/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_w16_d8_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 21:00:32,624 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 21:00:32,690 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 21:00:32,694 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 21:00:32,694 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 21:00:32,714 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 21:00:32,714 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 21:00:32,714 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 21:00:32,715 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 21:00:32,715 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 21:00:32,715 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 21:00:32,715 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 21:00:32,716 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 21:00:32,716 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 21:00:32,716 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 21:00:32,716 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 21:00:32,717 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 21:00:32,717 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 21:00:32,717 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 21:00:32,717 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 21:00:32,718 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 21:00:32,721 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 21:00:32,721 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 21:00:32,722 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 21:00:32,722 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 21:00:32,722 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 21:00:32,722 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 21:00:32,723 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 21:00:32,723 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 21:00:32,723 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 21:00:32,723 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 21:00:32,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 21:00:32,724 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 21:00:32,726 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 21:00:32,727 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 21:00:32,727 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 21:00:32,727 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 21:00:32,727 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 21:00:32,727 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 21:00:32,727 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 21:00:32,728 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 21:00:32,728 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 21:00:32,728 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 21:00:32,728 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 21:00:32,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 21:00:32,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 21:00:32,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 21:00:32,916 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 21:00:32,918 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 21:00:32,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d8_e0.c [2023-12-16 21:00:33,946 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 21:00:34,180 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 21:00:34,181 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d8_e0.c [2023-12-16 21:00:34,195 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb0b57280/2142cd50f9204f6eae1c144b02fb0ea1/FLAG4176d80b6 [2023-12-16 21:00:34,206 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb0b57280/2142cd50f9204f6eae1c144b02fb0ea1 [2023-12-16 21:00:34,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 21:00:34,210 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 21:00:34,212 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 21:00:34,212 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 21:00:34,215 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 21:00:34,216 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:00:34" (1/1) ... [2023-12-16 21:00:34,216 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ff54f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:34, skipping insertion in model container [2023-12-16 21:00:34,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:00:34" (1/1) ... [2023-12-16 21:00:34,261 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 21:00:34,403 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_w16_d8_e0.c[1270,1283] [2023-12-16 21:00:34,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 21:00:34,622 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 21:00:34,634 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_w16_d8_e0.c[1270,1283] [2023-12-16 21:00:34,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 21:00:34,734 INFO L206 MainTranslator]: Completed translation [2023-12-16 21:00:34,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:34 WrapperNode [2023-12-16 21:00:34,735 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 21:00:34,735 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 21:00:34,735 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 21:00:34,735 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 21:00:34,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:34" (1/1) ... [2023-12-16 21:00:34,783 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:34" (1/1) ... [2023-12-16 21:00:34,849 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1209 [2023-12-16 21:00:34,849 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 21:00:34,850 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 21:00:34,850 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 21:00:34,850 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 21:00:34,862 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:34" (1/1) ... [2023-12-16 21:00:34,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:34" (1/1) ... [2023-12-16 21:00:34,868 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:34" (1/1) ... [2023-12-16 21:00:34,893 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 21:00:34,893 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:34" (1/1) ... [2023-12-16 21:00:34,893 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:34" (1/1) ... [2023-12-16 21:00:34,911 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:34" (1/1) ... [2023-12-16 21:00:34,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:34" (1/1) ... [2023-12-16 21:00:34,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:34" (1/1) ... [2023-12-16 21:00:34,921 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:34" (1/1) ... [2023-12-16 21:00:34,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 21:00:34,929 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 21:00:34,929 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 21:00:34,929 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 21:00:34,930 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:34" (1/1) ... [2023-12-16 21:00:34,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 21:00:34,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 21:00:34,952 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 21:00:34,968 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 21:00:34,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 21:00:34,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 21:00:34,975 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 21:00:34,976 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 21:00:34,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 21:00:34,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 21:00:35,242 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 21:00:35,244 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 21:00:35,980 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 21:00:36,042 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 21:00:36,042 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 21:00:36,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:00:36 BoogieIcfgContainer [2023-12-16 21:00:36,042 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 21:00:36,044 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 21:00:36,044 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 21:00:36,046 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 21:00:36,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:00:34" (1/3) ... [2023-12-16 21:00:36,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d871444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:00:36, skipping insertion in model container [2023-12-16 21:00:36,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:34" (2/3) ... [2023-12-16 21:00:36,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d871444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:00:36, skipping insertion in model container [2023-12-16 21:00:36,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:00:36" (3/3) ... [2023-12-16 21:00:36,049 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n2_w16_d8_e0.c [2023-12-16 21:00:36,063 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 21:00:36,063 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 21:00:36,102 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 21:00:36,108 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;@7fbe33cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 21:00:36,108 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 21:00:36,112 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 21:00:36,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-16 21:00:36,119 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:00:36,120 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 21:00:36,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:00:36,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:00:36,126 INFO L85 PathProgramCache]: Analyzing trace with hash 871459935, now seen corresponding path program 1 times [2023-12-16 21:00:36,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:00:36,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285851919] [2023-12-16 21:00:36,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:00:36,139 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 21:00:36,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:00:36,141 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 21:00:36,174 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 21:00:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 21:00:36,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 21:00:36,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:00:36,910 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 21:00:36,910 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 21:00:36,910 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 21:00:36,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285851919] [2023-12-16 21:00:36,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285851919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 21:00:36,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 21:00:36,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 21:00:36,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233222206] [2023-12-16 21:00:36,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 21:00:36,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 21:00:36,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 21:00:36,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 21:00:36,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 21:00:36,938 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 21:00:37,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 21:00:37,131 INFO L93 Difference]: Finished difference Result 66 states and 109 transitions. [2023-12-16 21:00:37,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 21:00:37,134 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 21:00:37,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 21:00:37,138 INFO L225 Difference]: With dead ends: 66 [2023-12-16 21:00:37,138 INFO L226 Difference]: Without dead ends: 41 [2023-12-16 21:00:37,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 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 21:00:37,144 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 3 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 21:00:37,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 57 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 21:00:37,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-12-16 21:00:37,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2023-12-16 21:00:37,178 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 21:00:37,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 53 transitions. [2023-12-16 21:00:37,181 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 53 transitions. Word has length 46 [2023-12-16 21:00:37,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 21:00:37,182 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 53 transitions. [2023-12-16 21:00:37,182 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 21:00:37,182 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 53 transitions. [2023-12-16 21:00:37,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 21:00:37,186 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:00:37,186 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 21:00:37,194 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 21:00:37,391 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 21:00:37,392 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:00:37,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:00:37,392 INFO L85 PathProgramCache]: Analyzing trace with hash 455665793, now seen corresponding path program 1 times [2023-12-16 21:00:37,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:00:37,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475844288] [2023-12-16 21:00:37,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:00:37,395 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 21:00:37,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:00:37,396 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 21:00:37,398 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 21:00:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 21:00:39,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 1492 conjuncts, 45 conjunts are in the unsatisfiable core [2023-12-16 21:00:39,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:00:39,920 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 12 proven. 43 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-16 21:00:39,921 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 21:00:40,023 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 21:00:40,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475844288] [2023-12-16 21:00:40,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475844288] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 21:00:40,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [498678964] [2023-12-16 21:00:40,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:00:40,024 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 21:00:40,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 21:00:40,026 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 21:00:40,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-16 21:00:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 21:00:41,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 1492 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-16 21:00:41,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:00:41,440 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 12 proven. 43 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-16 21:00:41,440 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 21:00:41,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [498678964] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 21:00:41,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 21:00:41,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2023-12-16 21:00:41,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367331912] [2023-12-16 21:00:41,539 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 21:00:41,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 21:00:41,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 21:00:41,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 21:00:41,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-16 21:00:41,542 INFO L87 Difference]: Start difference. First operand 40 states and 53 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-16 21:00:42,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 21:00:42,147 INFO L93 Difference]: Finished difference Result 60 states and 80 transitions. [2023-12-16 21:00:42,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 21:00:42,147 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 91 [2023-12-16 21:00:42,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 21:00:42,149 INFO L225 Difference]: With dead ends: 60 [2023-12-16 21:00:42,149 INFO L226 Difference]: Without dead ends: 58 [2023-12-16 21:00:42,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 178 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-12-16 21:00:42,150 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 21:00:42,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 111 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 21:00:42,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-16 21:00:42,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2023-12-16 21:00:42,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 34 states have internal predecessors, (35), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-16 21:00:42,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 77 transitions. [2023-12-16 21:00:42,160 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 77 transitions. Word has length 91 [2023-12-16 21:00:42,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 21:00:42,161 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 77 transitions. [2023-12-16 21:00:42,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-16 21:00:42,161 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 77 transitions. [2023-12-16 21:00:42,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 21:00:42,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:00:42,162 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2023-12-16 21:00:42,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-16 21:00:42,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 21:00:42,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 21:00:42,571 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:00:42,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:00:42,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1949582433, now seen corresponding path program 2 times [2023-12-16 21:00:42,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:00:42,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099652304] [2023-12-16 21:00:42,574 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 21:00:42,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 21:00:42,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:00:42,575 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 21:00:42,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 21:00:48,053 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 21:00:48,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 21:00:48,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 2439 conjuncts, 215 conjunts are in the unsatisfiable core [2023-12-16 21:00:48,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:01:00,887 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 153 proven. 136 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2023-12-16 21:01:00,887 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 21:01:01,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 21:01:01,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1099652304] [2023-12-16 21:01:01,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1099652304] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 21:01:01,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [546318267] [2023-12-16 21:01:01,617 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 21:01:01,618 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 21:01:01,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 21:01:01,619 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 21:01:01,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-16 21:01:03,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 21:01:03,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 21:01:03,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 2439 conjuncts, 204 conjunts are in the unsatisfiable core [2023-12-16 21:01:03,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 21:01:46,311 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 21:01:46,311 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 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 21:01:46,311 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 21:01:47,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 21:01:47,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-16 21:01:47,512 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 21:01:47,523 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 137 [2023-12-16 21:01:47,525 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 21:01:47,526 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 137 with TraceHistMax 21,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-16 21:01:47,530 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-12-16 21:01:47,532 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 21:01:47,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 09:01:47 BoogieIcfgContainer [2023-12-16 21:01:47,534 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 21:01:47,534 INFO L158 Benchmark]: Toolchain (without parser) took 73324.35ms. Allocated memory was 204.5MB in the beginning and 709.9MB in the end (delta: 505.4MB). Free memory was 163.5MB in the beginning and 275.9MB in the end (delta: -112.4MB). Peak memory consumption was 393.4MB. Max. memory is 8.0GB. [2023-12-16 21:01:47,534 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 204.5MB. Free memory is still 160.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 21:01:47,538 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.96ms. Allocated memory is still 204.5MB. Free memory was 163.5MB in the beginning and 120.2MB in the end (delta: 43.3MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2023-12-16 21:01:47,538 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.94ms. Allocated memory is still 204.5MB. Free memory was 120.2MB in the beginning and 169.5MB in the end (delta: -49.3MB). Peak memory consumption was 18.5MB. Max. memory is 8.0GB. [2023-12-16 21:01:47,538 INFO L158 Benchmark]: Boogie Preprocessor took 78.75ms. Allocated memory is still 204.5MB. Free memory was 169.0MB in the beginning and 158.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 21:01:47,539 INFO L158 Benchmark]: RCFGBuilder took 1113.48ms. Allocated memory was 204.5MB in the beginning and 305.1MB in the end (delta: 100.7MB). Free memory was 158.0MB in the beginning and 193.3MB in the end (delta: -35.3MB). Peak memory consumption was 76.9MB. Max. memory is 8.0GB. [2023-12-16 21:01:47,539 INFO L158 Benchmark]: TraceAbstraction took 71489.50ms. Allocated memory was 305.1MB in the beginning and 709.9MB in the end (delta: 404.8MB). Free memory was 192.2MB in the beginning and 275.9MB in the end (delta: -83.7MB). Peak memory consumption was 321.0MB. Max. memory is 8.0GB. [2023-12-16 21:01:47,540 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 204.5MB. Free memory is still 160.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 522.96ms. Allocated memory is still 204.5MB. Free memory was 163.5MB in the beginning and 120.2MB in the end (delta: 43.3MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 113.94ms. Allocated memory is still 204.5MB. Free memory was 120.2MB in the beginning and 169.5MB in the end (delta: -49.3MB). Peak memory consumption was 18.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 78.75ms. Allocated memory is still 204.5MB. Free memory was 169.0MB in the beginning and 158.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * RCFGBuilder took 1113.48ms. Allocated memory was 204.5MB in the beginning and 305.1MB in the end (delta: 100.7MB). Free memory was 158.0MB in the beginning and 193.3MB in the end (delta: -35.3MB). Peak memory consumption was 76.9MB. Max. memory is 8.0GB. * TraceAbstraction took 71489.50ms. Allocated memory was 305.1MB in the beginning and 709.9MB in the end (delta: 404.8MB). Free memory was 192.2MB in the beginning and 275.9MB in the end (delta: -83.7MB). Peak memory consumption was 321.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was analyzing trace of length 137 with TraceHistMax 21,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 71.4s, OverallIterations: 3, TraceHistogramMax: 21, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 168 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 131 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 295 IncrementalHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 37 mSDtfsCounter, 295 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 240 GetRequests, 221 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=2, InterpolantAutomatonStates: 15, 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 1056 SizeOfPredicates, 103 NumberOfNonLiveVariables, 3529 ConjunctsInSsa, 105 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 758/844 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