/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-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/recursive-simple/id_o1000.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:46:26,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:46:26,143 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:46:26,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:46:26,147 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:46:26,167 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:46:26,167 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:46:26,167 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:46:26,168 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:46:26,170 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:46:26,171 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:46:26,171 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:46:26,171 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:46:26,172 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:46:26,172 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:46:26,173 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:46:26,173 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:46:26,173 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:46:26,173 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:46:26,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:46:26,174 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:46:26,174 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:46:26,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:46:26,174 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:46:26,174 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:46:26,174 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:46:26,175 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:46:26,175 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:46:26,175 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:46:26,175 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:46:26,176 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:46:26,176 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:46:26,176 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:46:26,176 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:46:26,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:46:26,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:46:26,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:46:26,177 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:46:26,177 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:46:26,177 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:46:26,177 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:46:26,177 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:46:26,177 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:46:26,177 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:46:26,178 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:46:26,178 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:46:26,178 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:46:26,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:46:26,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:46:26,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:46:26,373 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:46:26,374 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:46:26,375 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o1000.c [2023-12-16 17:46:27,462 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:46:27,582 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:46:27,583 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id_o1000.c [2023-12-16 17:46:27,587 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2edaee752/7011dd089c424d41a7d951504a4d0ae4/FLAGe68c8175b [2023-12-16 17:46:27,600 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2edaee752/7011dd089c424d41a7d951504a4d0ae4 [2023-12-16 17:46:27,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:46:27,602 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:46:27,604 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:46:27,604 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:46:27,607 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:46:27,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:46:27" (1/1) ... [2023-12-16 17:46:27,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d5946e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:46:27, skipping insertion in model container [2023-12-16 17:46:27,608 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:46:27" (1/1) ... [2023-12-16 17:46:27,622 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:46:27,747 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id_o1000.c[520,533] [2023-12-16 17:46:27,754 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:46:27,764 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:46:27,774 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id_o1000.c[520,533] [2023-12-16 17:46:27,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:46:27,785 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:46:27,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:46:27 WrapperNode [2023-12-16 17:46:27,786 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:46:27,788 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:46:27,788 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:46:27,788 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:46:27,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:46:27" (1/1) ... [2023-12-16 17:46:27,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:46:27" (1/1) ... [2023-12-16 17:46:27,808 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2023-12-16 17:46:27,808 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:46:27,808 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:46:27,809 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:46:27,809 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:46:27,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:46:27" (1/1) ... [2023-12-16 17:46:27,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:46:27" (1/1) ... [2023-12-16 17:46:27,818 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:46:27" (1/1) ... [2023-12-16 17:46:27,825 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 17:46:27,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:46:27" (1/1) ... [2023-12-16 17:46:27,826 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:46:27" (1/1) ... [2023-12-16 17:46:27,828 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:46:27" (1/1) ... [2023-12-16 17:46:27,829 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:46:27" (1/1) ... [2023-12-16 17:46:27,834 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:46:27" (1/1) ... [2023-12-16 17:46:27,835 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:46:27" (1/1) ... [2023-12-16 17:46:27,836 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:46:27,842 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:46:27,842 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:46:27,843 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:46:27,843 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:46:27" (1/1) ... [2023-12-16 17:46:27,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:46:27,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:46:27,863 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 17:46:27,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 17:46:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:46:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:46:27,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:46:27,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:46:27,905 INFO L130 BoogieDeclarations]: Found specification of procedure id [2023-12-16 17:46:27,905 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2023-12-16 17:46:27,964 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:46:27,965 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:46:28,038 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:46:28,054 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:46:28,054 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-16 17:46:28,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:46:28 BoogieIcfgContainer [2023-12-16 17:46:28,055 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:46:28,056 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:46:28,056 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:46:28,058 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:46:28,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:46:27" (1/3) ... [2023-12-16 17:46:28,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aaa7f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:46:28, skipping insertion in model container [2023-12-16 17:46:28,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:46:27" (2/3) ... [2023-12-16 17:46:28,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aaa7f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:46:28, skipping insertion in model container [2023-12-16 17:46:28,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:46:28" (3/3) ... [2023-12-16 17:46:28,060 INFO L112 eAbstractionObserver]: Analyzing ICFG id_o1000.c [2023-12-16 17:46:28,072 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:46:28,073 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:46:28,112 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:46:28,118 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;@171120b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:46:28,118 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:46:28,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 17:46:28,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-16 17:46:28,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:46:28,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:46:28,127 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:46:28,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:46:28,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1493244868, now seen corresponding path program 1 times [2023-12-16 17:46:28,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:46:28,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027617696] [2023-12-16 17:46:28,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:46:28,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:46:28,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:46:28,170 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:46:28,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 17:46:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:46:28,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:46:28,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:46:28,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:46:28,334 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:46:28,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:46:28,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027617696] [2023-12-16 17:46:28,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1027617696] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:46:28,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:46:28,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:46:28,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760191748] [2023-12-16 17:46:28,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:46:28,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:46:28,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:46:28,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:46:28,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:46:28,363 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:46:28,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:46:28,414 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2023-12-16 17:46:28,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:46:28,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2023-12-16 17:46:28,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:46:28,422 INFO L225 Difference]: With dead ends: 23 [2023-12-16 17:46:28,423 INFO L226 Difference]: Without dead ends: 14 [2023-12-16 17:46:28,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:46:28,427 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 1 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:46:28,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 41 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:46:28,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-12-16 17:46:28,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-12-16 17:46:28,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 17:46:28,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2023-12-16 17:46:28,449 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 9 [2023-12-16 17:46:28,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:46:28,449 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2023-12-16 17:46:28,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:46:28,450 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-12-16 17:46:28,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-16 17:46:28,451 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:46:28,451 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:46:28,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 17:46:28,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:46:28,654 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:46:28,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:46:28,655 INFO L85 PathProgramCache]: Analyzing trace with hash -642736818, now seen corresponding path program 1 times [2023-12-16 17:46:28,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:46:28,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232580957] [2023-12-16 17:46:28,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:46:28,655 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:46:28,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:46:28,656 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:46:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:46:28,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:46:28,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:46:28,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:46:28,726 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:46:28,726 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:46:28,813 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:46:28,813 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:46:28,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1232580957] [2023-12-16 17:46:28,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1232580957] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:46:28,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:46:28,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-16 17:46:28,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470249483] [2023-12-16 17:46:28,814 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:46:28,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 17:46:28,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:46:28,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 17:46:28,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:46:28,816 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:46:28,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:46:28,848 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2023-12-16 17:46:28,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 17:46:28,848 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) Word has length 15 [2023-12-16 17:46:28,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:46:28,849 INFO L225 Difference]: With dead ends: 26 [2023-12-16 17:46:28,849 INFO L226 Difference]: Without dead ends: 20 [2023-12-16 17:46:28,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:46:28,850 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:46:28,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:46:28,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-12-16 17:46:28,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-12-16 17:46:28,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 14 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:46:28,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2023-12-16 17:46:28,854 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 15 [2023-12-16 17:46:28,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:46:28,854 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2023-12-16 17:46:28,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:46:28,855 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2023-12-16 17:46:28,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-16 17:46:28,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:46:28,856 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:46:28,862 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 [2023-12-16 17:46:29,057 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 [2023-12-16 17:46:29,058 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:46:29,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:46:29,058 INFO L85 PathProgramCache]: Analyzing trace with hash 54189198, now seen corresponding path program 2 times [2023-12-16 17:46:29,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:46:29,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [107788880] [2023-12-16 17:46:29,059 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 17:46:29,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:46:29,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:46:29,060 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) [2023-12-16 17:46:29,061 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 [2023-12-16 17:46:29,085 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 17:46:29,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:46:29,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 17:46:29,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:46:29,202 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-16 17:46:29,203 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:46:29,406 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-16 17:46:29,407 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:46:29,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [107788880] [2023-12-16 17:46:29,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [107788880] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:46:29,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:46:29,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-12-16 17:46:29,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343044116] [2023-12-16 17:46:29,407 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:46:29,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-16 17:46:29,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:46:29,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-16 17:46:29,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2023-12-16 17:46:29,409 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 20 states, 20 states have (on average 1.2) internal successors, (24), 12 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-16 17:46:29,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:46:29,521 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2023-12-16 17:46:29,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-16 17:46:29,521 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.2) internal successors, (24), 12 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8) Word has length 27 [2023-12-16 17:46:29,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:46:29,522 INFO L225 Difference]: With dead ends: 38 [2023-12-16 17:46:29,522 INFO L226 Difference]: Without dead ends: 32 [2023-12-16 17:46:29,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2023-12-16 17:46:29,523 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:46:29,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 180 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:46:29,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-12-16 17:46:29,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-12-16 17:46:29,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 22 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (9), 8 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-16 17:46:29,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2023-12-16 17:46:29,528 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 27 [2023-12-16 17:46:29,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:46:29,528 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2023-12-16 17:46:29,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.2) internal successors, (24), 12 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-16 17:46:29,528 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2023-12-16 17:46:29,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-16 17:46:29,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:46:29,529 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:46:29,531 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 [2023-12-16 17:46:29,731 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 [2023-12-16 17:46:29,732 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:46:29,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:46:29,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1466649358, now seen corresponding path program 3 times [2023-12-16 17:46:29,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:46:29,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [56327595] [2023-12-16 17:46:29,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-16 17:46:29,733 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:46:29,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:46:29,739 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:46:29,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 17:46:29,802 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-12-16 17:46:29,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:46:29,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-16 17:46:29,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:46:30,019 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-12-16 17:46:30,020 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:46:30,643 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-12-16 17:46:30,643 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:46:30,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [56327595] [2023-12-16 17:46:30,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [56327595] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:46:30,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:46:30,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2023-12-16 17:46:30,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950358803] [2023-12-16 17:46:30,644 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:46:30,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-16 17:46:30,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:46:30,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-16 17:46:30,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1076, Unknown=0, NotChecked=0, Total=1260 [2023-12-16 17:46:30,646 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 36 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 20 states have internal predecessors, (40), 1 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-16 17:46:31,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:46:31,081 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2023-12-16 17:46:31,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-16 17:46:31,082 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 20 states have internal predecessors, (40), 1 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) Word has length 51 [2023-12-16 17:46:31,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:46:31,083 INFO L225 Difference]: With dead ends: 62 [2023-12-16 17:46:31,083 INFO L226 Difference]: Without dead ends: 56 [2023-12-16 17:46:31,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=382, Invalid=1874, Unknown=0, NotChecked=0, Total=2256 [2023-12-16 17:46:31,085 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:46:31,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 429 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:46:31,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-12-16 17:46:31,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-12-16 17:46:31,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.027027027027027) internal successors, (38), 38 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (17), 16 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:46:31,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2023-12-16 17:46:31,091 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 51 [2023-12-16 17:46:31,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:46:31,091 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2023-12-16 17:46:31,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 20 states have internal predecessors, (40), 1 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-16 17:46:31,092 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2023-12-16 17:46:31,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 17:46:31,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:46:31,093 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:46:31,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 17:46:31,296 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 [2023-12-16 17:46:31,296 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:46:31,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:46:31,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1758730226, now seen corresponding path program 4 times [2023-12-16 17:46:31,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:46:31,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364792490] [2023-12-16 17:46:31,297 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-16 17:46:31,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:46:31,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:46:31,298 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) [2023-12-16 17:46:31,319 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 [2023-12-16 17:46:31,353 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-16 17:46:31,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:46:31,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-16 17:46:31,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:46:31,894 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2023-12-16 17:46:31,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:46:34,002 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2023-12-16 17:46:34,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:46:34,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364792490] [2023-12-16 17:46:34,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [364792490] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:46:34,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:46:34,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 68 [2023-12-16 17:46:34,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371501888] [2023-12-16 17:46:34,003 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:46:34,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2023-12-16 17:46:34,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:46:34,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2023-12-16 17:46:34,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=616, Invalid=3940, Unknown=0, NotChecked=0, Total=4556 [2023-12-16 17:46:34,006 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand has 68 states, 68 states have (on average 1.0588235294117647) internal successors, (72), 36 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 32 states have return successors, (32), 32 states have call predecessors, (32), 1 states have call successors, (32) [2023-12-16 17:46:35,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:46:35,965 INFO L93 Difference]: Finished difference Result 110 states and 126 transitions. [2023-12-16 17:46:35,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-12-16 17:46:35,966 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 1.0588235294117647) internal successors, (72), 36 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 32 states have return successors, (32), 32 states have call predecessors, (32), 1 states have call successors, (32) Word has length 99 [2023-12-16 17:46:35,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:46:35,967 INFO L225 Difference]: With dead ends: 110 [2023-12-16 17:46:35,967 INFO L226 Difference]: Without dead ends: 104 [2023-12-16 17:46:35,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1526, Invalid=7594, Unknown=0, NotChecked=0, Total=9120 [2023-12-16 17:46:35,972 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:46:35,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1165 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:46:35,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-12-16 17:46:35,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2023-12-16 17:46:35,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 69 states have (on average 1.0144927536231885) internal successors, (70), 70 states have internal predecessors, (70), 2 states have call successors, (2), 1 states have call predecessors, (2), 32 states have return successors, (33), 32 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-16 17:46:35,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 105 transitions. [2023-12-16 17:46:35,982 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 105 transitions. Word has length 99 [2023-12-16 17:46:35,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:46:35,983 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 105 transitions. [2023-12-16 17:46:35,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 1.0588235294117647) internal successors, (72), 36 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 32 states have return successors, (32), 32 states have call predecessors, (32), 1 states have call successors, (32) [2023-12-16 17:46:35,983 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 105 transitions. [2023-12-16 17:46:35,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-16 17:46:35,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:46:35,989 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:46:35,995 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 [2023-12-16 17:46:36,193 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 [2023-12-16 17:46:36,193 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:46:36,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:46:36,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1940660750, now seen corresponding path program 5 times [2023-12-16 17:46:36,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:46:36,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992251354] [2023-12-16 17:46:36,195 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-16 17:46:36,195 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:46:36,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:46:36,196 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:46:36,219 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 (7)] Waiting until timeout for monitored process [2023-12-16 17:46:36,395 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2023-12-16 17:46:36,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:46:36,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 66 conjunts are in the unsatisfiable core [2023-12-16 17:46:36,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:46:38,176 INFO L134 CoverageAnalysis]: Checked inductivity of 2914 backedges. 0 proven. 1457 refuted. 0 times theorem prover too weak. 1457 trivial. 0 not checked. [2023-12-16 17:46:38,176 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:46:44,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2914 backedges. 0 proven. 1457 refuted. 0 times theorem prover too weak. 1457 trivial. 0 not checked. [2023-12-16 17:46:44,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:46:44,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992251354] [2023-12-16 17:46:44,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992251354] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:46:44,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:46:44,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67] total 132 [2023-12-16 17:46:44,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129634983] [2023-12-16 17:46:44,870 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:46:44,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 132 states [2023-12-16 17:46:44,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:46:44,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2023-12-16 17:46:44,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2248, Invalid=15044, Unknown=0, NotChecked=0, Total=17292 [2023-12-16 17:46:44,883 INFO L87 Difference]: Start difference. First operand 104 states and 105 transitions. Second operand has 132 states, 132 states have (on average 1.0303030303030303) internal successors, (136), 68 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 64 states have return successors, (64), 64 states have call predecessors, (64), 1 states have call successors, (64) [2023-12-16 17:46:53,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:46:53,304 INFO L93 Difference]: Finished difference Result 206 states and 238 transitions. [2023-12-16 17:46:53,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2023-12-16 17:46:53,305 INFO L78 Accepts]: Start accepts. Automaton has has 132 states, 132 states have (on average 1.0303030303030303) internal successors, (136), 68 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 64 states have return successors, (64), 64 states have call predecessors, (64), 1 states have call successors, (64) Word has length 195 [2023-12-16 17:46:53,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:46:53,309 INFO L225 Difference]: With dead ends: 206 [2023-12-16 17:46:53,309 INFO L226 Difference]: Without dead ends: 200 [2023-12-16 17:46:53,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2889 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=6118, Invalid=30554, Unknown=0, NotChecked=0, Total=36672 [2023-12-16 17:46:53,315 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 3845 mSDsCounter, 0 mSdLazyCounter, 3306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3917 SdHoareTripleChecker+Invalid, 3306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 17:46:53,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3917 Invalid, 3306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3306 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 17:46:53,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-12-16 17:46:53,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2023-12-16 17:46:53,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 133 states have (on average 1.0075187969924813) internal successors, (134), 134 states have internal predecessors, (134), 2 states have call successors, (2), 1 states have call predecessors, (2), 64 states have return successors, (65), 64 states have call predecessors, (65), 2 states have call successors, (65) [2023-12-16 17:46:53,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 201 transitions. [2023-12-16 17:46:53,337 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 201 transitions. Word has length 195 [2023-12-16 17:46:53,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:46:53,338 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 201 transitions. [2023-12-16 17:46:53,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 132 states, 132 states have (on average 1.0303030303030303) internal successors, (136), 68 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 64 states have return successors, (64), 64 states have call predecessors, (64), 1 states have call successors, (64) [2023-12-16 17:46:53,339 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 201 transitions. [2023-12-16 17:46:53,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2023-12-16 17:46:53,342 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:46:53,342 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:46:53,362 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 (7)] Ended with exit code 0 [2023-12-16 17:46:53,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:46:53,543 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:46:53,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:46:53,543 INFO L85 PathProgramCache]: Analyzing trace with hash 480810510, now seen corresponding path program 6 times [2023-12-16 17:46:53,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:46:53,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643426322] [2023-12-16 17:46:53,544 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-16 17:46:53,544 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:46:53,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:46:53,545 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:46:53,546 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 (8)] Waiting until timeout for monitored process [2023-12-16 17:46:54,034 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2023-12-16 17:46:54,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:46:54,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 130 conjunts are in the unsatisfiable core [2023-12-16 17:46:54,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:46:59,524 INFO L134 CoverageAnalysis]: Checked inductivity of 11970 backedges. 0 proven. 5985 refuted. 0 times theorem prover too weak. 5985 trivial. 0 not checked. [2023-12-16 17:46:59,524 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:47:22,125 INFO L134 CoverageAnalysis]: Checked inductivity of 11970 backedges. 0 proven. 5985 refuted. 0 times theorem prover too weak. 5985 trivial. 0 not checked. [2023-12-16 17:47:22,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:47:22,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643426322] [2023-12-16 17:47:22,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1643426322] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:47:22,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:47:22,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [131, 131] total 260 [2023-12-16 17:47:22,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017165602] [2023-12-16 17:47:22,126 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:47:22,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 260 states [2023-12-16 17:47:22,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:47:22,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 260 interpolants. [2023-12-16 17:47:22,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8584, Invalid=58756, Unknown=0, NotChecked=0, Total=67340 [2023-12-16 17:47:22,134 INFO L87 Difference]: Start difference. First operand 200 states and 201 transitions. Second operand has 260 states, 260 states have (on average 1.0153846153846153) internal successors, (264), 132 states have internal predecessors, (264), 1 states have call successors, (2), 1 states have call predecessors, (2), 128 states have return successors, (128), 128 states have call predecessors, (128), 1 states have call successors, (128) Received shutdown request... [2023-12-16 17:47:41,224 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 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:47:41,224 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:47:41,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2023-12-16 17:47:41,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 798 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 283 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4612 ImplicationChecksByTransitivity, 32.1s TimeCoverageRelationStatistics Valid=11796, Invalid=69144, Unknown=0, NotChecked=0, Total=80940 [2023-12-16 17:47:41,282 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 13341 mSDsCounter, 0 mSdLazyCounter, 12574 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13475 SdHoareTripleChecker+Invalid, 12574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:47:41,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13475 Invalid, 12574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12574 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-16 17:47:41,283 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:47:41,292 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 (8)] Forceful destruction successful, exit code 0 [2023-12-16 17:47:41,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:47:41,492 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (200states) and FLOYD_HOARE automaton (currently 158 states, 260 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-51-1 term,while SimplifyDDA2 was simplifying 51 xjuncts wrt. a ATOM-1 context. [2023-12-16 17:47:41,495 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1] [2023-12-16 17:47:41,497 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:47:41,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:47:41 BoogieIcfgContainer [2023-12-16 17:47:41,498 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:47:41,499 INFO L158 Benchmark]: Toolchain (without parser) took 73896.63ms. Allocated memory was 233.8MB in the beginning and 702.5MB in the end (delta: 468.7MB). Free memory was 193.0MB in the beginning and 281.6MB in the end (delta: -88.6MB). Peak memory consumption was 381.2MB. Max. memory is 8.0GB. [2023-12-16 17:47:41,499 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 127.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:47:41,499 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.47ms. Allocated memory is still 233.8MB. Free memory was 193.0MB in the beginning and 182.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 17:47:41,499 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.52ms. Allocated memory is still 233.8MB. Free memory was 182.0MB in the beginning and 181.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-16 17:47:41,500 INFO L158 Benchmark]: Boogie Preprocessor took 28.17ms. Allocated memory is still 233.8MB. Free memory was 181.0MB in the beginning and 178.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:47:41,509 INFO L158 Benchmark]: RCFGBuilder took 212.39ms. Allocated memory is still 233.8MB. Free memory was 178.9MB in the beginning and 168.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 17:47:41,509 INFO L158 Benchmark]: TraceAbstraction took 73442.34ms. Allocated memory was 233.8MB in the beginning and 702.5MB in the end (delta: 468.7MB). Free memory was 167.9MB in the beginning and 281.6MB in the end (delta: -113.7MB). Peak memory consumption was 356.0MB. Max. memory is 8.0GB. [2023-12-16 17:47:41,510 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 127.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 182.47ms. Allocated memory is still 233.8MB. Free memory was 193.0MB in the beginning and 182.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.52ms. Allocated memory is still 233.8MB. Free memory was 182.0MB in the beginning and 181.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.17ms. Allocated memory is still 233.8MB. Free memory was 181.0MB in the beginning and 178.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 212.39ms. Allocated memory is still 233.8MB. Free memory was 178.9MB in the beginning and 168.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 73442.34ms. Allocated memory was 233.8MB in the beginning and 702.5MB in the end (delta: 468.7MB). Free memory was 167.9MB in the beginning and 281.6MB in the end (delta: -113.7MB). Peak memory consumption was 356.0MB. 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: 15]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 15). Cancelled while NwaCegarLoop was constructing difference of abstraction (200states) and FLOYD_HOARE automaton (currently 158 states, 260 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-51-1 term,while SimplifyDDA2 was simplifying 51 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 73.4s, OverallIterations: 7, TraceHistogramMax: 64, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 30.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 19314 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19005 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17124 IncrementalHoareTripleChecker+Invalid, 17124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 309 mSDtfsCounter, 17124 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1674 GetRequests, 1025 SyntacticMatches, 0 SemanticMatches, 648 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8377 ImplicationChecksByTransitivity, 48.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=200occurred in iteration=6, InterpolantAutomatonStates: 268, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 40.6s InterpolantComputationTime, 783 NumberOfCodeBlocks, 783 NumberOfCodeBlocksAsserted, 109 NumberOfCheckSat, 1544 ConstructedInterpolants, 0 QuantifiedInterpolants, 3472 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1121 ConjunctsInSsa, 268 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 15762/31524 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