/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/float-benchs/bary_diverge.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-02-01 00:14:44,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-01 00:14:44,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-01 00:14:44,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-01 00:14:44,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-01 00:14:44,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-01 00:14:44,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-01 00:14:44,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-01 00:14:44,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-01 00:14:44,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-01 00:14:44,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-01 00:14:44,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-01 00:14:44,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-01 00:14:44,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-01 00:14:44,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-01 00:14:44,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-01 00:14:44,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-01 00:14:44,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-01 00:14:44,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-01 00:14:44,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-01 00:14:44,146 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-01 00:14:44,155 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-01 00:14:44,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-01 00:14:44,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-01 00:14:44,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-01 00:14:44,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-01 00:14:44,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-01 00:14:44,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-01 00:14:44,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-01 00:14:44,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-01 00:14:44,157 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-01 00:14:44,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-01 00:14:44,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-01 00:14:44,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-01 00:14:44,158 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-01 00:14:44,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-01 00:14:44,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:14:44,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-01 00:14:44,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-01 00:14:44,158 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-01 00:14:44,158 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-01 00:14:44,158 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-01 00:14:44,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-01 00:14:44,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-01 00:14:44,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-01 00:14:44,382 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-01 00:14:44,383 INFO L275 PluginConnector]: CDTParser initialized [2022-02-01 00:14:44,384 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/bary_diverge.c [2022-02-01 00:14:44,431 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10a662ddf/9f618b41712f45349a41071ff77e0b0f/FLAG62abac6b0 [2022-02-01 00:14:44,814 INFO L306 CDTParser]: Found 1 translation units. [2022-02-01 00:14:44,815 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/bary_diverge.c [2022-02-01 00:14:44,825 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10a662ddf/9f618b41712f45349a41071ff77e0b0f/FLAG62abac6b0 [2022-02-01 00:14:44,837 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10a662ddf/9f618b41712f45349a41071ff77e0b0f [2022-02-01 00:14:44,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-01 00:14:44,841 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-01 00:14:44,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-01 00:14:44,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-01 00:14:44,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-01 00:14:44,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:14:44" (1/1) ... [2022-02-01 00:14:44,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f5a1cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:14:44, skipping insertion in model container [2022-02-01 00:14:44,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:14:44" (1/1) ... [2022-02-01 00:14:44,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-01 00:14:44,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-01 00:14:45,043 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/bary_diverge.c[632,645] [2022-02-01 00:14:45,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:14:45,074 INFO L203 MainTranslator]: Completed pre-run [2022-02-01 00:14:45,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/bary_diverge.c[632,645] [2022-02-01 00:14:45,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:14:45,109 INFO L208 MainTranslator]: Completed translation [2022-02-01 00:14:45,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:14:45 WrapperNode [2022-02-01 00:14:45,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-01 00:14:45,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-01 00:14:45,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-01 00:14:45,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-01 00:14:45,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:14:45" (1/1) ... [2022-02-01 00:14:45,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:14:45" (1/1) ... [2022-02-01 00:14:45,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:14:45" (1/1) ... [2022-02-01 00:14:45,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:14:45" (1/1) ... [2022-02-01 00:14:45,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:14:45" (1/1) ... [2022-02-01 00:14:45,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:14:45" (1/1) ... [2022-02-01 00:14:45,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:14:45" (1/1) ... [2022-02-01 00:14:45,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-01 00:14:45,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-01 00:14:45,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-01 00:14:45,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-01 00:14:45,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:14:45" (1/1) ... [2022-02-01 00:14:45,157 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:14:45,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-01 00:14:45,176 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) [2022-02-01 00:14:45,198 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 [2022-02-01 00:14:45,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-01 00:14:45,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-01 00:14:45,215 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-01 00:14:45,215 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-01 00:14:45,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-01 00:14:45,215 INFO L138 BoogieDeclarations]: Found implementation of procedure RANDOM_INPUT [2022-02-01 00:14:45,215 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_clock [2022-02-01 00:14:45,215 INFO L138 BoogieDeclarations]: Found implementation of procedure bary [2022-02-01 00:14:45,216 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-01 00:14:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-01 00:14:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-01 00:14:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-01 00:14:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-01 00:14:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2022-02-01 00:14:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-01 00:14:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-01 00:14:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure RANDOM_INPUT [2022-02-01 00:14:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_clock [2022-02-01 00:14:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure bary [2022-02-01 00:14:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-01 00:14:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-01 00:14:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-01 00:14:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-01 00:14:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-01 00:14:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-01 00:14:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-01 00:14:45,296 INFO L234 CfgBuilder]: Building ICFG [2022-02-01 00:14:45,297 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-01 00:14:45,429 INFO L275 CfgBuilder]: Performing block encoding [2022-02-01 00:14:45,434 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-01 00:14:45,434 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-01 00:14:45,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:14:45 BoogieIcfgContainer [2022-02-01 00:14:45,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-01 00:14:45,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-01 00:14:45,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-01 00:14:45,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-01 00:14:45,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.02 12:14:44" (1/3) ... [2022-02-01 00:14:45,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794936eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:14:45, skipping insertion in model container [2022-02-01 00:14:45,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:14:45" (2/3) ... [2022-02-01 00:14:45,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794936eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:14:45, skipping insertion in model container [2022-02-01 00:14:45,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:14:45" (3/3) ... [2022-02-01 00:14:45,453 INFO L111 eAbstractionObserver]: Analyzing ICFG bary_diverge.c [2022-02-01 00:14:45,457 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-01 00:14:45,457 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-01 00:14:45,488 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-01 00:14:45,494 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 [2022-02-01 00:14:45,494 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-01 00:14:45,510 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-02-01 00:14:45,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-01 00:14:45,515 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:14:45,516 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:14:45,516 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:14:45,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:14:45,520 INFO L85 PathProgramCache]: Analyzing trace with hash 518278440, now seen corresponding path program 1 times [2022-02-01 00:14:45,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:14:45,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551694649] [2022-02-01 00:14:45,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:14:45,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:14:45,584 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:14:45,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:14:45,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:14:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:14:45,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-01 00:14:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:14:45,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-01 00:14:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:14:45,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-02-01 00:14:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:14:45,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-01 00:14:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:14:45,813 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-01 00:14:45,815 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:14:45,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [551694649] [2022-02-01 00:14:45,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [551694649] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:14:45,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:14:45,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-01 00:14:45,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393278890] [2022-02-01 00:14:45,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:14:45,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-01 00:14:45,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:14:45,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-01 00:14:45,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-01 00:14:45,847 INFO L87 Difference]: Start difference. First operand has 47 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-02-01 00:14:45,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:14:45,979 INFO L93 Difference]: Finished difference Result 88 states and 114 transitions. [2022-02-01 00:14:45,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-01 00:14:45,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2022-02-01 00:14:45,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:14:45,992 INFO L225 Difference]: With dead ends: 88 [2022-02-01 00:14:45,992 INFO L226 Difference]: Without dead ends: 43 [2022-02-01 00:14:45,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-01 00:14:45,999 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 13 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:14:46,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 55 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-01 00:14:46,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-02-01 00:14:46,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2022-02-01 00:14:46,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-02-01 00:14:46,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2022-02-01 00:14:46,029 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 36 [2022-02-01 00:14:46,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:14:46,029 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2022-02-01 00:14:46,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-02-01 00:14:46,029 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2022-02-01 00:14:46,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-01 00:14:46,031 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:14:46,031 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:14:46,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-01 00:14:46,031 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:14:46,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:14:46,032 INFO L85 PathProgramCache]: Analyzing trace with hash -699545624, now seen corresponding path program 1 times [2022-02-01 00:14:46,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:14:46,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13809198] [2022-02-01 00:14:46,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:14:46,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:14:46,035 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:14:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:14:46,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:14:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:14:46,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-01 00:14:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:14:46,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-01 00:14:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:14:46,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-02-01 00:14:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:14:46,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-01 00:14:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:14:46,113 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-01 00:14:46,114 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:14:46,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13809198] [2022-02-01 00:14:46,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [13809198] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:14:46,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:14:46,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:14:46,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060262302] [2022-02-01 00:14:46,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:14:46,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:14:46,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:14:46,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:14:46,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:14:46,116 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-02-01 00:14:46,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:14:46,239 INFO L93 Difference]: Finished difference Result 100 states and 116 transitions. [2022-02-01 00:14:46,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:14:46,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2022-02-01 00:14:46,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:14:46,245 INFO L225 Difference]: With dead ends: 100 [2022-02-01 00:14:46,248 INFO L226 Difference]: Without dead ends: 68 [2022-02-01 00:14:46,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:14:46,257 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 45 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:14:46,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 63 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-01 00:14:46,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-02-01 00:14:46,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 63. [2022-02-01 00:14:46,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 37 states have (on average 1.135135135135135) internal successors, (42), 38 states have internal predecessors, (42), 15 states have call successors, (15), 11 states have call predecessors, (15), 10 states have return successors, (15), 13 states have call predecessors, (15), 14 states have call successors, (15) [2022-02-01 00:14:46,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 72 transitions. [2022-02-01 00:14:46,273 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 72 transitions. Word has length 36 [2022-02-01 00:14:46,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:14:46,274 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 72 transitions. [2022-02-01 00:14:46,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-02-01 00:14:46,274 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 72 transitions. [2022-02-01 00:14:46,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-01 00:14:46,275 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:14:46,275 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:14:46,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-01 00:14:46,275 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:14:46,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:14:46,275 INFO L85 PathProgramCache]: Analyzing trace with hash -701392666, now seen corresponding path program 1 times [2022-02-01 00:14:46,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:14:46,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [594539211] [2022-02-01 00:14:46,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:14:46,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:14:46,278 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:14:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:14:46,295 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-01 00:14:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:14:46,322 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-01 00:14:46,323 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-01 00:14:46,325 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-01 00:14:46,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-01 00:14:46,329 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-01 00:14:46,331 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-01 00:14:46,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.02 12:14:46 BoogieIcfgContainer [2022-02-01 00:14:46,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-01 00:14:46,341 INFO L158 Benchmark]: Toolchain (without parser) took 1500.60ms. Allocated memory was 181.4MB in the beginning and 320.9MB in the end (delta: 139.5MB). Free memory was 127.4MB in the beginning and 217.9MB in the end (delta: -90.6MB). Peak memory consumption was 48.6MB. Max. memory is 8.0GB. [2022-02-01 00:14:46,342 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 181.4MB. Free memory is still 143.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-01 00:14:46,342 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.53ms. Allocated memory was 181.4MB in the beginning and 320.9MB in the end (delta: 139.5MB). Free memory was 127.1MB in the beginning and 292.4MB in the end (delta: -165.3MB). Peak memory consumption was 7.5MB. Max. memory is 8.0GB. [2022-02-01 00:14:46,342 INFO L158 Benchmark]: Boogie Preprocessor took 38.41ms. Allocated memory is still 320.9MB. Free memory was 292.4MB in the beginning and 290.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-01 00:14:46,342 INFO L158 Benchmark]: RCFGBuilder took 291.25ms. Allocated memory is still 320.9MB. Free memory was 290.8MB in the beginning and 278.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-01 00:14:46,343 INFO L158 Benchmark]: TraceAbstraction took 898.82ms. Allocated memory is still 320.9MB. Free memory was 278.2MB in the beginning and 217.9MB in the end (delta: 60.3MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. [2022-02-01 00:14:46,344 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 181.4MB. Free memory is still 143.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 266.53ms. Allocated memory was 181.4MB in the beginning and 320.9MB in the end (delta: 139.5MB). Free memory was 127.1MB in the beginning and 292.4MB in the end (delta: -165.3MB). Peak memory consumption was 7.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.41ms. Allocated memory is still 320.9MB. Free memory was 292.4MB in the beginning and 290.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 291.25ms. Allocated memory is still 320.9MB. Free memory was 290.8MB in the beginning and 278.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 898.82ms. Allocated memory is still 320.9MB. Free memory was 278.2MB in the beginning and 217.9MB in the end (delta: 60.3MB). Peak memory consumption was 59.8MB. 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: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 50. Possible FailurePath: [L19] BOOLEAN INIT; [L20] float C1, I; [L34] static float X,Y,Z; [L55] int i; [L57] INIT = TRUE [L58] CALL, EXPR RANDOM_INPUT() [L24] float x; [L25] x = __VERIFIER_nondet_float() [L26] CALL assume_abort_if_not(x >= -1.f && x <= 1.f) [L12] COND FALSE !(!cond) [L26] RET assume_abort_if_not(x >= -1.f && x <= 1.f) [L27] return x; [L58] RET, EXPR RANDOM_INPUT() [L58] C1 = RANDOM_INPUT() [L59] CALL, EXPR RANDOM_INPUT() [L24] float x; [L25] x = __VERIFIER_nondet_float() [L26] CALL assume_abort_if_not(x >= -1.f && x <= 1.f) [L12] COND FALSE !(!cond) [L26] RET assume_abort_if_not(x >= -1.f && x <= 1.f) [L27] return x; [L59] RET, EXPR RANDOM_INPUT() [L59] I = RANDOM_INPUT() [L61] i = 0 [L61] COND TRUE i < 3600000 [L62] CALL bary() [L36] COND TRUE C1 > 0.f [L37] Z = Y [L38] Y = X [L41] COND TRUE INIT == TRUE [L42] X = I [L43] Y = I [L44] Z = I [L50] CALL __VERIFIER_assert(X >= -5.f && X <= 5.f) [L14] COND TRUE !(cond) [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58 mSDsluCounter, 118 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 96 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=2, InterpolantAutomatonStates: 8, 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 [2022-02-01 00:14:46,370 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...