/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/ldv-regression/test27-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:02:50,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:02:50,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:02:50,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 06:02:50,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:02:50,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:02:50,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:02:50,588 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 06:02:50,617 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:02:50,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:02:50,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:02:50,618 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:02:50,618 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:02:50,618 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:02:50,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:02:50,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:02:50,619 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:02:50,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:02:50,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:02:50,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:02:50,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:02:50,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:02:50,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:02:50,620 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:02:50,620 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:02:50,620 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:02:50,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:02:50,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:02:50,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:02:50,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:02:50,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:02:50,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:02:50,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:02:50,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:02:50,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:02:50,621 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:02:50,621 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:02:50,621 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:02:50,621 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:02:50,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:02:50,621 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:02:50,621 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:02:50,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:02:50,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:02:50,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:02:50,814 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:02:50,816 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:02:50,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test27-2.c [2022-01-10 06:02:50,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec538ab49/102134b65beb44c9a8a4b7b1511b5a1f/FLAGd1bb77af7 [2022-01-10 06:02:51,229 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:02:51,229 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test27-2.c [2022-01-10 06:02:51,234 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec538ab49/102134b65beb44c9a8a4b7b1511b5a1f/FLAGd1bb77af7 [2022-01-10 06:02:51,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec538ab49/102134b65beb44c9a8a4b7b1511b5a1f [2022-01-10 06:02:51,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:02:51,245 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:02:51,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:02:51,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:02:51,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:02:51,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:02:51" (1/1) ... [2022-01-10 06:02:51,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76dd2a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:51, skipping insertion in model container [2022-01-10 06:02:51,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:02:51" (1/1) ... [2022-01-10 06:02:51,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:02:51,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:02:51,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test27-2.c[1224,1237] [2022-01-10 06:02:51,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:02:51,417 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:02:51,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test27-2.c[1224,1237] [2022-01-10 06:02:51,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:02:51,440 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:02:51,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:51 WrapperNode [2022-01-10 06:02:51,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:02:51,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:02:51,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:02:51,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:02:51,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:51" (1/1) ... [2022-01-10 06:02:51,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:51" (1/1) ... [2022-01-10 06:02:51,479 INFO L137 Inliner]: procedures = 18, calls = 42, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 110 [2022-01-10 06:02:51,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:02:51,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:02:51,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:02:51,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:02:51,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:51" (1/1) ... [2022-01-10 06:02:51,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:51" (1/1) ... [2022-01-10 06:02:51,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:51" (1/1) ... [2022-01-10 06:02:51,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:51" (1/1) ... [2022-01-10 06:02:51,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:51" (1/1) ... [2022-01-10 06:02:51,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:51" (1/1) ... [2022-01-10 06:02:51,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:51" (1/1) ... [2022-01-10 06:02:51,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:02:51,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:02:51,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:02:51,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:02:51,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:51" (1/1) ... [2022-01-10 06:02:51,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:02:51,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:02:51,539 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 06:02:51,569 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 06:02:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-10 06:02:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:02:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:02:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-10 06:02:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 06:02:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 06:02:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:02:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:02:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 06:02:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 06:02:51,649 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:02:51,650 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:02:51,870 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:02:51,874 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:02:51,874 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 06:02:51,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:02:51 BoogieIcfgContainer [2022-01-10 06:02:51,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:02:51,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:02:51,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:02:51,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:02:51,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:02:51" (1/3) ... [2022-01-10 06:02:51,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78932620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:02:51, skipping insertion in model container [2022-01-10 06:02:51,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:51" (2/3) ... [2022-01-10 06:02:51,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78932620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:02:51, skipping insertion in model container [2022-01-10 06:02:51,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:02:51" (3/3) ... [2022-01-10 06:02:51,887 INFO L111 eAbstractionObserver]: Analyzing ICFG test27-2.c [2022-01-10 06:02:51,890 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:02:51,891 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:02:51,920 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:02:51,925 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 06:02:51,925 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:02:51,936 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 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 06:02:51,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 06:02:51,940 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:02:51,940 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:02:51,941 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:02:51,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:02:51,948 INFO L85 PathProgramCache]: Analyzing trace with hash -631347226, now seen corresponding path program 1 times [2022-01-10 06:02:51,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:02:51,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407607337] [2022-01-10 06:02:51,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:02:51,957 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:02:51,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:02:51,958 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 06:02:51,960 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 06:02:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:02:52,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:02:52,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:02:52,113 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 06:02:52,114 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:02:52,114 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:02:52,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407607337] [2022-01-10 06:02:52,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407607337] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:02:52,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:02:52,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:02:52,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002270051] [2022-01-10 06:02:52,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:02:52,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:02:52,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:02:52,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:02:52,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:02:52,140 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 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 5.0) internal successors, (10), 2 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 06:02:52,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:02:52,149 INFO L93 Difference]: Finished difference Result 30 states and 40 transitions. [2022-01-10 06:02:52,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:02:52,150 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 06:02:52,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:02:52,155 INFO L225 Difference]: With dead ends: 30 [2022-01-10 06:02:52,155 INFO L226 Difference]: Without dead ends: 13 [2022-01-10 06:02:52,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 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 06:02:52,160 INFO L933 BasicCegarLoop]: 20 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, 20 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 06:02:52,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:02:52,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-01-10 06:02:52,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-01-10 06:02:52,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:02:52,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-01-10 06:02:52,180 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2022-01-10 06:02:52,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:02:52,180 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-01-10 06:02:52,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 06:02:52,180 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-01-10 06:02:52,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 06:02:52,181 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:02:52,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:02:52,189 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 06:02:52,386 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 06:02:52,386 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:02:52,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:02:52,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1697064536, now seen corresponding path program 1 times [2022-01-10 06:02:52,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:02:52,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850549746] [2022-01-10 06:02:52,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:02:52,388 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:02:52,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:02:52,390 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 06:02:52,391 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 06:02:52,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:02:52,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:02:52,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:02:52,563 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 06:02:52,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:02:52,564 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:02:52,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850549746] [2022-01-10 06:02:52,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850549746] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:02:52,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:02:52,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:02:52,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242787714] [2022-01-10 06:02:52,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:02:52,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:02:52,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:02:52,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:02:52,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:02:52,566 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:02:52,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:02:52,606 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-01-10 06:02:52,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:02:52,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-01-10 06:02:52,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:02:52,610 INFO L225 Difference]: With dead ends: 24 [2022-01-10 06:02:52,610 INFO L226 Difference]: Without dead ends: 15 [2022-01-10 06:02:52,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 06:02:52,611 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:02:52,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 22 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:02:52,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-01-10 06:02:52,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-01-10 06:02:52,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 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 06:02:52,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-01-10 06:02:52,614 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-01-10 06:02:52,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:02:52,614 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-01-10 06:02:52,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:02:52,615 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-01-10 06:02:52,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-10 06:02:52,615 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:02:52,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:02:52,633 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 06:02:52,816 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 06:02:52,816 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:02:52,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:02:52,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1434190826, now seen corresponding path program 1 times [2022-01-10 06:02:52,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:02:52,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884393345] [2022-01-10 06:02:52,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:02:52,818 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:02:52,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:02:52,819 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 06:02:52,820 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 06:02:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:02:52,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 06:02:52,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:02:52,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:02:52,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:02:53,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:02:53,029 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:02:53,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884393345] [2022-01-10 06:02:53,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1884393345] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:02:53,030 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:02:53,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-01-10 06:02:53,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649403694] [2022-01-10 06:02:53,034 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:02:53,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:02:53,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:02:53,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:02:53,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:02:53,036 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:02:53,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:02:53,149 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-01-10 06:02:53,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:02:53,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-01-10 06:02:53,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:02:53,151 INFO L225 Difference]: With dead ends: 29 [2022-01-10 06:02:53,151 INFO L226 Difference]: Without dead ends: 20 [2022-01-10 06:02:53,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:02:53,152 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 4 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:02:53,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 32 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:02:53,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-01-10 06:02:53,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-01-10 06:02:53,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 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 06:02:53,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-01-10 06:02:53,155 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13 [2022-01-10 06:02:53,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:02:53,155 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-01-10 06:02:53,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:02:53,156 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-01-10 06:02:53,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 06:02:53,156 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:02:53,156 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:02:53,166 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 06:02:53,356 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 06:02:53,357 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:02:53,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:02:53,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1444204464, now seen corresponding path program 2 times [2022-01-10 06:02:53,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:02:53,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [149369825] [2022-01-10 06:02:53,358 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 06:02:53,358 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:02:53,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:02:53,359 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 06:02:53,361 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 06:02:53,591 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-10 06:02:53,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 06:02:53,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:02:53,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:02:53,676 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:02:53,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:02:53,782 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:02:53,783 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:02:53,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [149369825] [2022-01-10 06:02:53,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [149369825] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:02:53,783 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:02:53,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-01-10 06:02:53,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855284221] [2022-01-10 06:02:53,784 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:02:53,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 06:02:53,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:02:53,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 06:02:53,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-01-10 06:02:53,785 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 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 06:02:54,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:02:54,344 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2022-01-10 06:02:54,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 06:02:54,345 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 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 19 [2022-01-10 06:02:54,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:02:54,346 INFO L225 Difference]: With dead ends: 41 [2022-01-10 06:02:54,346 INFO L226 Difference]: Without dead ends: 32 [2022-01-10 06:02:54,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2022-01-10 06:02:54,347 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 11 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 06:02:54,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 62 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 06:02:54,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-01-10 06:02:54,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-01-10 06:02:54,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.064516129032258) internal successors, (33), 31 states have internal predecessors, (33), 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 06:02:54,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2022-01-10 06:02:54,352 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 19 [2022-01-10 06:02:54,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:02:54,352 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2022-01-10 06:02:54,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 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 06:02:54,352 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-01-10 06:02:54,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-10 06:02:54,353 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:02:54,353 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:02:54,368 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 06:02:54,562 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 06:02:54,562 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:02:54,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:02:54,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1003651516, now seen corresponding path program 3 times [2022-01-10 06:02:54,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:02:54,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770371032] [2022-01-10 06:02:54,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-10 06:02:54,564 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:02:54,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:02:54,565 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 06:02:54,566 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 06:02:55,859 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-01-10 06:02:55,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-01-10 06:02:55,860 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 06:02:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 06:02:56,503 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-01-10 06:02:56,504 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 06:02:56,504 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 06:02:56,524 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 06:02:56,706 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 06:02:56,709 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2022-01-10 06:02:56,711 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 06:02:56,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:02:56 BoogieIcfgContainer [2022-01-10 06:02:56,743 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 06:02:56,744 INFO L158 Benchmark]: Toolchain (without parser) took 5498.28ms. Allocated memory was 199.2MB in the beginning and 264.2MB in the end (delta: 65.0MB). Free memory was 151.6MB in the beginning and 228.6MB in the end (delta: -77.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 06:02:56,744 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 199.2MB. Free memory was 168.0MB in the beginning and 167.9MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 06:02:56,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.71ms. Allocated memory is still 199.2MB. Free memory was 151.4MB in the beginning and 173.0MB in the end (delta: -21.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-10 06:02:56,744 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.11ms. Allocated memory is still 199.2MB. Free memory was 173.0MB in the beginning and 171.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 06:02:56,745 INFO L158 Benchmark]: Boogie Preprocessor took 29.95ms. Allocated memory is still 199.2MB. Free memory was 171.4MB in the beginning and 169.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 06:02:56,745 INFO L158 Benchmark]: RCFGBuilder took 365.38ms. Allocated memory is still 199.2MB. Free memory was 169.8MB in the beginning and 154.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-01-10 06:02:56,745 INFO L158 Benchmark]: TraceAbstraction took 4866.83ms. Allocated memory was 199.2MB in the beginning and 264.2MB in the end (delta: 65.0MB). Free memory was 154.1MB in the beginning and 228.6MB in the end (delta: -74.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 06:02:56,747 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 199.2MB. Free memory was 168.0MB in the beginning and 167.9MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 193.71ms. Allocated memory is still 199.2MB. Free memory was 151.4MB in the beginning and 173.0MB in the end (delta: -21.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.11ms. Allocated memory is still 199.2MB. Free memory was 173.0MB in the beginning and 171.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.95ms. Allocated memory is still 199.2MB. Free memory was 171.4MB in the beginning and 169.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 365.38ms. Allocated memory is still 199.2MB. Free memory was 169.8MB in the beginning and 154.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 4866.83ms. Allocated memory was 199.2MB in the beginning and 264.2MB in the end (delta: 65.0MB). Free memory was 154.1MB in the beginning and 228.6MB in the end (delta: -74.5MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 55]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] struct cont cont; [L24] struct dummy dummy; [L25] struct dummy *dummies[10]; [L26] int a[10]; [L27] int i, *pa; [L28] i = __VERIFIER_nondet_int() [L29] int j = 0; VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=0] [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=0] [L29] j++ VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=1] [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=1] [L29] j++ VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=2] [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=2] [L29] j++ VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=3] [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=3] [L29] j++ VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=4] [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=4] [L29] j++ VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=5] [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=5] [L29] j++ VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=6] [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=6] [L29] j++ VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=7] [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=7] [L29] j++ VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=8] [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=8] [L29] j++ VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=9] [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=9] [L29] j++ VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=10] [L29] COND FALSE !(j < 10) VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, j=10] [L36] COND TRUE i >= 0 && i < 9 [L37] a[i] = i [L38] dummy.array = &a[i] [L39] dummies[i + 1] = &dummy [L40] cont.array = &dummies[0] [L41] EXPR cont.array [L41] EXPR cont.array[i] [L41] EXPR cont.array[i]->array [L41] pa = &cont.array[i]->array[i] [L42] EXPR a[i] VAL [a={7:0}, a[i]=8, cont={18:0}, dummies={6:0}, dummy={5:0}, i=8, j=10, pa={7:0}] [L42] COND TRUE a[i] > 0 [L43] EXPR dummies[i + 1] [L43] EXPR dummies[i + 1]->array [L43] EXPR dummies[i + 1]->array[i] [L43] i = dummies[i + 1]->array[i] - 10 [L44] EXPR \read(*pa) VAL [\read(*pa)=-2147483646, a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, i=2147483640, j=10, pa={7:0}] [L44] COND FALSE !(i < *pa) [L47] CALL, EXPR check(&cont, i) [L18] EXPR pc->array [L18] EXPR pc->array[i] [L18] EXPR pc->array[i]->array [L18] EXPR pc->array[i]->array[i] [L18] return pc->array[i]->array[i] == i; [L47] RET, EXPR check(&cont, i) [L47] COND TRUE !check(&cont, i) [L55] reach_error() VAL [a={7:0}, cont={18:0}, dummies={6:0}, dummy={5:0}, i=2147483640, j=10, pa={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 5, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 136 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 80 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 56 mSDtfsCounter, 89 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=4, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 159 SizeOfPredicates, 3 NumberOfNonLiveVariables, 568 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 0/34 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-10 06:02:56,779 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...