/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-64bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d8_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 21:38:53,041 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 21:38:53,083 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-12-16 21:38:53,086 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 21:38:53,087 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 21:38:53,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 21:38:53,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 21:38:53,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 21:38:53,103 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 21:38:53,103 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 21:38:53,103 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 21:38:53,103 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 21:38:53,104 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 21:38:53,104 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 21:38:53,104 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 21:38:53,105 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 21:38:53,105 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 21:38:53,105 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 21:38:53,105 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 21:38:53,105 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 21:38:53,106 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 21:38:53,106 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 21:38:53,106 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 21:38:53,106 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 21:38:53,107 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 21:38:53,107 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 21:38:53,107 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 21:38:53,107 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 21:38:53,107 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 21:38:53,108 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 21:38:53,108 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 21:38:53,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 21:38:53,108 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 21:38:53,108 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 21:38:53,109 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 21:38:53,109 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 21:38:53,109 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 21:38:53,109 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 21:38:53,109 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 21:38:53,109 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 21:38:53,109 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 21:38:53,110 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 21:38:53,110 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 21:38:53,110 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 21:38:53,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 21:38:53,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 21:38:53,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 21:38:53,279 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 21:38:53,279 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 21:38:53,280 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d8_e0.c [2023-12-16 21:38:54,384 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 21:38:54,609 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 21:38:54,610 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d8_e0.c [2023-12-16 21:38:54,625 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0054e3c9/0cb9fe94cc2e49cfadd37c992c6c71c6/FLAGab87c9855 [2023-12-16 21:38:54,635 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0054e3c9/0cb9fe94cc2e49cfadd37c992c6c71c6 [2023-12-16 21:38:54,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 21:38:54,637 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 21:38:54,638 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 21:38:54,638 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 21:38:54,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 21:38:54,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:38:54" (1/1) ... [2023-12-16 21:38:54,643 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@130ac464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:54, skipping insertion in model container [2023-12-16 21:38:54,643 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:38:54" (1/1) ... [2023-12-16 21:38:54,674 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 21:38:54,815 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d8_e0.c[1279,1292] [2023-12-16 21:38:54,945 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 21:38:54,954 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 21:38:54,963 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d8_e0.c[1279,1292] [2023-12-16 21:38:55,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 21:38:55,029 INFO L206 MainTranslator]: Completed translation [2023-12-16 21:38:55,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:55 WrapperNode [2023-12-16 21:38:55,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 21:38:55,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 21:38:55,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 21:38:55,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 21:38:55,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:55" (1/1) ... [2023-12-16 21:38:55,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:55" (1/1) ... [2023-12-16 21:38:55,092 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 641 [2023-12-16 21:38:55,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 21:38:55,093 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 21:38:55,100 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 21:38:55,100 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 21:38:55,108 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:55" (1/1) ... [2023-12-16 21:38:55,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:55" (1/1) ... [2023-12-16 21:38:55,114 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:55" (1/1) ... [2023-12-16 21:38:55,139 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 21:38:55,140 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:55" (1/1) ... [2023-12-16 21:38:55,140 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:55" (1/1) ... [2023-12-16 21:38:55,152 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:55" (1/1) ... [2023-12-16 21:38:55,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:55" (1/1) ... [2023-12-16 21:38:55,157 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:55" (1/1) ... [2023-12-16 21:38:55,159 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:55" (1/1) ... [2023-12-16 21:38:55,164 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 21:38:55,165 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 21:38:55,165 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 21:38:55,165 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 21:38:55,165 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:55" (1/1) ... [2023-12-16 21:38:55,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 21:38:55,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 21:38:55,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 21:38:55,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 21:38:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 21:38:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 21:38:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 21:38:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 21:38:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 21:38:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 21:38:55,429 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 21:38:55,430 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 21:38:55,887 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 21:38:55,925 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 21:38:55,925 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 21:38:55,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:38:55 BoogieIcfgContainer [2023-12-16 21:38:55,925 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 21:38:55,927 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 21:38:55,927 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 21:38:55,929 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 21:38:55,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:38:54" (1/3) ... [2023-12-16 21:38:55,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c057d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:38:55, skipping insertion in model container [2023-12-16 21:38:55,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:55" (2/3) ... [2023-12-16 21:38:55,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c057d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:38:55, skipping insertion in model container [2023-12-16 21:38:55,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:38:55" (3/3) ... [2023-12-16 21:38:55,931 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w64_d8_e0.c [2023-12-16 21:38:55,944 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 21:38:55,944 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 21:38:55,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 21:38:55,983 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;@3b2ffa1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 21:38:55,983 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 21:38:55,986 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 21:38:55,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-16 21:38:55,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:38:55,991 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 21:38:55,992 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:38:56,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:38:56,008 INFO L85 PathProgramCache]: Analyzing trace with hash -311484247, now seen corresponding path program 1 times [2023-12-16 21:38:56,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:38:56,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [20629518] [2023-12-16 21:38:56,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:38:56,020 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 21:38:56,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:38:56,022 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 21:38:56,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 21:38:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 21:38:56,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 21:38:56,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:38:56,344 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 21:38:56,344 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 21:38:56,344 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 21:38:56,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [20629518] [2023-12-16 21:38:56,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [20629518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 21:38:56,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 21:38:56,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 21:38:56,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141656171] [2023-12-16 21:38:56,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 21:38:56,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 21:38:56,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 21:38:56,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 21:38:56,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 21:38:56,376 INFO L87 Difference]: Start difference. First operand has 18 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 21:38:56,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 21:38:56,397 INFO L93 Difference]: Finished difference Result 33 states and 47 transitions. [2023-12-16 21:38:56,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 21:38:56,400 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2023-12-16 21:38:56,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 21:38:56,404 INFO L225 Difference]: With dead ends: 33 [2023-12-16 21:38:56,404 INFO L226 Difference]: Without dead ends: 16 [2023-12-16 21:38:56,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 21:38:56,409 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 21:38:56,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 21:38:56,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-12-16 21:38:56,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-12-16 21:38:56,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 21:38:56,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2023-12-16 21:38:56,438 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 22 [2023-12-16 21:38:56,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 21:38:56,438 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2023-12-16 21:38:56,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 21:38:56,438 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-16 21:38:56,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-16 21:38:56,439 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:38:56,439 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 21:38:56,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 21:38:56,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 21:38:56,644 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:38:56,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:38:56,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1990205213, now seen corresponding path program 1 times [2023-12-16 21:38:56,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:38:56,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930918022] [2023-12-16 21:38:56,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:38:56,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 21:38:56,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:38:56,648 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 21:38:56,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 21:38:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 21:38:56,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 21:38:56,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:38:57,047 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 21:38:57,048 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 21:38:57,048 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 21:38:57,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930918022] [2023-12-16 21:38:57,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930918022] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 21:38:57,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 21:38:57,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 21:38:57,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900277070] [2023-12-16 21:38:57,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 21:38:57,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 21:38:57,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 21:38:57,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 21:38:57,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 21:38:57,055 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 21:38:57,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 21:38:57,172 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2023-12-16 21:38:57,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 21:38:57,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2023-12-16 21:38:57,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 21:38:57,174 INFO L225 Difference]: With dead ends: 27 [2023-12-16 21:38:57,174 INFO L226 Difference]: Without dead ends: 25 [2023-12-16 21:38:57,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 21:38:57,175 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 21:38:57,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 33 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 21:38:57,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-12-16 21:38:57,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2023-12-16 21:38:57,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-16 21:38:57,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2023-12-16 21:38:57,180 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 22 [2023-12-16 21:38:57,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 21:38:57,181 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2023-12-16 21:38:57,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 21:38:57,182 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2023-12-16 21:38:57,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-16 21:38:57,183 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:38:57,183 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-12-16 21:38:57,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 21:38:57,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 21:38:57,399 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:38:57,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:38:57,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1333456143, now seen corresponding path program 1 times [2023-12-16 21:38:57,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:38:57,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455779708] [2023-12-16 21:38:57,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:38:57,401 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 21:38:57,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:38:57,402 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 21:38:57,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 21:38:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 21:38:58,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 62 conjunts are in the unsatisfiable core [2023-12-16 21:38:58,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:38:58,714 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-16 21:38:58,714 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 21:38:59,385 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 21:38:59,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455779708] [2023-12-16 21:38:59,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455779708] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 21:38:59,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2059414554] [2023-12-16 21:38:59,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:38:59,385 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 21:38:59,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 21:38:59,430 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 21:38:59,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-16 21:39:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 21:39:00,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-16 21:39:00,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:39:00,308 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-16 21:39:00,308 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 21:39:00,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2059414554] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 21:39:00,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 21:39:00,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2023-12-16 21:39:00,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17234322] [2023-12-16 21:39:00,426 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 21:39:00,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 21:39:00,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 21:39:00,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 21:39:00,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-12-16 21:39:00,428 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 13 states, 11 states have (on average 2.727272727272727) internal successors, (30), 13 states have internal predecessors, (30), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 6 states have call successors, (12) [2023-12-16 21:39:00,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 21:39:00,922 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2023-12-16 21:39:00,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 21:39:00,923 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.727272727272727) internal successors, (30), 13 states have internal predecessors, (30), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 6 states have call successors, (12) Word has length 43 [2023-12-16 21:39:00,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 21:39:00,923 INFO L225 Difference]: With dead ends: 36 [2023-12-16 21:39:00,924 INFO L226 Difference]: Without dead ends: 34 [2023-12-16 21:39:00,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2023-12-16 21:39:00,925 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 25 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 21:39:00,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 83 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 21:39:00,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-12-16 21:39:00,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2023-12-16 21:39:00,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-16 21:39:00,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2023-12-16 21:39:00,931 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 43 [2023-12-16 21:39:00,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 21:39:00,931 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2023-12-16 21:39:00,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.727272727272727) internal successors, (30), 13 states have internal predecessors, (30), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 6 states have call successors, (12) [2023-12-16 21:39:00,932 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2023-12-16 21:39:00,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 21:39:00,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:39:00,933 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2023-12-16 21:39:00,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 21:39:01,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-16 21:39:01,350 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 21:39:01,350 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:39:01,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:39:01,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1547916707, now seen corresponding path program 2 times [2023-12-16 21:39:01,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:39:01,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1563474078] [2023-12-16 21:39:01,357 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 21:39:01,357 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 21:39:01,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:39:01,358 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 21:39:01,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 21:39:02,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 21:39:02,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 21:39:02,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 173 conjunts are in the unsatisfiable core [2023-12-16 21:39:02,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:39:06,626 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 15 proven. 64 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-12-16 21:39:06,626 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 21:39:07,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 21:39:07,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1563474078] [2023-12-16 21:39:07,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1563474078] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 21:39:07,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [196588103] [2023-12-16 21:39:07,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 21:39:07,138 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 21:39:07,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 21:39:07,139 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 21:39:07,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-16 21:39:08,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 21:39:08,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 21:39:08,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 161 conjunts are in the unsatisfiable core [2023-12-16 21:39:08,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:39:11,067 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 12 proven. 55 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-12-16 21:39:11,068 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 21:39:11,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [196588103] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 21:39:11,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 21:39:11,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 21 [2023-12-16 21:39:11,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829224483] [2023-12-16 21:39:11,487 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 21:39:11,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-16 21:39:11,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 21:39:11,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-16 21:39:11,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2023-12-16 21:39:11,489 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 21 states, 16 states have (on average 2.625) internal successors, (42), 21 states have internal predecessors, (42), 11 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 11 states have call successors, (18) [2023-12-16 21:39:15,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 21:39:17,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 21:39:17,035 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2023-12-16 21:39:17,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 21:39:17,035 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.625) internal successors, (42), 21 states have internal predecessors, (42), 11 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 11 states have call successors, (18) Word has length 64 [2023-12-16 21:39:17,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 21:39:17,036 INFO L225 Difference]: With dead ends: 45 [2023-12-16 21:39:17,036 INFO L226 Difference]: Without dead ends: 43 [2023-12-16 21:39:17,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=180, Invalid=942, Unknown=0, NotChecked=0, Total=1122 [2023-12-16 21:39:17,037 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 37 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-16 21:39:17,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 163 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 318 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2023-12-16 21:39:17,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-12-16 21:39:17,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2023-12-16 21:39:17,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-16 21:39:17,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2023-12-16 21:39:17,046 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 64 [2023-12-16 21:39:17,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 21:39:17,046 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2023-12-16 21:39:17,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.625) internal successors, (42), 21 states have internal predecessors, (42), 11 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 11 states have call successors, (18) [2023-12-16 21:39:17,046 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2023-12-16 21:39:17,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 21:39:17,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:39:17,047 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1] [2023-12-16 21:39:17,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-16 21:39:17,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 21:39:17,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 21:39:17,458 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:39:17,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:39:17,458 INFO L85 PathProgramCache]: Analyzing trace with hash 375264817, now seen corresponding path program 3 times [2023-12-16 21:39:17,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:39:17,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860956795] [2023-12-16 21:39:17,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-16 21:39:17,459 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 21:39:17,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:39:17,460 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 21:39:17,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 21:39:21,491 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-12-16 21:39:21,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 21:39:21,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 1668 conjuncts, 437 conjunts are in the unsatisfiable core [2023-12-16 21:39:21,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 21:40:07,292 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 21:40:07,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 21:40:07,322 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 21:40:07,322 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 21:40:07,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 21:40:07,509 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 86 with TraceHistMax 12,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-5-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-28-4-5-4-3-4-2-4-3-4-1 context. [2023-12-16 21:40:07,513 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2023-12-16 21:40:07,515 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 21:40:07,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 09:40:07 BoogieIcfgContainer [2023-12-16 21:40:07,517 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 21:40:07,517 INFO L158 Benchmark]: Toolchain (without parser) took 72880.03ms. Allocated memory was 168.8MB in the beginning and 1.1GB in the end (delta: 926.9MB). Free memory was 134.2MB in the beginning and 580.3MB in the end (delta: -446.1MB). Peak memory consumption was 663.9MB. Max. memory is 8.0GB. [2023-12-16 21:40:07,518 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 168.8MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 21:40:07,520 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.18ms. Allocated memory is still 168.8MB. Free memory was 133.8MB in the beginning and 107.5MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-16 21:40:07,521 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.81ms. Allocated memory is still 168.8MB. Free memory was 107.5MB in the beginning and 102.2MB in the end (delta: 5.4MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 21:40:07,521 INFO L158 Benchmark]: Boogie Preprocessor took 70.94ms. Allocated memory is still 168.8MB. Free memory was 102.2MB in the beginning and 95.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 21:40:07,521 INFO L158 Benchmark]: RCFGBuilder took 760.56ms. Allocated memory is still 168.8MB. Free memory was 95.9MB in the beginning and 103.7MB in the end (delta: -7.8MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-16 21:40:07,521 INFO L158 Benchmark]: TraceAbstraction took 71590.52ms. Allocated memory was 168.8MB in the beginning and 1.1GB in the end (delta: 926.9MB). Free memory was 102.7MB in the beginning and 580.3MB in the end (delta: -477.7MB). Peak memory consumption was 632.9MB. Max. memory is 8.0GB. [2023-12-16 21:40:07,522 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 168.8MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 391.18ms. Allocated memory is still 168.8MB. Free memory was 133.8MB in the beginning and 107.5MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.81ms. Allocated memory is still 168.8MB. Free memory was 107.5MB in the beginning and 102.2MB in the end (delta: 5.4MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 70.94ms. Allocated memory is still 168.8MB. Free memory was 102.2MB in the beginning and 95.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 760.56ms. Allocated memory is still 168.8MB. Free memory was 95.9MB in the beginning and 103.7MB in the end (delta: -7.8MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * TraceAbstraction took 71590.52ms. Allocated memory was 168.8MB in the beginning and 1.1GB in the end (delta: 926.9MB). Free memory was 102.7MB in the beginning and 580.3MB in the end (delta: -477.7MB). Peak memory consumption was 632.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was analyzing trace of length 86 with TraceHistMax 12,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-5-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-28-4-5-4-3-4-2-4-3-4-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 71.5s, OverallIterations: 5, TraceHistogramMax: 12, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 296 SdHoareTripleChecker+Invalid, 5.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 248 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 496 IncrementalHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 48 mSDtfsCounter, 496 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 287 GetRequests, 230 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=4, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 258 NumberOfCodeBlocks, 258 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 252 ConstructedInterpolants, 22 QuantifiedInterpolants, 7593 SizeOfPredicates, 488 NumberOfNonLiveVariables, 4482 ConjunctsInSsa, 457 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 333/498 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown