/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/psyco/psyco_abp_1-3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 05:48:34,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 05:48:34,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 05:48:34,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 05:48:34,874 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 05:48:34,903 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 05:48:34,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 05:48:34,904 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 05:48:34,904 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 05:48:34,904 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 05:48:34,904 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 05:48:34,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 05:48:34,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 05:48:34,905 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 05:48:34,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 05:48:34,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 05:48:34,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 05:48:34,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 05:48:34,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 05:48:34,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 05:48:34,906 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 05:48:34,906 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 05:48:34,906 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 05:48:34,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 05:48:34,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 05:48:34,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 05:48:34,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 05:48:34,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 05:48:34,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 05:48:34,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 05:48:34,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 05:48:34,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 05:48:34,908 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 05:48:34,908 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 05:48:34,908 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 05:48:34,908 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 05:48:34,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 05:48:34,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 05:48:34,909 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 05:48:35,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 05:48:35,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 05:48:35,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 05:48:35,120 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 05:48:35,121 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 05:48:35,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_abp_1-3.c [2022-01-10 05:48:35,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6b68eaf3/07b4eb5557c84589a9c00a96406ee946/FLAG1d74baa87 [2022-01-10 05:48:35,582 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 05:48:35,582 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_abp_1-3.c [2022-01-10 05:48:35,601 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6b68eaf3/07b4eb5557c84589a9c00a96406ee946/FLAG1d74baa87 [2022-01-10 05:48:35,615 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6b68eaf3/07b4eb5557c84589a9c00a96406ee946 [2022-01-10 05:48:35,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 05:48:35,618 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 05:48:35,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 05:48:35,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 05:48:35,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 05:48:35,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:48:35" (1/1) ... [2022-01-10 05:48:35,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc159d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:48:35, skipping insertion in model container [2022-01-10 05:48:35,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:48:35" (1/1) ... [2022-01-10 05:48:35,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 05:48:35,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 05:48:35,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_abp_1-3.c[24720,24733] [2022-01-10 05:48:35,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 05:48:35,933 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 05:48:35,997 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_abp_1-3.c[24720,24733] [2022-01-10 05:48:35,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 05:48:36,010 INFO L208 MainTranslator]: Completed translation [2022-01-10 05:48:36,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:48:36 WrapperNode [2022-01-10 05:48:36,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 05:48:36,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 05:48:36,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 05:48:36,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 05:48:36,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:48:36" (1/1) ... [2022-01-10 05:48:36,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:48:36" (1/1) ... [2022-01-10 05:48:36,084 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 375 [2022-01-10 05:48:36,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 05:48:36,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 05:48:36,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 05:48:36,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 05:48:36,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:48:36" (1/1) ... [2022-01-10 05:48:36,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:48:36" (1/1) ... [2022-01-10 05:48:36,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:48:36" (1/1) ... [2022-01-10 05:48:36,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:48:36" (1/1) ... [2022-01-10 05:48:36,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:48:36" (1/1) ... [2022-01-10 05:48:36,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:48:36" (1/1) ... [2022-01-10 05:48:36,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:48:36" (1/1) ... [2022-01-10 05:48:36,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 05:48:36,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 05:48:36,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 05:48:36,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 05:48:36,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:48:36" (1/1) ... [2022-01-10 05:48:36,206 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 05:48:36,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 05:48:36,231 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 05:48:36,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 05:48:36,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 05:48:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 05:48:36,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 05:48:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 05:48:36,360 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 05:48:36,361 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 05:48:36,915 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 05:48:36,921 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 05:48:36,922 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 05:48:36,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:48:36 BoogieIcfgContainer [2022-01-10 05:48:36,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 05:48:36,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 05:48:36,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 05:48:36,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 05:48:36,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:48:35" (1/3) ... [2022-01-10 05:48:36,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a17ac63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:48:36, skipping insertion in model container [2022-01-10 05:48:36,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:48:36" (2/3) ... [2022-01-10 05:48:36,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a17ac63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:48:36, skipping insertion in model container [2022-01-10 05:48:36,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:48:36" (3/3) ... [2022-01-10 05:48:36,933 INFO L111 eAbstractionObserver]: Analyzing ICFG psyco_abp_1-3.c [2022-01-10 05:48:36,937 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 05:48:36,937 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 05:48:36,973 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 05:48:36,977 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 05:48:36,978 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 05:48:36,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 107 states have (on average 1.9532710280373833) internal successors, (209), 108 states have internal predecessors, (209), 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) [2022-01-10 05:48:36,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 05:48:36,994 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:48:36,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 05:48:36,995 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:48:36,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:48:36,999 INFO L85 PathProgramCache]: Analyzing trace with hash 352571511, now seen corresponding path program 1 times [2022-01-10 05:48:37,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:48:37,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469920182] [2022-01-10 05:48:37,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:48:37,008 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:48:37,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:48:37,010 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 05:48:37,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 05:48:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:48:37,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 05:48:37,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:48:37,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 05:48:37,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 05:48:37,103 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 05:48:37,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469920182] [2022-01-10 05:48:37,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469920182] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 05:48:37,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 05:48:37,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 05:48:37,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195241213] [2022-01-10 05:48:37,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 05:48:37,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 05:48:37,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 05:48:37,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 05:48:37,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 05:48:37,128 INFO L87 Difference]: Start difference. First operand has 109 states, 107 states have (on average 1.9532710280373833) internal successors, (209), 108 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-01-10 05:48:37,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 05:48:37,146 INFO L93 Difference]: Finished difference Result 216 states and 416 transitions. [2022-01-10 05:48:37,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 05:48:37,148 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-01-10 05:48:37,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 05:48:37,154 INFO L225 Difference]: With dead ends: 216 [2022-01-10 05:48:37,154 INFO L226 Difference]: Without dead ends: 95 [2022-01-10 05:48:37,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 05:48:37,160 INFO L933 BasicCegarLoop]: 194 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, 194 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 [2022-01-10 05:48:37,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 05:48:37,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-01-10 05:48:37,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2022-01-10 05:48:37,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.648936170212766) internal successors, (155), 94 states have internal predecessors, (155), 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) [2022-01-10 05:48:37,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 155 transitions. [2022-01-10 05:48:37,190 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 155 transitions. Word has length 9 [2022-01-10 05:48:37,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 05:48:37,191 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 155 transitions. [2022-01-10 05:48:37,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-01-10 05:48:37,191 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 155 transitions. [2022-01-10 05:48:37,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 05:48:37,192 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:48:37,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 05:48:37,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-01-10 05:48:37,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 05:48:37,400 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:48:37,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:48:37,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1422697561, now seen corresponding path program 1 times [2022-01-10 05:48:37,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:48:37,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1047754179] [2022-01-10 05:48:37,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:48:37,402 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:48:37,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:48:37,403 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 05:48:37,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 05:48:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:48:37,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 05:48:37,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:48:37,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 05:48:37,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 05:48:37,473 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 05:48:37,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1047754179] [2022-01-10 05:48:37,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1047754179] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 05:48:37,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 05:48:37,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 05:48:37,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014254314] [2022-01-10 05:48:37,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 05:48:37,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 05:48:37,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 05:48:37,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 05:48:37,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 05:48:37,475 INFO L87 Difference]: Start difference. First operand 95 states and 155 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 05:48:37,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 05:48:37,503 INFO L93 Difference]: Finished difference Result 191 states and 312 transitions. [2022-01-10 05:48:37,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 05:48:37,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-01-10 05:48:37,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 05:48:37,504 INFO L225 Difference]: With dead ends: 191 [2022-01-10 05:48:37,504 INFO L226 Difference]: Without dead ends: 98 [2022-01-10 05:48:37,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 05:48:37,505 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 4 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 05:48:37,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 288 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 05:48:37,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-01-10 05:48:37,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-01-10 05:48:37,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.6288659793814433) internal successors, (158), 97 states have internal predecessors, (158), 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) [2022-01-10 05:48:37,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 158 transitions. [2022-01-10 05:48:37,523 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 158 transitions. Word has length 10 [2022-01-10 05:48:37,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 05:48:37,523 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 158 transitions. [2022-01-10 05:48:37,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 05:48:37,524 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 158 transitions. [2022-01-10 05:48:37,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 05:48:37,524 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:48:37,524 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 05:48:37,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 05:48:37,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 05:48:37,734 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:48:37,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:48:37,735 INFO L85 PathProgramCache]: Analyzing trace with hash 658032730, now seen corresponding path program 1 times [2022-01-10 05:48:37,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:48:37,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155802986] [2022-01-10 05:48:37,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:48:37,738 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:48:37,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:48:37,740 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 05:48:37,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 05:48:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:48:37,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 05:48:37,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:48:37,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 05:48:37,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 05:48:37,874 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 05:48:37,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155802986] [2022-01-10 05:48:37,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1155802986] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 05:48:37,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 05:48:37,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 05:48:37,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400644976] [2022-01-10 05:48:37,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 05:48:37,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 05:48:37,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 05:48:37,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 05:48:37,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 05:48:37,875 INFO L87 Difference]: Start difference. First operand 98 states and 158 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-01-10 05:48:38,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 05:48:38,006 INFO L93 Difference]: Finished difference Result 197 states and 315 transitions. [2022-01-10 05:48:38,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 05:48:38,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-01-10 05:48:38,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 05:48:38,008 INFO L225 Difference]: With dead ends: 197 [2022-01-10 05:48:38,008 INFO L226 Difference]: Without dead ends: 183 [2022-01-10 05:48:38,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 05:48:38,009 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 138 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 05:48:38,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 357 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 05:48:38,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-01-10 05:48:38,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2022-01-10 05:48:38,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 166 states have (on average 1.6325301204819278) internal successors, (271), 166 states have internal predecessors, (271), 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) [2022-01-10 05:48:38,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 271 transitions. [2022-01-10 05:48:38,016 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 271 transitions. Word has length 15 [2022-01-10 05:48:38,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 05:48:38,017 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 271 transitions. [2022-01-10 05:48:38,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-01-10 05:48:38,017 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 271 transitions. [2022-01-10 05:48:38,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 05:48:38,017 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:48:38,017 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 05:48:38,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 05:48:38,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 05:48:38,228 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:48:38,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:48:38,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1675425412, now seen corresponding path program 1 times [2022-01-10 05:48:38,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:48:38,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297093993] [2022-01-10 05:48:38,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:48:38,229 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:48:38,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:48:38,231 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 05:48:38,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 05:48:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:48:38,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 05:48:38,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:48:38,290 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 05:48:38,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 05:48:38,291 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 05:48:38,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297093993] [2022-01-10 05:48:38,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1297093993] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 05:48:38,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 05:48:38,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 05:48:38,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605086085] [2022-01-10 05:48:38,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 05:48:38,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 05:48:38,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 05:48:38,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 05:48:38,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 05:48:38,293 INFO L87 Difference]: Start difference. First operand 167 states and 271 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-01-10 05:48:38,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 05:48:38,315 INFO L93 Difference]: Finished difference Result 283 states and 457 transitions. [2022-01-10 05:48:38,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 05:48:38,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-01-10 05:48:38,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 05:48:38,316 INFO L225 Difference]: With dead ends: 283 [2022-01-10 05:48:38,316 INFO L226 Difference]: Without dead ends: 119 [2022-01-10 05:48:38,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 05:48:38,318 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 28 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 05:48:38,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 265 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 05:48:38,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-01-10 05:48:38,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2022-01-10 05:48:38,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 1.5862068965517242) internal successors, (184), 116 states have internal predecessors, (184), 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) [2022-01-10 05:48:38,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 184 transitions. [2022-01-10 05:48:38,323 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 184 transitions. Word has length 16 [2022-01-10 05:48:38,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 05:48:38,323 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 184 transitions. [2022-01-10 05:48:38,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-01-10 05:48:38,323 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 184 transitions. [2022-01-10 05:48:38,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 05:48:38,324 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:48:38,324 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 05:48:38,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 05:48:38,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 05:48:38,531 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:48:38,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:48:38,532 INFO L85 PathProgramCache]: Analyzing trace with hash -843118083, now seen corresponding path program 1 times [2022-01-10 05:48:38,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:48:38,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856230441] [2022-01-10 05:48:38,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:48:38,532 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:48:38,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:48:38,533 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 05:48:38,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 05:48:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:48:38,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 05:48:38,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:48:38,614 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 05:48:38,614 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 05:48:38,614 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 05:48:38,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856230441] [2022-01-10 05:48:38,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1856230441] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 05:48:38,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 05:48:38,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 05:48:38,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130388943] [2022-01-10 05:48:38,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 05:48:38,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 05:48:38,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 05:48:38,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 05:48:38,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 05:48:38,625 INFO L87 Difference]: Start difference. First operand 117 states and 184 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-01-10 05:48:38,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 05:48:38,646 INFO L93 Difference]: Finished difference Result 238 states and 375 transitions. [2022-01-10 05:48:38,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 05:48:38,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-01-10 05:48:38,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 05:48:38,647 INFO L225 Difference]: With dead ends: 238 [2022-01-10 05:48:38,648 INFO L226 Difference]: Without dead ends: 124 [2022-01-10 05:48:38,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 05:48:38,649 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 30 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 05:48:38,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 264 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 05:48:38,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-01-10 05:48:38,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2022-01-10 05:48:38,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 121 states have (on average 1.56198347107438) internal successors, (189), 121 states have internal predecessors, (189), 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) [2022-01-10 05:48:38,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 189 transitions. [2022-01-10 05:48:38,656 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 189 transitions. Word has length 21 [2022-01-10 05:48:38,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 05:48:38,656 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 189 transitions. [2022-01-10 05:48:38,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-01-10 05:48:38,656 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 189 transitions. [2022-01-10 05:48:38,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-10 05:48:38,657 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:48:38,657 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 05:48:38,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-01-10 05:48:38,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 05:48:38,864 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:48:38,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:48:38,864 INFO L85 PathProgramCache]: Analyzing trace with hash -671640130, now seen corresponding path program 1 times [2022-01-10 05:48:38,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:48:38,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841701831] [2022-01-10 05:48:38,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:48:38,865 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:48:38,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:48:38,866 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 05:48:38,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 05:48:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:48:38,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 05:48:38,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:48:38,950 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 05:48:38,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 05:48:38,996 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 05:48:38,997 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 05:48:38,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841701831] [2022-01-10 05:48:38,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [841701831] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 05:48:38,997 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 05:48:38,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-01-10 05:48:38,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492848465] [2022-01-10 05:48:38,997 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 05:48:38,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 05:48:38,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 05:48:39,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 05:48:39,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 05:48:39,023 INFO L87 Difference]: Start difference. First operand 122 states and 189 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2022-01-10 05:48:39,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 05:48:39,102 INFO L93 Difference]: Finished difference Result 227 states and 353 transitions. [2022-01-10 05:48:39,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 05:48:39,103 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-01-10 05:48:39,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 05:48:39,104 INFO L225 Difference]: With dead ends: 227 [2022-01-10 05:48:39,104 INFO L226 Difference]: Without dead ends: 209 [2022-01-10 05:48:39,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 05:48:39,105 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 403 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 05:48:39,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 647 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 05:48:39,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-01-10 05:48:39,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 202. [2022-01-10 05:48:39,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 1.5572139303482586) internal successors, (313), 201 states have internal predecessors, (313), 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) [2022-01-10 05:48:39,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 313 transitions. [2022-01-10 05:48:39,111 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 313 transitions. Word has length 23 [2022-01-10 05:48:39,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 05:48:39,111 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 313 transitions. [2022-01-10 05:48:39,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2022-01-10 05:48:39,111 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 313 transitions. [2022-01-10 05:48:39,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-10 05:48:39,112 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:48:39,112 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 05:48:39,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-01-10 05:48:39,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 05:48:39,321 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:48:39,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:48:39,321 INFO L85 PathProgramCache]: Analyzing trace with hash 665435966, now seen corresponding path program 1 times [2022-01-10 05:48:39,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:48:39,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364190225] [2022-01-10 05:48:39,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:48:39,322 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:48:39,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:48:39,323 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 05:48:39,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 05:48:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:48:39,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 05:48:39,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:48:39,439 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 05:48:39,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 05:48:39,527 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 05:48:39,528 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 05:48:39,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364190225] [2022-01-10 05:48:39,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364190225] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 05:48:39,528 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 05:48:39,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-01-10 05:48:39,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962829680] [2022-01-10 05:48:39,528 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 05:48:39,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 05:48:39,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 05:48:39,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 05:48:39,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 05:48:39,529 INFO L87 Difference]: Start difference. First operand 202 states and 313 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2022-01-10 05:48:39,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 05:48:39,594 INFO L93 Difference]: Finished difference Result 227 states and 344 transitions. [2022-01-10 05:48:39,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 05:48:39,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-01-10 05:48:39,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 05:48:39,595 INFO L225 Difference]: With dead ends: 227 [2022-01-10 05:48:39,595 INFO L226 Difference]: Without dead ends: 224 [2022-01-10 05:48:39,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 05:48:39,596 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 36 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 05:48:39,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 684 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 05:48:39,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-01-10 05:48:39,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 220. [2022-01-10 05:48:39,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 219 states have (on average 1.54337899543379) internal successors, (338), 219 states have internal predecessors, (338), 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) [2022-01-10 05:48:39,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 338 transitions. [2022-01-10 05:48:39,601 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 338 transitions. Word has length 24 [2022-01-10 05:48:39,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 05:48:39,602 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 338 transitions. [2022-01-10 05:48:39,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2022-01-10 05:48:39,602 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 338 transitions. [2022-01-10 05:48:39,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-10 05:48:39,602 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:48:39,602 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 05:48:39,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-01-10 05:48:39,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 05:48:39,810 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:48:39,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:48:39,810 INFO L85 PathProgramCache]: Analyzing trace with hash 338445793, now seen corresponding path program 1 times [2022-01-10 05:48:39,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:48:39,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231855463] [2022-01-10 05:48:39,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:48:39,810 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:48:39,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:48:39,811 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 05:48:39,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-01-10 05:48:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:48:39,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 05:48:39,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:48:39,892 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-10 05:48:39,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 05:48:39,892 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 05:48:39,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231855463] [2022-01-10 05:48:39,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231855463] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 05:48:39,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 05:48:39,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 05:48:39,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677393131] [2022-01-10 05:48:39,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 05:48:39,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 05:48:39,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 05:48:39,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 05:48:39,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 05:48:39,894 INFO L87 Difference]: Start difference. First operand 220 states and 338 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2022-01-10 05:48:39,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 05:48:39,918 INFO L93 Difference]: Finished difference Result 451 states and 696 transitions. [2022-01-10 05:48:39,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 05:48:39,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-01-10 05:48:39,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 05:48:39,919 INFO L225 Difference]: With dead ends: 451 [2022-01-10 05:48:39,919 INFO L226 Difference]: Without dead ends: 234 [2022-01-10 05:48:39,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 05:48:39,920 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 31 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 05:48:39,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 265 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 05:48:39,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-01-10 05:48:39,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 232. [2022-01-10 05:48:39,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 231 states have (on average 1.5151515151515151) internal successors, (350), 231 states have internal predecessors, (350), 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) [2022-01-10 05:48:39,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 350 transitions. [2022-01-10 05:48:39,925 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 350 transitions. Word has length 30 [2022-01-10 05:48:39,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 05:48:39,925 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 350 transitions. [2022-01-10 05:48:39,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2022-01-10 05:48:39,925 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 350 transitions. [2022-01-10 05:48:39,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 05:48:39,926 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:48:39,926 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 05:48:39,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-01-10 05:48:40,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 05:48:40,149 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:48:40,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:48:40,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1822717533, now seen corresponding path program 1 times [2022-01-10 05:48:40,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:48:40,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162178531] [2022-01-10 05:48:40,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:48:40,150 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:48:40,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:48:40,151 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 05:48:40,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-01-10 05:48:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:48:40,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 05:48:40,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:48:40,259 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-10 05:48:40,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 05:48:40,434 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-10 05:48:40,434 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 05:48:40,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162178531] [2022-01-10 05:48:40,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162178531] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 05:48:40,434 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 05:48:40,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-01-10 05:48:40,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133090557] [2022-01-10 05:48:40,434 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 05:48:40,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 05:48:40,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 05:48:40,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 05:48:40,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 05:48:40,435 INFO L87 Difference]: Start difference. First operand 232 states and 350 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2022-01-10 05:48:40,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 05:48:40,553 INFO L93 Difference]: Finished difference Result 260 states and 385 transitions. [2022-01-10 05:48:40,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 05:48:40,553 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-01-10 05:48:40,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 05:48:40,554 INFO L225 Difference]: With dead ends: 260 [2022-01-10 05:48:40,554 INFO L226 Difference]: Without dead ends: 257 [2022-01-10 05:48:40,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-10 05:48:40,555 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 71 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 05:48:40,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 628 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 114 Invalid, 0 Unknown, 51 Unchecked, 0.1s Time] [2022-01-10 05:48:40,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-01-10 05:48:40,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 250. [2022-01-10 05:48:40,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 249 states have (on average 1.5060240963855422) internal successors, (375), 249 states have internal predecessors, (375), 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) [2022-01-10 05:48:40,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 375 transitions. [2022-01-10 05:48:40,561 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 375 transitions. Word has length 33 [2022-01-10 05:48:40,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 05:48:40,562 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 375 transitions. [2022-01-10 05:48:40,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2022-01-10 05:48:40,562 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 375 transitions. [2022-01-10 05:48:40,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-10 05:48:40,563 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:48:40,563 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 05:48:40,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-01-10 05:48:40,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 05:48:40,770 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:48:40,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:48:40,771 INFO L85 PathProgramCache]: Analyzing trace with hash 2082949584, now seen corresponding path program 1 times [2022-01-10 05:48:40,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:48:40,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065231170] [2022-01-10 05:48:40,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:48:40,771 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:48:40,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:48:40,773 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 05:48:40,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-01-10 05:48:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:48:40,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 05:48:40,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:48:40,999 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 05:48:40,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 05:48:41,296 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 05:48:41,296 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 05:48:41,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065231170] [2022-01-10 05:48:41,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065231170] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 05:48:41,297 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 05:48:41,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-01-10 05:48:41,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018209625] [2022-01-10 05:48:41,297 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 05:48:41,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 05:48:41,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 05:48:41,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 05:48:41,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-10 05:48:41,298 INFO L87 Difference]: Start difference. First operand 250 states and 375 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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) [2022-01-10 05:48:41,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 05:48:41,346 INFO L93 Difference]: Finished difference Result 253 states and 378 transitions. [2022-01-10 05:48:41,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 05:48:41,346 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-01-10 05:48:41,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 05:48:41,347 INFO L225 Difference]: With dead ends: 253 [2022-01-10 05:48:41,347 INFO L226 Difference]: Without dead ends: 251 [2022-01-10 05:48:41,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-10 05:48:41,348 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 77 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 05:48:41,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 691 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 77 Unchecked, 0.0s Time] [2022-01-10 05:48:41,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-01-10 05:48:41,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2022-01-10 05:48:41,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 250 states have (on average 1.504) internal successors, (376), 250 states have internal predecessors, (376), 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) [2022-01-10 05:48:41,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 376 transitions. [2022-01-10 05:48:41,354 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 376 transitions. Word has length 36 [2022-01-10 05:48:41,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 05:48:41,354 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 376 transitions. [2022-01-10 05:48:41,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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) [2022-01-10 05:48:41,354 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 376 transitions. [2022-01-10 05:48:41,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-10 05:48:41,355 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:48:41,355 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 05:48:41,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-01-10 05:48:41,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 05:48:41,562 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:48:41,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:48:41,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1641538829, now seen corresponding path program 1 times [2022-01-10 05:48:41,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:48:41,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809351106] [2022-01-10 05:48:41,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:48:41,563 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:48:41,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:48:41,564 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 05:48:41,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-01-10 05:48:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:48:41,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 05:48:41,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:48:41,664 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-10 05:48:41,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 05:48:41,665 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 05:48:41,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [809351106] [2022-01-10 05:48:41,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [809351106] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 05:48:41,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 05:48:41,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 05:48:41,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429013145] [2022-01-10 05:48:41,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 05:48:41,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 05:48:41,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 05:48:41,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 05:48:41,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 05:48:41,666 INFO L87 Difference]: Start difference. First operand 251 states and 376 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-01-10 05:48:41,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 05:48:41,686 INFO L93 Difference]: Finished difference Result 390 states and 577 transitions. [2022-01-10 05:48:41,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 05:48:41,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-01-10 05:48:41,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 05:48:41,687 INFO L225 Difference]: With dead ends: 390 [2022-01-10 05:48:41,687 INFO L226 Difference]: Without dead ends: 142 [2022-01-10 05:48:41,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 05:48:41,688 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 28 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 05:48:41,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 183 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 05:48:41,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-01-10 05:48:41,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 140. [2022-01-10 05:48:41,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 1.4172661870503598) internal successors, (197), 139 states have internal predecessors, (197), 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) [2022-01-10 05:48:41,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 197 transitions. [2022-01-10 05:48:41,691 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 197 transitions. Word has length 42 [2022-01-10 05:48:41,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 05:48:41,692 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 197 transitions. [2022-01-10 05:48:41,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-01-10 05:48:41,692 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 197 transitions. [2022-01-10 05:48:41,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 05:48:41,692 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:48:41,692 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 05:48:41,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-01-10 05:48:41,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 05:48:41,899 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:48:41,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:48:41,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1014660280, now seen corresponding path program 1 times [2022-01-10 05:48:41,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:48:41,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896305230] [2022-01-10 05:48:41,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:48:41,900 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:48:41,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:48:41,901 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 05:48:41,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-01-10 05:48:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:48:41,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 05:48:41,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:48:42,034 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-10 05:48:42,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 05:48:42,115 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-10 05:48:42,116 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 05:48:42,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896305230] [2022-01-10 05:48:42,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896305230] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 05:48:42,116 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 05:48:42,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2022-01-10 05:48:42,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202492486] [2022-01-10 05:48:42,116 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 05:48:42,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 05:48:42,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 05:48:42,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 05:48:42,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-10 05:48:42,117 INFO L87 Difference]: Start difference. First operand 140 states and 197 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 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) [2022-01-10 05:48:42,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 05:48:42,162 INFO L93 Difference]: Finished difference Result 184 states and 256 transitions. [2022-01-10 05:48:42,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 05:48:42,163 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-01-10 05:48:42,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 05:48:42,163 INFO L225 Difference]: With dead ends: 184 [2022-01-10 05:48:42,163 INFO L226 Difference]: Without dead ends: 176 [2022-01-10 05:48:42,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 85 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-10 05:48:42,164 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 196 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 05:48:42,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 502 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 05:48:42,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-01-10 05:48:42,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 136. [2022-01-10 05:48:42,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.4) internal successors, (189), 135 states have internal predecessors, (189), 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) [2022-01-10 05:48:42,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 189 transitions. [2022-01-10 05:48:42,168 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 189 transitions. Word has length 47 [2022-01-10 05:48:42,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 05:48:42,168 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 189 transitions. [2022-01-10 05:48:42,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 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) [2022-01-10 05:48:42,168 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 189 transitions. [2022-01-10 05:48:42,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 05:48:42,168 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:48:42,169 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 05:48:42,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-01-10 05:48:42,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 05:48:42,375 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:48:42,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:48:42,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1003777494, now seen corresponding path program 1 times [2022-01-10 05:48:42,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:48:42,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506348969] [2022-01-10 05:48:42,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:48:42,376 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:48:42,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:48:42,378 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 05:48:42,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-01-10 05:48:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:48:42,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 05:48:42,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:48:42,656 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 05:48:42,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 05:48:42,891 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 05:48:42,891 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 05:48:42,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506348969] [2022-01-10 05:48:42,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1506348969] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 05:48:42,892 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 05:48:42,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-01-10 05:48:42,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288942994] [2022-01-10 05:48:42,892 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 05:48:42,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 05:48:42,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 05:48:42,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 05:48:42,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-10 05:48:42,893 INFO L87 Difference]: Start difference. First operand 136 states and 189 transitions. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2022-01-10 05:48:42,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 05:48:42,955 INFO L93 Difference]: Finished difference Result 160 states and 219 transitions. [2022-01-10 05:48:42,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 05:48:42,956 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-01-10 05:48:42,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 05:48:42,957 INFO L225 Difference]: With dead ends: 160 [2022-01-10 05:48:42,957 INFO L226 Difference]: Without dead ends: 158 [2022-01-10 05:48:42,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-01-10 05:48:42,958 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 162 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 05:48:42,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 684 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 05:48:42,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-01-10 05:48:42,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 136. [2022-01-10 05:48:42,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.385185185185185) internal successors, (187), 135 states have internal predecessors, (187), 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) [2022-01-10 05:48:42,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 187 transitions. [2022-01-10 05:48:42,963 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 187 transitions. Word has length 51 [2022-01-10 05:48:42,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 05:48:42,963 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 187 transitions. [2022-01-10 05:48:42,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2022-01-10 05:48:42,963 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 187 transitions. [2022-01-10 05:48:42,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 05:48:42,963 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:48:42,963 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 05:48:42,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-01-10 05:48:43,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 05:48:43,171 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:48:43,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:48:43,171 INFO L85 PathProgramCache]: Analyzing trace with hash 751253453, now seen corresponding path program 1 times [2022-01-10 05:48:43,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:48:43,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825829823] [2022-01-10 05:48:43,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:48:43,172 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:48:43,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:48:43,173 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 05:48:43,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-01-10 05:48:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:48:43,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-10 05:48:43,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:48:43,469 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 05:48:43,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 05:48:44,240 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 35 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-10 05:48:44,240 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 05:48:44,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825829823] [2022-01-10 05:48:44,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825829823] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 05:48:44,240 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 05:48:44,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2022-01-10 05:48:44,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614578858] [2022-01-10 05:48:44,240 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 05:48:44,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 05:48:44,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 05:48:44,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 05:48:44,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-01-10 05:48:44,241 INFO L87 Difference]: Start difference. First operand 136 states and 187 transitions. Second operand has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 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) [2022-01-10 05:48:44,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 05:48:44,380 INFO L93 Difference]: Finished difference Result 177 states and 242 transitions. [2022-01-10 05:48:44,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 05:48:44,380 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-01-10 05:48:44,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 05:48:44,381 INFO L225 Difference]: With dead ends: 177 [2022-01-10 05:48:44,381 INFO L226 Difference]: Without dead ends: 175 [2022-01-10 05:48:44,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-01-10 05:48:44,381 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 191 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 05:48:44,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 978 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 94 Invalid, 0 Unknown, 40 Unchecked, 0.1s Time] [2022-01-10 05:48:44,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-01-10 05:48:44,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 136. [2022-01-10 05:48:44,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.3777777777777778) internal successors, (186), 135 states have internal predecessors, (186), 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) [2022-01-10 05:48:44,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 186 transitions. [2022-01-10 05:48:44,385 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 186 transitions. Word has length 57 [2022-01-10 05:48:44,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 05:48:44,385 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 186 transitions. [2022-01-10 05:48:44,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 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) [2022-01-10 05:48:44,385 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 186 transitions. [2022-01-10 05:48:44,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-10 05:48:44,386 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:48:44,386 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 05:48:44,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-01-10 05:48:44,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 05:48:44,593 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:48:44,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:48:44,593 INFO L85 PathProgramCache]: Analyzing trace with hash -2057891779, now seen corresponding path program 1 times [2022-01-10 05:48:44,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:48:44,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507788735] [2022-01-10 05:48:44,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:48:44,594 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:48:44,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:48:44,600 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 05:48:44,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-01-10 05:48:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:48:44,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-10 05:48:44,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:48:45,012 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 05:48:45,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 05:48:45,638 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 72 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-10 05:48:45,638 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 05:48:45,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507788735] [2022-01-10 05:48:45,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507788735] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 05:48:45,638 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 05:48:45,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 13 [2022-01-10 05:48:45,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113500282] [2022-01-10 05:48:45,638 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 05:48:45,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 05:48:45,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 05:48:45,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 05:48:45,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-01-10 05:48:45,640 INFO L87 Difference]: Start difference. First operand 136 states and 186 transitions. Second operand has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 13 states have internal predecessors, (122), 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) [2022-01-10 05:48:45,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 05:48:45,674 INFO L93 Difference]: Finished difference Result 209 states and 288 transitions. [2022-01-10 05:48:45,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 05:48:45,674 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 13 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-10 05:48:45,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 05:48:45,674 INFO L225 Difference]: With dead ends: 209 [2022-01-10 05:48:45,675 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 05:48:45,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 142 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-01-10 05:48:45,677 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 222 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 05:48:45,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 1262 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 32 Unchecked, 0.0s Time] [2022-01-10 05:48:45,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 05:48:45,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 05:48:45,678 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) [2022-01-10 05:48:45,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 05:48:45,678 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2022-01-10 05:48:45,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 05:48:45,678 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 05:48:45,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 13 states have internal predecessors, (122), 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) [2022-01-10 05:48:45,678 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 05:48:45,678 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 05:48:45,680 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 05:48:45,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-01-10 05:48:45,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 05:48:45,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 05:48:46,165 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 434) no Hoare annotation was computed. [2022-01-10 05:48:46,165 INFO L858 garLoopResultBuilder]: For program point L300(lines 300 302) no Hoare annotation was computed. [2022-01-10 05:48:46,165 INFO L858 garLoopResultBuilder]: For program point L168(lines 168 170) no Hoare annotation was computed. [2022-01-10 05:48:46,165 INFO L858 garLoopResultBuilder]: For program point L532(lines 532 534) no Hoare annotation was computed. [2022-01-10 05:48:46,165 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 402) no Hoare annotation was computed. [2022-01-10 05:48:46,165 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 270) no Hoare annotation was computed. [2022-01-10 05:48:46,166 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 502) no Hoare annotation was computed. [2022-01-10 05:48:46,166 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 370) no Hoare annotation was computed. [2022-01-10 05:48:46,166 INFO L858 garLoopResultBuilder]: For program point L468(lines 468 470) no Hoare annotation was computed. [2022-01-10 05:48:46,166 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 60) no Hoare annotation was computed. [2022-01-10 05:48:46,166 INFO L858 garLoopResultBuilder]: For program point L42(lines 42 57) no Hoare annotation was computed. [2022-01-10 05:48:46,166 INFO L858 garLoopResultBuilder]: For program point L142(lines 142 157) no Hoare annotation was computed. [2022-01-10 05:48:46,166 INFO L858 garLoopResultBuilder]: For program point L242(lines 242 257) no Hoare annotation was computed. [2022-01-10 05:48:46,166 INFO L858 garLoopResultBuilder]: For program point L110(lines 110 125) no Hoare annotation was computed. [2022-01-10 05:48:46,166 INFO L858 garLoopResultBuilder]: For program point L44(lines 44 55) no Hoare annotation was computed. [2022-01-10 05:48:46,166 INFO L858 garLoopResultBuilder]: For program point L342(lines 342 357) no Hoare annotation was computed. [2022-01-10 05:48:46,166 INFO L858 garLoopResultBuilder]: For program point L210(lines 210 225) no Hoare annotation was computed. [2022-01-10 05:48:46,166 INFO L858 garLoopResultBuilder]: For program point L144(lines 144 155) no Hoare annotation was computed. [2022-01-10 05:48:46,166 INFO L858 garLoopResultBuilder]: For program point L78(lines 78 93) no Hoare annotation was computed. [2022-01-10 05:48:46,166 INFO L858 garLoopResultBuilder]: For program point L442(lines 442 457) no Hoare annotation was computed. [2022-01-10 05:48:46,166 INFO L858 garLoopResultBuilder]: For program point L310(lines 310 325) no Hoare annotation was computed. [2022-01-10 05:48:46,166 INFO L858 garLoopResultBuilder]: For program point L244(lines 244 255) no Hoare annotation was computed. [2022-01-10 05:48:46,166 INFO L858 garLoopResultBuilder]: For program point L178(lines 178 193) no Hoare annotation was computed. [2022-01-10 05:48:46,166 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 123) no Hoare annotation was computed. [2022-01-10 05:48:46,167 INFO L858 garLoopResultBuilder]: For program point L542(lines 542 557) no Hoare annotation was computed. [2022-01-10 05:48:46,167 INFO L858 garLoopResultBuilder]: For program point L410(lines 410 425) no Hoare annotation was computed. [2022-01-10 05:48:46,167 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 355) no Hoare annotation was computed. [2022-01-10 05:48:46,167 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 293) no Hoare annotation was computed. [2022-01-10 05:48:46,167 INFO L858 garLoopResultBuilder]: For program point L212(lines 212 223) no Hoare annotation was computed. [2022-01-10 05:48:46,167 INFO L858 garLoopResultBuilder]: For program point L80(lines 80 91) no Hoare annotation was computed. [2022-01-10 05:48:46,167 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 525) no Hoare annotation was computed. [2022-01-10 05:48:46,167 INFO L858 garLoopResultBuilder]: For program point L444(lines 444 455) no Hoare annotation was computed. [2022-01-10 05:48:46,167 INFO L858 garLoopResultBuilder]: For program point L378(lines 378 393) no Hoare annotation was computed. [2022-01-10 05:48:46,167 INFO L858 garLoopResultBuilder]: For program point L312(lines 312 323) no Hoare annotation was computed. [2022-01-10 05:48:46,167 INFO L858 garLoopResultBuilder]: For program point L180(lines 180 191) no Hoare annotation was computed. [2022-01-10 05:48:46,167 INFO L858 garLoopResultBuilder]: For program point L48(lines 48 50) no Hoare annotation was computed. [2022-01-10 05:48:46,167 INFO L858 garLoopResultBuilder]: For program point L544(lines 544 555) no Hoare annotation was computed. [2022-01-10 05:48:46,167 INFO L858 garLoopResultBuilder]: For program point L478(lines 478 493) no Hoare annotation was computed. [2022-01-10 05:48:46,167 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2022-01-10 05:48:46,167 INFO L858 garLoopResultBuilder]: For program point L280(lines 280 291) no Hoare annotation was computed. [2022-01-10 05:48:46,167 INFO L858 garLoopResultBuilder]: For program point L148(lines 148 150) no Hoare annotation was computed. [2022-01-10 05:48:46,168 INFO L861 garLoopResultBuilder]: At program point L16(lines 16 568) the Hoare annotation is: true [2022-01-10 05:48:46,168 INFO L858 garLoopResultBuilder]: For program point L512(lines 512 523) no Hoare annotation was computed. [2022-01-10 05:48:46,168 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 391) no Hoare annotation was computed. [2022-01-10 05:48:46,168 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 250) no Hoare annotation was computed. [2022-01-10 05:48:46,168 INFO L858 garLoopResultBuilder]: For program point L116(lines 116 118) no Hoare annotation was computed. [2022-01-10 05:48:46,168 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 491) no Hoare annotation was computed. [2022-01-10 05:48:46,168 INFO L858 garLoopResultBuilder]: For program point L348(lines 348 350) no Hoare annotation was computed. [2022-01-10 05:48:46,168 INFO L858 garLoopResultBuilder]: For program point L216(lines 216 218) no Hoare annotation was computed. [2022-01-10 05:48:46,168 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 86) no Hoare annotation was computed. [2022-01-10 05:48:46,168 INFO L858 garLoopResultBuilder]: For program point L448(lines 448 450) no Hoare annotation was computed. [2022-01-10 05:48:46,168 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 318) no Hoare annotation was computed. [2022-01-10 05:48:46,168 INFO L858 garLoopResultBuilder]: For program point L184(lines 184 186) no Hoare annotation was computed. [2022-01-10 05:48:46,168 INFO L858 garLoopResultBuilder]: For program point L548(lines 548 550) no Hoare annotation was computed. [2022-01-10 05:48:46,168 INFO L858 garLoopResultBuilder]: For program point L416(lines 416 418) no Hoare annotation was computed. [2022-01-10 05:48:46,168 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 05:48:46,168 INFO L858 garLoopResultBuilder]: For program point L284(lines 284 286) no Hoare annotation was computed. [2022-01-10 05:48:46,168 INFO L854 garLoopResultBuilder]: At program point L549(lines 16 568) the Hoare annotation is: false [2022-01-10 05:48:46,169 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 518) no Hoare annotation was computed. [2022-01-10 05:48:46,169 INFO L858 garLoopResultBuilder]: For program point L384(lines 384 386) no Hoare annotation was computed. [2022-01-10 05:48:46,169 INFO L858 garLoopResultBuilder]: For program point L484(lines 484 486) no Hoare annotation was computed. [2022-01-10 05:48:46,169 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 05:48:46,169 INFO L854 garLoopResultBuilder]: At program point L26-2(lines 26 563) the Hoare annotation is: (and (= |ULTIMATE.start_main_~this_buffer_empty~0#1| (_ bv0 32)) (= |ULTIMATE.start_main_~this_expect~0#1| (_ bv0 32)) (= |ULTIMATE.start_main_~q~0#1| (_ bv0 32))) [2022-01-10 05:48:46,169 INFO L858 garLoopResultBuilder]: For program point L26-3(lines 26 563) no Hoare annotation was computed. [2022-01-10 05:48:46,169 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 141) no Hoare annotation was computed. [2022-01-10 05:48:46,169 INFO L858 garLoopResultBuilder]: For program point L226(lines 226 241) no Hoare annotation was computed. [2022-01-10 05:48:46,169 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 109) no Hoare annotation was computed. [2022-01-10 05:48:46,169 INFO L858 garLoopResultBuilder]: For program point L61(lines 61 160) no Hoare annotation was computed. [2022-01-10 05:48:46,169 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 05:48:46,169 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 341) no Hoare annotation was computed. [2022-01-10 05:48:46,169 INFO L858 garLoopResultBuilder]: For program point L194(lines 194 209) no Hoare annotation was computed. [2022-01-10 05:48:46,169 INFO L858 garLoopResultBuilder]: For program point L161(lines 161 260) no Hoare annotation was computed. [2022-01-10 05:48:46,169 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 139) no Hoare annotation was computed. [2022-01-10 05:48:46,169 INFO L858 garLoopResultBuilder]: For program point L62(lines 62 77) no Hoare annotation was computed. [2022-01-10 05:48:46,169 INFO L858 garLoopResultBuilder]: For program point L426(lines 426 441) no Hoare annotation was computed. [2022-01-10 05:48:46,169 INFO L858 garLoopResultBuilder]: For program point L294(lines 294 309) no Hoare annotation was computed. [2022-01-10 05:48:46,170 INFO L858 garLoopResultBuilder]: For program point L261(lines 261 360) no Hoare annotation was computed. [2022-01-10 05:48:46,170 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 239) no Hoare annotation was computed. [2022-01-10 05:48:46,170 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 177) no Hoare annotation was computed. [2022-01-10 05:48:46,170 INFO L858 garLoopResultBuilder]: For program point L96(lines 96 107) no Hoare annotation was computed. [2022-01-10 05:48:46,170 INFO L854 garLoopResultBuilder]: At program point L559(lines 26 563) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~this_buffer_empty~0#1| (_ bv0 32))) (.cse3 (not (= (_ bv0 32) (bvurem (bvadd |ULTIMATE.start_main_~this_expect~0#1| (_ bv4294967295 32)) (_ bv2 32)))))) (or (and .cse0 (= |ULTIMATE.start_main_~this_expect~0#1| (_ bv0 32)) (= |ULTIMATE.start_main_~q~0#1| (_ bv0 32))) (and (forall ((|ULTIMATE.start_main_~P1~0#1| (_ BitVec 32))) (let ((.cse1 (bvsrem |ULTIMATE.start_main_~P1~0#1| (_ bv2 32)))) (or (not (= .cse1 (_ bv0 32))) (and (= .cse1 (bvurem (bvadd |ULTIMATE.start_main_~this_expect~0#1| (_ bv1 32)) (_ bv2 32))) (= (_ bv0 32) (bvneg (bvadd (bvneg (bvadd (bvneg |ULTIMATE.start_main_~this_buffer_empty~0#1|) (_ bv1 32))) (_ bv1 32)))))))) (= |ULTIMATE.start_main_~q~0#1| (_ bv3 32))) (and (= (_ bv4 32) |ULTIMATE.start_main_~q~0#1|) (forall ((|ULTIMATE.start_main_~P1~0#1| (_ BitVec 32))) (let ((.cse2 (bvsrem |ULTIMATE.start_main_~P1~0#1| (_ bv2 32)))) (or (not (= .cse2 (_ bv0 32))) (and (= .cse2 (bvurem (bvadd |ULTIMATE.start_main_~this_expect~0#1| (_ bv1 32)) (_ bv2 32))) (= (bvneg (bvadd (bvneg |ULTIMATE.start_main_~this_buffer_empty~0#1|) (_ bv1 32))) (_ bv0 32))))))) (and .cse0 (= |ULTIMATE.start_main_~q~0#1| (_ bv5 32)) .cse3) (and .cse3 (= |ULTIMATE.start_main_~this_buffer_empty~0#1| (_ bv1 32)) (= |ULTIMATE.start_main_~q~0#1| (_ bv1 32))))) [2022-01-10 05:48:46,170 INFO L858 garLoopResultBuilder]: For program point L526(lines 526 541) no Hoare annotation was computed. [2022-01-10 05:48:46,170 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 409) no Hoare annotation was computed. [2022-01-10 05:48:46,170 INFO L858 garLoopResultBuilder]: For program point L361(lines 361 460) no Hoare annotation was computed. [2022-01-10 05:48:46,170 INFO L858 garLoopResultBuilder]: For program point L328(lines 328 339) no Hoare annotation was computed. [2022-01-10 05:48:46,170 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 277) no Hoare annotation was computed. [2022-01-10 05:48:46,171 INFO L858 garLoopResultBuilder]: For program point L196(lines 196 207) no Hoare annotation was computed. [2022-01-10 05:48:46,171 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 75) no Hoare annotation was computed. [2022-01-10 05:48:46,171 INFO L858 garLoopResultBuilder]: For program point L494(lines 494 509) no Hoare annotation was computed. [2022-01-10 05:48:46,171 INFO L858 garLoopResultBuilder]: For program point L461(lines 461 560) no Hoare annotation was computed. [2022-01-10 05:48:46,171 INFO L858 garLoopResultBuilder]: For program point L428(lines 428 439) no Hoare annotation was computed. [2022-01-10 05:48:46,171 INFO L858 garLoopResultBuilder]: For program point L362(lines 362 377) no Hoare annotation was computed. [2022-01-10 05:48:46,171 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 307) no Hoare annotation was computed. [2022-01-10 05:48:46,171 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 175) no Hoare annotation was computed. [2022-01-10 05:48:46,171 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 05:48:46,171 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 567) no Hoare annotation was computed. [2022-01-10 05:48:46,171 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 539) no Hoare annotation was computed. [2022-01-10 05:48:46,171 INFO L858 garLoopResultBuilder]: For program point L462(lines 462 477) no Hoare annotation was computed. [2022-01-10 05:48:46,172 INFO L858 garLoopResultBuilder]: For program point L396(lines 396 407) no Hoare annotation was computed. [2022-01-10 05:48:46,172 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 275) no Hoare annotation was computed. [2022-01-10 05:48:46,172 INFO L858 garLoopResultBuilder]: For program point L132(lines 132 134) no Hoare annotation was computed. [2022-01-10 05:48:46,172 INFO L858 garLoopResultBuilder]: For program point L496(lines 496 507) no Hoare annotation was computed. [2022-01-10 05:48:46,172 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 375) no Hoare annotation was computed. [2022-01-10 05:48:46,172 INFO L858 garLoopResultBuilder]: For program point L232(lines 232 234) no Hoare annotation was computed. [2022-01-10 05:48:46,172 INFO L858 garLoopResultBuilder]: For program point L100(lines 100 102) no Hoare annotation was computed. [2022-01-10 05:48:46,172 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 475) no Hoare annotation was computed. [2022-01-10 05:48:46,172 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 334) no Hoare annotation was computed. [2022-01-10 05:48:46,172 INFO L858 garLoopResultBuilder]: For program point L200(lines 200 202) no Hoare annotation was computed. [2022-01-10 05:48:46,172 INFO L858 garLoopResultBuilder]: For program point L68(lines 68 70) no Hoare annotation was computed. [2022-01-10 05:48:46,175 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 05:48:46,176 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 05:48:46,185 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] [2022-01-10 05:48:46,186 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] [2022-01-10 05:48:46,186 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] [2022-01-10 05:48:46,186 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] [2022-01-10 05:48:46,205 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] [2022-01-10 05:48:46,205 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] [2022-01-10 05:48:46,205 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] [2022-01-10 05:48:46,205 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] [2022-01-10 05:48:46,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:48:46 BoogieIcfgContainer [2022-01-10 05:48:46,206 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 05:48:46,207 INFO L158 Benchmark]: Toolchain (without parser) took 10588.66ms. Allocated memory was 175.1MB in the beginning and 286.3MB in the end (delta: 111.1MB). Free memory was 119.2MB in the beginning and 220.0MB in the end (delta: -100.8MB). Peak memory consumption was 138.2MB. Max. memory is 8.0GB. [2022-01-10 05:48:46,208 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 175.1MB. Free memory is still 136.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 05:48:46,208 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.47ms. Allocated memory was 175.1MB in the beginning and 237.0MB in the end (delta: 61.9MB). Free memory was 119.0MB in the beginning and 200.2MB in the end (delta: -81.2MB). Peak memory consumption was 6.9MB. Max. memory is 8.0GB. [2022-01-10 05:48:46,208 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.71ms. Allocated memory is still 237.0MB. Free memory was 200.2MB in the beginning and 197.6MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 05:48:46,208 INFO L158 Benchmark]: Boogie Preprocessor took 97.28ms. Allocated memory is still 237.0MB. Free memory was 197.6MB in the beginning and 194.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 05:48:46,209 INFO L158 Benchmark]: RCFGBuilder took 740.06ms. Allocated memory is still 237.0MB. Free memory was 194.4MB in the beginning and 167.7MB in the end (delta: 26.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-01-10 05:48:46,209 INFO L158 Benchmark]: TraceAbstraction took 9282.17ms. Allocated memory was 237.0MB in the beginning and 286.3MB in the end (delta: 49.3MB). Free memory was 167.2MB in the beginning and 220.0MB in the end (delta: -52.8MB). Peak memory consumption was 123.9MB. Max. memory is 8.0GB. [2022-01-10 05:48:46,212 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 175.1MB. Free memory is still 136.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 388.47ms. Allocated memory was 175.1MB in the beginning and 237.0MB in the end (delta: 61.9MB). Free memory was 119.0MB in the beginning and 200.2MB in the end (delta: -81.2MB). Peak memory consumption was 6.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 72.71ms. Allocated memory is still 237.0MB. Free memory was 200.2MB in the beginning and 197.6MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 97.28ms. Allocated memory is still 237.0MB. Free memory was 197.6MB in the beginning and 194.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 740.06ms. Allocated memory is still 237.0MB. Free memory was 194.4MB in the beginning and 167.7MB in the end (delta: 26.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * TraceAbstraction took 9282.17ms. Allocated memory was 237.0MB in the beginning and 286.3MB in the end (delta: 49.3MB). Free memory was 167.2MB in the beginning and 220.0MB in the end (delta: -52.8MB). Peak memory consumption was 123.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] * 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: 567]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 109 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.2s, OverallIterations: 15, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1617 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1617 mSDsluCounter, 7892 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 200 IncrementalHoareTripleChecker+Unchecked, 5546 mSDsCounter, 103 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 721 IncrementalHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 103 mSolverCounterUnsat, 2346 mSDtfsCounter, 721 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 825 GetRequests, 751 SyntacticMatches, 5 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=251occurred in iteration=10, InterpolantAutomatonStates: 90, 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, 15 MinimizatonAttempts, 143 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 18 NumberOfFragments, 114 HoareAnnotationTreeSize, 4 FomulaSimplifications, 182 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 4 FomulaSimplificationsInter, 1209 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 492 NumberOfCodeBlocks, 492 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 818 ConstructedInterpolants, 166 QuantifiedInterpolants, 7089 SizeOfPredicates, 29 NumberOfNonLiveVariables, 1468 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 23 InterpolantComputations, 7 PerfectInterpolantSequences, 238/617 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: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant [2022-01-10 05:48:46,223 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] [2022-01-10 05:48:46,224 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] [2022-01-10 05:48:46,224 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] [2022-01-10 05:48:46,224 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] [2022-01-10 05:48:46,224 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] [2022-01-10 05:48:46,224 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] [2022-01-10 05:48:46,224 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] [2022-01-10 05:48:46,224 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~P1~0#1,QUANTIFIED] Derived loop invariant: (((((this_buffer_empty == 0bv32 && this_expect == 0bv32) && q == 0bv32) || ((forall ULTIMATE.start_main_~P1~0#1 : bv32 :: !(~bvsrem32(ULTIMATE.start_main_~P1~0#1, 2bv32) == 0bv32) || (~bvsrem32(ULTIMATE.start_main_~P1~0#1, 2bv32) == ~bvurem32(~bvadd16(this_expect, 1bv32), 2bv32) && 0bv32 == ~bvneg64(~bvadd16(~bvneg64(~bvadd16(~bvneg64(this_buffer_empty), 1bv32)), 1bv32)))) && q == 3bv32)) || (4bv32 == q && (forall ULTIMATE.start_main_~P1~0#1 : bv32 :: !(~bvsrem32(ULTIMATE.start_main_~P1~0#1, 2bv32) == 0bv32) || (~bvsrem32(ULTIMATE.start_main_~P1~0#1, 2bv32) == ~bvurem32(~bvadd16(this_expect, 1bv32), 2bv32) && ~bvneg64(~bvadd16(~bvneg64(this_buffer_empty), 1bv32)) == 0bv32)))) || ((this_buffer_empty == 0bv32 && q == 5bv32) && !(0bv32 == ~bvurem32(~bvadd16(this_expect, 4294967295bv32), 2bv32)))) || ((!(0bv32 == ~bvurem32(~bvadd16(this_expect, 4294967295bv32), 2bv32)) && this_buffer_empty == 1bv32) && q == 1bv32) - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (this_buffer_empty == 0bv32 && this_expect == 0bv32) && q == 0bv32 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-01-10 05:48:46,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...