/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/array-examples/standard_partition_ground-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 16:26:30,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 16:26:30,838 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-21 16:26:30,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 16:26:30,842 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 16:26:30,862 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 16:26:30,862 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 16:26:30,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 16:26:30,863 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 16:26:30,866 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 16:26:30,867 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 16:26:30,867 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 16:26:30,868 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 16:26:30,869 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 16:26:30,869 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 16:26:30,869 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 16:26:30,869 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 16:26:30,869 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 16:26:30,870 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 16:26:30,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 16:26:30,871 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 16:26:30,871 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 16:26:30,871 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 16:26:30,871 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 16:26:30,871 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 16:26:30,872 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 16:26:30,872 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 16:26:30,872 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 16:26:30,872 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 16:26:30,872 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 16:26:30,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 16:26:30,873 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 16:26:30,873 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 16:26:30,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 16:26:30,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 16:26:30,874 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 16:26:30,874 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 16:26:30,874 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 16:26:30,874 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 16:26:30,874 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 16:26:30,874 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 16:26:30,874 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 16:26:30,874 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 16:26:30,875 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 16:26:30,875 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 16:26:30,875 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 16:26:30,875 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 16:26:31,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 16:26:31,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 16:26:31,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 16:26:31,083 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 16:26:31,083 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 16:26:31,084 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_partition_ground-1.i [2023-12-21 16:26:32,108 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 16:26:32,281 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 16:26:32,281 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_partition_ground-1.i [2023-12-21 16:26:32,289 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a92d98fdb/dc3a9d96f11448b4858f3a179ef19d92/FLAGcb9406e3e [2023-12-21 16:26:32,312 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a92d98fdb/dc3a9d96f11448b4858f3a179ef19d92 [2023-12-21 16:26:32,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 16:26:32,316 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 16:26:32,319 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 16:26:32,319 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 16:26:32,323 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 16:26:32,323 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:26:32" (1/1) ... [2023-12-21 16:26:32,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7102987c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:26:32, skipping insertion in model container [2023-12-21 16:26:32,324 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:26:32" (1/1) ... [2023-12-21 16:26:32,349 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 16:26:32,498 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_partition_ground-1.i[860,873] [2023-12-21 16:26:32,523 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 16:26:32,532 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 16:26:32,542 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_partition_ground-1.i[860,873] [2023-12-21 16:26:32,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 16:26:32,567 INFO L206 MainTranslator]: Completed translation [2023-12-21 16:26:32,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:26:32 WrapperNode [2023-12-21 16:26:32,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 16:26:32,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 16:26:32,570 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 16:26:32,570 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 16:26:32,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:26:32" (1/1) ... [2023-12-21 16:26:32,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:26:32" (1/1) ... [2023-12-21 16:26:32,607 INFO L138 Inliner]: procedures = 18, calls = 26, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 81 [2023-12-21 16:26:32,607 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 16:26:32,608 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 16:26:32,608 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 16:26:32,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 16:26:32,615 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:26:32" (1/1) ... [2023-12-21 16:26:32,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:26:32" (1/1) ... [2023-12-21 16:26:32,622 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:26:32" (1/1) ... [2023-12-21 16:26:32,632 INFO L175 MemorySlicer]: Split 11 memory accesses to 4 slices as follows [2, 2, 2, 5]. 45 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2023-12-21 16:26:32,632 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:26:32" (1/1) ... [2023-12-21 16:26:32,632 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:26:32" (1/1) ... [2023-12-21 16:26:32,637 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:26:32" (1/1) ... [2023-12-21 16:26:32,653 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:26:32" (1/1) ... [2023-12-21 16:26:32,655 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:26:32" (1/1) ... [2023-12-21 16:26:32,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:26:32" (1/1) ... [2023-12-21 16:26:32,657 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 16:26:32,658 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 16:26:32,658 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 16:26:32,658 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 16:26:32,659 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:26:32" (1/1) ... [2023-12-21 16:26:32,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 16:26:32,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 16:26:32,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 16:26:32,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 16:26:32,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 16:26:32,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 16:26:32,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-21 16:26:32,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-21 16:26:32,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-21 16:26:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-21 16:26:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-21 16:26:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-21 16:26:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-21 16:26:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-21 16:26:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 16:26:32,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 16:26:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-21 16:26:32,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-21 16:26:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-21 16:26:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-21 16:26:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-21 16:26:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-21 16:26:32,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-21 16:26:32,842 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 16:26:32,844 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 16:26:33,038 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 16:26:33,070 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 16:26:33,070 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-21 16:26:33,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:26:33 BoogieIcfgContainer [2023-12-21 16:26:33,070 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 16:26:33,072 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 16:26:33,072 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 16:26:33,075 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 16:26:33,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:26:32" (1/3) ... [2023-12-21 16:26:33,075 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2b564f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:26:33, skipping insertion in model container [2023-12-21 16:26:33,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:26:32" (2/3) ... [2023-12-21 16:26:33,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2b564f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:26:33, skipping insertion in model container [2023-12-21 16:26:33,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:26:33" (3/3) ... [2023-12-21 16:26:33,076 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_partition_ground-1.i [2023-12-21 16:26:33,090 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 16:26:33,090 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 16:26:33,119 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 16:26:33,124 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;@589df352, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 16:26:33,124 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 16:26:33,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-21 16:26:33,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-21 16:26:33,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 16:26:33,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 16:26:33,131 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 16:26:33,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 16:26:33,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1298611175, now seen corresponding path program 1 times [2023-12-21 16:26:33,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 16:26:33,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358938780] [2023-12-21 16:26:33,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 16:26:33,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:33,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 16:26:33,144 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 16:26:33,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-21 16:26:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 16:26:33,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 16:26:33,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 16:26:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 16:26:33,228 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 16:26:33,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 16:26:33,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358938780] [2023-12-21 16:26:33,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358938780] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 16:26:33,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 16:26:33,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 16:26:33,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401414645] [2023-12-21 16:26:33,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 16:26:33,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 16:26:33,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 16:26:33,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 16:26:33,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 16:26:33,261 INFO L87 Difference]: Start difference. First operand has 24 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:33,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 16:26:33,291 INFO L93 Difference]: Finished difference Result 44 states and 65 transitions. [2023-12-21 16:26:33,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 16:26:33,292 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-12-21 16:26:33,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 16:26:33,297 INFO L225 Difference]: With dead ends: 44 [2023-12-21 16:26:33,297 INFO L226 Difference]: Without dead ends: 22 [2023-12-21 16:26:33,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 16:26:33,304 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 16:26:33,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 16:26:33,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-12-21 16:26:33,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-12-21 16:26:33,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-21 16:26:33,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2023-12-21 16:26:33,331 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 10 [2023-12-21 16:26:33,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 16:26:33,332 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2023-12-21 16:26:33,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:33,332 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2023-12-21 16:26:33,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-21 16:26:33,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 16:26:33,333 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 16:26:33,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-21 16:26:33,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:33,535 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 16:26:33,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 16:26:33,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1466832111, now seen corresponding path program 1 times [2023-12-21 16:26:33,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 16:26:33,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1772724442] [2023-12-21 16:26:33,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 16:26:33,539 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:33,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 16:26:33,540 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 16:26:33,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-21 16:26:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 16:26:33,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 16:26:33,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 16:26:33,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 16:26:33,601 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 16:26:33,601 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 16:26:33,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1772724442] [2023-12-21 16:26:33,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1772724442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 16:26:33,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 16:26:33,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 16:26:33,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453025969] [2023-12-21 16:26:33,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 16:26:33,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 16:26:33,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 16:26:33,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 16:26:33,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 16:26:33,619 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:33,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 16:26:33,676 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2023-12-21 16:26:33,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 16:26:33,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-12-21 16:26:33,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 16:26:33,677 INFO L225 Difference]: With dead ends: 46 [2023-12-21 16:26:33,677 INFO L226 Difference]: Without dead ends: 28 [2023-12-21 16:26:33,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 16:26:33,679 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 16:26:33,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 35 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 16:26:33,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-12-21 16:26:33,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2023-12-21 16:26:33,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-21 16:26:33,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2023-12-21 16:26:33,683 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 10 [2023-12-21 16:26:33,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 16:26:33,683 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2023-12-21 16:26:33,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:33,684 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2023-12-21 16:26:33,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-21 16:26:33,684 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 16:26:33,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 16:26:33,688 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 [2023-12-21 16:26:33,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:33,886 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 16:26:33,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 16:26:33,887 INFO L85 PathProgramCache]: Analyzing trace with hash -800811499, now seen corresponding path program 1 times [2023-12-21 16:26:33,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 16:26:33,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105779241] [2023-12-21 16:26:33,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 16:26:33,888 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:33,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 16:26:33,889 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 16:26:33,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-21 16:26:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 16:26:33,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 16:26:33,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 16:26:34,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-21 16:26:34,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 16:26:34,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-21 16:26:34,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 16:26:34,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105779241] [2023-12-21 16:26:34,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105779241] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 16:26:34,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 16:26:34,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-21 16:26:34,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202293461] [2023-12-21 16:26:34,034 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 16:26:34,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 16:26:34,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 16:26:34,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 16:26:34,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-21 16:26:34,035 INFO L87 Difference]: Start difference. First operand 24 states and 30 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:34,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 16:26:34,142 INFO L93 Difference]: Finished difference Result 61 states and 83 transitions. [2023-12-21 16:26:34,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 16:26:34,143 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-12-21 16:26:34,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 16:26:34,143 INFO L225 Difference]: With dead ends: 61 [2023-12-21 16:26:34,144 INFO L226 Difference]: Without dead ends: 42 [2023-12-21 16:26:34,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-21 16:26:34,145 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 26 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 16:26:34,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 83 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 16:26:34,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-12-21 16:26:34,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-12-21 16:26:34,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 38 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-21 16:26:34,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 54 transitions. [2023-12-21 16:26:34,151 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 54 transitions. Word has length 16 [2023-12-21 16:26:34,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 16:26:34,151 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 54 transitions. [2023-12-21 16:26:34,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:34,151 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2023-12-21 16:26:34,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-21 16:26:34,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 16:26:34,152 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 16:26:34,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-21 16:26:34,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:34,353 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 16:26:34,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 16:26:34,353 INFO L85 PathProgramCache]: Analyzing trace with hash -400249711, now seen corresponding path program 2 times [2023-12-21 16:26:34,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 16:26:34,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840108532] [2023-12-21 16:26:34,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 16:26:34,354 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:34,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 16:26:34,355 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 16:26:34,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-21 16:26:34,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-21 16:26:34,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 16:26:34,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 16:26:34,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 16:26:34,465 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-21 16:26:34,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 16:26:34,466 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 16:26:34,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840108532] [2023-12-21 16:26:34,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840108532] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 16:26:34,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 16:26:34,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 16:26:34,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883420327] [2023-12-21 16:26:34,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 16:26:34,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 16:26:34,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 16:26:34,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 16:26:34,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 16:26:34,468 INFO L87 Difference]: Start difference. First operand 42 states and 54 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:34,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 16:26:34,525 INFO L93 Difference]: Finished difference Result 89 states and 115 transitions. [2023-12-21 16:26:34,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 16:26:34,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-12-21 16:26:34,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 16:26:34,529 INFO L225 Difference]: With dead ends: 89 [2023-12-21 16:26:34,529 INFO L226 Difference]: Without dead ends: 76 [2023-12-21 16:26:34,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 16:26:34,534 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 9 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 16:26:34,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 54 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 16:26:34,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-21 16:26:34,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 69. [2023-12-21 16:26:34,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 65 states have (on average 1.323076923076923) internal successors, (86), 65 states have internal predecessors, (86), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-21 16:26:34,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 90 transitions. [2023-12-21 16:26:34,555 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 90 transitions. Word has length 34 [2023-12-21 16:26:34,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 16:26:34,555 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 90 transitions. [2023-12-21 16:26:34,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:34,556 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 90 transitions. [2023-12-21 16:26:34,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-21 16:26:34,556 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 16:26:34,556 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 16:26:34,561 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-21 16:26:34,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:34,758 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 16:26:34,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 16:26:34,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1405188623, now seen corresponding path program 1 times [2023-12-21 16:26:34,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 16:26:34,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910557930] [2023-12-21 16:26:34,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 16:26:34,760 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:34,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 16:26:34,762 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 16:26:34,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-21 16:26:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 16:26:34,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 16:26:34,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 16:26:34,926 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-21 16:26:34,927 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 16:26:35,017 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-21 16:26:35,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 16:26:35,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910557930] [2023-12-21 16:26:35,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910557930] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 16:26:35,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 16:26:35,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-12-21 16:26:35,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107876467] [2023-12-21 16:26:35,018 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 16:26:35,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 16:26:35,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 16:26:35,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 16:26:35,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-21 16:26:35,019 INFO L87 Difference]: Start difference. First operand 69 states and 90 transitions. Second operand has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:35,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 16:26:35,410 INFO L93 Difference]: Finished difference Result 185 states and 266 transitions. [2023-12-21 16:26:35,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 16:26:35,410 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-12-21 16:26:35,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 16:26:35,411 INFO L225 Difference]: With dead ends: 185 [2023-12-21 16:26:35,411 INFO L226 Difference]: Without dead ends: 141 [2023-12-21 16:26:35,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-12-21 16:26:35,412 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 141 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 16:26:35,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 159 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 16:26:35,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-12-21 16:26:35,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2023-12-21 16:26:35,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 137 states have (on average 1.3284671532846715) internal successors, (182), 137 states have internal predecessors, (182), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-21 16:26:35,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 186 transitions. [2023-12-21 16:26:35,424 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 186 transitions. Word has length 34 [2023-12-21 16:26:35,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 16:26:35,425 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 186 transitions. [2023-12-21 16:26:35,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:35,425 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 186 transitions. [2023-12-21 16:26:35,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-21 16:26:35,426 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 16:26:35,426 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 16:26:35,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-21 16:26:35,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:35,644 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 16:26:35,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 16:26:35,645 INFO L85 PathProgramCache]: Analyzing trace with hash -563152689, now seen corresponding path program 2 times [2023-12-21 16:26:35,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 16:26:35,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658455673] [2023-12-21 16:26:35,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 16:26:35,647 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:35,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 16:26:35,648 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 16:26:35,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-21 16:26:35,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 16:26:35,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 16:26:35,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 16:26:35,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 16:26:36,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-12-21 16:26:36,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 16:26:36,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-12-21 16:26:36,201 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 9 proven. 19 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2023-12-21 16:26:36,201 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 16:26:36,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2023-12-21 16:26:36,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2023-12-21 16:26:36,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2023-12-21 16:26:36,410 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2023-12-21 16:26:36,410 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 16:26:36,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658455673] [2023-12-21 16:26:36,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [658455673] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 16:26:36,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 16:26:36,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-21 16:26:36,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260272158] [2023-12-21 16:26:36,411 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 16:26:36,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 16:26:36,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 16:26:36,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 16:26:36,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-12-21 16:26:36,412 INFO L87 Difference]: Start difference. First operand 141 states and 186 transitions. Second operand has 15 states, 14 states have (on average 2.5) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:36,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 16:26:36,648 INFO L93 Difference]: Finished difference Result 224 states and 295 transitions. [2023-12-21 16:26:36,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 16:26:36,649 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.5) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-21 16:26:36,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 16:26:36,650 INFO L225 Difference]: With dead ends: 224 [2023-12-21 16:26:36,650 INFO L226 Difference]: Without dead ends: 222 [2023-12-21 16:26:36,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-12-21 16:26:36,651 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 53 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 16:26:36,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 238 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 16:26:36,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2023-12-21 16:26:36,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 206. [2023-12-21 16:26:36,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 200 states have (on average 1.33) internal successors, (266), 201 states have internal predecessors, (266), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-21 16:26:36,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 272 transitions. [2023-12-21 16:26:36,684 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 272 transitions. Word has length 70 [2023-12-21 16:26:36,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 16:26:36,685 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 272 transitions. [2023-12-21 16:26:36,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.5) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:36,685 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 272 transitions. [2023-12-21 16:26:36,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-21 16:26:36,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 16:26:36,690 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 16:26:36,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-21 16:26:36,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:36,895 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 16:26:36,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 16:26:36,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1486235153, now seen corresponding path program 3 times [2023-12-21 16:26:36,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 16:26:36,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947193087] [2023-12-21 16:26:36,897 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-21 16:26:36,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:36,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 16:26:36,899 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 16:26:36,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-21 16:26:37,022 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-12-21 16:26:37,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 16:26:37,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 16:26:37,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 16:26:37,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-12-21 16:26:37,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 16:26:37,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-21 16:26:37,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-12-21 16:26:37,380 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 8 proven. 45 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2023-12-21 16:26:37,381 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 16:26:37,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2023-12-21 16:26:37,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 70 [2023-12-21 16:26:37,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2023-12-21 16:26:37,668 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2023-12-21 16:26:37,668 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 16:26:37,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947193087] [2023-12-21 16:26:37,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1947193087] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 16:26:37,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 16:26:37,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-21 16:26:37,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054962177] [2023-12-21 16:26:37,669 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 16:26:37,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-21 16:26:37,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 16:26:37,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-21 16:26:37,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-12-21 16:26:37,670 INFO L87 Difference]: Start difference. First operand 206 states and 272 transitions. Second operand has 17 states, 16 states have (on average 2.5625) internal successors, (41), 14 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:39,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-21 16:26:40,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 16:26:40,846 INFO L93 Difference]: Finished difference Result 372 states and 492 transitions. [2023-12-21 16:26:40,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 16:26:40,847 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.5625) internal successors, (41), 14 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-21 16:26:40,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 16:26:40,848 INFO L225 Difference]: With dead ends: 372 [2023-12-21 16:26:40,848 INFO L226 Difference]: Without dead ends: 362 [2023-12-21 16:26:40,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2023-12-21 16:26:40,849 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 106 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-21 16:26:40,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 330 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-21 16:26:40,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2023-12-21 16:26:40,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 283. [2023-12-21 16:26:40,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 277 states have (on average 1.332129963898917) internal successors, (369), 278 states have internal predecessors, (369), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-21 16:26:40,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 375 transitions. [2023-12-21 16:26:40,883 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 375 transitions. Word has length 70 [2023-12-21 16:26:40,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 16:26:40,883 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 375 transitions. [2023-12-21 16:26:40,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.5625) internal successors, (41), 14 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:40,883 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 375 transitions. [2023-12-21 16:26:40,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-21 16:26:40,884 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 16:26:40,884 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 16:26:40,893 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-21 16:26:41,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:41,087 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 16:26:41,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 16:26:41,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1974563503, now seen corresponding path program 4 times [2023-12-21 16:26:41,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 16:26:41,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584079798] [2023-12-21 16:26:41,088 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-21 16:26:41,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:41,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 16:26:41,089 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 16:26:41,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-21 16:26:41,234 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-21 16:26:41,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 16:26:41,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-21 16:26:41,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 16:26:41,361 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-12-21 16:26:41,361 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 16:26:41,691 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-12-21 16:26:41,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 16:26:41,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584079798] [2023-12-21 16:26:41,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584079798] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 16:26:41,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 16:26:41,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-12-21 16:26:41,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14820854] [2023-12-21 16:26:41,692 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 16:26:41,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-21 16:26:41,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 16:26:41,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-21 16:26:41,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2023-12-21 16:26:41,693 INFO L87 Difference]: Start difference. First operand 283 states and 375 transitions. Second operand has 24 states, 24 states have (on average 3.0833333333333335) internal successors, (74), 23 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:43,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 16:26:43,315 INFO L93 Difference]: Finished difference Result 760 states and 1115 transitions. [2023-12-21 16:26:43,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-21 16:26:43,316 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.0833333333333335) internal successors, (74), 23 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-21 16:26:43,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 16:26:43,319 INFO L225 Difference]: With dead ends: 760 [2023-12-21 16:26:43,320 INFO L226 Difference]: Without dead ends: 607 [2023-12-21 16:26:43,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 16:26:43,321 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 583 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 16:26:43,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 433 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 16:26:43,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2023-12-21 16:26:43,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 607. [2023-12-21 16:26:43,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 601 states have (on average 1.3327787021630615) internal successors, (801), 602 states have internal predecessors, (801), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-21 16:26:43,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 807 transitions. [2023-12-21 16:26:43,355 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 807 transitions. Word has length 70 [2023-12-21 16:26:43,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 16:26:43,355 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 807 transitions. [2023-12-21 16:26:43,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.0833333333333335) internal successors, (74), 23 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:43,356 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 807 transitions. [2023-12-21 16:26:43,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 16:26:43,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 16:26:43,357 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 18, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 16:26:43,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-21 16:26:43,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:43,562 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 16:26:43,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 16:26:43,563 INFO L85 PathProgramCache]: Analyzing trace with hash -75525679, now seen corresponding path program 5 times [2023-12-21 16:26:43,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 16:26:43,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523447207] [2023-12-21 16:26:43,564 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-21 16:26:43,564 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:43,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 16:26:43,576 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 16:26:43,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-21 16:26:45,183 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-12-21 16:26:45,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 16:26:45,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-21 16:26:45,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 16:26:45,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2023-12-21 16:26:45,534 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 16:26:46,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2023-12-21 16:26:46,748 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 16:26:46,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523447207] [2023-12-21 16:26:46,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523447207] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 16:26:46,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 16:26:46,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2023-12-21 16:26:46,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733649172] [2023-12-21 16:26:46,756 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 16:26:46,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-12-21 16:26:46,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 16:26:46,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-12-21 16:26:46,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2023-12-21 16:26:46,772 INFO L87 Difference]: Start difference. First operand 607 states and 807 transitions. Second operand has 48 states, 48 states have (on average 3.0416666666666665) internal successors, (146), 47 states have internal predecessors, (146), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:54,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 16:26:54,558 INFO L93 Difference]: Finished difference Result 1552 states and 2279 transitions. [2023-12-21 16:26:54,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-21 16:26:54,558 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 3.0416666666666665) internal successors, (146), 47 states have internal predecessors, (146), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2023-12-21 16:26:54,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 16:26:54,562 INFO L225 Difference]: With dead ends: 1552 [2023-12-21 16:26:54,562 INFO L226 Difference]: Without dead ends: 1255 [2023-12-21 16:26:54,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2023-12-21 16:26:54,564 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 2209 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 3449 mSolverCounterSat, 579 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 4028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 579 IncrementalHoareTripleChecker+Valid, 3449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-21 16:26:54,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2209 Valid, 1441 Invalid, 4028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [579 Valid, 3449 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-21 16:26:54,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2023-12-21 16:26:54,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2023-12-21 16:26:54,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1249 states have (on average 1.33306645316253) internal successors, (1665), 1250 states have internal predecessors, (1665), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-21 16:26:54,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1671 transitions. [2023-12-21 16:26:54,629 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1671 transitions. Word has length 142 [2023-12-21 16:26:54,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 16:26:54,630 INFO L495 AbstractCegarLoop]: Abstraction has 1255 states and 1671 transitions. [2023-12-21 16:26:54,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 3.0416666666666665) internal successors, (146), 47 states have internal predecessors, (146), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:54,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1671 transitions. [2023-12-21 16:26:54,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-12-21 16:26:54,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 16:26:54,637 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 46, 42, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 16:26:54,649 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 (10)] Ended with exit code 0 [2023-12-21 16:26:54,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:54,849 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 16:26:54,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 16:26:54,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1111123247, now seen corresponding path program 6 times [2023-12-21 16:26:54,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 16:26:54,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696006503] [2023-12-21 16:26:54,850 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-21 16:26:54,851 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:26:54,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 16:26:54,851 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 16:26:54,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-21 16:26:55,356 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2023-12-21 16:26:55,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 16:26:55,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-21 16:26:55,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 16:26:55,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-12-21 16:26:55,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 16:26:55,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-21 16:26:55,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-21 16:26:56,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-21 16:26:56,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-12-21 16:26:56,448 INFO L134 CoverageAnalysis]: Checked inductivity of 6302 backedges. 42 proven. 484 refuted. 0 times theorem prover too weak. 5776 trivial. 0 not checked. [2023-12-21 16:26:56,448 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 16:26:56,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 44 [2023-12-21 16:26:56,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10030 treesize of output 9966 [2023-12-21 16:26:56,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2023-12-21 16:26:57,157 INFO L134 CoverageAnalysis]: Checked inductivity of 6302 backedges. 0 proven. 526 refuted. 0 times theorem prover too weak. 5776 trivial. 0 not checked. [2023-12-21 16:26:57,157 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 16:26:57,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696006503] [2023-12-21 16:26:57,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696006503] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 16:26:57,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 16:26:57,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-12-21 16:26:57,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721693434] [2023-12-21 16:26:57,157 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 16:26:57,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-21 16:26:57,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 16:26:57,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-21 16:26:57,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2023-12-21 16:26:57,159 INFO L87 Difference]: Start difference. First operand 1255 states and 1671 transitions. Second operand has 21 states, 20 states have (on average 2.65) internal successors, (53), 18 states have internal predecessors, (53), 1 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:26:59,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-21 16:27:00,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 16:27:00,250 INFO L93 Difference]: Finished difference Result 2552 states and 3405 transitions. [2023-12-21 16:27:00,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-21 16:27:00,251 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.65) internal successors, (53), 18 states have internal predecessors, (53), 1 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 286 [2023-12-21 16:27:00,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 16:27:00,257 INFO L225 Difference]: With dead ends: 2552 [2023-12-21 16:27:00,258 INFO L226 Difference]: Without dead ends: 2542 [2023-12-21 16:27:00,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=1101, Unknown=0, NotChecked=0, Total=1406 [2023-12-21 16:27:00,259 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 371 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 16:27:00,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 598 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 16:27:00,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2023-12-21 16:27:00,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 1737. [2023-12-21 16:27:00,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1737 states, 1731 states have (on average 1.3339110340843443) internal successors, (2309), 1732 states have internal predecessors, (2309), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-21 16:27:00,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1737 states to 1737 states and 2315 transitions. [2023-12-21 16:27:00,346 INFO L78 Accepts]: Start accepts. Automaton has 1737 states and 2315 transitions. Word has length 286 [2023-12-21 16:27:00,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 16:27:00,347 INFO L495 AbstractCegarLoop]: Abstraction has 1737 states and 2315 transitions. [2023-12-21 16:27:00,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.65) internal successors, (53), 18 states have internal predecessors, (53), 1 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:27:00,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1737 states and 2315 transitions. [2023-12-21 16:27:00,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-12-21 16:27:00,350 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 16:27:00,351 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 46, 38, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 16:27:00,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-21 16:27:00,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:27:00,557 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 16:27:00,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 16:27:00,557 INFO L85 PathProgramCache]: Analyzing trace with hash 2120440145, now seen corresponding path program 7 times [2023-12-21 16:27:00,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 16:27:00,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060527745] [2023-12-21 16:27:00,558 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-21 16:27:00,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:27:00,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 16:27:00,559 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 16:27:00,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-21 16:27:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 16:27:01,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 48 conjunts are in the unsatisfiable core [2023-12-21 16:27:01,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 16:27:01,876 INFO L134 CoverageAnalysis]: Checked inductivity of 6302 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 3151 trivial. 0 not checked. [2023-12-21 16:27:01,876 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 16:27:06,782 INFO L134 CoverageAnalysis]: Checked inductivity of 6302 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 3151 trivial. 0 not checked. [2023-12-21 16:27:06,783 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 16:27:06,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060527745] [2023-12-21 16:27:06,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060527745] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 16:27:06,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 16:27:06,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 95 [2023-12-21 16:27:06,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801031382] [2023-12-21 16:27:06,783 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 16:27:06,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-12-21 16:27:06,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 16:27:06,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-12-21 16:27:06,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2398, Invalid=6722, Unknown=0, NotChecked=0, Total=9120 [2023-12-21 16:27:06,786 INFO L87 Difference]: Start difference. First operand 1737 states and 2315 transitions. Second operand has 96 states, 96 states have (on average 3.0208333333333335) internal successors, (290), 95 states have internal predecessors, (290), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:28:03,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 16:28:03,938 INFO L93 Difference]: Finished difference Result 4194 states and 6211 transitions. [2023-12-21 16:28:03,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-12-21 16:28:03,938 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 3.0208333333333335) internal successors, (290), 95 states have internal predecessors, (290), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 286 [2023-12-21 16:28:03,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 16:28:03,947 INFO L225 Difference]: With dead ends: 4194 [2023-12-21 16:28:03,947 INFO L226 Difference]: Without dead ends: 3609 [2023-12-21 16:28:03,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 51.6s TimeCoverageRelationStatistics Valid=6814, Invalid=13208, Unknown=0, NotChecked=0, Total=20022 [2023-12-21 16:28:03,952 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 9260 mSDsluCounter, 5088 mSDsCounter, 0 mSdLazyCounter, 13821 mSolverCounterSat, 2422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9260 SdHoareTripleChecker+Valid, 5199 SdHoareTripleChecker+Invalid, 16243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2422 IncrementalHoareTripleChecker+Valid, 13821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2023-12-21 16:28:03,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9260 Valid, 5199 Invalid, 16243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2422 Valid, 13821 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2023-12-21 16:28:03,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3609 states. [2023-12-21 16:28:04,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3609 to 3609. [2023-12-21 16:28:04,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3609 states, 3603 states have (on average 1.3336108798223703) internal successors, (4805), 3604 states have internal predecessors, (4805), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-21 16:28:04,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3609 states to 3609 states and 4811 transitions. [2023-12-21 16:28:04,116 INFO L78 Accepts]: Start accepts. Automaton has 3609 states and 4811 transitions. Word has length 286 [2023-12-21 16:28:04,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 16:28:04,116 INFO L495 AbstractCegarLoop]: Abstraction has 3609 states and 4811 transitions. [2023-12-21 16:28:04,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 3.0208333333333335) internal successors, (290), 95 states have internal predecessors, (290), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:28:04,117 INFO L276 IsEmpty]: Start isEmpty. Operand 3609 states and 4811 transitions. [2023-12-21 16:28:04,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2023-12-21 16:28:04,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 16:28:04,127 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 94, 94, 94, 86, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 16:28:04,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-21 16:28:04,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:28:04,337 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 16:28:04,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 16:28:04,337 INFO L85 PathProgramCache]: Analyzing trace with hash -20288687, now seen corresponding path program 8 times [2023-12-21 16:28:04,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 16:28:04,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610618216] [2023-12-21 16:28:04,338 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 16:28:04,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:28:04,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 16:28:04,339 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 16:28:04,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-21 16:28:05,070 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 16:28:05,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 16:28:05,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 1487 conjuncts, 96 conjunts are in the unsatisfiable core [2023-12-21 16:28:05,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 16:28:08,285 INFO L134 CoverageAnalysis]: Checked inductivity of 26414 backedges. 0 proven. 13207 refuted. 0 times theorem prover too weak. 13207 trivial. 0 not checked. [2023-12-21 16:28:08,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 16:28:26,495 INFO L134 CoverageAnalysis]: Checked inductivity of 26414 backedges. 0 proven. 13207 refuted. 0 times theorem prover too weak. 13207 trivial. 0 not checked. [2023-12-21 16:28:26,495 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 16:28:26,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610618216] [2023-12-21 16:28:26,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610618216] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 16:28:26,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 16:28:26,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96] total 191 [2023-12-21 16:28:26,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87139736] [2023-12-21 16:28:26,495 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 16:28:26,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-12-21 16:28:26,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 16:28:26,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-12-21 16:28:26,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9406, Invalid=27266, Unknown=0, NotChecked=0, Total=36672 [2023-12-21 16:28:26,518 INFO L87 Difference]: Start difference. First operand 3609 states and 4811 transitions. Second operand has 192 states, 192 states have (on average 3.0104166666666665) internal successors, (578), 191 states have internal predecessors, (578), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:36:57,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 16:36:57,337 INFO L93 Difference]: Finished difference Result 8514 states and 12595 transitions. [2023-12-21 16:36:57,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-12-21 16:36:57,338 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 192 states have (on average 3.0104166666666665) internal successors, (578), 191 states have internal predecessors, (578), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 574 [2023-12-21 16:36:57,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 16:36:57,354 INFO L225 Difference]: With dead ends: 8514 [2023-12-21 16:36:57,354 INFO L226 Difference]: Without dead ends: 7353 [2023-12-21 16:36:57,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1240 GetRequests, 956 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4371 ImplicationChecksByTransitivity, 489.1s TimeCoverageRelationStatistics Valid=27454, Invalid=54056, Unknown=0, NotChecked=0, Total=81510 [2023-12-21 16:36:57,361 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 36935 mSDsluCounter, 19392 mSDsCounter, 0 mSdLazyCounter, 55293 mSolverCounterSat, 9443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36935 SdHoareTripleChecker+Valid, 19599 SdHoareTripleChecker+Invalid, 64736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9443 IncrementalHoareTripleChecker+Valid, 55293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.7s IncrementalHoareTripleChecker+Time [2023-12-21 16:36:57,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36935 Valid, 19599 Invalid, 64736 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9443 Valid, 55293 Invalid, 0 Unknown, 0 Unchecked, 38.7s Time] [2023-12-21 16:36:57,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7353 states. [2023-12-21 16:36:57,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7353 to 7353. [2023-12-21 16:36:57,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7353 states, 7347 states have (on average 1.3334694433101946) internal successors, (9797), 7348 states have internal predecessors, (9797), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-21 16:36:57,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7353 states to 7353 states and 9803 transitions. [2023-12-21 16:36:57,686 INFO L78 Accepts]: Start accepts. Automaton has 7353 states and 9803 transitions. Word has length 574 [2023-12-21 16:36:57,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 16:36:57,687 INFO L495 AbstractCegarLoop]: Abstraction has 7353 states and 9803 transitions. [2023-12-21 16:36:57,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 192 states have (on average 3.0104166666666665) internal successors, (578), 191 states have internal predecessors, (578), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:36:57,687 INFO L276 IsEmpty]: Start isEmpty. Operand 7353 states and 9803 transitions. [2023-12-21 16:36:57,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1151 [2023-12-21 16:36:57,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 16:36:57,705 INFO L195 NwaCegarLoop]: trace histogram [190, 190, 190, 190, 190, 182, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 16:36:57,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-21 16:36:57,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:36:57,921 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 16:36:57,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 16:36:57,922 INFO L85 PathProgramCache]: Analyzing trace with hash 936939345, now seen corresponding path program 9 times [2023-12-21 16:36:57,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 16:36:57,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686709630] [2023-12-21 16:36:57,923 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-21 16:36:57,923 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:36:57,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 16:36:57,924 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 16:36:57,926 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 (14)] Waiting until timeout for monitored process [2023-12-21 16:36:58,906 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2023-12-21 16:36:58,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 16:36:58,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-21 16:36:58,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 16:37:01,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-12-21 16:37:01,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 16:37:01,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-21 16:37:01,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-21 16:37:01,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-21 16:37:01,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-21 16:37:01,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-21 16:37:01,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-21 16:37:01,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-21 16:37:02,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-12-21 16:37:02,639 INFO L134 CoverageAnalysis]: Checked inductivity of 108110 backedges. 182 proven. 4278 refuted. 0 times theorem prover too weak. 103650 trivial. 0 not checked. [2023-12-21 16:37:02,639 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 16:37:04,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 76 [2023-12-21 16:37:05,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 344588270 treesize of output 344457198 [2023-12-21 16:37:06,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2023-12-21 16:37:07,460 INFO L134 CoverageAnalysis]: Checked inductivity of 108110 backedges. 0 proven. 4460 refuted. 0 times theorem prover too weak. 103650 trivial. 0 not checked. [2023-12-21 16:37:07,460 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 16:37:07,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686709630] [2023-12-21 16:37:07,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686709630] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 16:37:07,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 16:37:07,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2023-12-21 16:37:07,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320418961] [2023-12-21 16:37:07,461 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 16:37:07,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-21 16:37:07,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 16:37:07,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-21 16:37:07,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=656, Unknown=0, NotChecked=0, Total=812 [2023-12-21 16:37:07,462 INFO L87 Difference]: Start difference. First operand 7353 states and 9803 transitions. Second operand has 29 states, 28 states have (on average 2.75) internal successors, (77), 26 states have internal predecessors, (77), 1 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:37:12,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 16:37:12,273 INFO L93 Difference]: Finished difference Result 19296 states and 25743 transitions. [2023-12-21 16:37:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-12-21 16:37:12,274 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.75) internal successors, (77), 26 states have internal predecessors, (77), 1 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1150 [2023-12-21 16:37:12,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 16:37:12,314 INFO L225 Difference]: With dead ends: 19296 [2023-12-21 16:37:12,314 INFO L226 Difference]: Without dead ends: 19286 [2023-12-21 16:37:12,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2335 GetRequests, 2271 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 757 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1037, Invalid=3253, Unknown=0, NotChecked=0, Total=4290 [2023-12-21 16:37:12,320 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 571 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 16:37:12,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 1705 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 16:37:12,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19286 states. [2023-12-21 16:37:13,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19286 to 11629. [2023-12-21 16:37:13,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11629 states, 11623 states have (on average 1.333648799793513) internal successors, (15501), 11624 states have internal predecessors, (15501), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-21 16:37:13,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11629 states to 11629 states and 15507 transitions. [2023-12-21 16:37:13,115 INFO L78 Accepts]: Start accepts. Automaton has 11629 states and 15507 transitions. Word has length 1150 [2023-12-21 16:37:13,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 16:37:13,116 INFO L495 AbstractCegarLoop]: Abstraction has 11629 states and 15507 transitions. [2023-12-21 16:37:13,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.75) internal successors, (77), 26 states have internal predecessors, (77), 1 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:37:13,117 INFO L276 IsEmpty]: Start isEmpty. Operand 11629 states and 15507 transitions. [2023-12-21 16:37:13,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1151 [2023-12-21 16:37:13,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 16:37:13,140 INFO L195 NwaCegarLoop]: trace histogram [190, 190, 190, 190, 190, 174, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 16:37:13,145 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 [2023-12-21 16:37:13,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:37:13,346 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 16:37:13,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 16:37:13,346 INFO L85 PathProgramCache]: Analyzing trace with hash 863554641, now seen corresponding path program 10 times [2023-12-21 16:37:13,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 16:37:13,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545555219] [2023-12-21 16:37:13,348 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-21 16:37:13,348 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:37:13,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 16:37:13,349 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 16:37:13,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-21 16:37:15,004 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-21 16:37:15,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 16:37:15,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 2959 conjuncts, 192 conjunts are in the unsatisfiable core [2023-12-21 16:37:15,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 16:37:28,025 INFO L134 CoverageAnalysis]: Checked inductivity of 108110 backedges. 0 proven. 54055 refuted. 0 times theorem prover too weak. 54055 trivial. 0 not checked. [2023-12-21 16:37:28,025 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 16:38:46,805 INFO L134 CoverageAnalysis]: Checked inductivity of 108110 backedges. 0 proven. 54055 refuted. 0 times theorem prover too weak. 54055 trivial. 0 not checked. [2023-12-21 16:38:46,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 16:38:46,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545555219] [2023-12-21 16:38:46,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545555219] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 16:38:46,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 16:38:46,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192] total 383 [2023-12-21 16:38:46,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192317647] [2023-12-21 16:38:46,806 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 16:38:46,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-12-21 16:38:46,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 16:38:46,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-12-21 16:38:46,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37246, Invalid=109826, Unknown=0, NotChecked=0, Total=147072 [2023-12-21 16:38:46,825 INFO L87 Difference]: Start difference. First operand 11629 states and 15507 transitions. Second operand has 384 states, 384 states have (on average 3.0052083333333335) internal successors, (1154), 383 states have internal predecessors, (1154), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 16:40:09,575 WARN L293 SmtUtils]: Spent 8.42s on a formula simplification. DAG size of input: 574 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 16:40:33,665 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification. DAG size of input: 571 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 16:41:00,019 WARN L293 SmtUtils]: Spent 8.22s on a formula simplification. DAG size of input: 568 DAG size of output: 7 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-12-21 16:41:05,942 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 16:41:05,942 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 (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 16:41:05,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2023-12-21 16:41:05,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2302 GetRequests, 1916 SyntacticMatches, 0 SemanticMatches, 385 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 163.6s TimeCoverageRelationStatistics Valid=38398, Invalid=110984, Unknown=0, NotChecked=0, Total=149382 [2023-12-21 16:41:05,995 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 16588 mSDsluCounter, 36292 mSDsCounter, 0 mSdLazyCounter, 109642 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16588 SdHoareTripleChecker+Valid, 36483 SdHoareTripleChecker+Invalid, 109643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.2s IncrementalHoareTripleChecker+Time [2023-12-21 16:41:05,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16588 Valid, 36483 Invalid, 109643 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 109642 Invalid, 0 Unknown, 0 Unchecked, 53.2s Time] [2023-12-21 16:41:05,996 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 16:41:06,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-21 16:41:06,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 16:41:06,212 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (11629states) and FLOYD_HOARE automaton (currently 196 states, 384 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 387 known predicates. [2023-12-21 16:41:06,216 INFO L445 BasicCegarLoop]: Path program histogram: [10, 2, 1, 1] [2023-12-21 16:41:06,217 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 16:41:06,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 04:41:06 BoogieIcfgContainer [2023-12-21 16:41:06,218 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 16:41:06,219 INFO L158 Benchmark]: Toolchain (without parser) took 873903.04ms. Allocated memory was 274.7MB in the beginning and 1.2GB in the end (delta: 942.7MB). Free memory was 232.7MB in the beginning and 549.4MB in the end (delta: -316.7MB). Peak memory consumption was 627.2MB. Max. memory is 8.0GB. [2023-12-21 16:41:06,219 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 178.3MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 16:41:06,219 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.70ms. Allocated memory is still 274.7MB. Free memory was 232.7MB in the beginning and 220.8MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-21 16:41:06,219 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.61ms. Allocated memory is still 274.7MB. Free memory was 220.8MB in the beginning and 219.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-21 16:41:06,219 INFO L158 Benchmark]: Boogie Preprocessor took 49.65ms. Allocated memory is still 274.7MB. Free memory was 219.3MB in the beginning and 217.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 16:41:06,219 INFO L158 Benchmark]: RCFGBuilder took 412.45ms. Allocated memory is still 274.7MB. Free memory was 217.0MB in the beginning and 201.9MB in the end (delta: 15.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-21 16:41:06,220 INFO L158 Benchmark]: TraceAbstraction took 873146.10ms. Allocated memory was 274.7MB in the beginning and 1.2GB in the end (delta: 942.7MB). Free memory was 201.3MB in the beginning and 549.4MB in the end (delta: -348.1MB). Peak memory consumption was 595.7MB. Max. memory is 8.0GB. [2023-12-21 16:41:06,220 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 178.3MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 249.70ms. Allocated memory is still 274.7MB. Free memory was 232.7MB in the beginning and 220.8MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.61ms. Allocated memory is still 274.7MB. Free memory was 220.8MB in the beginning and 219.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 49.65ms. Allocated memory is still 274.7MB. Free memory was 219.3MB in the beginning and 217.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 412.45ms. Allocated memory is still 274.7MB. Free memory was 217.0MB in the beginning and 201.9MB in the end (delta: 15.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 873146.10ms. Allocated memory was 274.7MB in the beginning and 1.2GB in the end (delta: 942.7MB). Free memory was 201.3MB in the beginning and 549.4MB in the end (delta: -348.1MB). Peak memory consumption was 595.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 14]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 14). Cancelled while NwaCegarLoop was constructing difference of abstraction (11629states) and FLOYD_HOARE automaton (currently 196 states, 384 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 387 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 873.1s, OverallIterations: 14, TraceHistogramMax: 190, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.1s, AutomataDifference: 728.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66898 SdHoareTripleChecker+Valid, 113.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66858 mSDsluCounter, 66383 SdHoareTripleChecker+Invalid, 99.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65412 mSDsCounter, 12899 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 185864 IncrementalHoareTripleChecker+Invalid, 198763 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12899 mSolverCounterUnsat, 971 mSDtfsCounter, 185864 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7969 GetRequests, 6900 SyntacticMatches, 0 SemanticMatches, 1068 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6775 ImplicationChecksByTransitivity, 716.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11629occurred in iteration=13, InterpolantAutomatonStates: 493, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 8568 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 4.8s SatisfiabilityAnalysisTime, 133.0s InterpolantComputationTime, 3902 NumberOfCodeBlocks, 2564 NumberOfCodeBlocksAsserted, 65 NumberOfCheckSat, 7725 ConstructedInterpolants, 33 QuantifiedInterpolants, 38253 SizeOfPredicates, 56 NumberOfNonLiveVariables, 6914 ConjunctsInSsa, 476 ConjunctsInUnsatCore, 25 InterpolantComputations, 3 PerfectInterpolantSequences, 362727/515212 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