid=79858, Unknown=0, NotChecked=0, Total=110556 [2023-12-21 18:15:42,229 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 16880 mSDsluCounter, 13730 mSDsCounter, 0 mSdLazyCounter, 16876 mSolverCounterSat, 2932 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16880 SdHoareTripleChecker+Valid, 14006 SdHoareTripleChecker+Invalid, 19808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2932 IncrementalHoareTripleChecker+Valid, 16876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2023-12-21 18:15:42,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16880 Valid, 14006 Invalid, 19808 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2932 Valid, 16876 Invalid, 0 Unknown, 0 Unchecked, 14.0s Time] [2023-12-21 18:15:42,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3976 states. [2023-12-21 18:15:42,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3976 to 554. [2023-12-21 18:15:42,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 553 states have (on average 1.1175406871609403) internal successors, (618), 553 states have internal predecessors, (618), 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) [2023-12-21 18:15:42,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 618 transitions. [2023-12-21 18:15:42,361 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 618 transitions. Word has length 415 [2023-12-21 18:15:42,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:15:42,362 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 618 transitions. [2023-12-21 18:15:42,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 4.87) internal successors, (487), 100 states have internal predecessors, (487), 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) [2023-12-21 18:15:42,362 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 618 transitions. [2023-12-21 18:15:42,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2023-12-21 18:15:42,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:15:42,364 INFO L195 NwaCegarLoop]: trace histogram [76, 76, 76, 76, 76, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:15:42,380 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 (21)] Forceful destruction successful, exit code 0 [2023-12-21 18:15:42,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 [2023-12-21 18:15:42,577 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:15:42,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:15:42,578 INFO L85 PathProgramCache]: Analyzing trace with hash -751290097, now seen corresponding path program 3 times [2023-12-21 18:15:42,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:15:42,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153474325] [2023-12-21 18:15:42,578 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-21 18:15:42,578 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 [2023-12-21 18:15:42,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:15:42,579 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2023-12-21 18:15:42,580 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 (22)] Waiting until timeout for monitored process [2023-12-21 18:15:42,810 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-21 18:15:42,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:15:42,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-21 18:15:42,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:15:45,174 INFO L134 CoverageAnalysis]: Checked inductivity of 14396 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 14095 trivial. 0 not checked. [2023-12-21 18:15:45,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:16:07,645 INFO L134 CoverageAnalysis]: Checked inductivity of 14396 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 14095 trivial. 0 not checked. [2023-12-21 18:16:07,646 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:16:07,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153474325] [2023-12-21 18:16:07,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153474325] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:16:07,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:16:07,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-21 18:16:07,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860208437] [2023-12-21 18:16:07,646 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:16:07,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 18:16:07,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:16:07,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 18:16:07,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-21 18:16:07,647 INFO L87 Difference]: Start difference. First operand 554 states and 618 transitions. Second operand has 10 states, 10 states have (on average 3.4) internal successors, (34), 9 states have internal predecessors, (34), 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) [2023-12-21 18:16:10,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:16:10,163 INFO L93 Difference]: Finished difference Result 1375 states and 1759 transitions. [2023-12-21 18:16:10,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-21 18:16:10,163 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 9 states have internal predecessors, (34), 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 415 [2023-12-21 18:16:10,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:16:10,167 INFO L225 Difference]: With dead ends: 1375 [2023-12-21 18:16:10,167 INFO L226 Difference]: Without dead ends: 1337 [2023-12-21 18:16:10,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 838 GetRequests, 820 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2023-12-21 18:16:10,168 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 131 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-21 18:16:10,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 114 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-21 18:16:10,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2023-12-21 18:16:10,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1152. [2023-12-21 18:16:10,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 1151 states have (on average 1.217202432667246) internal successors, (1401), 1151 states have internal predecessors, (1401), 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) [2023-12-21 18:16:10,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1401 transitions. [2023-12-21 18:16:10,342 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1401 transitions. Word has length 415 [2023-12-21 18:16:10,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:16:10,342 INFO L495 AbstractCegarLoop]: Abstraction has 1152 states and 1401 transitions. [2023-12-21 18:16:10,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 9 states have internal predecessors, (34), 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) [2023-12-21 18:16:10,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1401 transitions. [2023-12-21 18:16:10,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2023-12-21 18:16:10,345 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:16:10,345 INFO L195 NwaCegarLoop]: trace histogram [79, 79, 79, 76, 76, 6, 6, 6, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:16:10,352 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 (22)] Forceful destruction successful, exit code 0 [2023-12-21 18:16:10,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 [2023-12-21 18:16:10,550 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:16:10,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:16:10,550 INFO L85 PathProgramCache]: Analyzing trace with hash -610702376, now seen corresponding path program 5 times [2023-12-21 18:16:10,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:16:10,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638551274] [2023-12-21 18:16:10,551 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-21 18:16:10,551 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 [2023-12-21 18:16:10,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:16:10,552 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2023-12-21 18:16:10,552 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 (23)] Waiting until timeout for monitored process [2023-12-21 18:16:14,046 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 80 check-sat command(s) [2023-12-21 18:16:14,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:16:14,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 80 conjunts are in the unsatisfiable core [2023-12-21 18:16:14,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:16:17,639 INFO L134 CoverageAnalysis]: Checked inductivity of 15554 backedges. 1069 proven. 14402 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-21 18:16:17,639 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:19:28,954 INFO L134 CoverageAnalysis]: Checked inductivity of 15554 backedges. 1069 proven. 14402 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-21 18:19:28,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:19:28,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638551274] [2023-12-21 18:19:28,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1638551274] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:19:28,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:19:28,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 80] total 158 [2023-12-21 18:19:28,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171541123] [2023-12-21 18:19:28,955 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:19:28,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 159 states [2023-12-21 18:19:28,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:19:28,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 159 interpolants. [2023-12-21 18:19:28,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6477, Invalid=18645, Unknown=0, NotChecked=0, Total=25122 [2023-12-21 18:19:28,960 INFO L87 Difference]: Start difference. First operand 1152 states and 1401 transitions. Second operand has 159 states, 159 states have (on average 4.930817610062893) internal successors, (784), 158 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-21 18:23:56,956 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 (23)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 18:23:56,957 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 [2023-12-21 18:23:56,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2023-12-21 18:23:56,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 886 GetRequests, 701 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6588 ImplicationChecksByTransitivity, 421.8s TimeCoverageRelationStatistics Valid=10770, Invalid=23640, Unknown=0, NotChecked=0, Total=34410 [2023-12-21 18:23:56,990 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 934 mSDsluCounter, 5995 mSDsCounter, 0 mSdLazyCounter, 23977 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 6075 SdHoareTripleChecker+Invalid, 24012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 23977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2023-12-21 18:23:56,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 6075 Invalid, 24012 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 23977 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2023-12-21 18:23:56,991 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 18:23:57,010 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 (23)] Forceful destruction successful, exit code 0 [2023-12-21 18:23:57,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 [2023-12-21 18:23:57,193 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (1152states) and FLOYD_HOARE automaton (currently 107 states, 159 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 186 known predicates. [2023-12-21 18:23:57,197 INFO L445 BasicCegarLoop]: Path program histogram: [5, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2023-12-21 18:23:57,199 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 18:23:57,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 06:23:57 BoogieIcfgContainer [2023-12-21 18:23:57,203 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 18:23:57,204 INFO L158 Benchmark]: Toolchain (without parser) took 867240.41ms. Allocated memory was 253.8MB in the beginning and 761.3MB in the end (delta: 507.5MB). Free memory was 212.6MB in the beginning and 236.8MB in the end (delta: -24.2MB). Peak memory consumption was 484.1MB. Max. memory is 8.0GB. [2023-12-21 18:23:57,204 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 18:23:57,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.70ms. Allocated memory is still 253.8MB. Free memory was 212.1MB in the beginning and 200.6MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-21 18:23:57,205 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.58ms. Allocated memory is still 253.8MB. Free memory was 200.6MB in the beginning and 199.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 18:23:57,207 INFO L158 Benchmark]: Boogie Preprocessor took 28.66ms. Allocated memory is still 253.8MB. Free memory was 199.0MB in the beginning and 196.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 18:23:57,208 INFO L158 Benchmark]: RCFGBuilder took 373.79ms. Allocated memory is still 253.8MB. Free memory was 196.9MB in the beginning and 182.8MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-21 18:23:57,209 INFO L158 Benchmark]: TraceAbstraction took 866634.45ms. Allocated memory was 253.8MB in the beginning and 761.3MB in the end (delta: 507.5MB). Free memory was 182.2MB in the beginning and 236.8MB in the end (delta: -54.6MB). Peak memory consumption was 453.7MB. Max. memory is 8.0GB. [2023-12-21 18:23:57,210 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 166.70ms. Allocated memory is still 253.8MB. Free memory was 212.1MB in the beginning and 200.6MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.58ms. Allocated memory is still 253.8MB. Free memory was 200.6MB in the beginning and 199.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.66ms. Allocated memory is still 253.8MB. Free memory was 199.0MB in the beginning and 196.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 373.79ms. Allocated memory is still 253.8MB. Free memory was 196.9MB in the beginning and 182.8MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 866634.45ms. Allocated memory was 253.8MB in the beginning and 761.3MB in the end (delta: 507.5MB). Free memory was 182.2MB in the beginning and 236.8MB in the end (delta: -54.6MB). Peak memory consumption was 453.7MB. 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: 4]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 4). Cancelled while NwaCegarLoop was constructing difference of abstraction (1152states) and FLOYD_HOARE automaton (currently 107 states, 159 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 186 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 866.6s, OverallIterations: 22, TraceHistogramMax: 79, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 526.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55680 SdHoareTripleChecker+Valid, 79.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 55680 mSDsluCounter, 47315 SdHoareTripleChecker+Invalid, 68.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45802 mSDsCounter, 7748 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73684 IncrementalHoareTripleChecker+Invalid, 81432 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7748 mSolverCounterUnsat, 1513 mSDtfsCounter, 73684 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7246 GetRequests, 5972 SyntacticMatches, 0 SemanticMatches, 1273 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60110 ImplicationChecksByTransitivity, 670.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1152occurred in iteration=21, InterpolantAutomatonStates: 885, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 21 MinimizatonAttempts, 10623 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 11.6s SatisfiabilityAnalysisTime, 321.5s InterpolantComputationTime, 3615 NumberOfCodeBlocks, 2380 NumberOfCodeBlocksAsserted, 108 NumberOfCheckSat, 6632 ConstructedInterpolants, 379 QuantifiedInterpolants, 45964 SizeOfPredicates, 50 NumberOfNonLiveVariables, 4823 ConjunctsInSsa, 390 ConjunctsInUnsatCore, 38 InterpolantComputations, 6 PerfectInterpolantSequences, 120882/180390 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