/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/loops/veris.c_sendmail_tTflag_arr_one_loop.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 02:47:05,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 02:47:05,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 02:47:05,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-24 02:47:05,552 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-24 02:47:05,558 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 02:47:05,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 02:47:05,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 02:47:05,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 02:47:05,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 02:47:05,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 02:47:05,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 02:47:05,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 02:47:05,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 02:47:05,559 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 02:47:05,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 02:47:05,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 02:47:05,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 02:47:05,560 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-24 02:47:05,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 02:47:05,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 02:47:05,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 02:47:05,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-24 02:47:05,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 02:47:05,561 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-24 02:47:05,561 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 02:47:05,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 02:47:05,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 02:47:05,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 02:47:05,753 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 02:47:05,753 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 02:47:05,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c [2022-02-24 02:47:05,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19bc0a91d/2b053e32821c46039e4bd41dfa7d669e/FLAG91b077d66 [2022-02-24 02:47:06,159 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 02:47:06,159 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c [2022-02-24 02:47:06,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19bc0a91d/2b053e32821c46039e4bd41dfa7d669e/FLAG91b077d66 [2022-02-24 02:47:06,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19bc0a91d/2b053e32821c46039e4bd41dfa7d669e [2022-02-24 02:47:06,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 02:47:06,184 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-24 02:47:06,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 02:47:06,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 02:47:06,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 02:47:06,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 02:47:06" (1/1) ... [2022-02-24 02:47:06,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243d0b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:47:06, skipping insertion in model container [2022-02-24 02:47:06,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 02:47:06" (1/1) ... [2022-02-24 02:47:06,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 02:47:06,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 02:47:06,339 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/veris.c_sendmail_tTflag_arr_one_loop.c[386,399] [2022-02-24 02:47:06,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 02:47:06,363 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 02:47:06,370 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/veris.c_sendmail_tTflag_arr_one_loop.c[386,399] [2022-02-24 02:47:06,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 02:47:06,382 INFO L208 MainTranslator]: Completed translation [2022-02-24 02:47:06,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:47:06 WrapperNode [2022-02-24 02:47:06,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 02:47:06,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 02:47:06,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 02:47:06,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 02:47:06,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:47:06" (1/1) ... [2022-02-24 02:47:06,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:47:06" (1/1) ... [2022-02-24 02:47:06,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:47:06" (1/1) ... [2022-02-24 02:47:06,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:47:06" (1/1) ... [2022-02-24 02:47:06,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:47:06" (1/1) ... [2022-02-24 02:47:06,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:47:06" (1/1) ... [2022-02-24 02:47:06,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:47:06" (1/1) ... [2022-02-24 02:47:06,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 02:47:06,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 02:47:06,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 02:47:06,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 02:47:06,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:47:06" (1/1) ... [2022-02-24 02:47:06,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 02:47:06,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 02:47:06,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-24 02:47:06,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-24 02:47:06,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 02:47:06,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 02:47:06,471 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 02:47:06,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-24 02:47:06,471 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 02:47:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 02:47:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 02:47:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 02:47:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 02:47:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-24 02:47:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-24 02:47:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 02:47:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-24 02:47:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 02:47:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 02:47:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 02:47:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 02:47:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 02:47:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 02:47:06,522 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 02:47:06,523 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 02:47:06,647 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 02:47:06,651 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 02:47:06,651 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-24 02:47:06,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 02:47:06 BoogieIcfgContainer [2022-02-24 02:47:06,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 02:47:06,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 02:47:06,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 02:47:06,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 02:47:06,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 02:47:06" (1/3) ... [2022-02-24 02:47:06,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa4142e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 02:47:06, skipping insertion in model container [2022-02-24 02:47:06,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:47:06" (2/3) ... [2022-02-24 02:47:06,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa4142e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 02:47:06, skipping insertion in model container [2022-02-24 02:47:06,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 02:47:06" (3/3) ... [2022-02-24 02:47:06,672 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_sendmail_tTflag_arr_one_loop.c [2022-02-24 02:47:06,675 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-24 02:47:06,676 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 02:47:06,705 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 02:47:06,710 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 [2022-02-24 02:47:06,711 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 02:47:06,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-24 02:47:06,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-24 02:47:06,727 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 02:47:06,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 02:47:06,728 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 02:47:06,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 02:47:06,732 INFO L85 PathProgramCache]: Analyzing trace with hash -79096073, now seen corresponding path program 1 times [2022-02-24 02:47:06,739 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 02:47:06,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627388117] [2022-02-24 02:47:06,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 02:47:06,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 02:47:06,784 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 02:47:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 02:47:06,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 02:47:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 02:47:06,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 02:47:06,951 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 02:47:06,952 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627388117] [2022-02-24 02:47:06,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1627388117] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 02:47:06,954 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 02:47:06,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 02:47:06,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662176195] [2022-02-24 02:47:06,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 02:47:06,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 02:47:06,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 02:47:06,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 02:47:06,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 02:47:06,985 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 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 5 states, 5 states have (on average 1.8) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 02:47:07,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 02:47:07,078 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2022-02-24 02:47:07,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 02:47:07,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 3 states have internal predecessors, (9), 1 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 [2022-02-24 02:47:07,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 02:47:07,085 INFO L225 Difference]: With dead ends: 34 [2022-02-24 02:47:07,085 INFO L226 Difference]: Without dead ends: 0 [2022-02-24 02:47:07,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-02-24 02:47:07,094 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-24 02:47:07,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 33 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-24 02:47:07,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-24 02:47:07,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-24 02:47:07,110 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) [2022-02-24 02:47:07,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-24 02:47:07,112 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-02-24 02:47:07,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 02:47:07,112 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-24 02:47:07,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 02:47:07,112 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-24 02:47:07,112 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-24 02:47:07,115 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-24 02:47:07,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 02:47:07,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-02-24 02:47:07,180 INFO L858 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2022-02-24 02:47:07,180 INFO L858 garLoopResultBuilder]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2022-02-24 02:47:07,180 INFO L858 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2022-02-24 02:47:07,180 INFO L861 garLoopResultBuilder]: At program point L29-2(lines 29 35) the Hoare annotation is: true [2022-02-24 02:47:07,180 INFO L861 garLoopResultBuilder]: At program point L29-3(lines 29 35) the Hoare annotation is: true [2022-02-24 02:47:07,180 INFO L861 garLoopResultBuilder]: At program point mainEXIT(lines 12 39) the Hoare annotation is: true [2022-02-24 02:47:07,181 INFO L861 garLoopResultBuilder]: At program point mainFINAL(lines 12 39) the Hoare annotation is: true [2022-02-24 02:47:07,181 INFO L861 garLoopResultBuilder]: At program point mainENTRY(lines 12 39) the Hoare annotation is: true [2022-02-24 02:47:07,181 INFO L861 garLoopResultBuilder]: At program point L20-2(lines 20 22) the Hoare annotation is: true [2022-02-24 02:47:07,182 INFO L861 garLoopResultBuilder]: At program point L20-3(lines 20 22) the Hoare annotation is: true [2022-02-24 02:47:07,182 INFO L861 garLoopResultBuilder]: At program point L20-4(lines 20 22) the Hoare annotation is: true [2022-02-24 02:47:07,182 INFO L861 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: true [2022-02-24 02:47:07,182 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-02-24 02:47:07,182 INFO L854 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-02-24 02:47:07,183 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-02-24 02:47:07,183 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-02-24 02:47:07,183 INFO L861 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-02-24 02:47:07,183 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-02-24 02:47:07,184 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-02-24 02:47:07,184 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2022-02-24 02:47:07,184 INFO L854 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 6 11) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (= __VERIFIER_assert_~cond 1)) [2022-02-24 02:47:07,185 INFO L854 garLoopResultBuilder]: At program point L8(line 8) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 1)) [2022-02-24 02:47:07,187 INFO L854 garLoopResultBuilder]: At program point L7(lines 7 9) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (= __VERIFIER_assert_~cond 1)) [2022-02-24 02:47:07,187 INFO L854 garLoopResultBuilder]: At program point L7-2(lines 6 11) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (= __VERIFIER_assert_~cond 1)) [2022-02-24 02:47:07,187 INFO L854 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 1)) [2022-02-24 02:47:07,190 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-24 02:47:07,191 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-24 02:47:07,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 02:47:07 BoogieIcfgContainer [2022-02-24 02:47:07,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-24 02:47:07,201 INFO L158 Benchmark]: Toolchain (without parser) took 1016.59ms. Allocated memory is still 226.5MB. Free memory was 175.8MB in the beginning and 160.6MB in the end (delta: 15.1MB). Peak memory consumption was 14.5MB. Max. memory is 8.0GB. [2022-02-24 02:47:07,201 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 226.5MB. Free memory is still 192.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-24 02:47:07,202 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.83ms. Allocated memory is still 226.5MB. Free memory was 175.5MB in the beginning and 202.7MB in the end (delta: -27.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-24 02:47:07,202 INFO L158 Benchmark]: Boogie Preprocessor took 26.17ms. Allocated memory is still 226.5MB. Free memory was 202.7MB in the beginning and 201.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-24 02:47:07,202 INFO L158 Benchmark]: RCFGBuilder took 241.93ms. Allocated memory is still 226.5MB. Free memory was 201.1MB in the beginning and 190.9MB in the end (delta: 10.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-24 02:47:07,202 INFO L158 Benchmark]: TraceAbstraction took 547.36ms. Allocated memory is still 226.5MB. Free memory was 190.3MB in the beginning and 160.6MB in the end (delta: 29.7MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-02-24 02:47:07,204 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 226.5MB. Free memory is still 192.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 196.83ms. Allocated memory is still 226.5MB. Free memory was 175.5MB in the beginning and 202.7MB in the end (delta: -27.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.17ms. Allocated memory is still 226.5MB. Free memory was 202.7MB in the beginning and 201.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 241.93ms. Allocated memory is still 226.5MB. Free memory was 201.1MB in the beginning and 190.9MB in the end (delta: 10.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 547.36ms. Allocated memory is still 226.5MB. Free memory was 190.3MB in the beginning and 160.6MB in the end (delta: 29.7MB). Peak memory consumption was 29.4MB. 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: 8]: 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 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 18 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 28 PreInvPairs, 38 NumberOfFragments, 55 HoareAnnotationTreeSize, 28 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 22 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s 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: 29]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 12]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: !(\old(cond) == 1) || cond == 1 RESULT: Ultimate proved your program to be correct! [2022-02-24 02:47:07,233 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...