/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_password_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:49:33,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:49:33,146 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 06:49:33,150 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:49:33,151 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:49:33,171 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:49:33,172 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:49:33,172 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:49:33,172 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:49:33,175 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:49:33,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:49:33,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:49:33,176 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:49:33,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:49:33,177 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:49:33,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:49:33,178 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:49:33,178 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:49:33,178 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:49:33,178 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:49:33,178 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:49:33,179 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:49:33,179 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:49:33,179 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 06:49:33,179 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 06:49:33,179 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:49:33,179 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 06:49:33,180 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:49:33,180 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:49:33,180 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:49:33,181 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:49:33,181 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:49:33,181 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:49:33,181 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:49:33,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:49:33,181 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:49:33,181 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:49:33,182 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:49:33,182 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 06:49:33,182 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 06:49:33,182 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:49:33,182 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:49:33,182 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:49:33,182 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:49:33,183 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:49:33,183 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 06:49:33,183 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 06:49:33,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:49:33,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:49:33,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:49:33,389 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:49:33,389 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:49:33,390 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_password_ground.i [2023-12-16 06:49:34,547 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:49:34,699 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:49:34,699 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_password_ground.i [2023-12-16 06:49:34,707 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f216c0070/4a2daad76ee54930997d2bab5c58904f/FLAG4735f4428 [2023-12-16 06:49:34,719 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f216c0070/4a2daad76ee54930997d2bab5c58904f [2023-12-16 06:49:34,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:49:34,722 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:49:34,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:49:34,724 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:49:34,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:49:34,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:49:34" (1/1) ... [2023-12-16 06:49:34,729 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@221a0897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:49:34, skipping insertion in model container [2023-12-16 06:49:34,729 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:49:34" (1/1) ... [2023-12-16 06:49:34,746 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:49:34,871 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_password_ground.i[817,830] [2023-12-16 06:49:34,883 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:49:34,894 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:49:34,902 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_password_ground.i[817,830] [2023-12-16 06:49:34,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:49:34,917 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:49:34,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:49:34 WrapperNode [2023-12-16 06:49:34,917 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:49:34,918 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:49:34,918 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:49:34,918 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:49:34,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:49:34" (1/1) ... [2023-12-16 06:49:34,930 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:49:34" (1/1) ... [2023-12-16 06:49:34,943 INFO L138 Inliner]: procedures = 18, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2023-12-16 06:49:34,943 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:49:34,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:49:34,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:49:34,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:49:34,952 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:49:34" (1/1) ... [2023-12-16 06:49:34,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:49:34" (1/1) ... [2023-12-16 06:49:34,954 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:49:34" (1/1) ... [2023-12-16 06:49:34,961 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 3, 3]. 38 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2023-12-16 06:49:34,962 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:49:34" (1/1) ... [2023-12-16 06:49:34,962 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:49:34" (1/1) ... [2023-12-16 06:49:34,966 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:49:34" (1/1) ... [2023-12-16 06:49:34,968 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:49:34" (1/1) ... [2023-12-16 06:49:34,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:49:34" (1/1) ... [2023-12-16 06:49:34,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:49:34" (1/1) ... [2023-12-16 06:49:34,971 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:49:34,971 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:49:34,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:49:34,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:49:34,972 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:49:34" (1/1) ... [2023-12-16 06:49:34,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:49:34,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:49:35,044 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 06:49:35,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 06:49:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:49:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 06:49:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 06:49:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 06:49:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-16 06:49:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-16 06:49:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-16 06:49:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-16 06:49:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:49:35,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:49:35,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-16 06:49:35,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-16 06:49:35,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-16 06:49:35,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-16 06:49:35,121 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:49:35,122 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:49:35,282 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:49:35,318 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:49:35,318 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-16 06:49:35,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:49:35 BoogieIcfgContainer [2023-12-16 06:49:35,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:49:35,320 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:49:35,320 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:49:35,322 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:49:35,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:49:34" (1/3) ... [2023-12-16 06:49:35,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8ae939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:49:35, skipping insertion in model container [2023-12-16 06:49:35,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:49:34" (2/3) ... [2023-12-16 06:49:35,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8ae939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:49:35, skipping insertion in model container [2023-12-16 06:49:35,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:49:35" (3/3) ... [2023-12-16 06:49:35,323 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_password_ground.i [2023-12-16 06:49:35,335 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:49:35,335 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 06:49:35,362 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:49:35,384 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;@378980dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:49:35,385 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 06:49:35,387 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:35,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-16 06:49:35,397 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:49:35,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:49:35,397 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:49:35,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:49:35,402 INFO L85 PathProgramCache]: Analyzing trace with hash 672779549, now seen corresponding path program 1 times [2023-12-16 06:49:35,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:49:35,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273244048] [2023-12-16 06:49:35,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:49:35,411 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:49:35,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:49:35,413 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:49:35,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 06:49:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:49:35,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 06:49:35,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:49:35,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:49:35,580 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 06:49:35,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:49:35,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273244048] [2023-12-16 06:49:35,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273244048] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:49:35,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:49:35,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 06:49:35,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712754672] [2023-12-16 06:49:35,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:49:35,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 06:49:35,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:49:35,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 06:49:35,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 06:49:35,629 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:35,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:49:35,656 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2023-12-16 06:49:35,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 06:49:35,658 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-16 06:49:35,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:49:35,662 INFO L225 Difference]: With dead ends: 28 [2023-12-16 06:49:35,662 INFO L226 Difference]: Without dead ends: 12 [2023-12-16 06:49:35,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 06:49:35,667 INFO L413 NwaCegarLoop]: 15 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, 15 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 [2023-12-16 06:49:35,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:49:35,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-12-16 06:49:35,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-12-16 06:49:35,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:35,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2023-12-16 06:49:35,689 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 15 transitions. Word has length 8 [2023-12-16 06:49:35,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:49:35,689 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 15 transitions. [2023-12-16 06:49:35,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:35,690 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2023-12-16 06:49:35,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-16 06:49:35,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:49:35,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:49:35,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 06:49:35,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:49:35,893 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:49:35,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:49:35,893 INFO L85 PathProgramCache]: Analyzing trace with hash 662620818, now seen corresponding path program 1 times [2023-12-16 06:49:35,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:49:35,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [854371955] [2023-12-16 06:49:35,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:49:35,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:49:35,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:49:35,895 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:49:35,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 06:49:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:49:35,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 06:49:35,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:49:35,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:49:35,963 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 06:49:35,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:49:35,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [854371955] [2023-12-16 06:49:35,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [854371955] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:49:35,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:49:35,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 06:49:35,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550022999] [2023-12-16 06:49:35,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:49:35,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:49:35,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:49:35,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:49:35,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:49:35,966 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:35,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:49:35,989 INFO L93 Difference]: Finished difference Result 26 states and 34 transitions. [2023-12-16 06:49:35,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:49:35,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-16 06:49:35,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:49:35,990 INFO L225 Difference]: With dead ends: 26 [2023-12-16 06:49:35,990 INFO L226 Difference]: Without dead ends: 16 [2023-12-16 06:49:35,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:49:35,991 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:49:35,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 17 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:49:35,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-12-16 06:49:35,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2023-12-16 06:49:35,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:35,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2023-12-16 06:49:35,995 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 8 [2023-12-16 06:49:35,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:49:35,995 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2023-12-16 06:49:35,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:35,996 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2023-12-16 06:49:35,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-16 06:49:35,996 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:49:35,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:49:35,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 06:49:36,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:49:36,200 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:49:36,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:49:36,201 INFO L85 PathProgramCache]: Analyzing trace with hash -198997073, now seen corresponding path program 1 times [2023-12-16 06:49:36,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:49:36,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1808359794] [2023-12-16 06:49:36,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:49:36,202 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:49:36,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:49:36,205 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:49:36,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 06:49:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:49:36,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 06:49:36,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:49:36,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-16 06:49:36,271 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:49:36,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-16 06:49:36,289 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:49:36,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1808359794] [2023-12-16 06:49:36,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1808359794] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:49:36,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:49:36,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-16 06:49:36,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99718682] [2023-12-16 06:49:36,290 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:49:36,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:49:36,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:49:36,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:49:36,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:49:36,291 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:36,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:49:36,363 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2023-12-16 06:49:36,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:49:36,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-12-16 06:49:36,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:49:36,364 INFO L225 Difference]: With dead ends: 37 [2023-12-16 06:49:36,364 INFO L226 Difference]: Without dead ends: 26 [2023-12-16 06:49:36,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:49:36,365 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 18 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:49:36,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 33 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:49:36,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-12-16 06:49:36,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-12-16 06:49:36,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:36,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2023-12-16 06:49:36,369 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 12 [2023-12-16 06:49:36,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:49:36,370 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2023-12-16 06:49:36,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:36,370 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2023-12-16 06:49:36,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-16 06:49:36,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:49:36,370 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:49:36,388 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 (4)] Ended with exit code 0 [2023-12-16 06:49:36,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:49:36,573 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:49:36,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:49:36,573 INFO L85 PathProgramCache]: Analyzing trace with hash -64539822, now seen corresponding path program 2 times [2023-12-16 06:49:36,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:49:36,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465954034] [2023-12-16 06:49:36,574 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 06:49:36,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:49:36,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:49:36,575 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:49:36,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 06:49:36,638 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 06:49:36,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:49:36,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 06:49:36,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:49:36,673 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 06:49:36,673 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:49:36,747 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 06:49:36,747 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:49:36,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465954034] [2023-12-16 06:49:36,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1465954034] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:49:36,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:49:36,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-12-16 06:49:36,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481399849] [2023-12-16 06:49:36,748 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:49:36,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 06:49:36,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:49:36,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 06:49:36,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-16 06:49:36,749 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:37,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:49:37,019 INFO L93 Difference]: Finished difference Result 70 states and 99 transitions. [2023-12-16 06:49:37,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 06:49:37,020 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-12-16 06:49:37,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:49:37,021 INFO L225 Difference]: With dead ends: 70 [2023-12-16 06:49:37,021 INFO L226 Difference]: Without dead ends: 50 [2023-12-16 06:49:37,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-12-16 06:49:37,022 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 99 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:49:37,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 91 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:49:37,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-12-16 06:49:37,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-12-16 06:49:37,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.2653061224489797) internal successors, (62), 49 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:37,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2023-12-16 06:49:37,028 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 24 [2023-12-16 06:49:37,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:49:37,028 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2023-12-16 06:49:37,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:37,028 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2023-12-16 06:49:37,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-16 06:49:37,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:49:37,029 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:49:37,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 06:49:37,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:49:37,230 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:49:37,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:49:37,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1167565938, now seen corresponding path program 3 times [2023-12-16 06:49:37,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:49:37,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [669977461] [2023-12-16 06:49:37,231 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-16 06:49:37,231 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:49:37,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:49:37,233 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:49:37,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 06:49:37,310 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-16 06:49:37,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:49:37,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 06:49:37,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:49:37,337 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2023-12-16 06:49:37,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 06:49:37,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:49:37,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [669977461] [2023-12-16 06:49:37,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [669977461] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:49:37,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:49:37,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:49:37,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811340314] [2023-12-16 06:49:37,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:49:37,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:49:37,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:49:37,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:49:37,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:49:37,341 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:37,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:49:37,365 INFO L93 Difference]: Finished difference Result 85 states and 107 transitions. [2023-12-16 06:49:37,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:49:37,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2023-12-16 06:49:37,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:49:37,368 INFO L225 Difference]: With dead ends: 85 [2023-12-16 06:49:37,369 INFO L226 Difference]: Without dead ends: 50 [2023-12-16 06:49:37,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:49:37,374 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 2 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:49:37,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 25 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:49:37,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-12-16 06:49:37,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-12-16 06:49:37,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 49 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:37,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2023-12-16 06:49:37,386 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 48 [2023-12-16 06:49:37,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:49:37,386 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2023-12-16 06:49:37,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:37,387 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2023-12-16 06:49:37,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-16 06:49:37,388 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:49:37,388 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:49:37,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 06:49:37,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:49:37,591 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:49:37,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:49:37,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1855242290, now seen corresponding path program 1 times [2023-12-16 06:49:37,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:49:37,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372480472] [2023-12-16 06:49:37,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:49:37,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:49:37,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:49:37,594 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:49:37,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 06:49:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:49:37,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 06:49:37,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:49:37,849 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-12-16 06:49:37,849 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:49:38,164 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-12-16 06:49:38,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:49:38,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372480472] [2023-12-16 06:49:38,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372480472] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:49:38,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:49:38,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-12-16 06:49:38,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171480348] [2023-12-16 06:49:38,165 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:49:38,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-16 06:49:38,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:49:38,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-16 06:49:38,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2023-12-16 06:49:38,166 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:39,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:49:39,266 INFO L93 Difference]: Finished difference Result 136 states and 163 transitions. [2023-12-16 06:49:39,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-16 06:49:39,266 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2023-12-16 06:49:39,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:49:39,267 INFO L225 Difference]: With dead ends: 136 [2023-12-16 06:49:39,267 INFO L226 Difference]: Without dead ends: 98 [2023-12-16 06:49:39,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2023-12-16 06:49:39,268 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 260 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 06:49:39,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 194 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 06:49:39,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-12-16 06:49:39,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-12-16 06:49:39,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.0309278350515463) internal successors, (100), 97 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:39,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 100 transitions. [2023-12-16 06:49:39,275 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 100 transitions. Word has length 48 [2023-12-16 06:49:39,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:49:39,275 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 100 transitions. [2023-12-16 06:49:39,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:39,276 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 100 transitions. [2023-12-16 06:49:39,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 06:49:39,281 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:49:39,282 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:49:39,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 06:49:39,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:49:39,482 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:49:39,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:49:39,483 INFO L85 PathProgramCache]: Analyzing trace with hash 666054386, now seen corresponding path program 2 times [2023-12-16 06:49:39,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:49:39,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [112071431] [2023-12-16 06:49:39,483 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 06:49:39,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:49:39,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:49:39,484 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:49:39,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 06:49:39,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 06:49:39,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:49:39,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-16 06:49:39,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:49:39,920 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2023-12-16 06:49:39,920 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:49:41,479 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2023-12-16 06:49:41,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:49:41,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [112071431] [2023-12-16 06:49:41,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [112071431] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:49:41,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:49:41,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2023-12-16 06:49:41,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609100612] [2023-12-16 06:49:41,481 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:49:41,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-12-16 06:49:41,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:49:41,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-12-16 06:49:41,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2023-12-16 06:49:41,486 INFO L87 Difference]: Start difference. First operand 98 states and 100 transitions. Second operand has 48 states, 48 states have (on average 1.1875) internal successors, (57), 47 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:48,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:49:48,652 INFO L93 Difference]: Finished difference Result 268 states and 319 transitions. [2023-12-16 06:49:48,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-16 06:49:48,652 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 1.1875) internal successors, (57), 47 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-16 06:49:48,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:49:48,653 INFO L225 Difference]: With dead ends: 268 [2023-12-16 06:49:48,653 INFO L226 Difference]: Without dead ends: 194 [2023-12-16 06:49:48,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2023-12-16 06:49:48,655 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 1130 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 2363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:49:48,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 674 Invalid, 2363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 06:49:48,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-12-16 06:49:48,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2023-12-16 06:49:48,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 193 states have (on average 1.0155440414507773) internal successors, (196), 193 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:48,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 196 transitions. [2023-12-16 06:49:48,668 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 196 transitions. Word has length 96 [2023-12-16 06:49:48,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:49:48,668 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 196 transitions. [2023-12-16 06:49:48,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 1.1875) internal successors, (57), 47 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:48,668 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 196 transitions. [2023-12-16 06:49:48,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-16 06:49:48,669 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:49:48,669 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:49:48,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 06:49:48,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:49:48,870 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:49:48,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:49:48,871 INFO L85 PathProgramCache]: Analyzing trace with hash -464622478, now seen corresponding path program 3 times [2023-12-16 06:49:48,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:49:48,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089685756] [2023-12-16 06:49:48,876 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-16 06:49:48,876 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:49:48,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:49:48,884 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:49:48,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 06:49:49,027 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-16 06:49:49,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:49:49,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 06:49:49,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:49:50,030 INFO L134 CoverageAnalysis]: Checked inductivity of 4232 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4141 trivial. 0 not checked. [2023-12-16 06:49:50,030 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:49:50,721 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2023-12-16 06:49:50,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 25 [2023-12-16 06:49:50,741 INFO L134 CoverageAnalysis]: Checked inductivity of 4232 backedges. 45 proven. 46 refuted. 0 times theorem prover too weak. 4141 trivial. 0 not checked. [2023-12-16 06:49:50,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:49:50,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2089685756] [2023-12-16 06:49:50,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2089685756] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:49:50,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:49:50,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-12-16 06:49:50,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858396310] [2023-12-16 06:49:50,742 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:49:50,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 06:49:50,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:49:50,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 06:49:50,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-12-16 06:49:50,743 INFO L87 Difference]: Start difference. First operand 194 states and 196 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:50,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:49:50,875 INFO L93 Difference]: Finished difference Result 199 states and 201 transitions. [2023-12-16 06:49:50,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 06:49:50,876 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2023-12-16 06:49:50,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:49:50,877 INFO L225 Difference]: With dead ends: 199 [2023-12-16 06:49:50,877 INFO L226 Difference]: Without dead ends: 197 [2023-12-16 06:49:50,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2023-12-16 06:49:50,878 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 12 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:49:50,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 45 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:49:50,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-12-16 06:49:50,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 196. [2023-12-16 06:49:50,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 1.0153846153846153) internal successors, (198), 195 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:50,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 198 transitions. [2023-12-16 06:49:50,893 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 198 transitions. Word has length 192 [2023-12-16 06:49:50,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:49:50,893 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 198 transitions. [2023-12-16 06:49:50,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:49:50,893 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 198 transitions. [2023-12-16 06:49:50,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-16 06:49:50,894 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:49:50,894 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:49:50,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 06:49:51,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:49:51,099 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:49:51,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:49:51,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1116581327, now seen corresponding path program 1 times [2023-12-16 06:49:51,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:49:51,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533628276] [2023-12-16 06:49:51,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:49:51,100 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:49:51,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:49:51,121 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:49:51,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 06:49:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:49:51,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 48 conjunts are in the unsatisfiable core [2023-12-16 06:49:51,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:49:52,371 INFO L134 CoverageAnalysis]: Checked inductivity of 4234 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 3153 trivial. 0 not checked. [2023-12-16 06:49:52,371 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:49:56,984 INFO L134 CoverageAnalysis]: Checked inductivity of 4234 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 3153 trivial. 0 not checked. [2023-12-16 06:49:56,984 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 06:49:56,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533628276] [2023-12-16 06:49:56,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533628276] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:49:56,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 06:49:56,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 95 [2023-12-16 06:49:56,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47739192] [2023-12-16 06:49:56,985 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 06:49:56,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-12-16 06:49:56,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 06:49:56,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-12-16 06:49:56,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2398, Invalid=6722, Unknown=0, NotChecked=0, Total=9120 [2023-12-16 06:49:56,988 INFO L87 Difference]: Start difference. First operand 196 states and 198 transitions. Second operand has 96 states, 96 states have (on average 1.1145833333333333) internal successors, (107), 95 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:50:49,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:50:49,589 INFO L93 Difference]: Finished difference Result 536 states and 635 transitions. [2023-12-16 06:50:49,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-12-16 06:50:49,590 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 1.1145833333333333) internal successors, (107), 95 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2023-12-16 06:50:49,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:50:49,591 INFO L225 Difference]: With dead ends: 536 [2023-12-16 06:50:49,591 INFO L226 Difference]: Without dead ends: 388 [2023-12-16 06:50:49,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 49.9s TimeCoverageRelationStatistics Valid=6814, Invalid=13208, Unknown=0, NotChecked=0, Total=20022 [2023-12-16 06:50:49,595 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 4314 mSDsluCounter, 2473 mSDsCounter, 0 mSdLazyCounter, 7022 mSolverCounterSat, 2207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4314 SdHoareTripleChecker+Valid, 2528 SdHoareTripleChecker+Invalid, 9229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2207 IncrementalHoareTripleChecker+Valid, 7022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-12-16 06:50:49,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4314 Valid, 2528 Invalid, 9229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2207 Valid, 7022 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2023-12-16 06:50:49,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2023-12-16 06:50:49,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2023-12-16 06:50:49,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 387 states have (on average 1.0077519379844961) internal successors, (390), 387 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:50:49,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 390 transitions. [2023-12-16 06:50:49,651 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 390 transitions. Word has length 195 [2023-12-16 06:50:49,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:50:49,651 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 390 transitions. [2023-12-16 06:50:49,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 1.1145833333333333) internal successors, (107), 95 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:50:49,651 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 390 transitions. [2023-12-16 06:50:49,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2023-12-16 06:50:49,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:50:49,654 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 94, 94, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:50:49,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 06:50:49,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:50:49,861 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:50:49,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:50:49,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1800917711, now seen corresponding path program 2 times [2023-12-16 06:50:49,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 06:50:49,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759911934] [2023-12-16 06:50:49,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 06:50:49,862 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:50:49,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 06:50:49,870 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 06:50:49,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 06:50:50,598 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 06:50:50,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:50:50,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 1267 conjuncts, 96 conjunts are in the unsatisfiable core [2023-12-16 06:50:50,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 06:50:51,859 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 06:50:51,876 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 (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:50:51,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 06:50:51,887 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:50:52,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 06:50:52,060 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 388 with TraceHistMax 94,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 57 known predicates. [2023-12-16 06:50:52,064 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 2, 1, 1] [2023-12-16 06:50:52,065 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:50:52,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:50:52 BoogieIcfgContainer [2023-12-16 06:50:52,067 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:50:52,067 INFO L158 Benchmark]: Toolchain (without parser) took 77345.12ms. Allocated memory was 256.9MB in the beginning and 308.3MB in the end (delta: 51.4MB). Free memory was 204.4MB in the beginning and 149.2MB in the end (delta: 55.2MB). Peak memory consumption was 107.6MB. Max. memory is 8.0GB. [2023-12-16 06:50:52,067 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 213.9MB. Free memory is still 163.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:50:52,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.51ms. Allocated memory is still 256.9MB. Free memory was 204.1MB in the beginning and 192.8MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-16 06:50:52,068 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.78ms. Allocated memory is still 256.9MB. Free memory was 192.8MB in the beginning and 191.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-16 06:50:52,068 INFO L158 Benchmark]: Boogie Preprocessor took 27.27ms. Allocated memory is still 256.9MB. Free memory was 191.3MB in the beginning and 189.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 06:50:52,068 INFO L158 Benchmark]: RCFGBuilder took 347.17ms. Allocated memory is still 256.9MB. Free memory was 188.9MB in the beginning and 175.3MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-16 06:50:52,068 INFO L158 Benchmark]: TraceAbstraction took 76747.17ms. Allocated memory was 256.9MB in the beginning and 308.3MB in the end (delta: 51.4MB). Free memory was 174.5MB in the beginning and 149.2MB in the end (delta: 25.3MB). Peak memory consumption was 78.2MB. Max. memory is 8.0GB. [2023-12-16 06:50:52,069 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 213.9MB. Free memory is still 163.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 193.51ms. Allocated memory is still 256.9MB. Free memory was 204.1MB in the beginning and 192.8MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.78ms. Allocated memory is still 256.9MB. Free memory was 192.8MB in the beginning and 191.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.27ms. Allocated memory is still 256.9MB. Free memory was 191.3MB in the beginning and 189.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 347.17ms. Allocated memory is still 256.9MB. Free memory was 188.9MB in the beginning and 175.3MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 76747.17ms. Allocated memory was 256.9MB in the beginning and 308.3MB in the end (delta: 51.4MB). Free memory was 174.5MB in the beginning and 149.2MB in the end (delta: 25.3MB). Peak memory consumption was 78.2MB. 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: 13]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 13). Cancelled while NwaCegarLoop was analyzing trace of length 388 with TraceHistMax 94,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 57 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 76.7s, OverallIterations: 10, TraceHistogramMax: 94, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 61.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5838 SdHoareTripleChecker+Valid, 10.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5838 mSDsluCounter, 3622 SdHoareTripleChecker+Invalid, 9.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3440 mSDsCounter, 2998 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9482 IncrementalHoareTripleChecker+Invalid, 12480 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2998 mSolverCounterUnsat, 182 mSDtfsCounter, 9482 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1270 GetRequests, 994 SyntacticMatches, 0 SemanticMatches, 276 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1357 ImplicationChecksByTransitivity, 57.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=388occurred in iteration=9, InterpolantAutomatonStates: 204, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.7s InterpolantComputationTime, 631 NumberOfCodeBlocks, 422 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1183 ConstructedInterpolants, 0 QuantifiedInterpolants, 5814 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1497 ConjunctsInSsa, 111 ConjunctsInUnsatCore, 15 InterpolantComputations, 3 PerfectInterpolantSequences, 16599/19536 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