/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.sokoban.2.prop1-func-interl.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-26 16:03:03,748 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-26 16:03:03,806 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 16:03:03,811 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-26 16:03:03,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-26 16:03:03,837 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-26 16:03:03,838 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-26 16:03:03,838 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-26 16:03:03,839 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-26 16:03:03,841 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-26 16:03:03,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-26 16:03:03,842 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-26 16:03:03,842 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-26 16:03:03,843 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-26 16:03:03,843 INFO L153 SettingsManager]: * Use SBE=true [2023-12-26 16:03:03,843 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-26 16:03:03,844 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-26 16:03:03,845 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-26 16:03:03,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-26 16:03:03,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-26 16:03:03,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-26 16:03:03,845 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-26 16:03:03,845 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-26 16:03:03,846 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-26 16:03:03,846 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-26 16:03:03,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-26 16:03:03,846 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-26 16:03:03,846 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-26 16:03:03,847 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-26 16:03:03,847 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-26 16:03:03,847 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-26 16:03:03,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-26 16:03:03,848 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-26 16:03:03,848 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-26 16:03:03,848 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-26 16:03:03,848 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-26 16:03:03,848 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-26 16:03:03,848 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-26 16:03:03,848 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-26 16:03:03,848 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-26 16:03:03,849 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-26 16:03:03,849 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-26 16:03:03,849 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-26 16:03:03,849 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-26 16:03:04,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-26 16:03:04,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-26 16:03:04,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-26 16:03:04,056 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-26 16:03:04,057 INFO L274 PluginConnector]: CDTParser initialized [2023-12-26 16:03:04,057 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.sokoban.2.prop1-func-interl.c [2023-12-26 16:03:05,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-26 16:03:05,421 INFO L384 CDTParser]: Found 1 translation units. [2023-12-26 16:03:05,422 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.sokoban.2.prop1-func-interl.c [2023-12-26 16:03:05,449 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33268d294/f9561b5392724b82acbb3e8b140f10d0/FLAG579cddadd [2023-12-26 16:03:05,461 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33268d294/f9561b5392724b82acbb3e8b140f10d0 [2023-12-26 16:03:05,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-26 16:03:05,464 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-26 16:03:05,466 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-26 16:03:05,466 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-26 16:03:05,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-26 16:03:05,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 04:03:05" (1/1) ... [2023-12-26 16:03:05,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e0ff17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:03:05, skipping insertion in model container [2023-12-26 16:03:05,470 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 04:03:05" (1/1) ... [2023-12-26 16:03:05,565 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-26 16:03:05,788 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.sokoban.2.prop1-func-interl.c[1174,1187] [2023-12-26 16:03:06,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-26 16:03:06,304 INFO L202 MainTranslator]: Completed pre-run [2023-12-26 16:03:06,313 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.sokoban.2.prop1-func-interl.c[1174,1187] [2023-12-26 16:03:06,620 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-26 16:03:06,629 INFO L206 MainTranslator]: Completed translation [2023-12-26 16:03:06,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:03:06 WrapperNode [2023-12-26 16:03:06,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-26 16:03:06,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-26 16:03:06,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-26 16:03:06,631 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-26 16:03:06,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:03:06" (1/1) ... [2023-12-26 16:03:06,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:03:06" (1/1) ... [2023-12-26 16:03:07,029 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 8205 [2023-12-26 16:03:07,029 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-26 16:03:07,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-26 16:03:07,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-26 16:03:07,030 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-26 16:03:07,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:03:06" (1/1) ... [2023-12-26 16:03:07,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:03:06" (1/1) ... [2023-12-26 16:03:07,104 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:03:06" (1/1) ... [2023-12-26 16:03:07,217 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 16:03:07,217 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:03:06" (1/1) ... [2023-12-26 16:03:07,218 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:03:06" (1/1) ... [2023-12-26 16:03:07,306 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:03:06" (1/1) ... [2023-12-26 16:03:07,325 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:03:06" (1/1) ... [2023-12-26 16:03:07,342 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:03:06" (1/1) ... [2023-12-26 16:03:07,362 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:03:06" (1/1) ... [2023-12-26 16:03:07,394 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-26 16:03:07,395 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-26 16:03:07,395 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-26 16:03:07,395 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-26 16:03:07,396 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:03:06" (1/1) ... [2023-12-26 16:03:07,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-26 16:03:07,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-26 16:03:07,418 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 16:03:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-26 16:03:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-26 16:03:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-26 16:03:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-26 16:03:07,444 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 16:03:08,359 INFO L241 CfgBuilder]: Building ICFG [2023-12-26 16:03:08,361 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-26 16:03:33,113 INFO L282 CfgBuilder]: Performing block encoding [2023-12-26 16:03:33,454 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-26 16:03:33,454 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-26 16:03:33,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 04:03:33 BoogieIcfgContainer [2023-12-26 16:03:33,455 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-26 16:03:33,457 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-26 16:03:33,457 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-26 16:03:33,459 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-26 16:03:33,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 04:03:05" (1/3) ... [2023-12-26 16:03:33,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d05606e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 04:03:33, skipping insertion in model container [2023-12-26 16:03:33,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 04:03:06" (2/3) ... [2023-12-26 16:03:33,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d05606e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 04:03:33, skipping insertion in model container [2023-12-26 16:03:33,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 04:03:33" (3/3) ... [2023-12-26 16:03:33,461 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sokoban.2.prop1-func-interl.c [2023-12-26 16:03:33,471 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-26 16:03:33,472 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-26 16:03:33,503 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-26 16:03:33,507 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;@312238cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-26 16:03:33,507 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-26 16:03:33,510 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 16:03:33,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-26 16:03:33,514 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 16:03:33,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-26 16:03:33,516 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 16:03:33,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 16:03:33,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-12-26 16:03:33,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 16:03:33,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597591785] [2023-12-26 16:03:33,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 16:03:33,531 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 16:03:33,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 16:03:33,533 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 16:03:33,579 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 16:03:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 16:03:34,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-26 16:03:34,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 16:03:34,954 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 16:03:34,955 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-26 16:03:34,955 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 16:03:34,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597591785] [2023-12-26 16:03:34,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597591785] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-26 16:03:34,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-26 16:03:34,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-26 16:03:34,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040674192] [2023-12-26 16:03:34,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-26 16:03:34,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-26 16:03:34,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 16:03:34,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-26 16:03:34,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-26 16:03:34,980 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 16:03:39,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-26 16:03:43,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-26 16:03:47,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-26 16:03:51,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-26 16:03:55,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-26 16:03:55,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 16:03:55,954 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-12-26 16:03:56,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-26 16:03:56,033 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 16:03:56,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 16:03:56,037 INFO L225 Difference]: With dead ends: 16 [2023-12-26 16:03:56,038 INFO L226 Difference]: Without dead ends: 9 [2023-12-26 16:03:56,039 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 16:03:56,041 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2023-12-26 16:03:56,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 5 Unknown, 0 Unchecked, 20.9s Time] [2023-12-26 16:03:56,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-26 16:03:56,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-12-26 16:03:56,059 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 16:03:56,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-26 16:03:56,061 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-12-26 16:03:56,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 16:03:56,061 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-12-26 16:03:56,061 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 16:03:56,061 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-26 16:03:56,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-26 16:03:56,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 16:03:56,061 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-12-26 16:03:56,070 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 16:03:56,267 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 16:03:56,268 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 16:03:56,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 16:03:56,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-12-26 16:03:56,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 16:03:56,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025226391] [2023-12-26 16:03:56,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 16:03:56,282 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 16:03:56,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 16:03:56,283 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 16:03:56,285 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 16:04:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 16:04:09,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 7699 conjuncts, 60 conjunts are in the unsatisfiable core [2023-12-26 16:04:09,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 16:04:10,526 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 16:04:10,526 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 16:04:19,959 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 16:04:19,960 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 16:04:19,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2025226391] [2023-12-26 16:04:19,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2025226391] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-26 16:04:19,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-26 16:04:19,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-26 16:04:19,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114173217] [2023-12-26 16:04:19,960 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-26 16:04:19,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-26 16:04:19,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 16:04:19,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-26 16:04:19,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=62, Unknown=2, NotChecked=0, Total=90 [2023-12-26 16:04:19,962 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 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 16:04:22,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:04:28,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-26 16:04:32,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:04:36,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-26 16:04:40,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:04:45,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-26 16:04:49,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-26 16:04:53,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-26 16:04:53,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 16:04:53,174 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-12-26 16:04:53,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-26 16:04:53,247 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 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 16:04:53,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 16:04:53,247 INFO L225 Difference]: With dead ends: 14 [2023-12-26 16:04:53,248 INFO L226 Difference]: Without dead ends: 12 [2023-12-26 16:04:53,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=50, Invalid=104, Unknown=2, NotChecked=0, Total=156 [2023-12-26 16:04:53,249 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.6s IncrementalHoareTripleChecker+Time [2023-12-26 16:04:53,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 16 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 7 Unknown, 0 Unchecked, 32.6s Time] [2023-12-26 16:04:53,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-12-26 16:04:53,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-12-26 16:04:53,251 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 16:04:53,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-12-26 16:04:53,252 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-12-26 16:04:53,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 16:04:53,252 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-12-26 16:04:53,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 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 16:04:53,252 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-12-26 16:04:53,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-26 16:04:53,252 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 16:04:53,253 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-12-26 16:04:53,338 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 16:04:53,470 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 16:04:53,470 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 16:04:53,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 16:04:53,471 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-12-26 16:04:53,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 16:04:53,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [26563522] [2023-12-26 16:04:53,485 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-26 16:04:53,485 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 16:04:53,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 16:04:53,486 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 16:04:53,487 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 16:05:30,606 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-26 16:05:30,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-26 16:05:30,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 15162 conjuncts, 219 conjunts are in the unsatisfiable core [2023-12-26 16:05:31,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 16:05:35,711 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 16:05:35,711 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-26 16:17:36,150 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 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-26 16:17:36,151 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 16:17:37,025 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-26 16:17:37,199 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 16:17:37,226 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 16:17:37,227 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 11 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-8-1 term,while PolyPacSimplificationTermWalker was simplifying 8 xjuncts wrt. a ∧-2-1 context. [2023-12-26 16:17:37,231 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-12-26 16:17:37,234 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-26 16:17:37,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 04:17:37 BoogieIcfgContainer [2023-12-26 16:17:37,236 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-26 16:17:37,237 INFO L158 Benchmark]: Toolchain (without parser) took 871772.37ms. Allocated memory was 181.4MB in the beginning and 1.0GB in the end (delta: 828.4MB). Free memory was 117.9MB in the beginning and 381.3MB in the end (delta: -263.3MB). Peak memory consumption was 816.4MB. Max. memory is 8.0GB. [2023-12-26 16:17:37,237 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 181.4MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-26 16:17:37,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1164.17ms. Allocated memory was 181.4MB in the beginning and 336.6MB in the end (delta: 155.2MB). Free memory was 117.9MB in the beginning and 244.6MB in the end (delta: -126.7MB). Peak memory consumption was 209.2MB. Max. memory is 8.0GB. [2023-12-26 16:17:37,238 INFO L158 Benchmark]: Boogie Procedure Inliner took 398.52ms. Allocated memory is still 336.6MB. Free memory was 244.6MB in the beginning and 219.5MB in the end (delta: 25.1MB). Peak memory consumption was 100.7MB. Max. memory is 8.0GB. [2023-12-26 16:17:37,238 INFO L158 Benchmark]: Boogie Preprocessor took 364.20ms. Allocated memory was 336.6MB in the beginning and 673.2MB in the end (delta: 336.6MB). Free memory was 219.5MB in the beginning and 527.5MB in the end (delta: -308.0MB). Peak memory consumption was 30.9MB. Max. memory is 8.0GB. [2023-12-26 16:17:37,239 INFO L158 Benchmark]: RCFGBuilder took 26060.13ms. Allocated memory was 673.2MB in the beginning and 1.0GB in the end (delta: 336.6MB). Free memory was 527.5MB in the beginning and 818.2MB in the end (delta: -290.7MB). Peak memory consumption was 631.5MB. Max. memory is 8.0GB. [2023-12-26 16:17:37,239 INFO L158 Benchmark]: TraceAbstraction took 843779.39ms. Allocated memory is still 1.0GB. Free memory was 817.7MB in the beginning and 381.3MB in the end (delta: 436.4MB). Peak memory consumption was 689.0MB. Max. memory is 8.0GB. [2023-12-26 16:17:37,253 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 181.4MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1164.17ms. Allocated memory was 181.4MB in the beginning and 336.6MB in the end (delta: 155.2MB). Free memory was 117.9MB in the beginning and 244.6MB in the end (delta: -126.7MB). Peak memory consumption was 209.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 398.52ms. Allocated memory is still 336.6MB. Free memory was 244.6MB in the beginning and 219.5MB in the end (delta: 25.1MB). Peak memory consumption was 100.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 364.20ms. Allocated memory was 336.6MB in the beginning and 673.2MB in the end (delta: 336.6MB). Free memory was 219.5MB in the beginning and 527.5MB in the end (delta: -308.0MB). Peak memory consumption was 30.9MB. Max. memory is 8.0GB. * RCFGBuilder took 26060.13ms. Allocated memory was 673.2MB in the beginning and 1.0GB in the end (delta: 336.6MB). Free memory was 527.5MB in the beginning and 818.2MB in the end (delta: -290.7MB). Peak memory consumption was 631.5MB. Max. memory is 8.0GB. * TraceAbstraction took 843779.39ms. Allocated memory is still 1.0GB. Free memory was 817.7MB in the beginning and 381.3MB in the end (delta: 436.4MB). Peak memory consumption was 689.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was analyzing trace of length 11 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-8-1 term,while PolyPacSimplificationTermWalker was simplifying 8 xjuncts wrt. a ∧-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 843.7s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 54.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 53.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 53.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 5 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 11.5s SatisfiabilityAnalysisTime, 10.9s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 6 QuantifiedInterpolants, 1373 SizeOfPredicates, 83 NumberOfNonLiveVariables, 7935 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 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