/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:29:10,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:29:10,307 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 08:29:10,312 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:29:10,312 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:29:10,334 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:29:10,335 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:29:10,335 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:29:10,335 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:29:10,338 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:29:10,338 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:29:10,338 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:29:10,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:29:10,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:29:10,340 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:29:10,340 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:29:10,340 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:29:10,340 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:29:10,341 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:29:10,341 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:29:10,342 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:29:10,342 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:29:10,342 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:29:10,342 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:29:10,342 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:29:10,342 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:29:10,343 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:29:10,343 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:29:10,343 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:29:10,343 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:29:10,344 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:29:10,344 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:29:10,344 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:29:10,344 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:29:10,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:29:10,344 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:29:10,344 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:29:10,344 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:29:10,344 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:29:10,345 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:29:10,345 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:29:10,345 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:29:10,345 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:29:10,345 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:29:10,345 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:29:10,345 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:29:10,346 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:29:10,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:29:10,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:29:10,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:29:10,532 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:29:10,532 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:29:10,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label45.c [2023-12-16 08:29:11,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:29:11,799 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:29:11,800 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label45.c [2023-12-16 08:29:11,815 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d485ea3a/4486a5a9de724caf8575d8c2d72832b7/FLAG9a9e1b415 [2023-12-16 08:29:12,106 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d485ea3a/4486a5a9de724caf8575d8c2d72832b7 [2023-12-16 08:29:12,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:29:12,109 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:29:12,110 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:29:12,110 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:29:12,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:29:12,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:29:12" (1/1) ... [2023-12-16 08:29:12,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bbbfe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:12, skipping insertion in model container [2023-12-16 08:29:12,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:29:12" (1/1) ... [2023-12-16 08:29:12,189 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:29:12,639 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label45.c[53653,53666] [2023-12-16 08:29:12,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:29:12,696 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:29:12,852 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label45.c[53653,53666] [2023-12-16 08:29:12,864 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:29:12,876 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:29:12,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:12 WrapperNode [2023-12-16 08:29:12,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:29:12,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:29:12,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:29:12,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:29:12,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:12" (1/1) ... [2023-12-16 08:29:12,909 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:12" (1/1) ... [2023-12-16 08:29:12,968 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1770 [2023-12-16 08:29:12,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:29:12,969 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:29:12,969 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:29:12,970 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:29:12,977 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:12" (1/1) ... [2023-12-16 08:29:12,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:12" (1/1) ... [2023-12-16 08:29:12,990 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:12" (1/1) ... [2023-12-16 08:29:13,015 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 08:29:13,015 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:12" (1/1) ... [2023-12-16 08:29:13,015 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:12" (1/1) ... [2023-12-16 08:29:13,042 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:12" (1/1) ... [2023-12-16 08:29:13,049 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:12" (1/1) ... [2023-12-16 08:29:13,061 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:12" (1/1) ... [2023-12-16 08:29:13,070 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:12" (1/1) ... [2023-12-16 08:29:13,080 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:29:13,080 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:29:13,080 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:29:13,080 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:29:13,081 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:12" (1/1) ... [2023-12-16 08:29:13,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:29:13,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:29:13,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 08:29:13,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 08:29:13,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:29:13,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:29:13,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:29:13,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:29:13,186 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:29:13,188 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:29:14,775 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:29:14,833 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:29:14,833 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 08:29:14,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:29:14 BoogieIcfgContainer [2023-12-16 08:29:14,834 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:29:14,835 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:29:14,835 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:29:14,837 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:29:14,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:29:12" (1/3) ... [2023-12-16 08:29:14,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6740177c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:29:14, skipping insertion in model container [2023-12-16 08:29:14,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:12" (2/3) ... [2023-12-16 08:29:14,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6740177c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:29:14, skipping insertion in model container [2023-12-16 08:29:14,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:29:14" (3/3) ... [2023-12-16 08:29:14,839 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label45.c [2023-12-16 08:29:14,852 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:29:14,852 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 08:29:14,896 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:29:14,901 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;@1b08e9db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:29:14,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 08:29:14,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 238 states have (on average 1.9201680672268908) internal successors, (457), 239 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:14,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 08:29:14,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:14,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:29:14,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:14,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:14,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1289740576, now seen corresponding path program 1 times [2023-12-16 08:29:14,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:14,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662234385] [2023-12-16 08:29:14,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:14,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:29:14,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:14,945 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:29:14,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 08:29:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:15,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-16 08:29:15,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:32,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:29:32,108 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:32,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:32,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662234385] [2023-12-16 08:29:32,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662234385] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:32,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:32,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 08:29:32,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453575590] [2023-12-16 08:29:32,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:32,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 08:29:32,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:32,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 08:29:32,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-16 08:29:32,147 INFO L87 Difference]: Start difference. First operand has 240 states, 238 states have (on average 1.9201680672268908) internal successors, (457), 239 states have internal predecessors, (457), 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 10 states, 10 states have (on average 14.3) internal successors, (143), 9 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:38,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:38,938 INFO L93 Difference]: Finished difference Result 1008 states and 1957 transitions. [2023-12-16 08:29:38,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 08:29:38,940 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 9 states have internal predecessors, (143), 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 143 [2023-12-16 08:29:38,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:38,951 INFO L225 Difference]: With dead ends: 1008 [2023-12-16 08:29:38,951 INFO L226 Difference]: Without dead ends: 761 [2023-12-16 08:29:38,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2023-12-16 08:29:38,956 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 1424 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 5069 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 5346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 5069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:38,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1424 Valid, 360 Invalid, 5346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 5069 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-12-16 08:29:38,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2023-12-16 08:29:39,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 761. [2023-12-16 08:29:39,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 760 states have (on average 1.3921052631578947) internal successors, (1058), 760 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:39,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 1058 transitions. [2023-12-16 08:29:39,016 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 1058 transitions. Word has length 143 [2023-12-16 08:29:39,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:39,017 INFO L495 AbstractCegarLoop]: Abstraction has 761 states and 1058 transitions. [2023-12-16 08:29:39,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 9 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:39,017 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 1058 transitions. [2023-12-16 08:29:39,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 08:29:39,020 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:39,020 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:29:39,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 08:29:39,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:29:39,223 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:39,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:39,223 INFO L85 PathProgramCache]: Analyzing trace with hash 880687567, now seen corresponding path program 1 times [2023-12-16 08:29:39,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:39,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1319730664] [2023-12-16 08:29:39,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:39,227 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:29:39,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:39,228 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:29:39,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 08:29:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:39,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-16 08:29:39,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:58,334 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:29:58,334 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:58,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:58,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1319730664] [2023-12-16 08:29:58,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1319730664] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:58,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:58,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 08:29:58,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252111112] [2023-12-16 08:29:58,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:58,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 08:29:58,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:58,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 08:29:58,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-16 08:29:58,337 INFO L87 Difference]: Start difference. First operand 761 states and 1058 transitions. Second operand has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 10 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:03,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:30:03,762 INFO L93 Difference]: Finished difference Result 1754 states and 2732 transitions. [2023-12-16 08:30:03,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 08:30:03,763 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 10 states have internal predecessors, (150), 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 150 [2023-12-16 08:30:03,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:30:03,767 INFO L225 Difference]: With dead ends: 1754 [2023-12-16 08:30:03,767 INFO L226 Difference]: Without dead ends: 1310 [2023-12-16 08:30:03,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2023-12-16 08:30:03,769 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 1378 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 4886 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 5228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 4886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-16 08:30:03,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 220 Invalid, 5228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 4886 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-16 08:30:03,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2023-12-16 08:30:03,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1106. [2023-12-16 08:30:03,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 1105 states have (on average 1.2877828054298643) internal successors, (1423), 1105 states have internal predecessors, (1423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:03,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1423 transitions. [2023-12-16 08:30:03,791 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1423 transitions. Word has length 150 [2023-12-16 08:30:03,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:30:03,791 INFO L495 AbstractCegarLoop]: Abstraction has 1106 states and 1423 transitions. [2023-12-16 08:30:03,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 10 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:03,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1423 transitions. [2023-12-16 08:30:03,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-16 08:30:03,794 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:30:03,795 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:30:03,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 08:30:03,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:04,000 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:30:04,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:30:04,001 INFO L85 PathProgramCache]: Analyzing trace with hash -144014717, now seen corresponding path program 1 times [2023-12-16 08:30:04,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:30:04,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423106833] [2023-12-16 08:30:04,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:30:04,002 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:04,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:30:04,008 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:30:04,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 08:30:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:30:04,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:30:04,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:30:04,192 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 08:30:04,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:30:04,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:30:04,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1423106833] [2023-12-16 08:30:04,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1423106833] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:30:04,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:30:04,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:30:04,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844777627] [2023-12-16 08:30:04,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:30:04,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:30:04,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:30:04,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:30:04,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:04,204 INFO L87 Difference]: Start difference. First operand 1106 states and 1423 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:05,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:30:05,138 INFO L93 Difference]: Finished difference Result 1969 states and 2834 transitions. [2023-12-16 08:30:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:30:05,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 170 [2023-12-16 08:30:05,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:30:05,143 INFO L225 Difference]: With dead ends: 1969 [2023-12-16 08:30:05,143 INFO L226 Difference]: Without dead ends: 1525 [2023-12-16 08:30:05,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:05,147 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 208 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 08:30:05,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 363 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 08:30:05,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1525 states. [2023-12-16 08:30:05,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1525 to 1521. [2023-12-16 08:30:05,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 1.3019736842105263) internal successors, (1979), 1520 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:05,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 1979 transitions. [2023-12-16 08:30:05,170 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 1979 transitions. Word has length 170 [2023-12-16 08:30:05,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:30:05,171 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 1979 transitions. [2023-12-16 08:30:05,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:05,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 1979 transitions. [2023-12-16 08:30:05,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-16 08:30:05,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:30:05,174 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:30:05,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 08:30:05,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:05,377 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:30:05,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:30:05,378 INFO L85 PathProgramCache]: Analyzing trace with hash 4825938, now seen corresponding path program 1 times [2023-12-16 08:30:05,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:30:05,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972370099] [2023-12-16 08:30:05,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:30:05,379 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:05,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:30:05,380 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:30:05,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 08:30:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:30:05,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:30:05,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:30:05,526 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 08:30:05,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:30:05,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:30:05,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972370099] [2023-12-16 08:30:05,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972370099] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:30:05,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:30:05,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:30:05,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11811898] [2023-12-16 08:30:05,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:30:05,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:30:05,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:30:05,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:30:05,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:30:05,531 INFO L87 Difference]: Start difference. First operand 1521 states and 1979 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:06,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:30:06,659 INFO L93 Difference]: Finished difference Result 3856 states and 5490 transitions. [2023-12-16 08:30:06,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:30:06,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 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 171 [2023-12-16 08:30:06,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:30:06,669 INFO L225 Difference]: With dead ends: 3856 [2023-12-16 08:30:06,670 INFO L226 Difference]: Without dead ends: 2997 [2023-12-16 08:30:06,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:30:06,675 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 658 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:30:06,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 592 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 08:30:06,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2023-12-16 08:30:06,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 2989. [2023-12-16 08:30:06,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2989 states, 2988 states have (on average 1.3765060240963856) internal successors, (4113), 2988 states have internal predecessors, (4113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:06,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2989 states to 2989 states and 4113 transitions. [2023-12-16 08:30:06,711 INFO L78 Accepts]: Start accepts. Automaton has 2989 states and 4113 transitions. Word has length 171 [2023-12-16 08:30:06,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:30:06,711 INFO L495 AbstractCegarLoop]: Abstraction has 2989 states and 4113 transitions. [2023-12-16 08:30:06,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:06,711 INFO L276 IsEmpty]: Start isEmpty. Operand 2989 states and 4113 transitions. [2023-12-16 08:30:06,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-16 08:30:06,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:30:06,714 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:30:06,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 08:30:06,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:06,917 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:30:06,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:30:06,918 INFO L85 PathProgramCache]: Analyzing trace with hash -520616413, now seen corresponding path program 1 times [2023-12-16 08:30:06,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:30:06,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435477459] [2023-12-16 08:30:06,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:30:06,919 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:06,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:30:06,920 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:30:06,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 08:30:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:30:07,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:30:07,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:30:07,084 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:30:07,084 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:30:07,085 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:30:07,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435477459] [2023-12-16 08:30:07,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [435477459] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:30:07,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:30:07,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:30:07,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68379921] [2023-12-16 08:30:07,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:30:07,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:30:07,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:30:07,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:30:07,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:07,086 INFO L87 Difference]: Start difference. First operand 2989 states and 4113 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:07,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:30:07,940 INFO L93 Difference]: Finished difference Result 7348 states and 10537 transitions. [2023-12-16 08:30:07,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:30:07,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 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 [2023-12-16 08:30:07,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:30:07,950 INFO L225 Difference]: With dead ends: 7348 [2023-12-16 08:30:07,950 INFO L226 Difference]: Without dead ends: 5019 [2023-12-16 08:30:07,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:07,953 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 180 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:30:07,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 209 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:30:07,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5019 states. [2023-12-16 08:30:07,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5019 to 5019. [2023-12-16 08:30:08,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5019 states, 5018 states have (on average 1.259465922678358) internal successors, (6320), 5018 states have internal predecessors, (6320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:08,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5019 states to 5019 states and 6320 transitions. [2023-12-16 08:30:08,010 INFO L78 Accepts]: Start accepts. Automaton has 5019 states and 6320 transitions. Word has length 185 [2023-12-16 08:30:08,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:30:08,010 INFO L495 AbstractCegarLoop]: Abstraction has 5019 states and 6320 transitions. [2023-12-16 08:30:08,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:08,010 INFO L276 IsEmpty]: Start isEmpty. Operand 5019 states and 6320 transitions. [2023-12-16 08:30:08,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-12-16 08:30:08,014 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:30:08,014 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:30:08,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 08:30:08,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:08,217 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:30:08,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:30:08,217 INFO L85 PathProgramCache]: Analyzing trace with hash -2107662101, now seen corresponding path program 1 times [2023-12-16 08:30:08,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:30:08,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637421366] [2023-12-16 08:30:08,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:30:08,219 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:08,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:30:08,220 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:30:08,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 08:30:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:30:08,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:30:08,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:30:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-16 08:30:08,407 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:30:08,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:30:08,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [637421366] [2023-12-16 08:30:08,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [637421366] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:30:08,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:30:08,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:30:08,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493056040] [2023-12-16 08:30:08,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:30:08,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:30:08,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:30:08,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:30:08,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:08,409 INFO L87 Difference]: Start difference. First operand 5019 states and 6320 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 2 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:09,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:30:09,499 INFO L93 Difference]: Finished difference Result 13061 states and 16744 transitions. [2023-12-16 08:30:09,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:30:09,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 2 states have internal predecessors, (172), 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 190 [2023-12-16 08:30:09,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:30:09,515 INFO L225 Difference]: With dead ends: 13061 [2023-12-16 08:30:09,515 INFO L226 Difference]: Without dead ends: 8499 [2023-12-16 08:30:09,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:09,519 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 220 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:30:09,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 224 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 08:30:09,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8499 states. [2023-12-16 08:30:09,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8499 to 8498. [2023-12-16 08:30:09,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8498 states, 8497 states have (on average 1.2396139814052018) internal successors, (10533), 8497 states have internal predecessors, (10533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:09,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8498 states to 8498 states and 10533 transitions. [2023-12-16 08:30:09,620 INFO L78 Accepts]: Start accepts. Automaton has 8498 states and 10533 transitions. Word has length 190 [2023-12-16 08:30:09,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:30:09,620 INFO L495 AbstractCegarLoop]: Abstraction has 8498 states and 10533 transitions. [2023-12-16 08:30:09,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 2 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:09,620 INFO L276 IsEmpty]: Start isEmpty. Operand 8498 states and 10533 transitions. [2023-12-16 08:30:09,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-12-16 08:30:09,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:30:09,626 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:30:09,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 08:30:09,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:09,831 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:30:09,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:30:09,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1299192145, now seen corresponding path program 1 times [2023-12-16 08:30:09,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:30:09,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847816740] [2023-12-16 08:30:09,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:30:09,834 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:09,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:30:09,835 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:30:09,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 08:30:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:30:09,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:30:09,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:30:09,987 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 08:30:09,987 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:30:09,987 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:30:09,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847816740] [2023-12-16 08:30:09,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [847816740] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:30:09,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:30:09,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:30:09,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268568095] [2023-12-16 08:30:09,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:30:09,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:30:09,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:30:09,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:30:09,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:09,989 INFO L87 Difference]: Start difference. First operand 8498 states and 10533 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:11,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:30:11,078 INFO L93 Difference]: Finished difference Result 20404 states and 25989 transitions. [2023-12-16 08:30:11,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:30:11,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 210 [2023-12-16 08:30:11,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:30:11,106 INFO L225 Difference]: With dead ends: 20404 [2023-12-16 08:30:11,106 INFO L226 Difference]: Without dead ends: 12363 [2023-12-16 08:30:11,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:11,114 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 206 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:30:11,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 392 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 08:30:11,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12363 states. [2023-12-16 08:30:11,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12363 to 10528. [2023-12-16 08:30:11,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10528 states, 10527 states have (on average 1.2106013109147906) internal successors, (12744), 10527 states have internal predecessors, (12744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:11,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10528 states to 10528 states and 12744 transitions. [2023-12-16 08:30:11,256 INFO L78 Accepts]: Start accepts. Automaton has 10528 states and 12744 transitions. Word has length 210 [2023-12-16 08:30:11,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:30:11,257 INFO L495 AbstractCegarLoop]: Abstraction has 10528 states and 12744 transitions. [2023-12-16 08:30:11,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:11,257 INFO L276 IsEmpty]: Start isEmpty. Operand 10528 states and 12744 transitions. [2023-12-16 08:30:11,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-12-16 08:30:11,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:30:11,265 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:30:11,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 08:30:11,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:11,468 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:30:11,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:30:11,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1952896953, now seen corresponding path program 1 times [2023-12-16 08:30:11,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:30:11,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812178148] [2023-12-16 08:30:11,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:30:11,470 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:11,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:30:11,471 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:30:11,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 08:30:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:30:11,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:30:11,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:30:11,823 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 08:30:11,824 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:30:11,824 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:30:11,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812178148] [2023-12-16 08:30:11,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812178148] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:30:11,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:30:11,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:30:11,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16403258] [2023-12-16 08:30:11,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:30:11,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:30:11,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:30:11,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:30:11,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:30:11,825 INFO L87 Difference]: Start difference. First operand 10528 states and 12744 transitions. Second operand has 4 states, 4 states have (on average 56.75) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:12,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:30:12,906 INFO L93 Difference]: Finished difference Result 24423 states and 29760 transitions. [2023-12-16 08:30:12,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:30:12,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 3 states have internal predecessors, (227), 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 250 [2023-12-16 08:30:12,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:30:12,929 INFO L225 Difference]: With dead ends: 24423 [2023-12-16 08:30:12,929 INFO L226 Difference]: Without dead ends: 14352 [2023-12-16 08:30:12,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:30:12,940 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 404 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:30:12,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 51 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 08:30:12,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14352 states. [2023-12-16 08:30:13,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14352 to 13933. [2023-12-16 08:30:13,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13933 states, 13932 states have (on average 1.1726959517657192) internal successors, (16338), 13932 states have internal predecessors, (16338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:13,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13933 states to 13933 states and 16338 transitions. [2023-12-16 08:30:13,083 INFO L78 Accepts]: Start accepts. Automaton has 13933 states and 16338 transitions. Word has length 250 [2023-12-16 08:30:13,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:30:13,083 INFO L495 AbstractCegarLoop]: Abstraction has 13933 states and 16338 transitions. [2023-12-16 08:30:13,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:13,083 INFO L276 IsEmpty]: Start isEmpty. Operand 13933 states and 16338 transitions. [2023-12-16 08:30:13,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-12-16 08:30:13,090 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:30:13,090 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:30:13,098 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 [2023-12-16 08:30:13,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:13,294 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:30:13,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:30:13,294 INFO L85 PathProgramCache]: Analyzing trace with hash 654029020, now seen corresponding path program 1 times [2023-12-16 08:30:13,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:30:13,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439684530] [2023-12-16 08:30:13,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:30:13,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:13,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:30:13,297 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) [2023-12-16 08:30:13,297 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 [2023-12-16 08:30:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:30:13,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:30:13,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:30:13,552 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 08:30:13,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:30:13,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:30:13,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439684530] [2023-12-16 08:30:13,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439684530] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:30:13,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:30:13,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:30:13,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091133110] [2023-12-16 08:30:13,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:30:13,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:30:13,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:30:13,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:30:13,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:13,553 INFO L87 Difference]: Start difference. First operand 13933 states and 16338 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:14,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:30:14,477 INFO L93 Difference]: Finished difference Result 33911 states and 40185 transitions. [2023-12-16 08:30:14,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:30:14,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 258 [2023-12-16 08:30:14,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:30:14,504 INFO L225 Difference]: With dead ends: 33911 [2023-12-16 08:30:14,504 INFO L226 Difference]: Without dead ends: 20435 [2023-12-16 08:30:14,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:14,516 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 96 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:30:14,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 147 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:30:14,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20435 states. [2023-12-16 08:30:14,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20435 to 20431. [2023-12-16 08:30:14,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20431 states, 20430 states have (on average 1.1688693098384728) internal successors, (23880), 20430 states have internal predecessors, (23880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:14,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20431 states to 20431 states and 23880 transitions. [2023-12-16 08:30:14,720 INFO L78 Accepts]: Start accepts. Automaton has 20431 states and 23880 transitions. Word has length 258 [2023-12-16 08:30:14,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:30:14,720 INFO L495 AbstractCegarLoop]: Abstraction has 20431 states and 23880 transitions. [2023-12-16 08:30:14,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:14,720 INFO L276 IsEmpty]: Start isEmpty. Operand 20431 states and 23880 transitions. [2023-12-16 08:30:14,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-16 08:30:14,734 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:30:14,734 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:30:14,740 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 [2023-12-16 08:30:14,939 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 [2023-12-16 08:30:14,940 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:30:14,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:30:14,940 INFO L85 PathProgramCache]: Analyzing trace with hash -800134774, now seen corresponding path program 1 times [2023-12-16 08:30:14,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:30:14,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504374683] [2023-12-16 08:30:14,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:30:14,942 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:14,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:30:14,943 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) [2023-12-16 08:30:14,944 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 [2023-12-16 08:30:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:30:15,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:30:15,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:30:15,424 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-16 08:30:15,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:30:15,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:30:15,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504374683] [2023-12-16 08:30:15,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504374683] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:30:15,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:30:15,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:30:15,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282931280] [2023-12-16 08:30:15,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:30:15,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:30:15,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:30:15,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:30:15,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:15,426 INFO L87 Difference]: Start difference. First operand 20431 states and 23880 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 2 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:16,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:30:16,378 INFO L93 Difference]: Finished difference Result 46101 states and 54138 transitions. [2023-12-16 08:30:16,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:30:16,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 2 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 298 [2023-12-16 08:30:16,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:30:16,407 INFO L225 Difference]: With dead ends: 46101 [2023-12-16 08:30:16,407 INFO L226 Difference]: Without dead ends: 26127 [2023-12-16 08:30:16,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:16,424 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 119 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:30:16,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 129 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:30:16,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26127 states. [2023-12-16 08:30:16,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26127 to 26115. [2023-12-16 08:30:16,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26115 states, 26114 states have (on average 1.1468177988818258) internal successors, (29948), 26114 states have internal predecessors, (29948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:16,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26115 states to 26115 states and 29948 transitions. [2023-12-16 08:30:16,695 INFO L78 Accepts]: Start accepts. Automaton has 26115 states and 29948 transitions. Word has length 298 [2023-12-16 08:30:16,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:30:16,696 INFO L495 AbstractCegarLoop]: Abstraction has 26115 states and 29948 transitions. [2023-12-16 08:30:16,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 2 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:16,696 INFO L276 IsEmpty]: Start isEmpty. Operand 26115 states and 29948 transitions. [2023-12-16 08:30:16,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2023-12-16 08:30:16,712 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:30:16,712 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:30:16,725 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 [2023-12-16 08:30:16,915 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 [2023-12-16 08:30:16,916 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:30:16,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:30:16,916 INFO L85 PathProgramCache]: Analyzing trace with hash 61078138, now seen corresponding path program 1 times [2023-12-16 08:30:16,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:30:16,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280269811] [2023-12-16 08:30:16,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:30:16,918 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:16,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:30:16,919 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) [2023-12-16 08:30:16,926 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 [2023-12-16 08:30:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:30:17,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:30:17,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:30:17,101 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2023-12-16 08:30:17,101 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:30:17,101 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:30:17,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280269811] [2023-12-16 08:30:17,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280269811] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:30:17,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:30:17,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:30:17,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752369040] [2023-12-16 08:30:17,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:30:17,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:30:17,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:30:17,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:30:17,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:17,103 INFO L87 Difference]: Start difference. First operand 26115 states and 29948 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:17,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:30:17,576 INFO L93 Difference]: Finished difference Result 71946 states and 82981 transitions. [2023-12-16 08:30:17,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:30:17,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 312 [2023-12-16 08:30:17,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:30:17,625 INFO L225 Difference]: With dead ends: 71946 [2023-12-16 08:30:17,625 INFO L226 Difference]: Without dead ends: 46288 [2023-12-16 08:30:17,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:17,640 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 323 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:30:17,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 557 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 08:30:17,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46288 states. [2023-12-16 08:30:18,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46288 to 46286. [2023-12-16 08:30:18,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46286 states, 46285 states have (on average 1.153894350221454) internal successors, (53408), 46285 states have internal predecessors, (53408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:18,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46286 states to 46286 states and 53408 transitions. [2023-12-16 08:30:18,100 INFO L78 Accepts]: Start accepts. Automaton has 46286 states and 53408 transitions. Word has length 312 [2023-12-16 08:30:18,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:30:18,101 INFO L495 AbstractCegarLoop]: Abstraction has 46286 states and 53408 transitions. [2023-12-16 08:30:18,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:18,101 INFO L276 IsEmpty]: Start isEmpty. Operand 46286 states and 53408 transitions. [2023-12-16 08:30:18,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2023-12-16 08:30:18,122 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:30:18,122 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:30:18,136 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 [2023-12-16 08:30:18,339 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 [2023-12-16 08:30:18,339 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:30:18,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:30:18,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1775577768, now seen corresponding path program 1 times [2023-12-16 08:30:18,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:30:18,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800498469] [2023-12-16 08:30:18,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:30:18,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:18,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:30:18,342 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) [2023-12-16 08:30:18,345 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 [2023-12-16 08:30:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:30:18,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:30:18,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:30:18,767 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2023-12-16 08:30:18,767 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:30:18,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:30:18,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800498469] [2023-12-16 08:30:18,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800498469] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:30:18,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:30:18,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:30:18,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191460687] [2023-12-16 08:30:18,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:30:18,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:30:18,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:30:18,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:30:18,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:18,768 INFO L87 Difference]: Start difference. First operand 46286 states and 53408 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 2 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:19,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:30:19,397 INFO L93 Difference]: Finished difference Result 136096 states and 157298 transitions. [2023-12-16 08:30:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:30:19,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 2 states have internal predecessors, (242), 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 319 [2023-12-16 08:30:19,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:30:19,491 INFO L225 Difference]: With dead ends: 136096 [2023-12-16 08:30:19,492 INFO L226 Difference]: Without dead ends: 90267 [2023-12-16 08:30:19,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:19,535 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 228 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:30:19,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 527 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:30:19,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90267 states. [2023-12-16 08:30:20,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90267 to 90255. [2023-12-16 08:30:20,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90255 states, 90254 states have (on average 1.1543311099785052) internal successors, (104183), 90254 states have internal predecessors, (104183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:20,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90255 states to 90255 states and 104183 transitions. [2023-12-16 08:30:20,779 INFO L78 Accepts]: Start accepts. Automaton has 90255 states and 104183 transitions. Word has length 319 [2023-12-16 08:30:20,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:30:20,780 INFO L495 AbstractCegarLoop]: Abstraction has 90255 states and 104183 transitions. [2023-12-16 08:30:20,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 2 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:30:20,780 INFO L276 IsEmpty]: Start isEmpty. Operand 90255 states and 104183 transitions. [2023-12-16 08:30:20,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2023-12-16 08:30:20,892 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:30:20,892 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:30:20,896 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 (13)] Ended with exit code 0 [2023-12-16 08:30:21,093 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 [2023-12-16 08:30:21,093 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:30:21,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:30:21,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1786620649, now seen corresponding path program 1 times [2023-12-16 08:30:21,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:30:21,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [804144957] [2023-12-16 08:30:21,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:30:21,096 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:21,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:30:21,096 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) [2023-12-16 08:30:21,097 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 [2023-12-16 08:30:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:30:21,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:30:21,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:30:21,291 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2023-12-16 08:30:21,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:30:21,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:30:21,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [804144957] [2023-12-16 08:30:21,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [804144957] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:30:21,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:30:21,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:30:21,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390544445] [2023-12-16 08:30:21,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:30:21,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:30:21,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:30:21,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:30:21,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:21,293 INFO L87 Difference]: Start difference. First operand 90255 states and 104183 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 08:30:21,546 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:30:21,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:30:21,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:21,548 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 56 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:30:21,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 112 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 08:30:21,549 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 08:30:21,556 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 (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:30:21,561 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 (14)] Forceful destruction successful, exit code 0 [2023-12-16 08:30:21,750 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 [2023-12-16 08:30:21,751 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (90255states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (467 states constructed, input type IntersectNwa). [2023-12-16 08:30:21,754 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:30:21,757 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:30:21,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:30:21 BoogieIcfgContainer [2023-12-16 08:30:21,760 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:30:21,760 INFO L158 Benchmark]: Toolchain (without parser) took 69651.12ms. Allocated memory was 302.0MB in the beginning and 1.3GB in the end (delta: 999.3MB). Free memory was 253.6MB in the beginning and 698.7MB in the end (delta: -445.0MB). Peak memory consumption was 554.8MB. Max. memory is 8.0GB. [2023-12-16 08:30:21,760 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 191.9MB. Free memory is still 143.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:30:21,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 766.05ms. Allocated memory is still 302.0MB. Free memory was 253.2MB in the beginning and 247.3MB in the end (delta: 5.9MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2023-12-16 08:30:21,761 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.01ms. Allocated memory is still 302.0MB. Free memory was 247.3MB in the beginning and 232.1MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 08:30:21,761 INFO L158 Benchmark]: Boogie Preprocessor took 110.41ms. Allocated memory is still 302.0MB. Free memory was 232.1MB in the beginning and 219.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 08:30:21,762 INFO L158 Benchmark]: RCFGBuilder took 1753.25ms. Allocated memory is still 302.0MB. Free memory was 219.5MB in the beginning and 150.4MB in the end (delta: 69.2MB). Peak memory consumption was 131.6MB. Max. memory is 8.0GB. [2023-12-16 08:30:21,763 INFO L158 Benchmark]: TraceAbstraction took 66925.15ms. Allocated memory was 302.0MB in the beginning and 1.3GB in the end (delta: 999.3MB). Free memory was 149.8MB in the beginning and 698.7MB in the end (delta: -548.8MB). Peak memory consumption was 450.5MB. Max. memory is 8.0GB. [2023-12-16 08:30:21,764 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 191.9MB. Free memory is still 143.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 766.05ms. Allocated memory is still 302.0MB. Free memory was 253.2MB in the beginning and 247.3MB in the end (delta: 5.9MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 92.01ms. Allocated memory is still 302.0MB. Free memory was 247.3MB in the beginning and 232.1MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 110.41ms. Allocated memory is still 302.0MB. Free memory was 232.1MB in the beginning and 219.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * RCFGBuilder took 1753.25ms. Allocated memory is still 302.0MB. Free memory was 219.5MB in the beginning and 150.4MB in the end (delta: 69.2MB). Peak memory consumption was 131.6MB. Max. memory is 8.0GB. * TraceAbstraction took 66925.15ms. Allocated memory was 302.0MB in the beginning and 1.3GB in the end (delta: 999.3MB). Free memory was 149.8MB in the beginning and 698.7MB in the end (delta: -548.8MB). Peak memory consumption was 450.5MB. 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: 1477]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1477). Cancelled while NwaCegarLoop was constructing difference of abstraction (90255states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (467 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 66.9s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 22.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5500 SdHoareTripleChecker+Valid, 19.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5500 mSDsluCounter, 3883 SdHoareTripleChecker+Invalid, 16.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1321 mSDsCounter, 1736 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15635 IncrementalHoareTripleChecker+Invalid, 17371 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1736 mSolverCounterUnsat, 2562 mSDtfsCounter, 15635 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2980 GetRequests, 2938 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90255occurred in iteration=12, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 2501 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 37.1s InterpolantComputationTime, 2981 NumberOfCodeBlocks, 2981 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2968 ConstructedInterpolants, 0 QuantifiedInterpolants, 35354 SizeOfPredicates, 46 NumberOfNonLiveVariables, 4430 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 1645/1645 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