/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/loops/sum03-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 20:40:18,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 20:40:18,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 20:40:18,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 20:40:18,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 20:40:18,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 20:40:18,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 20:40:18,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 20:40:18,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 20:40:18,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 20:40:18,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 20:40:18,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 20:40:18,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 20:40:18,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 20:40:18,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 20:40:18,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 20:40:18,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 20:40:18,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 20:40:18,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 20:40:18,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 20:40:18,492 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 20:40:18,501 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 20:40:18,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 20:40:18,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 20:40:18,502 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 20:40:18,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 20:40:18,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 20:40:18,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 20:40:18,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 20:40:18,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 20:40:18,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 20:40:18,503 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 20:40:18,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 20:40:18,503 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 20:40:18,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 20:40:18,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 20:40:18,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 20:40:18,504 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 20:40:18,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 20:40:18,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 20:40:18,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 20:40:18,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 20:40:18,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 20:40:18,504 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 20:40:18,504 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 20:40:18,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 20:40:18,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 20:40:18,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 20:40:18,710 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 20:40:18,711 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 20:40:18,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum03-1.i [2022-01-31 20:40:18,760 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f97affcda/4c2f9870b4f041ad8f21a3e5163db45b/FLAGbb39ec031 [2022-01-31 20:40:19,050 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 20:40:19,051 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum03-1.i [2022-01-31 20:40:19,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f97affcda/4c2f9870b4f041ad8f21a3e5163db45b/FLAGbb39ec031 [2022-01-31 20:40:19,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f97affcda/4c2f9870b4f041ad8f21a3e5163db45b [2022-01-31 20:40:19,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 20:40:19,496 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 20:40:19,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 20:40:19,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 20:40:19,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 20:40:19,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 08:40:19" (1/1) ... [2022-01-31 20:40:19,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a9acff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:40:19, skipping insertion in model container [2022-01-31 20:40:19,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 08:40:19" (1/1) ... [2022-01-31 20:40:19,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 20:40:19,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 20:40:19,616 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/sum03-1.i[807,820] [2022-01-31 20:40:19,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 20:40:19,626 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 20:40:19,634 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/sum03-1.i[807,820] [2022-01-31 20:40:19,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 20:40:19,643 INFO L208 MainTranslator]: Completed translation [2022-01-31 20:40:19,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:40:19 WrapperNode [2022-01-31 20:40:19,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 20:40:19,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 20:40:19,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 20:40:19,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 20:40:19,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:40:19" (1/1) ... [2022-01-31 20:40:19,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:40:19" (1/1) ... [2022-01-31 20:40:19,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:40:19" (1/1) ... [2022-01-31 20:40:19,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:40:19" (1/1) ... [2022-01-31 20:40:19,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:40:19" (1/1) ... [2022-01-31 20:40:19,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:40:19" (1/1) ... [2022-01-31 20:40:19,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:40:19" (1/1) ... [2022-01-31 20:40:19,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 20:40:19,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 20:40:19,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 20:40:19,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 20:40:19,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:40:19" (1/1) ... [2022-01-31 20:40:19,667 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 20:40:19,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 20:40:19,684 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) [2022-01-31 20:40:19,700 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 [2022-01-31 20:40:19,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 20:40:19,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 20:40:19,717 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 20:40:19,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-31 20:40:19,718 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 20:40:19,718 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 20:40:19,718 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 20:40:19,718 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-01-31 20:40:19,718 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-01-31 20:40:19,719 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 20:40:19,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 20:40:19,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 20:40:19,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-01-31 20:40:19,720 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 20:40:19,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 20:40:19,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 20:40:19,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 20:40:19,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 20:40:19,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 20:40:19,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 20:40:19,765 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 20:40:19,766 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 20:40:19,832 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 20:40:19,835 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 20:40:19,836 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 20:40:19,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:40:19 BoogieIcfgContainer [2022-01-31 20:40:19,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 20:40:19,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 20:40:19,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 20:40:19,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 20:40:19,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 08:40:19" (1/3) ... [2022-01-31 20:40:19,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b19c63f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 08:40:19, skipping insertion in model container [2022-01-31 20:40:19,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:40:19" (2/3) ... [2022-01-31 20:40:19,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b19c63f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 08:40:19, skipping insertion in model container [2022-01-31 20:40:19,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:40:19" (3/3) ... [2022-01-31 20:40:19,845 INFO L111 eAbstractionObserver]: Analyzing ICFG sum03-1.i [2022-01-31 20:40:19,848 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 20:40:19,848 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 20:40:19,878 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 20:40:19,882 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 [2022-01-31 20:40:19,882 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 20:40:19,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 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) [2022-01-31 20:40:19,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-31 20:40:19,895 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 20:40:19,895 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 20:40:19,896 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 20:40:19,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 20:40:19,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1946695220, now seen corresponding path program 1 times [2022-01-31 20:40:19,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 20:40:19,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [31268373] [2022-01-31 20:40:19,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 20:40:19,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 20:40:19,960 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 20:40:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 20:40:20,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 20:40:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 20:40:20,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 20:40:20,291 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 20:40:20,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [31268373] [2022-01-31 20:40:20,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [31268373] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 20:40:20,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 20:40:20,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-31 20:40:20,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430958822] [2022-01-31 20:40:20,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 20:40:20,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-31 20:40:20,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 20:40:20,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-31 20:40:20,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-31 20:40:20,314 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 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, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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) [2022-01-31 20:40:20,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 20:40:20,457 INFO L93 Difference]: Finished difference Result 41 states and 57 transitions. [2022-01-31 20:40:20,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-31 20:40:20,460 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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 13 [2022-01-31 20:40:20,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 20:40:20,468 INFO L225 Difference]: With dead ends: 41 [2022-01-31 20:40:20,468 INFO L226 Difference]: Without dead ends: 27 [2022-01-31 20:40:20,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-01-31 20:40:20,475 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 25 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 20:40:20,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 33 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 20:40:20,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-01-31 20:40:20,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2022-01-31 20:40:20,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 20:40:20,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-01-31 20:40:20,518 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 13 [2022-01-31 20:40:20,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 20:40:20,519 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-01-31 20:40:20,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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) [2022-01-31 20:40:20,519 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-01-31 20:40:20,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-31 20:40:20,520 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 20:40:20,520 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 20:40:20,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 20:40:20,521 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 20:40:20,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 20:40:20,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1052577873, now seen corresponding path program 1 times [2022-01-31 20:40:20,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 20:40:20,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47351355] [2022-01-31 20:40:20,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 20:40:41,306 WARN L228 SmtUtils]: Spent 20.67s on a formula simplification that was a NOOP. DAG size: 58 (called from [L 564] de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.jordan.JordanLoopAcceleration.buildAccelerationFormula) [2022-01-31 20:40:41,308 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 20:40:41,309 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 20:40:41,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 20:40:41,318 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (- main_~x~0_5) (- .v_it_1.0) (* 4294967296 (div (+ main_~x~0_5 .v_it_1.0) 4294967296)) 10) 0)) [2022-01-31 20:40:41,320 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (let ((.cse0 (* 2 .v_it_1.0))) (= (+ .cse0 main_~sn~0_5 (* (- 4294967296) (div (+ .cse0 main_~sn~0_5 2) 4294967296)) 2) (let ((.cse1 (* 2 main_~x~0_5))) (+ .cse0 .cse1 (* (- 4294967296) (div (+ .cse0 .cse1 2) 4294967296)) 2)))) [2022-01-31 20:40:41,321 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (= (+ (* 2 .v_it_1.0) main_~sn~0_5 2) 0) [2022-01-31 20:40:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 20:40:41,365 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (- main_~x~0_5) (- .v_it_1.1) (* 4294967296 (div (+ main_~x~0_5 .v_it_1.1) 4294967296)) 10) 0)) [2022-01-31 20:40:41,366 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (let ((.cse0 (* 2 .v_it_1.1))) (= (+ .cse0 main_~sn~0_5 (* (- 4294967296) (div (+ .cse0 main_~sn~0_5 2) 4294967296)) 2) (let ((.cse1 (* 2 main_~x~0_5))) (+ .cse0 .cse1 (* (- 4294967296) (div (+ .cse0 .cse1 2) 4294967296)) 2)))) [2022-01-31 20:40:41,366 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (= (+ (* 2 .v_it_1.1) main_~sn~0_5 2) 0) [2022-01-31 20:40:41,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 20:40:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 20:40:41,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 20:40:42,853 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 20:40:42,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47351355] [2022-01-31 20:40:42,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [47351355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 20:40:42,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 20:40:42,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-31 20:40:42,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877922786] [2022-01-31 20:40:42,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 20:40:42,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-31 20:40:42,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 20:40:42,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-31 20:40:42,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-01-31 20:40:42,855 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 20:40:43,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 20:40:43,587 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2022-01-31 20:40:43,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-31 20:40:43,587 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2022-01-31 20:40:43,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 20:40:43,588 INFO L225 Difference]: With dead ends: 35 [2022-01-31 20:40:43,588 INFO L226 Difference]: Without dead ends: 33 [2022-01-31 20:40:43,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2022-01-31 20:40:43,589 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 15 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 20:40:43,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 79 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 55 Invalid, 0 Unknown, 33 Unchecked, 0.2s Time] [2022-01-31 20:40:43,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-01-31 20:40:43,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2022-01-31 20:40:43,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 20:40:43,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-01-31 20:40:43,600 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 21 [2022-01-31 20:40:43,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 20:40:43,600 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-01-31 20:40:43,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 20:40:43,601 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-01-31 20:40:43,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-31 20:40:43,601 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 20:40:43,602 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 20:40:43,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 20:40:43,602 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 20:40:43,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 20:40:43,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1109836175, now seen corresponding path program 1 times [2022-01-31 20:40:43,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 20:40:43,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1161164188] [2022-01-31 20:40:43,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 20:40:43,793 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 20:40:43,793 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 20:40:43,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 20:40:43,799 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (- main_~x~0_5) (- .v_it_2.0) (* 4294967296 (div (+ main_~x~0_5 .v_it_2.0) 4294967296)) 10) 0)) [2022-01-31 20:40:43,799 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (let ((.cse1 (* 2 .v_it_2.0))) (= (let ((.cse0 (* 2 main_~x~0_5))) (+ .cse0 .cse1 (* (- 4294967296) (div (+ .cse0 .cse1 2) 4294967296)) 2)) (+ .cse1 main_~sn~0_5 (* (- 4294967296) (div (+ .cse1 main_~sn~0_5 2) 4294967296)) 2))) [2022-01-31 20:40:43,800 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (= (+ (* 2 .v_it_2.0) main_~sn~0_5 2) 0) [2022-01-31 20:40:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2022-01-31 20:40:43,823 WARN L127 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2022-01-31 20:40:43,823 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2022-01-31 20:40:43,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 20:40:43,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 20:40:43,829 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-31 20:40:43,830 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 20:40:43,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 08:40:43 BoogieIcfgContainer [2022-01-31 20:40:43,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 20:40:43,837 INFO L158 Benchmark]: Toolchain (without parser) took 24340.63ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 138.6MB in the beginning and 148.8MB in the end (delta: -10.1MB). Peak memory consumption was 28.1MB. Max. memory is 8.0GB. [2022-01-31 20:40:43,837 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 186.6MB. Free memory is still 154.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 20:40:43,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 145.68ms. Allocated memory is still 186.6MB. Free memory was 138.3MB in the beginning and 164.8MB in the end (delta: -26.5MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. [2022-01-31 20:40:43,838 INFO L158 Benchmark]: Boogie Preprocessor took 17.57ms. Allocated memory is still 186.6MB. Free memory was 164.8MB in the beginning and 163.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 20:40:43,838 INFO L158 Benchmark]: RCFGBuilder took 175.82ms. Allocated memory is still 186.6MB. Free memory was 163.2MB in the beginning and 152.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-31 20:40:43,839 INFO L158 Benchmark]: TraceAbstraction took 23997.76ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 152.2MB in the beginning and 148.8MB in the end (delta: 3.5MB). Peak memory consumption was 42.3MB. Max. memory is 8.0GB. [2022-01-31 20:40:43,840 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 186.6MB. Free memory is still 154.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 145.68ms. Allocated memory is still 186.6MB. Free memory was 138.3MB in the beginning and 164.8MB in the end (delta: -26.5MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.57ms. Allocated memory is still 186.6MB. Free memory was 164.8MB in the beginning and 163.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 175.82ms. Allocated memory is still 186.6MB. Free memory was 163.2MB in the beginning and 152.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 23997.76ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 152.2MB in the beginning and 148.8MB in the end (delta: 3.5MB). Peak memory consumption was 42.3MB. 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 - UnprovableResult [Line: 15]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L21] int sn=0; [L22] unsigned int loop1=__VERIFIER_nondet_uint(), n1=__VERIFIER_nondet_uint(); [L22] unsigned int loop1=__VERIFIER_nondet_uint(), n1=__VERIFIER_nondet_uint(); [L23] unsigned int x=0; [L24] COND TRUE 1 [L25] COND TRUE x<10 [L26] sn = sn + (2) [L28] x++ [L29] CALL __VERIFIER_assert(sn==x*(2) || sn == 0) [L14] COND FALSE !(!(cond)) [L29] RET __VERIFIER_assert(sn==x*(2) || sn == 0) [L24] COND TRUE 1 [L25] COND FALSE !(x<10) [L28] x++ [L29] CALL __VERIFIER_assert(sn==x*(2) || sn == 0) [L14] COND TRUE !(cond) [L15] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.0s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 112 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 33 IncrementalHoareTripleChecker+Unchecked, 89 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 120 IncrementalHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 23 mSDtfsCounter, 120 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=2, 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, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 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 could not prove your program: unable to determine feasibility of some traces [2022-01-31 20:40:43,909 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...