/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/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-0.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 13:40:08,032 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 13:40:08,099 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 13:40:08,104 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 13:40:08,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 13:40:08,126 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 13:40:08,126 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 13:40:08,126 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 13:40:08,127 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 13:40:08,129 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 13:40:08,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 13:40:08,130 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 13:40:08,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 13:40:08,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 13:40:08,132 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 13:40:08,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 13:40:08,132 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 13:40:08,132 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 13:40:08,132 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 13:40:08,133 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 13:40:08,133 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 13:40:08,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 13:40:08,134 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 13:40:08,134 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 13:40:08,134 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 13:40:08,134 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 13:40:08,134 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 13:40:08,135 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 13:40:08,135 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 13:40:08,135 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 13:40:08,136 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 13:40:08,136 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 13:40:08,136 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 13:40:08,136 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 13:40:08,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 13:40:08,136 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 13:40:08,136 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 13:40:08,136 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 13:40:08,136 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 13:40:08,136 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 13:40:08,137 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 13:40:08,137 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 13:40:08,137 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 13:40:08,137 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 13:40:08,137 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 13:40:08,137 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 13:40:08,137 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 13:40:08,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 13:40:08,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 13:40:08,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 13:40:08,325 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 13:40:08,325 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 13:40:08,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-0.i [2023-12-16 13:40:09,290 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 13:40:09,472 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 13:40:09,472 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-0.i [2023-12-16 13:40:09,479 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9847e5a04/44f931f037be45048459a150a231402a/FLAGace81d5e0 [2023-12-16 13:40:09,489 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9847e5a04/44f931f037be45048459a150a231402a [2023-12-16 13:40:09,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 13:40:09,492 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 13:40:09,493 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 13:40:09,493 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 13:40:09,496 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 13:40:09,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:40:09" (1/1) ... [2023-12-16 13:40:09,498 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f19761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:40:09, skipping insertion in model container [2023-12-16 13:40:09,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:40:09" (1/1) ... [2023-12-16 13:40:09,521 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 13:40:09,617 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-0.i[915,928] [2023-12-16 13:40:09,666 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 13:40:09,682 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 13:40:09,690 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-0.i[915,928] [2023-12-16 13:40:09,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 13:40:09,736 INFO L206 MainTranslator]: Completed translation [2023-12-16 13:40:09,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:40:09 WrapperNode [2023-12-16 13:40:09,737 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 13:40:09,738 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 13:40:09,738 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 13:40:09,738 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 13:40:09,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:40:09" (1/1) ... [2023-12-16 13:40:09,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:40:09" (1/1) ... [2023-12-16 13:40:09,776 INFO L138 Inliner]: procedures = 27, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 175 [2023-12-16 13:40:09,776 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 13:40:09,777 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 13:40:09,777 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 13:40:09,777 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 13:40:09,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:40:09" (1/1) ... [2023-12-16 13:40:09,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:40:09" (1/1) ... [2023-12-16 13:40:09,788 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:40:09" (1/1) ... [2023-12-16 13:40:09,806 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 13:40:09,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:40:09" (1/1) ... [2023-12-16 13:40:09,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:40:09" (1/1) ... [2023-12-16 13:40:09,822 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:40:09" (1/1) ... [2023-12-16 13:40:09,824 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:40:09" (1/1) ... [2023-12-16 13:40:09,826 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:40:09" (1/1) ... [2023-12-16 13:40:09,828 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:40:09" (1/1) ... [2023-12-16 13:40:09,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 13:40:09,835 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 13:40:09,835 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 13:40:09,835 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 13:40:09,835 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:40:09" (1/1) ... [2023-12-16 13:40:09,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 13:40:09,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 13:40:09,893 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 13:40:09,940 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 13:40:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 13:40:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 13:40:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 13:40:09,955 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 13:40:09,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 13:40:09,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 13:40:10,049 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 13:40:10,052 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 13:40:24,842 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 13:40:24,920 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 13:40:24,921 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 13:40:24,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:40:24 BoogieIcfgContainer [2023-12-16 13:40:24,921 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 13:40:24,922 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 13:40:24,922 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 13:40:24,925 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 13:40:24,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:40:09" (1/3) ... [2023-12-16 13:40:24,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b568949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:40:24, skipping insertion in model container [2023-12-16 13:40:24,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:40:09" (2/3) ... [2023-12-16 13:40:24,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b568949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:40:24, skipping insertion in model container [2023-12-16 13:40:24,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:40:24" (3/3) ... [2023-12-16 13:40:24,926 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-0.i [2023-12-16 13:40:24,937 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 13:40:24,937 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 13:40:24,967 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 13:40:24,971 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;@d62c4ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 13:40:24,971 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 13:40:24,974 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 47 states have internal predecessors, (68), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-16 13:40:24,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-16 13:40:24,983 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:40:24,984 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:40:24,984 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:40:24,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:40:24,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1698641697, now seen corresponding path program 1 times [2023-12-16 13:40:24,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:40:24,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184960629] [2023-12-16 13:40:24,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:40:24,997 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 13:40:24,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:40:25,000 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 13:40:25,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 13:40:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:40:25,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 13:40:25,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:40:25,566 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2023-12-16 13:40:25,566 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 13:40:25,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:40:25,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [184960629] [2023-12-16 13:40:25,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [184960629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 13:40:25,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 13:40:25,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 13:40:25,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35082527] [2023-12-16 13:40:25,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 13:40:25,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 13:40:25,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:40:25,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 13:40:25,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 13:40:25,601 INFO L87 Difference]: Start difference. First operand has 71 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 47 states have internal predecessors, (68), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-16 13:40:29,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:40:29,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:40:29,820 INFO L93 Difference]: Finished difference Result 138 states and 242 transitions. [2023-12-16 13:40:29,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 13:40:29,883 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 144 [2023-12-16 13:40:29,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:40:29,889 INFO L225 Difference]: With dead ends: 138 [2023-12-16 13:40:29,889 INFO L226 Difference]: Without dead ends: 68 [2023-12-16 13:40:29,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 143 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 13:40:29,896 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-16 13:40:29,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 101 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-12-16 13:40:29,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-12-16 13:40:29,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-12-16 13:40:29,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 44 states have internal predecessors, (60), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-16 13:40:29,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 104 transitions. [2023-12-16 13:40:29,970 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 104 transitions. Word has length 144 [2023-12-16 13:40:29,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:40:29,971 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 104 transitions. [2023-12-16 13:40:29,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-16 13:40:29,971 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 104 transitions. [2023-12-16 13:40:29,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-16 13:40:29,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:40:29,975 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:40:29,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 13:40:30,176 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 13:40:30,176 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:40:30,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:40:30,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1424300069, now seen corresponding path program 1 times [2023-12-16 13:40:30,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:40:30,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [890235693] [2023-12-16 13:40:30,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:40:30,178 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 13:40:30,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:40:30,180 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 13:40:30,185 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 13:40:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:40:30,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 13:40:30,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:40:31,761 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 483 proven. 30 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2023-12-16 13:40:31,761 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 13:40:32,240 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-16 13:40:32,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:40:32,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [890235693] [2023-12-16 13:40:32,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [890235693] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 13:40:32,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 13:40:32,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-12-16 13:40:32,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907057425] [2023-12-16 13:40:32,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 13:40:32,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 13:40:32,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:40:32,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 13:40:32,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-16 13:40:32,246 INFO L87 Difference]: Start difference. First operand 68 states and 104 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-16 13:40:38,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-16 13:40:42,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-16 13:40:46,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-16 13:40:51,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:40:55,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:40:59,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-16 13:41:03,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:41:04,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:41:04,798 INFO L93 Difference]: Finished difference Result 310 states and 472 transitions. [2023-12-16 13:41:04,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 13:41:04,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 144 [2023-12-16 13:41:04,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:41:04,803 INFO L225 Difference]: With dead ends: 310 [2023-12-16 13:41:04,803 INFO L226 Difference]: Without dead ends: 243 [2023-12-16 13:41:04,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 13:41:04,805 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 258 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 90 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2023-12-16 13:41:04,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 390 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 127 Invalid, 7 Unknown, 0 Unchecked, 32.4s Time] [2023-12-16 13:41:04,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-12-16 13:41:04,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 71. [2023-12-16 13:41:04,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 47 states have internal predecessors, (64), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-16 13:41:04,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 108 transitions. [2023-12-16 13:41:04,831 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 108 transitions. Word has length 144 [2023-12-16 13:41:04,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:41:04,833 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 108 transitions. [2023-12-16 13:41:04,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-16 13:41:04,833 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 108 transitions. [2023-12-16 13:41:04,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-16 13:41:04,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:41:04,835 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:41:04,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 13:41:05,035 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 13:41:05,036 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:41:05,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:41:05,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1817327079, now seen corresponding path program 1 times [2023-12-16 13:41:05,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:41:05,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820687268] [2023-12-16 13:41:05,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:41:05,053 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 13:41:05,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:41:05,115 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 13:41:05,122 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 13:41:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:41:05,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-16 13:41:05,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 13:41:27,423 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 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 13:41:27,424 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 13:41:27,451 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 13:41:27,470 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 13:41:27,653 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 13:41:27,654 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 145 with TraceHistMax 22,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-12-2-1 context. [2023-12-16 13:41:27,662 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 13:41:27,665 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 13:41:27,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:41:27 BoogieIcfgContainer [2023-12-16 13:41:27,667 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 13:41:27,667 INFO L158 Benchmark]: Toolchain (without parser) took 78175.04ms. Allocated memory is still 343.9MB. Free memory was 299.2MB in the beginning and 122.0MB in the end (delta: 177.2MB). Peak memory consumption was 178.7MB. Max. memory is 8.0GB. [2023-12-16 13:41:27,667 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 233.8MB. Free memory is still 184.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 13:41:27,668 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.18ms. Allocated memory is still 343.9MB. Free memory was 298.8MB in the beginning and 282.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 13:41:27,668 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.60ms. Allocated memory is still 343.9MB. Free memory was 282.1MB in the beginning and 279.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 13:41:27,668 INFO L158 Benchmark]: Boogie Preprocessor took 57.24ms. Allocated memory is still 343.9MB. Free memory was 279.4MB in the beginning and 274.4MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 13:41:27,669 INFO L158 Benchmark]: RCFGBuilder took 15086.59ms. Allocated memory is still 343.9MB. Free memory was 274.4MB in the beginning and 303.5MB in the end (delta: -29.1MB). Peak memory consumption was 31.3MB. Max. memory is 8.0GB. [2023-12-16 13:41:27,669 INFO L158 Benchmark]: TraceAbstraction took 62744.33ms. Allocated memory is still 343.9MB. Free memory was 303.0MB in the beginning and 122.0MB in the end (delta: 181.0MB). Peak memory consumption was 181.0MB. Max. memory is 8.0GB. [2023-12-16 13:41:27,671 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 233.8MB. Free memory is still 184.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 244.18ms. Allocated memory is still 343.9MB. Free memory was 298.8MB in the beginning and 282.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.60ms. Allocated memory is still 343.9MB. Free memory was 282.1MB in the beginning and 279.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.24ms. Allocated memory is still 343.9MB. Free memory was 279.4MB in the beginning and 274.4MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 15086.59ms. Allocated memory is still 343.9MB. Free memory was 274.4MB in the beginning and 303.5MB in the end (delta: -29.1MB). Peak memory consumption was 31.3MB. Max. memory is 8.0GB. * TraceAbstraction took 62744.33ms. Allocated memory is still 343.9MB. Free memory was 303.0MB in the beginning and 122.0MB in the end (delta: 181.0MB). Peak memory consumption was 181.0MB. 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: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 145 with TraceHistMax 22,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-12-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-12-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 62.7s, OverallIterations: 3, TraceHistogramMax: 22, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 36.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 258 SdHoareTripleChecker+Valid, 36.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 258 mSDsluCounter, 491 SdHoareTripleChecker+Invalid, 36.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 234 mSDsCounter, 90 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 90 mSolverCounterUnsat, 257 mSDtfsCounter, 129 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 431 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 2 MinimizatonAttempts, 172 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 288 NumberOfCodeBlocks, 288 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 429 ConstructedInterpolants, 3 QuantifiedInterpolants, 730 SizeOfPredicates, 7 NumberOfNonLiveVariables, 498 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 2742/2772 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