/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/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/loop-invgen/nested9.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 03:53:56,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 03:53:56,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 03:53:56,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-15 03:53:56,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 03:53:56,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 03:53:56,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 03:53:56,670 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-15 03:53:56,683 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 03:53:56,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 03:53:56,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 03:53:56,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 03:53:56,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 03:53:56,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 03:53:56,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 03:53:56,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 03:53:56,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 03:53:56,685 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 03:53:56,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 03:53:56,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 03:53:56,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 03:53:56,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 03:53:56,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 03:53:56,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 03:53:56,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 03:53:56,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-15 03:53:56,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 03:53:56,686 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-15 03:53:56,686 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 03:53:56,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 03:53:56,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 03:53:56,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 03:53:56,858 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 03:53:56,858 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 03:53:56,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/nested9.i [2022-02-15 03:53:56,900 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5415d475b/4f2ab303191643ffa2b7efc3bdf73c89/FLAGa66a13e5c [2022-02-15 03:53:57,236 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 03:53:57,236 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/nested9.i [2022-02-15 03:53:57,242 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5415d475b/4f2ab303191643ffa2b7efc3bdf73c89/FLAGa66a13e5c [2022-02-15 03:53:57,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5415d475b/4f2ab303191643ffa2b7efc3bdf73c89 [2022-02-15 03:53:57,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 03:53:57,253 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-15 03:53:57,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 03:53:57,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 03:53:57,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 03:53:57,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 03:53:57" (1/1) ... [2022-02-15 03:53:57,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16e91f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:53:57, skipping insertion in model container [2022-02-15 03:53:57,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 03:53:57" (1/1) ... [2022-02-15 03:53:57,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 03:53:57,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 03:53:57,414 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-invgen/nested9.i[893,906] [2022-02-15 03:53:57,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 03:53:57,437 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 03:53:57,460 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-invgen/nested9.i[893,906] [2022-02-15 03:53:57,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 03:53:57,490 INFO L208 MainTranslator]: Completed translation [2022-02-15 03:53:57,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:53:57 WrapperNode [2022-02-15 03:53:57,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 03:53:57,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 03:53:57,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 03:53:57,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 03:53:57,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:53:57" (1/1) ... [2022-02-15 03:53:57,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:53:57" (1/1) ... [2022-02-15 03:53:57,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:53:57" (1/1) ... [2022-02-15 03:53:57,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:53:57" (1/1) ... [2022-02-15 03:53:57,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:53:57" (1/1) ... [2022-02-15 03:53:57,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:53:57" (1/1) ... [2022-02-15 03:53:57,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:53:57" (1/1) ... [2022-02-15 03:53:57,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 03:53:57,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 03:53:57,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 03:53:57,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 03:53:57,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:53:57" (1/1) ... [2022-02-15 03:53:57,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 03:53:57,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 03:53:57,542 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) [2022-02-15 03:53:57,543 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 [2022-02-15 03:53:57,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 03:53:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 03:53:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 03:53:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-15 03:53:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-15 03:53:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 03:53:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 03:53:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 03:53:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-02-15 03:53:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-02-15 03:53:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 03:53:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 03:53:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-15 03:53:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-15 03:53:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 03:53:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 03:53:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 03:53:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 03:53:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 03:53:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 03:53:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 03:53:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 03:53:57,619 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 03:53:57,621 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 03:53:57,716 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 03:53:57,721 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 03:53:57,721 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-02-15 03:53:57,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 03:53:57 BoogieIcfgContainer [2022-02-15 03:53:57,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 03:53:57,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 03:53:57,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 03:53:57,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 03:53:57,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 03:53:57" (1/3) ... [2022-02-15 03:53:57,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ee582a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 03:53:57, skipping insertion in model container [2022-02-15 03:53:57,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:53:57" (2/3) ... [2022-02-15 03:53:57,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ee582a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 03:53:57, skipping insertion in model container [2022-02-15 03:53:57,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 03:53:57" (3/3) ... [2022-02-15 03:53:57,741 INFO L111 eAbstractionObserver]: Analyzing ICFG nested9.i [2022-02-15 03:53:57,744 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-15 03:53:57,744 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 03:53:57,776 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 03:53:57,787 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=QVASR [2022-02-15 03:53:57,787 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 03:53:57,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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) [2022-02-15 03:53:57,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-02-15 03:53:57,801 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:53:57,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:53:57,802 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:53:57,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:53:57,806 INFO L85 PathProgramCache]: Analyzing trace with hash -2111647297, now seen corresponding path program 1 times [2022-02-15 03:53:57,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:53:57,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717894996] [2022-02-15 03:53:57,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:53:57,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:53:57,864 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:53:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:58,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:53:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:58,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:53:58,093 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:53:58,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1717894996] [2022-02-15 03:53:58,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1717894996] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:53:58,096 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:53:58,096 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 03:53:58,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645747870] [2022-02-15 03:53:58,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:53:58,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 03:53:58,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:53:58,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 03:53:58,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-02-15 03:53:58,127 INFO L87 Difference]: Start difference. First operand has 29 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-02-15 03:53:58,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:53:58,372 INFO L93 Difference]: Finished difference Result 67 states and 98 transitions. [2022-02-15 03:53:58,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 03:53:58,374 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 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 18 [2022-02-15 03:53:58,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:53:58,383 INFO L225 Difference]: With dead ends: 67 [2022-02-15 03:53:58,384 INFO L226 Difference]: Without dead ends: 41 [2022-02-15 03:53:58,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-02-15 03:53:58,389 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 58 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:53:58,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 54 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 03:53:58,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-02-15 03:53:58,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 36. [2022-02-15 03:53:58,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 28 states have internal predecessors, (33), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-15 03:53:58,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2022-02-15 03:53:58,422 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 18 [2022-02-15 03:53:58,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:53:58,422 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2022-02-15 03:53:58,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-02-15 03:53:58,422 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2022-02-15 03:53:58,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-02-15 03:53:58,423 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:53:58,423 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:53:58,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 03:53:58,424 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:53:58,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:53:58,424 INFO L85 PathProgramCache]: Analyzing trace with hash 192634036, now seen corresponding path program 1 times [2022-02-15 03:53:58,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:53:58,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972511028] [2022-02-15 03:53:58,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:53:58,579 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-02-15 03:53:58,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:53:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:58,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:53:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:58,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:53:58,706 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:53:58,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972511028] [2022-02-15 03:53:58,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [972511028] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:53:58,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:53:58,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 03:53:58,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272425292] [2022-02-15 03:53:58,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:53:58,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 03:53:58,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:53:58,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 03:53:58,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-15 03:53:58,708 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 11 states, 10 states have (on average 1.7) internal successors, (17), 9 states have internal predecessors, (17), 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) [2022-02-15 03:53:59,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:53:59,062 INFO L93 Difference]: Finished difference Result 60 states and 78 transitions. [2022-02-15 03:53:59,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 03:53:59,062 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.7) internal successors, (17), 9 states have internal predecessors, (17), 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 21 [2022-02-15 03:53:59,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:53:59,063 INFO L225 Difference]: With dead ends: 60 [2022-02-15 03:53:59,063 INFO L226 Difference]: Without dead ends: 0 [2022-02-15 03:53:59,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=515, Unknown=0, NotChecked=0, Total=650 [2022-02-15 03:53:59,065 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 46 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:53:59,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 46 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 03:53:59,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-15 03:53:59,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-15 03:53:59,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 03:53:59,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-15 03:53:59,066 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-02-15 03:53:59,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:53:59,067 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-15 03:53:59,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.7) internal successors, (17), 9 states have internal predecessors, (17), 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) [2022-02-15 03:53:59,067 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-15 03:53:59,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-15 03:53:59,069 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-15 03:53:59,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 03:53:59,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-02-15 03:53:59,249 INFO L858 garLoopResultBuilder]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2022-02-15 03:53:59,250 INFO L858 garLoopResultBuilder]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2022-02-15 03:53:59,250 INFO L858 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2022-02-15 03:53:59,250 INFO L858 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-02-15 03:53:59,250 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2022-02-15 03:53:59,250 INFO L858 garLoopResultBuilder]: For program point L15-2(lines 14 16) no Hoare annotation was computed. [2022-02-15 03:53:59,250 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2022-02-15 03:53:59,251 INFO L854 garLoopResultBuilder]: At program point L35-2(lines 35 37) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) (+ main_~i~0 (* main_~n~0 2)))) [2022-02-15 03:53:59,251 INFO L854 garLoopResultBuilder]: At program point L35-3(lines 35 37) the Hoare annotation is: (<= (+ main_~i~0 1) main_~n~0) [2022-02-15 03:53:59,251 INFO L861 garLoopResultBuilder]: At program point L31(line 31) the Hoare annotation is: true [2022-02-15 03:53:59,251 INFO L861 garLoopResultBuilder]: At program point mainEXIT(lines 25 40) the Hoare annotation is: true [2022-02-15 03:53:59,251 INFO L854 garLoopResultBuilder]: At program point L36-2(lines 36 37) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) (+ main_~i~0 (* main_~n~0 2)))) [2022-02-15 03:53:59,251 INFO L861 garLoopResultBuilder]: At program point L32(line 32) the Hoare annotation is: true [2022-02-15 03:53:59,251 INFO L854 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 (* main_~n~0 2)))) (and (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~k~0 4) .cse0) (<= (+ main_~j~0 3) .cse0))) [2022-02-15 03:53:59,251 INFO L854 garLoopResultBuilder]: At program point L37-1(lines 36 37) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 (* main_~n~0 2)))) (and (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~k~0 4) .cse0) (<= (+ main_~j~0 3) .cse0))) [2022-02-15 03:53:59,251 INFO L861 garLoopResultBuilder]: At program point L33(line 33) the Hoare annotation is: true [2022-02-15 03:53:59,252 INFO L861 garLoopResultBuilder]: At program point L33-1(line 33) the Hoare annotation is: true [2022-02-15 03:53:59,252 INFO L861 garLoopResultBuilder]: At program point mainFINAL(lines 25 40) the Hoare annotation is: true [2022-02-15 03:53:59,252 INFO L861 garLoopResultBuilder]: At program point L38(lines 25 40) the Hoare annotation is: true [2022-02-15 03:53:59,252 INFO L854 garLoopResultBuilder]: At program point L34-2(lines 34 37) the Hoare annotation is: (<= (+ main_~i~0 1) main_~n~0) [2022-02-15 03:53:59,252 INFO L861 garLoopResultBuilder]: At program point L34-3(lines 34 37) the Hoare annotation is: true [2022-02-15 03:53:59,252 INFO L861 garLoopResultBuilder]: At program point L30(line 30) the Hoare annotation is: true [2022-02-15 03:53:59,252 INFO L861 garLoopResultBuilder]: At program point mainENTRY(lines 25 40) the Hoare annotation is: true [2022-02-15 03:53:59,252 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-02-15 03:53:59,252 INFO L854 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__BLAST_NONDET~0 |old(~__BLAST_NONDET~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-02-15 03:53:59,252 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-02-15 03:53:59,252 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-02-15 03:53:59,253 INFO L861 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-02-15 03:53:59,253 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-02-15 03:53:59,253 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-02-15 03:53:59,253 INFO L854 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-02-15 03:53:59,253 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2022-02-15 03:53:59,253 INFO L854 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-02-15 03:53:59,253 INFO L854 garLoopResultBuilder]: At program point L19(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-02-15 03:53:59,253 INFO L854 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-02-15 03:53:59,253 INFO L854 garLoopResultBuilder]: At program point L18(lines 18 20) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-02-15 03:53:59,256 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-15 03:53:59,256 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-15 03:53:59,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 03:53:59 BoogieIcfgContainer [2022-02-15 03:53:59,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-15 03:53:59,266 INFO L158 Benchmark]: Toolchain (without parser) took 2012.95ms. Allocated memory was 185.6MB in the beginning and 260.0MB in the end (delta: 74.4MB). Free memory was 129.0MB in the beginning and 188.4MB in the end (delta: -59.4MB). Peak memory consumption was 13.2MB. Max. memory is 8.0GB. [2022-02-15 03:53:59,267 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 185.6MB. Free memory is still 145.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 03:53:59,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.25ms. Allocated memory was 185.6MB in the beginning and 260.0MB in the end (delta: 74.4MB). Free memory was 128.8MB in the beginning and 234.0MB in the end (delta: -105.2MB). Peak memory consumption was 15.0MB. Max. memory is 8.0GB. [2022-02-15 03:53:59,267 INFO L158 Benchmark]: Boogie Preprocessor took 22.23ms. Allocated memory is still 260.0MB. Free memory was 234.0MB in the beginning and 232.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-15 03:53:59,268 INFO L158 Benchmark]: RCFGBuilder took 213.14ms. Allocated memory is still 260.0MB. Free memory was 232.4MB in the beginning and 220.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-15 03:53:59,268 INFO L158 Benchmark]: TraceAbstraction took 1529.93ms. Allocated memory is still 260.0MB. Free memory was 220.3MB in the beginning and 188.4MB in the end (delta: 31.9MB). Peak memory consumption was 31.9MB. Max. memory is 8.0GB. [2022-02-15 03:53:59,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 185.6MB. Free memory is still 145.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 236.25ms. Allocated memory was 185.6MB in the beginning and 260.0MB in the end (delta: 74.4MB). Free memory was 128.8MB in the beginning and 234.0MB in the end (delta: -105.2MB). Peak memory consumption was 15.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.23ms. Allocated memory is still 260.0MB. Free memory was 234.0MB in the beginning and 232.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 213.14ms. Allocated memory is still 260.0MB. Free memory was 232.4MB in the beginning and 220.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1529.93ms. Allocated memory is still 260.0MB. Free memory was 220.3MB in the beginning and 188.4MB in the end (delta: 31.9MB). Peak memory consumption was 31.9MB. 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 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 105 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 100 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 332 IncrementalHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 41 mSDtfsCounter, 332 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=1, InterpolantAutomatonStates: 27, 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 29 LocationsWithAnnotation, 65 PreInvPairs, 124 NumberOfFragments, 145 HoareAnnotationTreeSize, 65 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 29 FomulaSimplificationsInter, 799 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: i + 1 <= n - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: i + 1 <= n && j + 3 <= i + n * 2 - ProcedureContractResult [Line: 25]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) RESULT: Ultimate proved your program to be correct! [2022-02-15 03:53:59,295 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...