/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.arbitrated_top_n2_w64_d128_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 21:01:11,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 21:01:12,038 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 21:01:12,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 21:01:12,043 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 21:01:12,064 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 21:01:12,065 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 21:01:12,065 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 21:01:12,066 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 21:01:12,069 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 21:01:12,069 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 21:01:12,069 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 21:01:12,070 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 21:01:12,070 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 21:01:12,071 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 21:01:12,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 21:01:12,071 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 21:01:12,071 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 21:01:12,071 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 21:01:12,072 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 21:01:12,072 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 21:01:12,072 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 21:01:12,072 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 21:01:12,072 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 21:01:12,073 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 21:01:12,073 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 21:01:12,073 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 21:01:12,073 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 21:01:12,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 21:01:12,074 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 21:01:12,074 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 21:01:12,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 21:01:12,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 21:01:12,075 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 21:01:12,075 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 21:01:12,075 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 21:01:12,075 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 21:01:12,075 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 21:01:12,075 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 21:01:12,075 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 21:01:12,076 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 21:01:12,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 21:01:12,076 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 21:01:12,076 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 21:01:12,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 21:01:12,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 21:01:12,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 21:01:12,311 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 21:01:12,312 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 21:01:12,312 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w64_d128_e0.c [2023-12-16 21:01:13,468 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 21:01:13,801 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 21:01:13,802 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w64_d128_e0.c [2023-12-16 21:01:13,831 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/480fa1b45/37019fb0db404363a2025cd5013b4ca9/FLAGcdb7399a2 [2023-12-16 21:01:13,841 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/480fa1b45/37019fb0db404363a2025cd5013b4ca9 [2023-12-16 21:01:13,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 21:01:13,844 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 21:01:13,846 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 21:01:13,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 21:01:13,849 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 21:01:13,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:01:13" (1/1) ... [2023-12-16 21:01:13,851 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aa06eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:01:13, skipping insertion in model container [2023-12-16 21:01:13,851 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:01:13" (1/1) ... [2023-12-16 21:01:13,938 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 21:01:14,161 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.arbitrated_top_n2_w64_d128_e0.c[1326,1339] [2023-12-16 21:01:14,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 21:01:14,743 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 21:01:14,751 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.arbitrated_top_n2_w64_d128_e0.c[1326,1339] [2023-12-16 21:01:15,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 21:01:15,086 INFO L206 MainTranslator]: Completed translation [2023-12-16 21:01:15,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:01:15 WrapperNode [2023-12-16 21:01:15,086 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 21:01:15,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 21:01:15,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 21:01:15,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 21:01:15,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:01:15" (1/1) ... [2023-12-16 21:01:15,168 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:01:15" (1/1) ... [2023-12-16 21:01:15,458 INFO L138 Inliner]: procedures = 18, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 9009 [2023-12-16 21:01:15,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 21:01:15,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 21:01:15,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 21:01:15,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 21:01:15,467 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:01:15" (1/1) ... [2023-12-16 21:01:15,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:01:15" (1/1) ... [2023-12-16 21:01:15,515 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:01:15" (1/1) ... [2023-12-16 21:01:15,599 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 21:01:15,600 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:01:15" (1/1) ... [2023-12-16 21:01:15,600 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:01:15" (1/1) ... [2023-12-16 21:01:15,735 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:01:15" (1/1) ... [2023-12-16 21:01:15,761 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:01:15" (1/1) ... [2023-12-16 21:01:15,780 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:01:15" (1/1) ... [2023-12-16 21:01:15,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:01:15" (1/1) ... [2023-12-16 21:01:15,835 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 21:01:15,836 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 21:01:15,836 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 21:01:15,836 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 21:01:15,837 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:01:15" (1/1) ... [2023-12-16 21:01:15,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 21:01:15,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 21:01:15,868 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 21:01:15,884 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 21:01:15,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 21:01:15,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 21:01:15,891 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 21:01:15,891 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 21:01:15,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 21:01:15,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 21:01:16,835 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 21:01:16,837 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 21:01:31,378 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 21:01:31,726 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 21:01:31,727 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 21:01:31,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:01:31 BoogieIcfgContainer [2023-12-16 21:01:31,727 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 21:01:31,729 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 21:01:31,729 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 21:01:31,731 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 21:01:31,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:01:13" (1/3) ... [2023-12-16 21:01:31,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566dd397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:01:31, skipping insertion in model container [2023-12-16 21:01:31,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:01:15" (2/3) ... [2023-12-16 21:01:31,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566dd397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:01:31, skipping insertion in model container [2023-12-16 21:01:31,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:01:31" (3/3) ... [2023-12-16 21:01:31,734 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n2_w64_d128_e0.c [2023-12-16 21:01:31,747 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 21:01:31,748 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 21:01:31,789 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 21:01:31,796 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;@680d7251, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 21:01:31,796 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 21:01:31,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-16 21:01:31,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-16 21:01:31,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:01:31,808 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 21:01:31,809 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:01:31,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:01:31,814 INFO L85 PathProgramCache]: Analyzing trace with hash 871459935, now seen corresponding path program 1 times [2023-12-16 21:01:31,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:01:31,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128213382] [2023-12-16 21:01:31,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:01:31,829 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 21:01:31,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:01:31,843 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 21:01:31,869 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 21:01:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 21:01:43,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 3209 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 21:01:43,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:01:43,510 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-16 21:01:43,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 21:01:43,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 21:01:43,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128213382] [2023-12-16 21:01:43,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1128213382] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 21:01:43,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 21:01:43,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 21:01:43,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790468061] [2023-12-16 21:01:43,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 21:01:43,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 21:01:43,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 21:01:43,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 21:01:43,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 21:01:43,539 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 21:01:48,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 21:01:50,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 21:01:50,136 INFO L93 Difference]: Finished difference Result 66 states and 109 transitions. [2023-12-16 21:01:50,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 21:01:50,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 46 [2023-12-16 21:01:50,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 21:01:50,143 INFO L225 Difference]: With dead ends: 66 [2023-12-16 21:01:50,143 INFO L226 Difference]: Without dead ends: 41 [2023-12-16 21:01:50,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 21:01:50,149 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 3 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-16 21:01:50,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 57 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2023-12-16 21:01:50,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-12-16 21:01:50,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2023-12-16 21:01:50,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 21:01:50,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 53 transitions. [2023-12-16 21:01:50,187 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 53 transitions. Word has length 46 [2023-12-16 21:01:50,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 21:01:50,189 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 53 transitions. [2023-12-16 21:01:50,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 21:01:50,189 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 53 transitions. [2023-12-16 21:01:50,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 21:01:50,193 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:01:50,194 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 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] [2023-12-16 21:01:50,257 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 (2)] Forceful destruction successful, exit code 0 [2023-12-16 21:01:50,420 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 21:01:50,420 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:01:50,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:01:50,421 INFO L85 PathProgramCache]: Analyzing trace with hash 455665793, now seen corresponding path program 1 times [2023-12-16 21:01:50,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:01:50,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015622662] [2023-12-16 21:01:50,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:01:50,433 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 21:01:50,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:01:50,434 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 21:01:50,467 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 Received shutdown request... [2023-12-16 21:02:25,084 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 (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 21:02:25,103 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 21:02:26,171 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 [2023-12-16 21:02:26,292 WARN L435 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)] Forcibly destroying the process [2023-12-16 21:02:26,375 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 137 [2023-12-16 21:02:26,377 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-16 21:02:26,380 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 21:02:26,380 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 92 with TraceHistMax 14,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [1015622662] and IpTcStrategyModuleCvc4 [1653090457]. [2023-12-16 21:02:26,384 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-16 21:02:26,387 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 21:02:26,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 09:02:26 BoogieIcfgContainer [2023-12-16 21:02:26,389 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 21:02:26,390 INFO L158 Benchmark]: Toolchain (without parser) took 72545.34ms. Allocated memory was 419.4MB in the beginning and 1.4GB in the end (delta: 956.3MB). Free memory was 358.2MB in the beginning and 514.1MB in the end (delta: -155.9MB). Peak memory consumption was 798.8MB. Max. memory is 8.0GB. [2023-12-16 21:02:26,390 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 209.7MB. Free memory is still 158.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 21:02:26,390 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1240.59ms. Allocated memory is still 419.4MB. Free memory was 358.2MB in the beginning and 272.4MB in the end (delta: 85.7MB). Peak memory consumption was 117.7MB. Max. memory is 8.0GB. [2023-12-16 21:02:26,391 INFO L158 Benchmark]: Boogie Procedure Inliner took 371.38ms. Allocated memory was 419.4MB in the beginning and 687.9MB in the end (delta: 268.4MB). Free memory was 271.9MB in the beginning and 551.9MB in the end (delta: -280.0MB). Peak memory consumption was 47.7MB. Max. memory is 8.0GB. [2023-12-16 21:02:26,391 INFO L158 Benchmark]: Boogie Preprocessor took 375.99ms. Allocated memory is still 687.9MB. Free memory was 551.9MB in the beginning and 551.3MB in the end (delta: 526.3kB). Peak memory consumption was 80.7MB. Max. memory is 8.0GB. [2023-12-16 21:02:26,392 INFO L158 Benchmark]: RCFGBuilder took 15890.80ms. Allocated memory was 687.9MB in the beginning and 1.4GB in the end (delta: 687.9MB). Free memory was 551.3MB in the beginning and 840.2MB in the end (delta: -288.9MB). Peak memory consumption was 843.6MB. Max. memory is 8.0GB. [2023-12-16 21:02:26,393 INFO L158 Benchmark]: TraceAbstraction took 54659.97ms. Allocated memory is still 1.4GB. Free memory was 839.2MB in the beginning and 514.1MB in the end (delta: 325.1MB). Peak memory consumption was 323.5MB. Max. memory is 8.0GB. [2023-12-16 21:02:26,395 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 209.7MB. Free memory is still 158.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1240.59ms. Allocated memory is still 419.4MB. Free memory was 358.2MB in the beginning and 272.4MB in the end (delta: 85.7MB). Peak memory consumption was 117.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 371.38ms. Allocated memory was 419.4MB in the beginning and 687.9MB in the end (delta: 268.4MB). Free memory was 271.9MB in the beginning and 551.9MB in the end (delta: -280.0MB). Peak memory consumption was 47.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 375.99ms. Allocated memory is still 687.9MB. Free memory was 551.9MB in the beginning and 551.3MB in the end (delta: 526.3kB). Peak memory consumption was 80.7MB. Max. memory is 8.0GB. * RCFGBuilder took 15890.80ms. Allocated memory was 687.9MB in the beginning and 1.4GB in the end (delta: 687.9MB). Free memory was 551.3MB in the beginning and 840.2MB in the end (delta: -288.9MB). Peak memory consumption was 843.6MB. Max. memory is 8.0GB. * TraceAbstraction took 54659.97ms. Allocated memory is still 1.4GB. Free memory was 839.2MB in the beginning and 514.1MB in the end (delta: 325.1MB). Peak memory consumption was 323.5MB. 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 - TimeoutResultAtElement [Line: 22]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 22). Cancelled while NwaCegarLoop was analyzing trace of length 92 with TraceHistMax 14,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [1015622662] and IpTcStrategyModuleCvc4 [1653090457]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 54.6s, OverallIterations: 2, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 6.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 57 SdHoareTripleChecker+Invalid, 6.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 19 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=1, InterpolantAutomatonStates: 4, 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, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 9.7s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 182 SizeOfPredicates, 12 NumberOfNonLiveVariables, 3209 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 84/84 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