/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-acceleration/diamond_2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 01:25:28,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 01:25:28,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 01:25:28,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-24 01:25:28,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 01:25:28,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 01:25:28,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 01:25:28,607 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-02-24 01:25:28,634 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 01:25:28,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 01:25:28,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 01:25:28,636 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-24 01:25:28,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 01:25:28,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-24 01:25:28,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 01:25:28,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 01:25:28,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 01:25:28,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 01:25:28,637 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-24 01:25:28,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 01:25:28,637 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 01:25:28,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 01:25:28,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 01:25:28,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 01:25:28,637 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-24 01:25:28,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 01:25:28,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 01:25:28,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 01:25:28,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-24 01:25:28,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 01:25:28,638 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-02-24 01:25:28,638 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 01:25:28,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 01:25:28,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 01:25:28,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 01:25:28,985 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 01:25:28,986 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 01:25:28,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/diamond_2-2.c [2022-02-24 01:25:29,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2e28552b/02975ffdd5744e1d874221bd3a8a59c6/FLAG146f65a4b [2022-02-24 01:25:29,505 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 01:25:29,505 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/diamond_2-2.c [2022-02-24 01:25:29,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2e28552b/02975ffdd5744e1d874221bd3a8a59c6/FLAG146f65a4b [2022-02-24 01:25:29,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2e28552b/02975ffdd5744e1d874221bd3a8a59c6 [2022-02-24 01:25:29,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 01:25:29,928 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-24 01:25:29,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 01:25:29,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 01:25:29,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 01:25:29,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 01:25:29" (1/1) ... [2022-02-24 01:25:29,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7577fe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:25:29, skipping insertion in model container [2022-02-24 01:25:29,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 01:25:29" (1/1) ... [2022-02-24 01:25:29,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 01:25:29,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 01:25:30,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/diamond_2-2.c[373,386] [2022-02-24 01:25:30,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 01:25:30,127 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 01:25:30,136 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/diamond_2-2.c[373,386] [2022-02-24 01:25:30,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 01:25:30,155 INFO L208 MainTranslator]: Completed translation [2022-02-24 01:25:30,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:25:30 WrapperNode [2022-02-24 01:25:30,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 01:25:30,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 01:25:30,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 01:25:30,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 01:25:30,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:25:30" (1/1) ... [2022-02-24 01:25:30,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:25:30" (1/1) ... [2022-02-24 01:25:30,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:25:30" (1/1) ... [2022-02-24 01:25:30,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:25:30" (1/1) ... [2022-02-24 01:25:30,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:25:30" (1/1) ... [2022-02-24 01:25:30,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:25:30" (1/1) ... [2022-02-24 01:25:30,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:25:30" (1/1) ... [2022-02-24 01:25:30,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 01:25:30,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 01:25:30,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 01:25:30,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 01:25:30,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:25:30" (1/1) ... [2022-02-24 01:25:30,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 01:25:30,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 01:25:30,248 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) [2022-02-24 01:25:30,263 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 [2022-02-24 01:25:30,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 01:25:30,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 01:25:30,297 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 01:25:30,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-24 01:25:30,298 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 01:25:30,298 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 01:25:30,298 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 01:25:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 01:25:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 01:25:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-02-24 01:25:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-24 01:25:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 01:25:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 01:25:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 01:25:30,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 01:25:30,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 01:25:30,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 01:25:30,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 01:25:30,361 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 01:25:30,363 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 01:25:30,557 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 01:25:30,562 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 01:25:30,562 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-24 01:25:30,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 01:25:30 BoogieIcfgContainer [2022-02-24 01:25:30,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 01:25:30,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 01:25:30,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 01:25:30,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 01:25:30,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 01:25:29" (1/3) ... [2022-02-24 01:25:30,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1162d66f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 01:25:30, skipping insertion in model container [2022-02-24 01:25:30,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:25:30" (2/3) ... [2022-02-24 01:25:30,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1162d66f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 01:25:30, skipping insertion in model container [2022-02-24 01:25:30,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 01:25:30" (3/3) ... [2022-02-24 01:25:30,586 INFO L111 eAbstractionObserver]: Analyzing ICFG diamond_2-2.c [2022-02-24 01:25:30,597 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-24 01:25:30,597 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 01:25:30,661 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 01:25:30,674 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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=JORDAN [2022-02-24 01:25:30,674 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 01:25:30,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-24 01:25:30,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-02-24 01:25:30,705 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:25:30,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:25:30,707 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:25:30,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:25:30,712 INFO L85 PathProgramCache]: Analyzing trace with hash -154663714, now seen corresponding path program 1 times [2022-02-24 01:25:30,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:25:30,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297089978] [2022-02-24 01:25:30,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:25:30,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:25:30,792 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 01:25:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:25:30,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:25:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:25:30,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:25:30,928 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:25:30,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297089978] [2022-02-24 01:25:30,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1297089978] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:25:30,930 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:25:30,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-24 01:25:30,931 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542360186] [2022-02-24 01:25:30,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:25:30,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-24 01:25:30,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:25:30,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-24 01:25:30,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-24 01:25:30,997 INFO L87 Difference]: Start difference. First operand has 28 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:25:31,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:25:31,045 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions. [2022-02-24 01:25:31,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-24 01:25:31,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-02-24 01:25:31,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:25:31,052 INFO L225 Difference]: With dead ends: 39 [2022-02-24 01:25:31,053 INFO L226 Difference]: Without dead ends: 22 [2022-02-24 01:25:31,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-24 01:25:31,060 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 29 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:25:31,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 40 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-24 01:25:31,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-02-24 01:25:31,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-02-24 01:25:31,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 17 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:25:31,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 32 transitions. [2022-02-24 01:25:31,105 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 32 transitions. Word has length 11 [2022-02-24 01:25:31,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:25:31,105 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 32 transitions. [2022-02-24 01:25:31,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:25:31,106 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2022-02-24 01:25:31,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-02-24 01:25:31,107 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:25:31,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:25:31,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 01:25:31,108 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:25:31,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:25:31,109 INFO L85 PathProgramCache]: Analyzing trace with hash -213769058, now seen corresponding path program 1 times [2022-02-24 01:25:31,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:25:31,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392720302] [2022-02-24 01:25:31,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:25:31,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:25:31,113 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 01:25:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:25:31,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:25:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:25:31,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:25:31,242 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:25:31,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392720302] [2022-02-24 01:25:31,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1392720302] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:25:31,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:25:31,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:25:31,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861804418] [2022-02-24 01:25:31,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:25:31,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:25:31,244 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:25:31,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:25:31,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:25:31,245 INFO L87 Difference]: Start difference. First operand 22 states and 32 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:25:31,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:25:31,320 INFO L93 Difference]: Finished difference Result 29 states and 40 transitions. [2022-02-24 01:25:31,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:25:31,321 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-02-24 01:25:31,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:25:31,323 INFO L225 Difference]: With dead ends: 29 [2022-02-24 01:25:31,323 INFO L226 Difference]: Without dead ends: 24 [2022-02-24 01:25:31,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:25:31,325 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 28 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:25:31,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 36 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 01:25:31,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-02-24 01:25:31,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2022-02-24 01:25:31,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 18 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:25:31,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 33 transitions. [2022-02-24 01:25:31,332 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 33 transitions. Word has length 11 [2022-02-24 01:25:31,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:25:31,333 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 33 transitions. [2022-02-24 01:25:31,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:25:31,333 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2022-02-24 01:25:31,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-02-24 01:25:31,334 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:25:31,334 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:25:31,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 01:25:31,334 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:25:31,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:25:31,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1726513949, now seen corresponding path program 1 times [2022-02-24 01:25:31,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:25:31,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136751160] [2022-02-24 01:25:31,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:25:31,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:25:31,377 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-24 01:25:31,377 INFO L275 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-02-24 01:25:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-24 01:25:31,400 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-24 01:25:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-24 01:25:31,448 INFO L138 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-24 01:25:31,448 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-24 01:25:31,453 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-24 01:25:31,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 01:25:31,458 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-24 01:25:31,461 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-24 01:25:31,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 01:25:31 BoogieIcfgContainer [2022-02-24 01:25:31,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-24 01:25:31,475 INFO L158 Benchmark]: Toolchain (without parser) took 1546.84ms. Allocated memory was 191.9MB in the beginning and 264.2MB in the end (delta: 72.4MB). Free memory was 140.0MB in the beginning and 185.8MB in the end (delta: -45.8MB). Peak memory consumption was 26.8MB. Max. memory is 8.0GB. [2022-02-24 01:25:31,476 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 191.9MB. Free memory is still 156.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-24 01:25:31,477 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.92ms. Allocated memory was 191.9MB in the beginning and 264.2MB in the end (delta: 72.4MB). Free memory was 139.8MB in the beginning and 237.5MB in the end (delta: -97.7MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. [2022-02-24 01:25:31,480 INFO L158 Benchmark]: Boogie Preprocessor took 32.89ms. Allocated memory is still 264.2MB. Free memory was 237.5MB in the beginning and 236.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-24 01:25:31,485 INFO L158 Benchmark]: RCFGBuilder took 373.59ms. Allocated memory is still 264.2MB. Free memory was 236.1MB in the beginning and 224.4MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-24 01:25:31,485 INFO L158 Benchmark]: TraceAbstraction took 909.01ms. Allocated memory is still 264.2MB. Free memory was 223.5MB in the beginning and 185.8MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2022-02-24 01:25:31,490 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 191.9MB. Free memory is still 156.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 226.92ms. Allocated memory was 191.9MB in the beginning and 264.2MB in the end (delta: 72.4MB). Free memory was 139.8MB in the beginning and 237.5MB in the end (delta: -97.7MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.89ms. Allocated memory is still 264.2MB. Free memory was 237.5MB in the beginning and 236.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 373.59ms. Allocated memory is still 264.2MB. Free memory was 236.1MB in the beginning and 224.4MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 909.01ms. Allocated memory is still 264.2MB. Free memory was 223.5MB in the beginning and 185.8MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. 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: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L14] unsigned int x = 0; [L15] unsigned int y = __VERIFIER_nondet_uint(); [L17] COND TRUE x < 99 [L18] COND FALSE !(y % 2 == 0) [L19] x++ [L21] COND TRUE y % 2 == 0 [L21] x += 2 [L24] COND TRUE y % 2 == 0 [L24] x += 2 [L27] COND TRUE y % 2 == 0 [L27] x += 2 [L30] COND TRUE y % 2 == 0 [L30] x += 2 [L33] COND TRUE y % 2 == 0 [L33] x += 2 [L36] COND TRUE y % 2 == 0 [L36] x += 2 [L39] COND TRUE y % 2 == 0 [L39] x += 2 [L42] COND FALSE !(y % 2 == 0) [L43] x -= 4 [L45] COND TRUE y % 2 == 0 [L45] x += 2 [L17] COND FALSE !(x < 99) [L49] CALL __VERIFIER_assert((x % 2) == (y % 2)) [L7] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 66 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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! [2022-02-24 01:25:31,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...