/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-33.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-02 21:45:47,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 21:45:47,833 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-02 21:45:47,839 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 21:45:47,839 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 21:45:47,861 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 21:45:47,861 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 21:45:47,862 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 21:45:47,862 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-02 21:45:47,865 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-02 21:45:47,865 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 21:45:47,866 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 21:45:47,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 21:45:47,866 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 21:45:47,866 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 21:45:47,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 21:45:47,867 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 21:45:47,867 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 21:45:47,867 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 21:45:47,867 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 21:45:47,867 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 21:45:47,869 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 21:45:47,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 21:45:47,869 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 21:45:47,870 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 21:45:47,870 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 21:45:47,870 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 21:45:47,870 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 21:45:47,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 21:45:47,870 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 21:45:47,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 21:45:47,871 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 21:45:47,871 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 21:45:47,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 21:45:47,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 21:45:47,871 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 21:45:47,871 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 21:45:47,871 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 21:45:47,871 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-02 21:45:47,872 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 21:45:47,872 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 21:45:47,872 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-02 21:45:47,873 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-02 21:45:47,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 21:45:47,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:45:48,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 21:45:48,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 21:45:48,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 21:45:48,073 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 21:45:48,073 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 21:45:48,074 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-33.i [2024-11-02 21:45:49,330 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 21:45:49,450 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 21:45:49,450 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-33.i [2024-11-02 21:45:49,455 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e996813/ebbadd26d26b45f6aae2e0dac7ff6088/FLAG06d65ca63 [2024-11-02 21:45:49,875 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e996813/ebbadd26d26b45f6aae2e0dac7ff6088 [2024-11-02 21:45:49,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 21:45:49,879 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-02 21:45:49,880 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 21:45:49,880 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 21:45:49,887 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 21:45:49,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:45:49" (1/1) ... [2024-11-02 21:45:49,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7169a3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:49, skipping insertion in model container [2024-11-02 21:45:49,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:45:49" (1/1) ... [2024-11-02 21:45:49,903 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 21:45:50,030 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-33.i[915,928] [2024-11-02 21:45:50,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 21:45:50,056 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 21:45:50,063 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-33.i[915,928] [2024-11-02 21:45:50,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 21:45:50,084 INFO L204 MainTranslator]: Completed translation [2024-11-02 21:45:50,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:50 WrapperNode [2024-11-02 21:45:50,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 21:45:50,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 21:45:50,086 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 21:45:50,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 21:45:50,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:50" (1/1) ... [2024-11-02 21:45:50,097 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:50" (1/1) ... [2024-11-02 21:45:50,109 INFO L138 Inliner]: procedures = 27, calls = 16, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 57 [2024-11-02 21:45:50,110 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 21:45:50,110 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 21:45:50,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 21:45:50,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 21:45:50,124 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:50" (1/1) ... [2024-11-02 21:45:50,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:50" (1/1) ... [2024-11-02 21:45:50,127 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:50" (1/1) ... [2024-11-02 21:45:50,135 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]. [2024-11-02 21:45:50,136 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:50" (1/1) ... [2024-11-02 21:45:50,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:50" (1/1) ... [2024-11-02 21:45:50,140 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:50" (1/1) ... [2024-11-02 21:45:50,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:50" (1/1) ... [2024-11-02 21:45:50,148 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:50" (1/1) ... [2024-11-02 21:45:50,149 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:50" (1/1) ... [2024-11-02 21:45:50,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 21:45:50,154 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 21:45:50,154 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 21:45:50,155 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 21:45:50,155 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:50" (1/1) ... [2024-11-02 21:45:50,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 21:45:50,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:45:50,175 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) [2024-11-02 21:45:50,177 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 [2024-11-02 21:45:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 21:45:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-02 21:45:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 21:45:50,195 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 21:45:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 21:45:50,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 21:45:50,261 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 21:45:50,263 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 21:45:50,375 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-02 21:45:50,376 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 21:45:50,384 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 21:45:50,384 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 21:45:50,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:45:50 BoogieIcfgContainer [2024-11-02 21:45:50,385 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 21:45:50,386 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 21:45:50,386 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 21:45:50,389 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 21:45:50,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:45:49" (1/3) ... [2024-11-02 21:45:50,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be20df8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:45:50, skipping insertion in model container [2024-11-02 21:45:50,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:50" (2/3) ... [2024-11-02 21:45:50,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be20df8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:45:50, skipping insertion in model container [2024-11-02 21:45:50,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:45:50" (3/3) ... [2024-11-02 21:45:50,392 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-33.i [2024-11-02 21:45:50,403 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 21:45:50,403 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 21:45:50,443 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 21:45:50,447 INFO L333 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, 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;@3b03f7b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 21:45:50,448 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 21:45:50,450 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 20 states have (on average 1.35) internal successors, (27), 21 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 21:45:50,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-02 21:45:50,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:45:50,457 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 21:45:50,457 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:45:50,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:45:50,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1440290685, now seen corresponding path program 1 times [2024-11-02 21:45:50,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:45:50,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [617151516] [2024-11-02 21:45:50,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:45:50,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:45:50,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:45:50,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 21:45:50,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 21:45:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:45:50,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 21:45:50,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:45:50,563 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-02 21:45:50,563 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:45:50,585 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-02 21:45:50,585 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:45:50,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [617151516] [2024-11-02 21:45:50,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [617151516] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 21:45:50,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 21:45:50,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-02 21:45:50,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614711747] [2024-11-02 21:45:50,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 21:45:50,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 21:45:50,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:45:50,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 21:45:50,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 21:45:50,608 INFO L87 Difference]: Start difference. First operand has 26 states, 20 states have (on average 1.35) internal successors, (27), 21 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-02 21:45:50,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:45:50,620 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2024-11-02 21:45:50,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 21:45:50,622 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2024-11-02 21:45:50,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:45:50,626 INFO L225 Difference]: With dead ends: 45 [2024-11-02 21:45:50,626 INFO L226 Difference]: Without dead ends: 22 [2024-11-02 21:45:50,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 21:45:50,630 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 21:45:50,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 21:45:50,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-02 21:45:50,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-02 21:45:50,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 21:45:50,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2024-11-02 21:45:50,653 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 27 [2024-11-02 21:45:50,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:45:50,654 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2024-11-02 21:45:50,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-02 21:45:50,654 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2024-11-02 21:45:50,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-02 21:45:50,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:45:50,656 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 21:45:50,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-02 21:45:50,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:45:50,857 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:45:50,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:45:50,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1705969281, now seen corresponding path program 1 times [2024-11-02 21:45:50,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:45:50,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182856989] [2024-11-02 21:45:50,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:45:50,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:45:50,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:45:50,860 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 21:45:50,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 21:45:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:45:50,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 21:45:50,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:45:50,956 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-02 21:45:50,957 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:45:50,989 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-02 21:45:50,989 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:45:50,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182856989] [2024-11-02 21:45:50,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1182856989] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 21:45:50,990 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 21:45:50,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-02 21:45:50,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933627078] [2024-11-02 21:45:50,990 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 21:45:50,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 21:45:50,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:45:50,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 21:45:50,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 21:45:50,993 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-02 21:45:51,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:45:51,004 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2024-11-02 21:45:51,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 21:45:51,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-11-02 21:45:51,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:45:51,005 INFO L225 Difference]: With dead ends: 41 [2024-11-02 21:45:51,005 INFO L226 Difference]: Without dead ends: 22 [2024-11-02 21:45:51,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 21:45:51,006 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 21:45:51,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 21:45:51,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-02 21:45:51,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-02 21:45:51,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 21:45:51,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2024-11-02 21:45:51,013 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 27 [2024-11-02 21:45:51,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:45:51,015 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-11-02 21:45:51,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-02 21:45:51,016 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-11-02 21:45:51,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-02 21:45:51,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:45:51,017 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 21:45:51,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 21:45:51,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:45:51,218 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:45:51,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:45:51,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1109879818, now seen corresponding path program 1 times [2024-11-02 21:45:51,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:45:51,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349879748] [2024-11-02 21:45:51,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:45:51,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:45:51,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:45:51,221 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 21:45:51,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 21:45:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:45:51,275 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-02 21:45:51,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:45:51,855 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-02 21:45:51,856 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:45:52,156 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-02 21:45:52,157 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:45:52,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349879748] [2024-11-02 21:45:52,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1349879748] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 21:45:52,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-02 21:45:52,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-11-02 21:45:52,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289697779] [2024-11-02 21:45:52,160 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-02 21:45:52,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-02 21:45:52,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:45:52,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-02 21:45:52,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-02 21:45:52,163 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 2 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-02 21:45:52,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:45:52,549 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2024-11-02 21:45:52,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-02 21:45:52,549 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 2 states have call predecessors, (6), 4 states have call successors, (6) Word has length 28 [2024-11-02 21:45:52,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:45:52,550 INFO L225 Difference]: With dead ends: 36 [2024-11-02 21:45:52,550 INFO L226 Difference]: Without dead ends: 34 [2024-11-02 21:45:52,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2024-11-02 21:45:52,551 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 57 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 21:45:52,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 119 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 21:45:52,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-02 21:45:52,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 29. [2024-11-02 21:45:52,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 21:45:52,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2024-11-02 21:45:52,559 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 28 [2024-11-02 21:45:52,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:45:52,559 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2024-11-02 21:45:52,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 2 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-02 21:45:52,560 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2024-11-02 21:45:52,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-02 21:45:52,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:45:52,561 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 21:45:52,577 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-02 21:45:52,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:45:52,762 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:45:52,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:45:52,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1111726860, now seen corresponding path program 1 times [2024-11-02 21:45:52,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:45:52,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466816289] [2024-11-02 21:45:52,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:45:52,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:45:52,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:45:52,767 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 21:45:52,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 21:45:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:45:52,808 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 21:45:52,809 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:45:52,818 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-02 21:45:52,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:45:52,833 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-02 21:45:52,833 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:45:52,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466816289] [2024-11-02 21:45:52,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1466816289] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 21:45:52,834 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 21:45:52,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-02 21:45:52,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101554229] [2024-11-02 21:45:52,834 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 21:45:52,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 21:45:52,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:45:52,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 21:45:52,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 21:45:52,835 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-02 21:45:52,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:45:52,846 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2024-11-02 21:45:52,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 21:45:52,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2024-11-02 21:45:52,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:45:52,847 INFO L225 Difference]: With dead ends: 50 [2024-11-02 21:45:52,847 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 21:45:52,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 21:45:52,848 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 21:45:52,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 21:45:52,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 21:45:52,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 21:45:52,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-02 21:45:52,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 21:45:52,849 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2024-11-02 21:45:52,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:45:52,850 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 21:45:52,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-02 21:45:52,850 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 21:45:52,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 21:45:52,852 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 21:45:52,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-02 21:45:53,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:45:53,055 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-02 21:45:53,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 21:45:53,221 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 21:45:53,230 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-02 21:45:53,230 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-02 21:45:53,230 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-02 21:45:53,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-02 21:45:53,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-02 21:45:53,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-02 21:45:53,234 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-02 21:45:53,234 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-02 21:45:53,235 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-02 21:45:53,235 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-02 21:45:53,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:45:53 BoogieIcfgContainer [2024-11-02 21:45:53,240 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 21:45:53,240 INFO L158 Benchmark]: Toolchain (without parser) took 3361.31ms. Allocated memory was 197.1MB in the beginning and 331.4MB in the end (delta: 134.2MB). Free memory was 136.8MB in the beginning and 244.1MB in the end (delta: -107.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2024-11-02 21:45:53,241 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 197.1MB. Free memory was 149.2MB in the beginning and 149.1MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-02 21:45:53,241 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.21ms. Allocated memory is still 197.1MB. Free memory was 136.6MB in the beginning and 123.1MB in the end (delta: 13.5MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-02 21:45:53,242 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.23ms. Allocated memory is still 197.1MB. Free memory was 123.1MB in the beginning and 121.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-02 21:45:53,242 INFO L158 Benchmark]: Boogie Preprocessor took 43.30ms. Allocated memory is still 197.1MB. Free memory was 121.4MB in the beginning and 119.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-02 21:45:53,242 INFO L158 Benchmark]: RCFGBuilder took 230.26ms. Allocated memory was 197.1MB in the beginning and 331.4MB in the end (delta: 134.2MB). Free memory was 119.3MB in the beginning and 292.9MB in the end (delta: -173.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2024-11-02 21:45:53,242 INFO L158 Benchmark]: TraceAbstraction took 2853.77ms. Allocated memory is still 331.4MB. Free memory was 292.4MB in the beginning and 244.1MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 8.0GB. [2024-11-02 21:45:53,243 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 197.1MB. Free memory was 149.2MB in the beginning and 149.1MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 205.21ms. Allocated memory is still 197.1MB. Free memory was 136.6MB in the beginning and 123.1MB in the end (delta: 13.5MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.23ms. Allocated memory is still 197.1MB. Free memory was 123.1MB in the beginning and 121.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.30ms. Allocated memory is still 197.1MB. Free memory was 121.4MB in the beginning and 119.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 230.26ms. Allocated memory was 197.1MB in the beginning and 331.4MB in the end (delta: 134.2MB). Free memory was 119.3MB in the beginning and 292.9MB in the end (delta: -173.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2853.77ms. Allocated memory is still 331.4MB. Free memory was 292.4MB in the beginning and 244.1MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 245 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 156 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 89 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 222 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=3, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 212 ConstructedInterpolants, 0 QuantifiedInterpolants, 747 SizeOfPredicates, 11 NumberOfNonLiveVariables, 237 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 78/96 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: null - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((0 != cond) && (((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10)))) RESULT: Ultimate proved your program to be correct! [2024-11-02 21:45:53,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...