/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_n5_w16_d64_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-26 03:24:50,176 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-26 03:24:50,235 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-12-26 03:24:50,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-26 03:24:50,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-26 03:24:50,271 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-26 03:24:50,272 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-26 03:24:50,272 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-26 03:24:50,272 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-26 03:24:50,275 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-26 03:24:50,275 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-26 03:24:50,276 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-26 03:24:50,276 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-26 03:24:50,277 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-26 03:24:50,277 INFO L153 SettingsManager]: * Use SBE=true [2023-12-26 03:24:50,277 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-26 03:24:50,277 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-26 03:24:50,278 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-26 03:24:50,278 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-26 03:24:50,279 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-26 03:24:50,279 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-26 03:24:50,279 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-26 03:24:50,279 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-26 03:24:50,279 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-26 03:24:50,280 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-26 03:24:50,280 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-26 03:24:50,280 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-26 03:24:50,280 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-26 03:24:50,280 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-26 03:24:50,281 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-26 03:24:50,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-26 03:24:50,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-26 03:24:50,282 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-26 03:24:50,282 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-26 03:24:50,282 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-26 03:24:50,282 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-26 03:24:50,282 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-26 03:24:50,282 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-26 03:24:50,282 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-26 03:24:50,282 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-26 03:24:50,282 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-26 03:24:50,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-26 03:24:50,283 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-26 03:24:50,283 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-26 03:24:50,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-26 03:24:50,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-26 03:24:50,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-26 03:24:50,492 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-26 03:24:50,495 INFO L274 PluginConnector]: CDTParser initialized [2023-12-26 03:24:50,496 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n5_w16_d64_e0.c [2023-12-26 03:24:51,631 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-26 03:24:52,001 INFO L384 CDTParser]: Found 1 translation units. [2023-12-26 03:24:52,002 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n5_w16_d64_e0.c [2023-12-26 03:24:52,032 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd930463a/fd6be3165f6d4d91ac32ff337c515904/FLAG61bee5e55 [2023-12-26 03:24:52,045 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd930463a/fd6be3165f6d4d91ac32ff337c515904 [2023-12-26 03:24:52,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-26 03:24:52,048 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-26 03:24:52,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-26 03:24:52,050 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-26 03:24:52,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-26 03:24:52,053 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 03:24:52" (1/1) ... [2023-12-26 03:24:52,054 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22641466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:24:52, skipping insertion in model container [2023-12-26 03:24:52,054 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 03:24:52" (1/1) ... [2023-12-26 03:24:52,224 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-26 03:24:52,455 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_n5_w16_d64_e0.c[1325,1338] [2023-12-26 03:24:53,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-26 03:24:53,092 INFO L202 MainTranslator]: Completed pre-run [2023-12-26 03:24:53,101 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_n5_w16_d64_e0.c[1325,1338] [2023-12-26 03:24:53,574 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-26 03:24:53,583 INFO L206 MainTranslator]: Completed translation [2023-12-26 03:24:53,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:24:53 WrapperNode [2023-12-26 03:24:53,584 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-26 03:24:53,600 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-26 03:24:53,600 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-26 03:24:53,600 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-26 03:24:53,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:24:53" (1/1) ... [2023-12-26 03:24:53,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:24:53" (1/1) ... [2023-12-26 03:24:54,027 INFO L138 Inliner]: procedures = 18, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 11102 [2023-12-26 03:24:54,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-26 03:24:54,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-26 03:24:54,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-26 03:24:54,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-26 03:24:54,035 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:24:53" (1/1) ... [2023-12-26 03:24:54,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:24:53" (1/1) ... [2023-12-26 03:24:54,197 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:24:53" (1/1) ... [2023-12-26 03:24:54,293 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]. [2023-12-26 03:24:54,293 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:24:53" (1/1) ... [2023-12-26 03:24:54,293 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:24:53" (1/1) ... [2023-12-26 03:24:54,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:24:53" (1/1) ... [2023-12-26 03:24:54,458 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:24:53" (1/1) ... [2023-12-26 03:24:54,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:24:53" (1/1) ... [2023-12-26 03:24:54,503 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:24:53" (1/1) ... [2023-12-26 03:24:54,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-26 03:24:54,543 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-26 03:24:54,543 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-26 03:24:54,543 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-26 03:24:54,544 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:24:53" (1/1) ... [2023-12-26 03:24:54,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-26 03:24:54,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-26 03:24:54,584 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) [2023-12-26 03:24:54,586 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 [2023-12-26 03:24:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-26 03:24:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-26 03:24:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-26 03:24:54,628 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-26 03:24:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-26 03:24:54,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-26 03:24:55,552 INFO L241 CfgBuilder]: Building ICFG [2023-12-26 03:24:55,553 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-26 03:25:14,575 INFO L282 CfgBuilder]: Performing block encoding [2023-12-26 03:25:14,938 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-26 03:25:14,938 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-26 03:25:14,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 03:25:14 BoogieIcfgContainer [2023-12-26 03:25:14,939 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-26 03:25:14,940 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-26 03:25:14,940 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-26 03:25:14,942 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-26 03:25:14,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 03:24:52" (1/3) ... [2023-12-26 03:25:14,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25708ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 03:25:14, skipping insertion in model container [2023-12-26 03:25:14,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:24:53" (2/3) ... [2023-12-26 03:25:14,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25708ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 03:25:14, skipping insertion in model container [2023-12-26 03:25:14,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 03:25:14" (3/3) ... [2023-12-26 03:25:14,945 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n5_w16_d64_e0.c [2023-12-26 03:25:14,956 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-26 03:25:14,957 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-26 03:25:14,994 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-26 03:25:14,998 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;@3b8b4738, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-26 03:25:14,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-26 03:25:15,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-26 03:25:15,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-26 03:25:15,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 03:25:15,010 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-26 03:25:15,011 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 03:25:15,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 03:25:15,015 INFO L85 PathProgramCache]: Analyzing trace with hash -870637129, now seen corresponding path program 1 times [2023-12-26 03:25:15,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 03:25:15,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753453148] [2023-12-26 03:25:15,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 03:25:15,030 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 [2023-12-26 03:25:15,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 03:25:15,065 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) [2023-12-26 03:25:15,207 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 [2023-12-26 03:25:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 03:25:17,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 3751 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-26 03:25:17,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 03:25:17,765 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-12-26 03:25:17,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-26 03:25:17,765 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 03:25:17,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753453148] [2023-12-26 03:25:17,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753453148] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-26 03:25:17,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-26 03:25:17,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-26 03:25:17,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996291490] [2023-12-26 03:25:17,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-26 03:25:17,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-26 03:25:17,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 03:25:17,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-26 03:25:17,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-26 03:25:17,789 INFO L87 Difference]: Start difference. First operand has 44 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-26 03:25:17,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 03:25:17,877 INFO L93 Difference]: Finished difference Result 85 states and 138 transitions. [2023-12-26 03:25:17,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-26 03:25:17,891 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 100 [2023-12-26 03:25:17,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 03:25:17,896 INFO L225 Difference]: With dead ends: 85 [2023-12-26 03:25:17,896 INFO L226 Difference]: Without dead ends: 42 [2023-12-26 03:25:17,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-26 03:25:17,902 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-26 03:25:17,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-26 03:25:17,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-12-26 03:25:17,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-12-26 03:25:17,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-26 03:25:17,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 57 transitions. [2023-12-26 03:25:17,934 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 57 transitions. Word has length 100 [2023-12-26 03:25:17,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 03:25:17,934 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 57 transitions. [2023-12-26 03:25:17,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-26 03:25:17,934 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 57 transitions. [2023-12-26 03:25:17,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-26 03:25:17,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 03:25:17,938 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-26 03:25:17,966 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 [2023-12-26 03:25:18,150 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 [2023-12-26 03:25:18,151 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 03:25:18,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 03:25:18,151 INFO L85 PathProgramCache]: Analyzing trace with hash -664786537, now seen corresponding path program 1 times [2023-12-26 03:25:18,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 03:25:18,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072633556] [2023-12-26 03:25:18,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 03:25:18,156 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 [2023-12-26 03:25:18,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 03:25:18,167 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) [2023-12-26 03:25:18,168 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 [2023-12-26 03:25:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 03:25:31,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 3751 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-26 03:25:31,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 03:25:31,761 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-26 03:25:31,761 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-26 03:25:31,761 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 03:25:31,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072633556] [2023-12-26 03:25:31,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2072633556] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-26 03:25:31,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-26 03:25:31,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-26 03:25:31,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101258924] [2023-12-26 03:25:31,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-26 03:25:31,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-26 03:25:31,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 03:25:31,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-26 03:25:31,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-26 03:25:31,768 INFO L87 Difference]: Start difference. First operand 42 states and 57 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-26 03:25:34,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-26 03:25:34,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 03:25:34,982 INFO L93 Difference]: Finished difference Result 79 states and 110 transitions. [2023-12-26 03:25:34,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-26 03:25:34,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 100 [2023-12-26 03:25:34,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 03:25:34,984 INFO L225 Difference]: With dead ends: 79 [2023-12-26 03:25:34,984 INFO L226 Difference]: Without dead ends: 77 [2023-12-26 03:25:34,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-26 03:25:34,986 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 3 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-26 03:25:34,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 111 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-26 03:25:34,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-12-26 03:25:34,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2023-12-26 03:25:34,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 42 states have (on average 1.0238095238095237) internal successors, (43), 42 states have internal predecessors, (43), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-26 03:25:34,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 107 transitions. [2023-12-26 03:25:34,996 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 107 transitions. Word has length 100 [2023-12-26 03:25:34,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 03:25:34,997 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 107 transitions. [2023-12-26 03:25:34,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-26 03:25:34,997 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 107 transitions. [2023-12-26 03:25:34,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-12-26 03:25:34,999 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 03:25:34,999 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-26 03:25:35,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-26 03:25:35,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-26 03:25:35,200 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 03:25:35,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 03:25:35,200 INFO L85 PathProgramCache]: Analyzing trace with hash 11346597, now seen corresponding path program 1 times [2023-12-26 03:25:35,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 03:25:35,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395787883] [2023-12-26 03:25:35,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 03:25:35,227 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 [2023-12-26 03:25:35,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 03:25:35,228 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-26 03:25:35,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-26 03:28:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 03:28:31,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 12922 conjuncts, 45 conjunts are in the unsatisfiable core [2023-12-26 03:28:31,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 03:28:33,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2018 backedges. 30 proven. 97 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2023-12-26 03:28:33,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 03:28:33,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 03:28:33,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395787883] [2023-12-26 03:28:33,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1395787883] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-26 03:28:33,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [454236428] [2023-12-26 03:28:33,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 03:28:33,419 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-26 03:28:33,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-26 03:28:33,464 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-26 03:28:33,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-26 03:28:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 03:28:43,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 12922 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-26 03:28:43,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 03:28:44,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2018 backedges. 30 proven. 97 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2023-12-26 03:28:44,473 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 03:28:44,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [454236428] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-26 03:28:44,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-26 03:28:44,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2023-12-26 03:28:44,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975216415] [2023-12-26 03:28:44,611 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-26 03:28:44,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-26 03:28:44,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 03:28:44,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-26 03:28:44,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-26 03:28:44,613 INFO L87 Difference]: Start difference. First operand 76 states and 107 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2023-12-26 03:28:47,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-26 03:28:50,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-26 03:28:52,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 03:28:52,293 INFO L93 Difference]: Finished difference Result 114 states and 161 transitions. [2023-12-26 03:28:52,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-26 03:28:52,294 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) Word has length 199 [2023-12-26 03:28:52,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 03:28:52,302 INFO L225 Difference]: With dead ends: 114 [2023-12-26 03:28:52,302 INFO L226 Difference]: Without dead ends: 112 [2023-12-26 03:28:52,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 394 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-12-26 03:28:52,305 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 23 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-12-26 03:28:52,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 219 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-12-26 03:28:52,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-12-26 03:28:52,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2023-12-26 03:28:52,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 61 states have (on average 1.0163934426229508) internal successors, (62), 61 states have internal predecessors, (62), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-26 03:28:52,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 158 transitions. [2023-12-26 03:28:52,334 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 158 transitions. Word has length 199 [2023-12-26 03:28:52,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 03:28:52,335 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 158 transitions. [2023-12-26 03:28:52,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2023-12-26 03:28:52,335 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 158 transitions. [2023-12-26 03:28:52,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-26 03:28:52,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 03:28:52,338 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-26 03:28:52,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-26 03:28:52,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-26 03:28:52,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-26 03:28:52,761 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 03:28:52,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 03:28:52,761 INFO L85 PathProgramCache]: Analyzing trace with hash -206565673, now seen corresponding path program 2 times [2023-12-26 03:28:52,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 03:28:52,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [656815505] [2023-12-26 03:28:52,775 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-26 03:28:52,775 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 [2023-12-26 03:28:52,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 03:28:52,776 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-26 03:28:52,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-26 03:37:56,771 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-26 03:37:56,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-26 03:37:57,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 22093 conjuncts, 184 conjunts are in the unsatisfiable core [2023-12-26 03:37:57,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 03:38:04,416 INFO L134 CoverageAnalysis]: Checked inductivity of 4615 backedges. 405 proven. 343 refuted. 0 times theorem prover too weak. 3867 trivial. 0 not checked. [2023-12-26 03:38:04,417 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 03:38:05,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 03:38:05,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [656815505] [2023-12-26 03:38:05,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [656815505] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-26 03:38:05,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1009499496] [2023-12-26 03:38:05,486 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-26 03:38:05,486 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-26 03:38:05,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-26 03:38:05,488 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-26 03:38:05,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-26 03:38:23,402 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-26 03:38:23,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-26 03:38:24,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 22093 conjuncts, 169 conjunts are in the unsatisfiable core [2023-12-26 03:38:24,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 03:38:31,323 INFO L134 CoverageAnalysis]: Checked inductivity of 4615 backedges. 339 proven. 292 refuted. 0 times theorem prover too weak. 3984 trivial. 0 not checked. [2023-12-26 03:38:31,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 03:38:32,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1009499496] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-26 03:38:32,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-26 03:38:32,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17] total 27 [2023-12-26 03:38:32,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200580847] [2023-12-26 03:38:32,541 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-26 03:38:32,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-26 03:38:32,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 03:38:32,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-26 03:38:32,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=691, Unknown=0, NotChecked=0, Total=812 [2023-12-26 03:38:32,544 INFO L87 Difference]: Start difference. First operand 111 states and 158 transitions. Second operand has 27 states, 20 states have (on average 4.8) internal successors, (96), 25 states have internal predecessors, (96), 17 states have call successors, (75), 1 states have call predecessors, (75), 2 states have return successors, (75), 12 states have call predecessors, (75), 17 states have call successors, (75) [2023-12-26 03:38:36,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:38:38,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-26 03:38:42,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:38:50,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:38:55,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:38:59,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:39:03,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:39:07,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:39:11,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:39:12,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:39:16,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:39:20,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 03:39:25,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] Received shutdown request... [2023-12-26 03:39:25,735 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 [2023-12-26 03:39:25,735 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 (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-26 03:39:25,735 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-26 03:39:25,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-26 03:39:25,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 573 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=284, Invalid=1276, Unknown=0, NotChecked=0, Total=1560 [2023-12-26 03:39:25,752 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 89 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 69 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.2s IncrementalHoareTripleChecker+Time [2023-12-26 03:39:25,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 306 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 855 Invalid, 9 Unknown, 0 Unchecked, 51.2s Time] [2023-12-26 03:39:25,753 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-26 03:39:25,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-26 03:39:26,115 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 (6)] Ended with exit code 0 [2023-12-26 03:39:26,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-26 03:39:26,155 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (111states) and FLOYD_HOARE automaton (currently 19 states, 27 states before enhancement),while ReachableStatesComputation was computing reachable states (78 states constructed, input type IntersectNwa). [2023-12-26 03:39:26,158 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-12-26 03:39:26,160 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-26 03:39:26,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 03:39:26 BoogieIcfgContainer [2023-12-26 03:39:26,163 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-26 03:39:26,163 INFO L158 Benchmark]: Toolchain (without parser) took 874115.70ms. Allocated memory was 207.6MB in the beginning and 1.9GB in the end (delta: 1.6GB). Free memory was 136.1MB in the beginning and 723.9MB in the end (delta: -587.8MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-12-26 03:39:26,164 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 207.6MB. Free memory is still 154.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-26 03:39:26,164 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1534.43ms. Allocated memory was 207.6MB in the beginning and 299.9MB in the end (delta: 92.3MB). Free memory was 136.1MB in the beginning and 184.9MB in the end (delta: -48.8MB). Peak memory consumption was 152.8MB. Max. memory is 8.0GB. [2023-12-26 03:39:26,164 INFO L158 Benchmark]: Boogie Procedure Inliner took 426.80ms. Allocated memory was 299.9MB in the beginning and 595.6MB in the end (delta: 295.7MB). Free memory was 184.9MB in the beginning and 445.4MB in the end (delta: -260.5MB). Peak memory consumption was 83.9MB. Max. memory is 8.0GB. [2023-12-26 03:39:26,165 INFO L158 Benchmark]: Boogie Preprocessor took 514.40ms. Allocated memory is still 595.6MB. Free memory was 445.4MB in the beginning and 431.8MB in the end (delta: 13.6MB). Peak memory consumption was 71.3MB. Max. memory is 8.0GB. [2023-12-26 03:39:26,165 INFO L158 Benchmark]: RCFGBuilder took 20396.01ms. Allocated memory was 595.6MB in the beginning and 1.6GB in the end (delta: 998.2MB). Free memory was 431.8MB in the beginning and 1.1GB in the end (delta: -654.3MB). Peak memory consumption was 975.7MB. Max. memory is 8.0GB. [2023-12-26 03:39:26,166 INFO L158 Benchmark]: TraceAbstraction took 851222.80ms. Allocated memory was 1.6GB in the beginning and 1.9GB in the end (delta: 256.9MB). Free memory was 1.1GB in the beginning and 723.9MB in the end (delta: 361.2MB). Peak memory consumption was 618.6MB. Max. memory is 8.0GB. [2023-12-26 03:39:26,168 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 207.6MB. Free memory is still 154.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1534.43ms. Allocated memory was 207.6MB in the beginning and 299.9MB in the end (delta: 92.3MB). Free memory was 136.1MB in the beginning and 184.9MB in the end (delta: -48.8MB). Peak memory consumption was 152.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 426.80ms. Allocated memory was 299.9MB in the beginning and 595.6MB in the end (delta: 295.7MB). Free memory was 184.9MB in the beginning and 445.4MB in the end (delta: -260.5MB). Peak memory consumption was 83.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 514.40ms. Allocated memory is still 595.6MB. Free memory was 445.4MB in the beginning and 431.8MB in the end (delta: 13.6MB). Peak memory consumption was 71.3MB. Max. memory is 8.0GB. * RCFGBuilder took 20396.01ms. Allocated memory was 595.6MB in the beginning and 1.6GB in the end (delta: 998.2MB). Free memory was 431.8MB in the beginning and 1.1GB in the end (delta: -654.3MB). Peak memory consumption was 975.7MB. Max. memory is 8.0GB. * TraceAbstraction took 851222.80ms. Allocated memory was 1.6GB in the beginning and 1.9GB in the end (delta: 256.9MB). Free memory was 1.1GB in the beginning and 723.9MB in the end (delta: 361.2MB). Peak memory consumption was 618.6MB. 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 constructing difference of abstraction (111states) and FLOYD_HOARE automaton (currently 19 states, 27 states before enhancement),while ReachableStatesComputation was computing reachable states (78 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 851.2s, OverallIterations: 4, TraceHistogramMax: 48, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 64.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 115 SdHoareTripleChecker+Valid, 61.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 115 mSDsluCounter, 692 SdHoareTripleChecker+Invalid, 60.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 529 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1454 IncrementalHoareTripleChecker+Invalid, 1545 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 163 mSDtfsCounter, 1454 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1222 GetRequests, 1163 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=3, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.4s SsaConstructionTime, 747.2s SatisfiabilityAnalysisTime, 21.8s InterpolantComputationTime, 1194 NumberOfCodeBlocks, 1194 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1188 ConstructedInterpolants, 100 QuantifiedInterpolants, 16212 SizeOfPredicates, 467 NumberOfNonLiveVariables, 77532 ConjunctsInSsa, 459 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 13397/14226 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