/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.telephony.1.prop1-func-interl.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-26 16:28:05,831 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-26 16:28:05,922 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 16:28:05,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-26 16:28:05,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-26 16:28:05,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-26 16:28:05,956 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-26 16:28:05,956 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-26 16:28:05,957 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-26 16:28:05,960 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-26 16:28:05,960 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-26 16:28:05,961 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-26 16:28:05,961 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-26 16:28:05,963 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-26 16:28:05,963 INFO L153 SettingsManager]: * Use SBE=true [2023-12-26 16:28:05,963 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-26 16:28:05,963 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-26 16:28:05,963 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-26 16:28:05,964 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-26 16:28:05,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-26 16:28:05,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-26 16:28:05,965 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-26 16:28:05,965 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-26 16:28:05,965 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-26 16:28:05,965 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-26 16:28:05,966 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-26 16:28:05,966 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-26 16:28:05,966 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-26 16:28:05,967 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-26 16:28:05,967 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-26 16:28:05,968 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-26 16:28:05,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-26 16:28:05,968 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-26 16:28:05,968 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-26 16:28:05,969 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-26 16:28:05,969 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-26 16:28:05,969 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-26 16:28:05,969 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-26 16:28:05,969 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-26 16:28:05,970 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-26 16:28:05,970 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-26 16:28:05,970 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-26 16:28:05,970 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-26 16:28:05,970 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-26 16:28:06,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-26 16:28:06,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-26 16:28:06,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-26 16:28:06,230 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-26 16:28:06,230 INFO L274 PluginConnector]: CDTParser initialized [2023-12-26 16:28:06,231 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.telephony.1.prop1-func-interl.c [2023-12-26 16:28:07,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-26 16:28:07,746 INFO L384 CDTParser]: Found 1 translation units. [2023-12-26 16:28:07,747 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.telephony.1.prop1-func-interl.c [2023-12-26 16:28:07,766 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51e6daef4/86cf7867f48e45c6a8837be00c83bd19/FLAG5d168feeb [2023-12-26 16:28:07,781 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51e6daef4/86cf7867f48e45c6a8837be00c83bd19 [2023-12-26 16:28:07,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-26 16:28:07,785 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-26 16:28:07,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-26 16:28:07,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-26 16:28:07,791 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-26 16:28:07,792 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 04:28:07" (1/1) ... [2023-12-26 16:28:07,793 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54cc558a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:28:07, skipping insertion in model container [2023-12-26 16:28:07,793 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 04:28:07" (1/1) ... [2023-12-26 16:28:07,870 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-26 16:28:08,023 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.telephony.1.prop1-func-interl.c[1176,1189] [2023-12-26 16:28:08,462 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-26 16:28:08,481 INFO L202 MainTranslator]: Completed pre-run [2023-12-26 16:28:08,501 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.telephony.1.prop1-func-interl.c[1176,1189] [2023-12-26 16:28:08,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-26 16:28:08,683 INFO L206 MainTranslator]: Completed translation [2023-12-26 16:28:08,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:28:08 WrapperNode [2023-12-26 16:28:08,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-26 16:28:08,686 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-26 16:28:08,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-26 16:28:08,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-26 16:28:08,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:28:08" (1/1) ... [2023-12-26 16:28:08,746 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:28:08" (1/1) ... [2023-12-26 16:28:08,871 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3424 [2023-12-26 16:28:08,871 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-26 16:28:08,872 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-26 16:28:08,872 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-26 16:28:08,872 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-26 16:28:08,882 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:28:08" (1/1) ... [2023-12-26 16:28:08,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:28:08" (1/1) ... [2023-12-26 16:28:08,915 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:28:08" (1/1) ... [2023-12-26 16:28:08,974 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 16:28:08,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:28:08" (1/1) ... [2023-12-26 16:28:08,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:28:08" (1/1) ... [2023-12-26 16:28:09,036 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:28:08" (1/1) ... [2023-12-26 16:28:09,051 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:28:08" (1/1) ... [2023-12-26 16:28:09,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:28:08" (1/1) ... [2023-12-26 16:28:09,079 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:28:08" (1/1) ... [2023-12-26 16:28:09,161 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-26 16:28:09,162 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-26 16:28:09,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-26 16:28:09,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-26 16:28:09,164 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:28:08" (1/1) ... [2023-12-26 16:28:09,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-26 16:28:09,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-26 16:28:09,197 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 16:28:09,216 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 16:28:09,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-26 16:28:09,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-26 16:28:09,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-26 16:28:09,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-26 16:28:09,762 INFO L241 CfgBuilder]: Building ICFG [2023-12-26 16:28:09,764 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-26 16:28:16,108 INFO L282 CfgBuilder]: Performing block encoding [2023-12-26 16:28:16,215 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-26 16:28:16,216 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-26 16:28:16,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 04:28:16 BoogieIcfgContainer [2023-12-26 16:28:16,216 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-26 16:28:16,218 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-26 16:28:16,219 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-26 16:28:16,221 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-26 16:28:16,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 04:28:07" (1/3) ... [2023-12-26 16:28:16,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f94c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 04:28:16, skipping insertion in model container [2023-12-26 16:28:16,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:28:08" (2/3) ... [2023-12-26 16:28:16,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f94c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 04:28:16, skipping insertion in model container [2023-12-26 16:28:16,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 04:28:16" (3/3) ... [2023-12-26 16:28:16,223 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.telephony.1.prop1-func-interl.c [2023-12-26 16:28:16,238 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-26 16:28:16,238 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-26 16:28:16,279 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-26 16:28:16,287 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;@73c52825, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-26 16:28:16,287 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-26 16:28:16,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 16:28:16,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-26 16:28:16,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 16:28:16,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-26 16:28:16,299 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 16:28:16,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 16:28:16,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-12-26 16:28:16,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 16:28:16,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423558137] [2023-12-26 16:28:16,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 16:28:16,318 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 16:28:16,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 16:28:16,324 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 16:28:16,326 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 16:28:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 16:28:16,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-26 16:28:16,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 16:28:17,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-26 16:28:17,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-26 16:28:17,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 16:28:17,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1423558137] [2023-12-26 16:28:17,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1423558137] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-26 16:28:17,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-26 16:28:17,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-26 16:28:17,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925535956] [2023-12-26 16:28:17,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-26 16:28:17,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-26 16:28:17,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 16:28:17,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-26 16:28:17,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-26 16:28:17,108 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 16:28:18,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 16:28:18,205 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-12-26 16:28:18,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-26 16:28:18,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-12-26 16:28:18,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 16:28:18,214 INFO L225 Difference]: With dead ends: 16 [2023-12-26 16:28:18,214 INFO L226 Difference]: Without dead ends: 9 [2023-12-26 16:28:18,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 16:28:18,221 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-26 16:28:18,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-26 16:28:18,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-26 16:28:18,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-12-26 16:28:18,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 16:28:18,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-26 16:28:18,243 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-12-26 16:28:18,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 16:28:18,244 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-12-26 16:28:18,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 16:28:18,244 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-26 16:28:18,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-26 16:28:18,244 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 16:28:18,244 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-12-26 16:28:18,252 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 16:28:18,451 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 16:28:18,452 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 16:28:18,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 16:28:18,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-12-26 16:28:18,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 16:28:18,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885360168] [2023-12-26 16:28:18,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 16:28:18,458 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 16:28:18,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 16:28:18,460 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 16:28:18,493 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 16:28:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 16:28:22,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 2875 conjuncts, 140 conjunts are in the unsatisfiable core [2023-12-26 16:28:22,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 16:28:24,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-26 16:28:24,194 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 16:28:25,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-26 16:28:25,886 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 16:28:25,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885360168] [2023-12-26 16:28:25,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885360168] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-26 16:28:25,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-26 16:28:25,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-26 16:28:25,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987108490] [2023-12-26 16:28:25,887 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-26 16:28:25,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-26 16:28:25,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 16:28:25,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-26 16:28:25,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-26 16:28:25,889 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 16:28:29,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 16:28:29,880 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-12-26 16:28:29,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-26 16:28:29,881 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-26 16:28:29,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 16:28:29,881 INFO L225 Difference]: With dead ends: 14 [2023-12-26 16:28:29,881 INFO L226 Difference]: Without dead ends: 12 [2023-12-26 16:28:29,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-26 16:28:29,883 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-26 16:28:29,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 9 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-26 16:28:29,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-12-26 16:28:29,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-12-26 16:28:29,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 16:28:29,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-12-26 16:28:29,887 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-12-26 16:28:29,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 16:28:29,888 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-12-26 16:28:29,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 16:28:29,888 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-12-26 16:28:29,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-26 16:28:29,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 16:28:29,889 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-12-26 16:28:29,922 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 16:28:30,096 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 16:28:30,097 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 16:28:30,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 16:28:30,097 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-12-26 16:28:30,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 16:28:30,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132359964] [2023-12-26 16:28:30,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-26 16:28:30,107 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 16:28:30,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 16:28:30,108 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 16:28:30,128 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 16:28:39,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-26 16:28:39,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-26 16:28:40,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 5588 conjuncts, 315 conjunts are in the unsatisfiable core [2023-12-26 16:28:40,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 16:28:50,296 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-26 16:28:50,296 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 16:29:18,145 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-26 16:29:18,146 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 16:29:18,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132359964] [2023-12-26 16:29:18,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132359964] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-26 16:29:18,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-26 16:29:18,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-12-26 16:29:18,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221960064] [2023-12-26 16:29:18,147 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-26 16:29:18,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-26 16:29:18,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 16:29:18,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-26 16:29:18,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=137, Unknown=4, NotChecked=0, Total=182 [2023-12-26 16:29:18,149 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 16:29:26,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:29:30,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:29:41,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:29:48,588 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 16:29:48,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 16:29:48,763 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-12-26 16:29:48,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-26 16:29:48,764 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-12-26 16:29:48,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 16:29:48,764 INFO L225 Difference]: With dead ends: 17 [2023-12-26 16:29:48,765 INFO L226 Difference]: Without dead ends: 15 [2023-12-26 16:29:48,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 51.2s TimeCoverageRelationStatistics Valid=86, Invalid=214, Unknown=6, NotChecked=0, Total=306 [2023-12-26 16:29:48,766 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 17 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-12-26 16:29:48,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 12 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 29 Invalid, 1 Unknown, 0 Unchecked, 13.2s Time] [2023-12-26 16:29:48,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-26 16:29:48,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-12-26 16:29:48,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 16:29:48,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-12-26 16:29:48,774 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 10 [2023-12-26 16:29:48,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 16:29:48,774 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-12-26 16:29:48,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 16:29:48,774 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-12-26 16:29:48,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-26 16:29:48,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 16:29:48,775 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2023-12-26 16:29:48,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-26 16:29:48,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-26 16:29:48,985 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 16:29:48,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 16:29:48,985 INFO L85 PathProgramCache]: Analyzing trace with hash -57678563, now seen corresponding path program 3 times [2023-12-26 16:29:48,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 16:29:48,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [36813404] [2023-12-26 16:29:48,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-26 16:29:48,991 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 16:29:48,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 16:29:48,993 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) [2023-12-26 16:29:48,994 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 [2023-12-26 16:30:25,530 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-12-26 16:30:25,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-26 16:30:25,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 8301 conjuncts, 555 conjunts are in the unsatisfiable core [2023-12-26 16:30:25,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 16:31:37,497 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 3 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-26 16:31:37,498 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 16:33:10,136 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-26 16:33:10,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 16:33:10,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [36813404] [2023-12-26 16:33:10,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [36813404] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-26 16:33:10,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-26 16:33:10,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-26 16:33:10,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193136784] [2023-12-26 16:33:10,137 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-26 16:33:10,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-26 16:33:10,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 16:33:10,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-26 16:33:10,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=177, Unknown=17, NotChecked=0, Total=240 [2023-12-26 16:33:10,139 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 16 states, 16 states have (on average 1.5625) internal successors, (25), 15 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 16:33:24,192 WARN L293 SmtUtils]: Spent 8.98s on a formula simplification. DAG size of input: 1171 DAG size of output: 1171 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-26 16:33:41,129 WARN L293 SmtUtils]: Spent 9.72s on a formula simplification. DAG size of input: 1178 DAG size of output: 1173 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-26 16:33:44,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:33:48,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:33:53,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:33:54,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-26 16:34:37,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:34:38,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-26 16:35:01,433 WARN L293 SmtUtils]: Spent 8.50s on a formula simplification. DAG size of input: 1965 DAG size of output: 1627 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-26 16:35:02,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:35:25,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:35:30,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:35:31,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-26 16:36:18,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:36:48,935 WARN L293 SmtUtils]: Spent 6.54s on a formula simplification. DAG size of input: 1726 DAG size of output: 1388 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-26 16:36:50,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-26 16:37:15,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-26 16:37:18,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:37:41,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.65s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:37:46,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:37:49,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:37:50,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 16:37:50,465 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2023-12-26 16:37:50,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-26 16:37:50,466 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.5625) internal successors, (25), 15 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-12-26 16:37:50,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 16:37:50,466 INFO L225 Difference]: With dead ends: 20 [2023-12-26 16:37:50,466 INFO L226 Difference]: Without dead ends: 18 [2023-12-26 16:37:50,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 371.6s TimeCoverageRelationStatistics Valid=133, Invalid=343, Unknown=30, NotChecked=0, Total=506 [2023-12-26 16:37:50,468 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 27 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 9 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.3s IncrementalHoareTripleChecker+Time [2023-12-26 16:37:50,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 18 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 40 Invalid, 6 Unknown, 0 Unchecked, 59.3s Time] [2023-12-26 16:37:50,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-12-26 16:37:50,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2023-12-26 16:37:50,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 16:37:50,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-12-26 16:37:50,488 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 13 [2023-12-26 16:37:50,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 16:37:50,488 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-12-26 16:37:50,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.5625) internal successors, (25), 15 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 16:37:50,489 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-12-26 16:37:50,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-26 16:37:50,489 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 16:37:50,489 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1] [2023-12-26 16:37:50,587 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 [2023-12-26 16:37:50,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-26 16:37:50,690 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 16:37:50,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 16:37:50,691 INFO L85 PathProgramCache]: Analyzing trace with hash -310375345, now seen corresponding path program 4 times [2023-12-26 16:37:50,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 16:37:50,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158956996] [2023-12-26 16:37:50,699 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-26 16:37:50,699 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 16:37:50,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 16:37:50,700 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 16:37:50,704 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 16:38:16,914 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-26 16:38:16,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-26 16:38:17,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 11014 conjuncts, 2928 conjunts are in the unsatisfiable core [2023-12-26 16:38:17,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-26 16:42:26,967 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-26 16:42:26,975 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 16:42:26,976 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 16:42:27,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-26 16:42:27,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-26 16:42:27,169 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 17 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-60-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. [2023-12-26 16:42:27,173 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1] [2023-12-26 16:42:27,176 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-26 16:42:27,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 04:42:27 BoogieIcfgContainer [2023-12-26 16:42:27,178 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-26 16:42:27,178 INFO L158 Benchmark]: Toolchain (without parser) took 859393.92ms. Allocated memory was 201.3MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 153.1MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-12-26 16:42:27,179 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 201.3MB. Free memory is still 158.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-26 16:42:27,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 897.44ms. Allocated memory is still 201.3MB. Free memory was 152.9MB in the beginning and 117.8MB in the end (delta: 35.1MB). Peak memory consumption was 59.3MB. Max. memory is 8.0GB. [2023-12-26 16:42:27,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 185.74ms. Allocated memory is still 201.3MB. Free memory was 117.8MB in the beginning and 92.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-26 16:42:27,180 INFO L158 Benchmark]: Boogie Preprocessor took 289.68ms. Allocated memory was 201.3MB in the beginning and 265.3MB in the end (delta: 64.0MB). Free memory was 92.6MB in the beginning and 216.6MB in the end (delta: -124.0MB). Peak memory consumption was 47.2MB. Max. memory is 8.0GB. [2023-12-26 16:42:27,180 INFO L158 Benchmark]: RCFGBuilder took 7053.74ms. Allocated memory was 265.3MB in the beginning and 450.9MB in the end (delta: 185.6MB). Free memory was 216.6MB in the beginning and 168.6MB in the end (delta: 48.0MB). Peak memory consumption was 237.0MB. Max. memory is 8.0GB. [2023-12-26 16:42:27,180 INFO L158 Benchmark]: TraceAbstraction took 850959.67ms. Allocated memory was 450.9MB in the beginning and 1.7GB in the end (delta: 1.2GB). Free memory was 167.6MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 855.9MB. Max. memory is 8.0GB. [2023-12-26 16:42:27,182 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 201.3MB. Free memory is still 158.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 897.44ms. Allocated memory is still 201.3MB. Free memory was 152.9MB in the beginning and 117.8MB in the end (delta: 35.1MB). Peak memory consumption was 59.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 185.74ms. Allocated memory is still 201.3MB. Free memory was 117.8MB in the beginning and 92.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 289.68ms. Allocated memory was 201.3MB in the beginning and 265.3MB in the end (delta: 64.0MB). Free memory was 92.6MB in the beginning and 216.6MB in the end (delta: -124.0MB). Peak memory consumption was 47.2MB. Max. memory is 8.0GB. * RCFGBuilder took 7053.74ms. Allocated memory was 265.3MB in the beginning and 450.9MB in the end (delta: 185.6MB). Free memory was 216.6MB in the beginning and 168.6MB in the end (delta: 48.0MB). Peak memory consumption was 237.0MB. Max. memory is 8.0GB. * TraceAbstraction took 850959.67ms. Allocated memory was 450.9MB in the beginning and 1.7GB in the end (delta: 1.2GB). Free memory was 167.6MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 855.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was analyzing trace of length 17 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-60-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 850.9s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 316.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 76.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 55 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 75.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 101 IncrementalHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 8 mSDtfsCounter, 101 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 426.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=4, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.7s SsaConstructionTime, 47.6s SatisfiabilityAnalysisTime, 206.6s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 57 ConstructedInterpolants, 30 QuantifiedInterpolants, 33087 SizeOfPredicates, 1390 NumberOfNonLiveVariables, 16926 ConjunctsInSsa, 1020 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/48 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