/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/float-benchs/bary_diverge.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:52:44,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:52:44,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:52:44,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 22:52:44,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 22:52:44,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 22:52:44,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 22:52:44,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 22:52:44,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 22:52:44,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 22:52:44,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 22:52:44,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 22:52:44,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:52:44,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:52:44,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:52:44,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:52:44,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:52:44,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:52:44,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:52:44,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:52:44,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:52:45,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:52:45,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:52:45,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:52:45,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 22:52:45,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:52:45,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:52:45,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:52:45,029 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 22:52:45,035 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:52:45,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:52:45,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:52:45,036 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:52:45,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:52:45,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:52:45,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:52:45,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:52:45,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:52:45,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:52:45,036 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:52:45,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:52:45,037 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:52:45,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:52:45,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:52:45,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:52:45,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:52:45,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:52:45,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:52:45,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:52:45,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:52:45,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:52:45,037 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:52:45,037 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:52:45,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:52:45,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:52:45,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:52:45,211 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:52:45,212 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:52:45,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/bary_diverge.c [2022-01-31 22:52:45,269 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae6f4a056/4d94733167034b60a5b4f965fb2450c0/FLAGdb0204e47 [2022-01-31 22:52:45,568 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:52:45,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/bary_diverge.c [2022-01-31 22:52:45,578 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae6f4a056/4d94733167034b60a5b4f965fb2450c0/FLAGdb0204e47 [2022-01-31 22:52:46,000 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae6f4a056/4d94733167034b60a5b4f965fb2450c0 [2022-01-31 22:52:46,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:52:46,004 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:52:46,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:52:46,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:52:46,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:52:46,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:52:46" (1/1) ... [2022-01-31 22:52:46,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e90d2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:46, skipping insertion in model container [2022-01-31 22:52:46,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:52:46" (1/1) ... [2022-01-31 22:52:46,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:52:46,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:52:46,146 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] [2022-01-31 22:52:46,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:52:46,176 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:52:46,193 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] [2022-01-31 22:52:46,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:52:46,216 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:52:46,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:46 WrapperNode [2022-01-31 22:52:46,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:52:46,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:52:46,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:52:46,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:52:46,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:46" (1/1) ... [2022-01-31 22:52:46,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:46" (1/1) ... [2022-01-31 22:52:46,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:46" (1/1) ... [2022-01-31 22:52:46,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:46" (1/1) ... [2022-01-31 22:52:46,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:46" (1/1) ... [2022-01-31 22:52:46,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:46" (1/1) ... [2022-01-31 22:52:46,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:46" (1/1) ... [2022-01-31 22:52:46,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:52:46,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:52:46,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:52:46,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:52:46,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:46" (1/1) ... [2022-01-31 22:52:46,259 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:52:46,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:52:46,286 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 22:52:46,287 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 22:52:46,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:52:46,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:52:46,312 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:52:46,312 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-31 22:52:46,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-31 22:52:46,312 INFO L138 BoogieDeclarations]: Found implementation of procedure RANDOM_INPUT [2022-01-31 22:52:46,312 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_clock [2022-01-31 22:52:46,312 INFO L138 BoogieDeclarations]: Found implementation of procedure bary [2022-01-31 22:52:46,312 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:52:46,312 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:52:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:52:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:52:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:52:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2022-01-31 22:52:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-31 22:52:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 22:52:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure RANDOM_INPUT [2022-01-31 22:52:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_clock [2022-01-31 22:52:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure bary [2022-01-31 22:52:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:52:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:52:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:52:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:52:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:52:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:52:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:52:46,364 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:52:46,365 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:52:46,459 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:52:46,465 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:52:46,465 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 22:52:46,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:52:46 BoogieIcfgContainer [2022-01-31 22:52:46,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:52:46,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:52:46,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:52:46,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:52:46,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:52:46" (1/3) ... [2022-01-31 22:52:46,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12adcb49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:52:46, skipping insertion in model container [2022-01-31 22:52:46,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:46" (2/3) ... [2022-01-31 22:52:46,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12adcb49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:52:46, skipping insertion in model container [2022-01-31 22:52:46,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:52:46" (3/3) ... [2022-01-31 22:52:46,485 INFO L111 eAbstractionObserver]: Analyzing ICFG bary_diverge.c [2022-01-31 22:52:46,488 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:52:46,489 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:52:46,523 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:52:46,529 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 22:52:46,529 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:52:46,539 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) [2022-01-31 22:52:46,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-31 22:52:46,562 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:52:46,562 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] [2022-01-31 22:52:46,563 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:52:46,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:52:46,567 INFO L85 PathProgramCache]: Analyzing trace with hash 518278440, now seen corresponding path program 1 times [2022-01-31 22:52:46,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:52:46,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [516847961] [2022-01-31 22:52:46,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:52:46,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:52:46,646 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:52:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:52:46,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:52:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:52:46,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 22:52:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:52:46,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-01-31 22:52:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:52:46,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-01-31 22:52:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:52:46,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-01-31 22:52:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:52:46,904 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-31 22:52:46,905 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:52:46,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [516847961] [2022-01-31 22:52:46,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [516847961] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:52:46,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:52:46,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-31 22:52:46,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136642395] [2022-01-31 22:52:46,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:52:46,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 22:52:46,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:52:46,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 22:52:46,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 22:52:46,946 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) [2022-01-31 22:52:47,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:52:47,096 INFO L93 Difference]: Finished difference Result 88 states and 114 transitions. [2022-01-31 22:52:47,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 22:52:47,109 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 [2022-01-31 22:52:47,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:52:47,114 INFO L225 Difference]: With dead ends: 88 [2022-01-31 22:52:47,115 INFO L226 Difference]: Without dead ends: 43 [2022-01-31 22:52:47,117 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 [2022-01-31 22:52:47,119 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 [2022-01-31 22:52:47,120 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] [2022-01-31 22:52:47,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-01-31 22:52:47,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2022-01-31 22:52:47,161 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) [2022-01-31 22:52:47,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2022-01-31 22:52:47,163 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 36 [2022-01-31 22:52:47,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:52:47,164 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2022-01-31 22:52:47,164 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) [2022-01-31 22:52:47,164 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2022-01-31 22:52:47,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-31 22:52:47,166 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:52:47,166 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] [2022-01-31 22:52:47,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:52:47,167 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:52:47,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:52:47,167 INFO L85 PathProgramCache]: Analyzing trace with hash -699545624, now seen corresponding path program 1 times [2022-01-31 22:52:47,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:52:47,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657258201] [2022-01-31 22:52:47,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:52:47,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:52:47,171 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:52:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:52:47,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:52:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:52:47,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 22:52:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:52:47,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-01-31 22:52:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:52:47,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-01-31 22:52:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:52:47,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-01-31 22:52:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:52:47,257 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-31 22:52:47,257 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:52:47,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657258201] [2022-01-31 22:52:47,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [657258201] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:52:47,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:52:47,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:52:47,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889455243] [2022-01-31 22:52:47,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:52:47,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:52:47,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:52:47,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:52:47,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:52:47,260 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) [2022-01-31 22:52:47,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:52:47,428 INFO L93 Difference]: Finished difference Result 100 states and 116 transitions. [2022-01-31 22:52:47,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:52:47,429 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 [2022-01-31 22:52:47,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:52:47,431 INFO L225 Difference]: With dead ends: 100 [2022-01-31 22:52:47,431 INFO L226 Difference]: Without dead ends: 68 [2022-01-31 22:52:47,431 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 [2022-01-31 22:52:47,432 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 [2022-01-31 22:52:47,433 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] [2022-01-31 22:52:47,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-01-31 22:52:47,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 63. [2022-01-31 22:52:47,446 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) [2022-01-31 22:52:47,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 72 transitions. [2022-01-31 22:52:47,447 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 72 transitions. Word has length 36 [2022-01-31 22:52:47,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:52:47,448 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 72 transitions. [2022-01-31 22:52:47,448 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) [2022-01-31 22:52:47,448 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 72 transitions. [2022-01-31 22:52:47,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-31 22:52:47,449 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:52:47,449 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] [2022-01-31 22:52:47,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:52:47,449 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:52:47,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:52:47,449 INFO L85 PathProgramCache]: Analyzing trace with hash -701392666, now seen corresponding path program 1 times [2022-01-31 22:52:47,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:52:47,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468299788] [2022-01-31 22:52:47,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:52:47,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:52:47,456 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:52:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:52:47,492 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 22:52:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:52:47,524 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 22:52:47,524 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 22:52:47,526 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 22:52:47,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 22:52:47,530 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-31 22:52:47,532 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 22:52:47,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:52:47 BoogieIcfgContainer [2022-01-31 22:52:47,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 22:52:47,541 INFO L158 Benchmark]: Toolchain (without parser) took 1537.34ms. Allocated memory was 177.2MB in the beginning and 282.1MB in the end (delta: 104.9MB). Free memory was 125.2MB in the beginning and 181.1MB in the end (delta: -55.9MB). Peak memory consumption was 49.0MB. Max. memory is 8.0GB. [2022-01-31 22:52:47,541 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory is still 141.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 22:52:47,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.01ms. Allocated memory was 177.2MB in the beginning and 282.1MB in the end (delta: 104.9MB). Free memory was 125.0MB in the beginning and 255.6MB in the end (delta: -130.6MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. [2022-01-31 22:52:47,542 INFO L158 Benchmark]: Boogie Preprocessor took 34.33ms. Allocated memory is still 282.1MB. Free memory was 255.6MB in the beginning and 254.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-31 22:52:47,542 INFO L158 Benchmark]: RCFGBuilder took 213.69ms. Allocated memory is still 282.1MB. Free memory was 254.0MB in the beginning and 241.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-31 22:52:47,543 INFO L158 Benchmark]: TraceAbstraction took 1072.49ms. Allocated memory is still 282.1MB. Free memory was 240.9MB in the beginning and 181.1MB in the end (delta: 59.8MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. [2022-01-31 22:52:47,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory is still 141.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 211.01ms. Allocated memory was 177.2MB in the beginning and 282.1MB in the end (delta: 104.9MB). Free memory was 125.0MB in the beginning and 255.6MB in the end (delta: -130.6MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.33ms. Allocated memory is still 282.1MB. Free memory was 255.6MB in the beginning and 254.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 213.69ms. Allocated memory is still 282.1MB. Free memory was 254.0MB in the beginning and 241.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1072.49ms. Allocated memory is still 282.1MB. Free memory was 240.9MB in the beginning and 181.1MB in the end (delta: 59.8MB). 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: 1.0s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, 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, 0.2s 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, 0.1s 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 [2022-01-31 22:52:47,577 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...