/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_operatoramount_amount10_file-92.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 06:22:14,885 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 06:22:14,952 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 06:22:14,956 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 06:22:14,956 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 06:22:14,977 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 06:22:14,978 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 06:22:14,978 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 06:22:14,979 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 06:22:14,982 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 06:22:14,982 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 06:22:14,983 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 06:22:14,983 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 06:22:14,984 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 06:22:14,984 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 06:22:14,985 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 06:22:14,985 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 06:22:14,985 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 06:22:14,985 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 06:22:14,986 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 06:22:14,986 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 06:22:14,986 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 06:22:14,987 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 06:22:14,987 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 06:22:14,987 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 06:22:14,987 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 06:22:14,987 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 06:22:14,987 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 06:22:14,988 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 06:22:14,988 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 06:22:14,988 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 06:22:14,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 06:22:14,989 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 06:22:14,989 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 06:22:14,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 06:22:14,989 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 06:22:14,989 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 06:22:14,989 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 06:22:14,989 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 06:22:14,990 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 06:22:14,990 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 06:22:14,990 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 06:22:14,990 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 06:22:14,990 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 06:22:14,991 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 06:22:14,991 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 06:22:14,991 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 06:22:15,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 06:22:15,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 06:22:15,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 06:22:15,225 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 06:22:15,225 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 06:22:15,226 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-92.i [2023-12-24 06:22:16,186 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 06:22:16,341 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 06:22:16,342 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-92.i [2023-12-24 06:22:16,347 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e4cb434b/c9cc0328684e4b10b1f7b8de414764af/FLAG660913d54 [2023-12-24 06:22:16,357 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e4cb434b/c9cc0328684e4b10b1f7b8de414764af [2023-12-24 06:22:16,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 06:22:16,359 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 06:22:16,360 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 06:22:16,360 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 06:22:16,363 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 06:22:16,364 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 06:22:16" (1/1) ... [2023-12-24 06:22:16,365 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2bfd66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:22:16, skipping insertion in model container [2023-12-24 06:22:16,365 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 06:22:16" (1/1) ... [2023-12-24 06:22:16,391 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 06:22:16,515 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_operatoramount_amount10_file-92.i[915,928] [2023-12-24 06:22:16,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 06:22:16,562 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 06:22:16,575 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_operatoramount_amount10_file-92.i[915,928] [2023-12-24 06:22:16,596 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 06:22:16,607 INFO L206 MainTranslator]: Completed translation [2023-12-24 06:22:16,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:22:16 WrapperNode [2023-12-24 06:22:16,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 06:22:16,608 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 06:22:16,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 06:22:16,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 06:22:16,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:22:16" (1/1) ... [2023-12-24 06:22:16,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:22:16" (1/1) ... [2023-12-24 06:22:16,648 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 71 [2023-12-24 06:22:16,649 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 06:22:16,650 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 06:22:16,650 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 06:22:16,650 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 06:22:16,657 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:22:16" (1/1) ... [2023-12-24 06:22:16,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:22:16" (1/1) ... [2023-12-24 06:22:16,664 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:22:16" (1/1) ... [2023-12-24 06:22:16,681 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]. [2023-12-24 06:22:16,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:22:16" (1/1) ... [2023-12-24 06:22:16,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:22:16" (1/1) ... [2023-12-24 06:22:16,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:22:16" (1/1) ... [2023-12-24 06:22:16,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:22:16" (1/1) ... [2023-12-24 06:22:16,709 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:22:16" (1/1) ... [2023-12-24 06:22:16,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:22:16" (1/1) ... [2023-12-24 06:22:16,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 06:22:16,712 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 06:22:16,712 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 06:22:16,713 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 06:22:16,713 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:22:16" (1/1) ... [2023-12-24 06:22:16,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 06:22:16,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 06:22:16,744 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) [2023-12-24 06:22:16,761 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 [2023-12-24 06:22:16,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 06:22:16,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 06:22:16,774 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 06:22:16,774 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 06:22:16,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 06:22:16,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 06:22:16,851 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 06:22:16,853 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 06:22:16,978 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 06:22:17,023 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 06:22:17,024 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 06:22:17,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 06:22:17 BoogieIcfgContainer [2023-12-24 06:22:17,024 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 06:22:17,026 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 06:22:17,026 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 06:22:17,028 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 06:22:17,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 06:22:16" (1/3) ... [2023-12-24 06:22:17,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7536468f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 06:22:17, skipping insertion in model container [2023-12-24 06:22:17,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:22:16" (2/3) ... [2023-12-24 06:22:17,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7536468f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 06:22:17, skipping insertion in model container [2023-12-24 06:22:17,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 06:22:17" (3/3) ... [2023-12-24 06:22:17,030 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-92.i [2023-12-24 06:22:17,042 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 06:22:17,043 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 06:22:17,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 06:22:17,075 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;@7c33d7df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 06:22:17,075 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 06:22:17,078 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-24 06:22:17,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-24 06:22:17,084 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:22:17,084 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:22:17,084 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:22:17,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:22:17,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1240637461, now seen corresponding path program 1 times [2023-12-24 06:22:17,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:22:17,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012835966] [2023-12-24 06:22:17,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:22:17,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 06:22:17,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:22:17,099 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) [2023-12-24 06:22:17,102 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 [2023-12-24 06:22:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:22:17,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 06:22:17,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:22:17,200 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-12-24 06:22:17,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 06:22:17,201 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:22:17,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012835966] [2023-12-24 06:22:17,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012835966] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 06:22:17,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 06:22:17,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 06:22:17,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45087310] [2023-12-24 06:22:17,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:22:17,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 06:22:17,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:22:17,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 06:22:17,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 06:22:17,237 INFO L87 Difference]: Start difference. First operand has 31 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-24 06:22:17,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:22:17,270 INFO L93 Difference]: Finished difference Result 59 states and 98 transitions. [2023-12-24 06:22:17,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 06:22:17,273 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 63 [2023-12-24 06:22:17,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:22:17,277 INFO L225 Difference]: With dead ends: 59 [2023-12-24 06:22:17,278 INFO L226 Difference]: Without dead ends: 29 [2023-12-24 06:22:17,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 06:22:17,284 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 06:22:17,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 06:22:17,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-12-24 06:22:17,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-12-24 06:22:17,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-24 06:22:17,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2023-12-24 06:22:17,319 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 63 [2023-12-24 06:22:17,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:22:17,319 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2023-12-24 06:22:17,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-24 06:22:17,320 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2023-12-24 06:22:17,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-24 06:22:17,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:22:17,323 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:22:17,329 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 [2023-12-24 06:22:17,526 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 [2023-12-24 06:22:17,527 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:22:17,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:22:17,528 INFO L85 PathProgramCache]: Analyzing trace with hash -829700395, now seen corresponding path program 1 times [2023-12-24 06:22:17,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:22:17,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502088242] [2023-12-24 06:22:17,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:22:17,530 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 [2023-12-24 06:22:17,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:22:17,531 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) [2023-12-24 06:22:17,536 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 [2023-12-24 06:22:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:22:17,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-24 06:22:17,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:22:19,040 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-24 06:22:19,040 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 06:22:19,040 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:22:19,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502088242] [2023-12-24 06:22:19,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502088242] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 06:22:19,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 06:22:19,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 06:22:19,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701081918] [2023-12-24 06:22:19,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:22:19,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 06:22:19,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:22:19,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 06:22:19,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-24 06:22:19,046 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-24 06:22:19,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:22:19,200 INFO L93 Difference]: Finished difference Result 60 states and 76 transitions. [2023-12-24 06:22:19,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 06:22:19,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 63 [2023-12-24 06:22:19,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:22:19,204 INFO L225 Difference]: With dead ends: 60 [2023-12-24 06:22:19,204 INFO L226 Difference]: Without dead ends: 58 [2023-12-24 06:22:19,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-24 06:22:19,205 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 32 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 06:22:19,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 145 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 06:22:19,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-24 06:22:19,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2023-12-24 06:22:19,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 36 states have internal predecessors, (39), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-24 06:22:19,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 71 transitions. [2023-12-24 06:22:19,225 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 71 transitions. Word has length 63 [2023-12-24 06:22:19,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:22:19,226 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 71 transitions. [2023-12-24 06:22:19,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-24 06:22:19,226 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 71 transitions. [2023-12-24 06:22:19,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-24 06:22:19,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:22:19,227 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:22:19,232 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 [2023-12-24 06:22:19,430 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 [2023-12-24 06:22:19,431 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:22:19,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:22:19,431 INFO L85 PathProgramCache]: Analyzing trace with hash -829640813, now seen corresponding path program 1 times [2023-12-24 06:22:19,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:22:19,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682011294] [2023-12-24 06:22:19,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:22:19,432 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 [2023-12-24 06:22:19,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:22:19,433 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) [2023-12-24 06:22:19,437 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 [2023-12-24 06:22:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:22:19,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 06:22:19,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:22:20,054 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-24 06:22:20,055 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 06:22:20,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:22:20,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682011294] [2023-12-24 06:22:20,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1682011294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 06:22:20,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 06:22:20,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-24 06:22:20,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874562263] [2023-12-24 06:22:20,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:22:20,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 06:22:20,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:22:20,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 06:22:20,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-24 06:22:20,057 INFO L87 Difference]: Start difference. First operand 54 states and 71 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-24 06:22:20,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:22:20,241 INFO L93 Difference]: Finished difference Result 65 states and 82 transitions. [2023-12-24 06:22:20,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 06:22:20,242 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 63 [2023-12-24 06:22:20,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:22:20,243 INFO L225 Difference]: With dead ends: 65 [2023-12-24 06:22:20,243 INFO L226 Difference]: Without dead ends: 63 [2023-12-24 06:22:20,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-24 06:22:20,243 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 36 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 06:22:20,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 184 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 06:22:20,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-12-24 06:22:20,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2023-12-24 06:22:20,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 38 states have (on average 1.105263157894737) internal successors, (42), 40 states have internal predecessors, (42), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-24 06:22:20,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 78 transitions. [2023-12-24 06:22:20,251 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 78 transitions. Word has length 63 [2023-12-24 06:22:20,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:22:20,251 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 78 transitions. [2023-12-24 06:22:20,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-24 06:22:20,251 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 78 transitions. [2023-12-24 06:22:20,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-24 06:22:20,252 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:22:20,252 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:22:20,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-24 06:22:20,452 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 [2023-12-24 06:22:20,453 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:22:20,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:22:20,454 INFO L85 PathProgramCache]: Analyzing trace with hash -772442093, now seen corresponding path program 1 times [2023-12-24 06:22:20,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:22:20,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257122854] [2023-12-24 06:22:20,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:22:20,454 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 [2023-12-24 06:22:20,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:22:20,458 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) [2023-12-24 06:22:20,458 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 [2023-12-24 06:22:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:22:20,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-24 06:22:20,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:22:21,173 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-24 06:22:21,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 06:22:21,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:22:21,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257122854] [2023-12-24 06:22:21,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257122854] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 06:22:21,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 06:22:21,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 06:22:21,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618465124] [2023-12-24 06:22:21,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:22:21,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 06:22:21,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:22:21,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 06:22:21,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-24 06:22:21,175 INFO L87 Difference]: Start difference. First operand 61 states and 78 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-24 06:22:21,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:22:21,222 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2023-12-24 06:22:21,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 06:22:21,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 63 [2023-12-24 06:22:21,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:22:21,226 INFO L225 Difference]: With dead ends: 68 [2023-12-24 06:22:21,227 INFO L226 Difference]: Without dead ends: 66 [2023-12-24 06:22:21,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-24 06:22:21,229 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 13 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 06:22:21,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 115 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 06:22:21,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-12-24 06:22:21,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63. [2023-12-24 06:22:21,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 40 states have (on average 1.1) internal successors, (44), 42 states have internal predecessors, (44), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-24 06:22:21,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2023-12-24 06:22:21,236 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 63 [2023-12-24 06:22:21,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:22:21,236 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2023-12-24 06:22:21,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-24 06:22:21,236 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2023-12-24 06:22:21,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-24 06:22:21,237 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:22:21,237 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:22:21,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-24 06:22:21,443 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 [2023-12-24 06:22:21,443 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:22:21,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:22:21,444 INFO L85 PathProgramCache]: Analyzing trace with hash -772382511, now seen corresponding path program 1 times [2023-12-24 06:22:21,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:22:21,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2044989434] [2023-12-24 06:22:21,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:22:21,445 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 [2023-12-24 06:22:21,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:22:21,446 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) [2023-12-24 06:22:21,448 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 [2023-12-24 06:22:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:22:21,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 06:22:21,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:22:21,563 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-24 06:22:21,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 06:22:21,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:22:21,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2044989434] [2023-12-24 06:22:21,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2044989434] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 06:22:21,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 06:22:21,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 06:22:21,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406786386] [2023-12-24 06:22:21,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:22:21,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 06:22:21,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:22:21,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 06:22:21,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 06:22:21,565 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-24 06:22:21,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:22:21,604 INFO L93 Difference]: Finished difference Result 151 states and 196 transitions. [2023-12-24 06:22:21,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 06:22:21,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 63 [2023-12-24 06:22:21,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:22:21,607 INFO L225 Difference]: With dead ends: 151 [2023-12-24 06:22:21,607 INFO L226 Difference]: Without dead ends: 89 [2023-12-24 06:22:21,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 06:22:21,609 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 6 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 06:22:21,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 109 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 06:22:21,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-12-24 06:22:21,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-12-24 06:22:21,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 55 states have (on average 1.0909090909090908) internal successors, (60), 57 states have internal predecessors, (60), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-24 06:22:21,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 116 transitions. [2023-12-24 06:22:21,634 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 116 transitions. Word has length 63 [2023-12-24 06:22:21,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:22:21,637 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 116 transitions. [2023-12-24 06:22:21,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-24 06:22:21,638 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 116 transitions. [2023-12-24 06:22:21,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-24 06:22:21,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:22:21,640 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:22:21,651 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 [2023-12-24 06:22:21,843 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 [2023-12-24 06:22:21,843 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:22:21,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:22:21,844 INFO L85 PathProgramCache]: Analyzing trace with hash 341161157, now seen corresponding path program 1 times [2023-12-24 06:22:21,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:22:21,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760131631] [2023-12-24 06:22:21,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:22:21,844 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 [2023-12-24 06:22:21,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:22:21,847 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) [2023-12-24 06:22:21,874 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 [2023-12-24 06:22:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:22:21,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 06:22:21,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:22:22,151 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 420 proven. 1 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-12-24 06:22:22,151 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 06:22:22,292 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-24 06:22:22,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:22:22,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760131631] [2023-12-24 06:22:22,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760131631] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 06:22:22,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 06:22:22,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-24 06:22:22,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197541706] [2023-12-24 06:22:22,292 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 06:22:22,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-24 06:22:22,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:22:22,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-24 06:22:22,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-24 06:22:22,294 INFO L87 Difference]: Start difference. First operand 89 states and 116 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-24 06:22:22,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:22:22,422 INFO L93 Difference]: Finished difference Result 175 states and 230 transitions. [2023-12-24 06:22:22,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 06:22:22,422 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 125 [2023-12-24 06:22:22,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:22:22,423 INFO L225 Difference]: With dead ends: 175 [2023-12-24 06:22:22,423 INFO L226 Difference]: Without dead ends: 113 [2023-12-24 06:22:22,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-24 06:22:22,424 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 3 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 06:22:22,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 145 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 06:22:22,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-24 06:22:22,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 87. [2023-12-24 06:22:22,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 53 states have (on average 1.0943396226415094) internal successors, (58), 55 states have internal predecessors, (58), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-24 06:22:22,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 114 transitions. [2023-12-24 06:22:22,433 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 114 transitions. Word has length 125 [2023-12-24 06:22:22,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:22:22,433 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 114 transitions. [2023-12-24 06:22:22,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-24 06:22:22,433 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 114 transitions. [2023-12-24 06:22:22,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-24 06:22:22,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:22:22,435 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:22:22,442 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 (7)] Ended with exit code 0 [2023-12-24 06:22:22,638 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 [2023-12-24 06:22:22,638 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:22:22,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:22:22,639 INFO L85 PathProgramCache]: Analyzing trace with hash -390806269, now seen corresponding path program 1 times [2023-12-24 06:22:22,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:22:22,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523585929] [2023-12-24 06:22:22,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:22:22,639 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 [2023-12-24 06:22:22,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:22:22,642 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) [2023-12-24 06:22:22,681 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 [2023-12-24 06:22:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:22:22,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 06:22:22,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:22:23,386 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 419 proven. 2 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-12-24 06:22:23,386 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 06:22:23,859 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-24 06:22:23,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:22:23,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523585929] [2023-12-24 06:22:23,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523585929] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 06:22:23,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 06:22:23,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-24 06:22:23,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038445234] [2023-12-24 06:22:23,860 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 06:22:23,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 06:22:23,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:22:23,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 06:22:23,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-24 06:22:23,861 INFO L87 Difference]: Start difference. First operand 87 states and 114 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-24 06:22:24,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:22:24,047 INFO L93 Difference]: Finished difference Result 171 states and 226 transitions. [2023-12-24 06:22:24,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-24 06:22:24,048 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 125 [2023-12-24 06:22:24,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:22:24,048 INFO L225 Difference]: With dead ends: 171 [2023-12-24 06:22:24,048 INFO L226 Difference]: Without dead ends: 0 [2023-12-24 06:22:24,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 241 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-12-24 06:22:24,049 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 6 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 06:22:24,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 236 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 06:22:24,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-24 06:22:24,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-24 06:22:24,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-12-24 06:22:24,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-24 06:22:24,050 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 125 [2023-12-24 06:22:24,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:22:24,050 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-24 06:22:24,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-24 06:22:24,050 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-24 06:22:24,050 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-24 06:22:24,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 06:22:24,059 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 [2023-12-24 06:22:24,253 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 [2023-12-24 06:22:24,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-24 06:22:24,319 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 39) no Hoare annotation was computed. [2023-12-24 06:22:24,319 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2023-12-24 06:22:24,319 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-24 06:22:24,319 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-24 06:22:24,319 INFO L902 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: true [2023-12-24 06:22:24,319 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-24 06:22:24,319 INFO L902 garLoopResultBuilder]: At program point L48-1(line 48) the Hoare annotation is: true [2023-12-24 06:22:24,319 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 38) no Hoare annotation was computed. [2023-12-24 06:22:24,319 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 34) no Hoare annotation was computed. [2023-12-24 06:22:24,319 INFO L899 garLoopResultBuilder]: For program point L32-2(lines 32 34) no Hoare annotation was computed. [2023-12-24 06:22:24,320 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-24 06:22:24,320 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-12-24 06:22:24,320 INFO L902 garLoopResultBuilder]: At program point L45(line 45) the Hoare annotation is: true [2023-12-24 06:22:24,320 INFO L902 garLoopResultBuilder]: At program point L45-1(line 45) the Hoare annotation is: true [2023-12-24 06:22:24,320 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-24 06:22:24,320 INFO L895 garLoopResultBuilder]: At program point L66-2(lines 66 72) the Hoare annotation is: (or (= ~var_1_2~0 (_ bv0 8)) (= ((_ extract 7 0) (bvadd ((_ zero_extend 24) ~var_1_7~0) (bvneg ((_ zero_extend 24) ~var_1_8~0)) (bvneg ((_ zero_extend 24) ~var_1_9~0)))) ~var_1_6~0) (bvsge (let ((.cse0 ((_ zero_extend 24) ~var_1_6~0))) (bvmul .cse0 .cse0)) (_ bv16 32))) [2023-12-24 06:22:24,320 INFO L899 garLoopResultBuilder]: For program point L66-3(lines 66 72) no Hoare annotation was computed. [2023-12-24 06:22:24,320 INFO L902 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: true [2023-12-24 06:22:24,320 INFO L902 garLoopResultBuilder]: At program point L54-1(line 54) the Hoare annotation is: true [2023-12-24 06:22:24,320 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-12-24 06:22:24,320 INFO L902 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: true [2023-12-24 06:22:24,320 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-24 06:22:24,320 INFO L902 garLoopResultBuilder]: At program point L42-1(line 42) the Hoare annotation is: true [2023-12-24 06:22:24,320 INFO L899 garLoopResultBuilder]: For program point L55(lines 40 56) no Hoare annotation was computed. [2023-12-24 06:22:24,320 INFO L902 garLoopResultBuilder]: At program point L51(line 51) the Hoare annotation is: true [2023-12-24 06:22:24,320 INFO L902 garLoopResultBuilder]: At program point L51-1(line 51) the Hoare annotation is: true [2023-12-24 06:22:24,321 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2023-12-24 06:22:24,321 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-24 06:22:24,321 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-24 06:22:24,321 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-24 06:22:24,321 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-24 06:22:24,323 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:22:24,324 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 06:22:24,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 06:22:24 BoogieIcfgContainer [2023-12-24 06:22:24,331 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 06:22:24,331 INFO L158 Benchmark]: Toolchain (without parser) took 7972.07ms. Allocated memory was 216.0MB in the beginning and 483.4MB in the end (delta: 267.4MB). Free memory was 155.6MB in the beginning and 405.4MB in the end (delta: -249.8MB). Peak memory consumption was 18.4MB. Max. memory is 8.0GB. [2023-12-24 06:22:24,333 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 216.0MB. Free memory was 168.1MB in the beginning and 167.9MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 06:22:24,333 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.48ms. Allocated memory is still 216.0MB. Free memory was 155.4MB in the beginning and 143.3MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-24 06:22:24,333 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.67ms. Allocated memory is still 216.0MB. Free memory was 143.1MB in the beginning and 141.4MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-24 06:22:24,333 INFO L158 Benchmark]: Boogie Preprocessor took 62.25ms. Allocated memory is still 216.0MB. Free memory was 141.4MB in the beginning and 139.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 06:22:24,334 INFO L158 Benchmark]: RCFGBuilder took 311.91ms. Allocated memory was 216.0MB in the beginning and 278.9MB in the end (delta: 62.9MB). Free memory was 139.2MB in the beginning and 238.0MB in the end (delta: -98.8MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. [2023-12-24 06:22:24,334 INFO L158 Benchmark]: TraceAbstraction took 7305.23ms. Allocated memory was 278.9MB in the beginning and 483.4MB in the end (delta: 204.5MB). Free memory was 236.9MB in the beginning and 405.4MB in the end (delta: -168.5MB). Peak memory consumption was 36.5MB. Max. memory is 8.0GB. [2023-12-24 06:22:24,336 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 216.0MB. Free memory was 168.1MB in the beginning and 167.9MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 247.48ms. Allocated memory is still 216.0MB. Free memory was 155.4MB in the beginning and 143.3MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.67ms. Allocated memory is still 216.0MB. Free memory was 143.1MB in the beginning and 141.4MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.25ms. Allocated memory is still 216.0MB. Free memory was 141.4MB in the beginning and 139.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 311.91ms. Allocated memory was 216.0MB in the beginning and 278.9MB in the end (delta: 62.9MB). Free memory was 139.2MB in the beginning and 238.0MB in the end (delta: -98.8MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. * TraceAbstraction took 7305.23ms. Allocated memory was 278.9MB in the beginning and 483.4MB in the end (delta: 204.5MB). Free memory was 236.9MB in the beginning and 405.4MB in the end (delta: -168.5MB). Peak memory consumption was 36.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.3s, OverallIterations: 7, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 96 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 96 mSDsluCounter, 971 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 644 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 339 IncrementalHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 327 mSDtfsCounter, 339 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 816 GetRequests, 782 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=5, InterpolantAutomatonStates: 38, 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, 7 MinimizatonAttempts, 35 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 113 PreInvPairs, 145 NumberOfFragments, 34 HoareAnnotationTreeSize, 113 FormulaSimplifications, 157 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FormulaSimplificationsInter, 226 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 565 NumberOfCodeBlocks, 565 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 806 ConstructedInterpolants, 1 QuantifiedInterpolants, 2257 SizeOfPredicates, 52 NumberOfNonLiveVariables, 921 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 4019/4024 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: (((var_1_2 == 0) || ((((var_1_7 + -(var_1_8)) % 4294967296) & 127) == var_1_6)) || ((var_1_6 * var_1_6) >= 16)) RESULT: Ultimate proved your program to be correct! [2023-12-24 06:22:24,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...