/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/filter1.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-02-01 00:15:09,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-01 00:15:09,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-01 00:15:09,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-01 00:15:09,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-01 00:15:09,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-01 00:15:09,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-01 00:15:09,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-01 00:15:09,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-01 00:15:09,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-01 00:15:09,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-01 00:15:09,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-01 00:15:09,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-01 00:15:09,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-01 00:15:09,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-01 00:15:09,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-01 00:15:09,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-01 00:15:09,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-01 00:15:09,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-01 00:15:09,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-01 00:15:09,128 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 00:15:09,133 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-01 00:15:09,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-01 00:15:09,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-01 00:15:09,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-01 00:15:09,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-01 00:15:09,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-01 00:15:09,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-01 00:15:09,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-01 00:15:09,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-01 00:15:09,135 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-01 00:15:09,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-01 00:15:09,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-01 00:15:09,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-01 00:15:09,135 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-01 00:15:09,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-01 00:15:09,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:15:09,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-01 00:15:09,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-01 00:15:09,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-01 00:15:09,136 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-01 00:15:09,136 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-01 00:15:09,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-01 00:15:09,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-01 00:15:09,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-01 00:15:09,379 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-01 00:15:09,381 INFO L275 PluginConnector]: CDTParser initialized [2022-02-01 00:15:09,382 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/filter1.c.v+nlh-reducer.c [2022-02-01 00:15:09,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f91c0058/2501b7017e2548a5abe657c51fccbc32/FLAGa4e338e45 [2022-02-01 00:15:09,888 INFO L306 CDTParser]: Found 1 translation units. [2022-02-01 00:15:09,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/filter1.c.v+nlh-reducer.c [2022-02-01 00:15:09,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f91c0058/2501b7017e2548a5abe657c51fccbc32/FLAGa4e338e45 [2022-02-01 00:15:10,261 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f91c0058/2501b7017e2548a5abe657c51fccbc32 [2022-02-01 00:15:10,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-01 00:15:10,264 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-01 00:15:10,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-01 00:15:10,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-01 00:15:10,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-01 00:15:10,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:15:10" (1/1) ... [2022-02-01 00:15:10,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@de56b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:15:10, skipping insertion in model container [2022-02-01 00:15:10,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:15:10" (1/1) ... [2022-02-01 00:15:10,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-01 00:15:10,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-01 00:15:10,622 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/filter1.c.v+nlh-reducer.c[1372,1385] [2022-02-01 00:15:10,653 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/filter1.c.v+nlh-reducer.c[2411,2424] [2022-02-01 00:15:10,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:15:10,672 INFO L203 MainTranslator]: Completed pre-run [2022-02-01 00:15:10,749 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/filter1.c.v+nlh-reducer.c[1372,1385] [2022-02-01 00:15:10,773 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/filter1.c.v+nlh-reducer.c[2411,2424] [2022-02-01 00:15:10,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:15:10,791 INFO L208 MainTranslator]: Completed translation [2022-02-01 00:15:10,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:15:10 WrapperNode [2022-02-01 00:15:10,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-01 00:15:10,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-01 00:15:10,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-01 00:15:10,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-01 00:15:10,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:15:10" (1/1) ... [2022-02-01 00:15:10,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:15:10" (1/1) ... [2022-02-01 00:15:10,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:15:10" (1/1) ... [2022-02-01 00:15:10,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:15:10" (1/1) ... [2022-02-01 00:15:10,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:15:10" (1/1) ... [2022-02-01 00:15:10,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:15:10" (1/1) ... [2022-02-01 00:15:10,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:15:10" (1/1) ... [2022-02-01 00:15:10,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-01 00:15:10,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-01 00:15:10,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-01 00:15:10,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-01 00:15:10,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:15:10" (1/1) ... [2022-02-01 00:15:10,873 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:15:10,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-01 00:15:10,913 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 00:15:10,937 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 00:15:10,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-01 00:15:10,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-01 00:15:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-01 00:15:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-01 00:15:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-01 00:15:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-01 00:15:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-01 00:15:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-01 00:15:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-01 00:15:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-01 00:15:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2022-02-01 00:15:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-01 00:15:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-01 00:15:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-01 00:15:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-01 00:15:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-01 00:15:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-01 00:15:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-01 00:15:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-01 00:15:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-01 00:15:11,063 INFO L234 CfgBuilder]: Building ICFG [2022-02-01 00:15:11,064 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-01 00:15:11,297 INFO L275 CfgBuilder]: Performing block encoding [2022-02-01 00:15:11,301 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-01 00:15:11,301 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-01 00:15:11,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:15:11 BoogieIcfgContainer [2022-02-01 00:15:11,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-01 00:15:11,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-01 00:15:11,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-01 00:15:11,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-01 00:15:11,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.02 12:15:10" (1/3) ... [2022-02-01 00:15:11,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627610b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:15:11, skipping insertion in model container [2022-02-01 00:15:11,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:15:10" (2/3) ... [2022-02-01 00:15:11,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627610b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:15:11, skipping insertion in model container [2022-02-01 00:15:11,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:15:11" (3/3) ... [2022-02-01 00:15:11,337 INFO L111 eAbstractionObserver]: Analyzing ICFG filter1.c.v+nlh-reducer.c [2022-02-01 00:15:11,349 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-01 00:15:11,349 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-01 00:15:11,423 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-01 00:15:11,428 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 00:15:11,428 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-01 00:15:11,451 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 32 states have (on average 1.5625) internal successors, (50), 34 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-01 00:15:11,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-02-01 00:15:11,470 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:15:11,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:15:11,471 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:15:11,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:15:11,475 INFO L85 PathProgramCache]: Analyzing trace with hash 62195571, now seen corresponding path program 1 times [2022-02-01 00:15:11,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:15:11,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979199298] [2022-02-01 00:15:11,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:15:11,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:15:11,534 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:15:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:15:11,609 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-01 00:15:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:15:11,671 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-01 00:15:11,673 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-01 00:15:11,676 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-02-01 00:15:11,678 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-01 00:15:11,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-01 00:15:11,682 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-01 00:15:11,685 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-01 00:15:11,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.02 12:15:11 BoogieIcfgContainer [2022-02-01 00:15:11,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-01 00:15:11,700 INFO L158 Benchmark]: Toolchain (without parser) took 1435.40ms. Allocated memory was 170.9MB in the beginning and 246.4MB in the end (delta: 75.5MB). Free memory was 115.7MB in the beginning and 190.8MB in the end (delta: -75.1MB). Peak memory consumption was 1.2MB. Max. memory is 8.0GB. [2022-02-01 00:15:11,700 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 170.9MB. Free memory is still 131.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-01 00:15:11,701 INFO L158 Benchmark]: CACSL2BoogieTranslator took 530.16ms. Allocated memory was 170.9MB in the beginning and 246.4MB in the end (delta: 75.5MB). Free memory was 115.6MB in the beginning and 220.2MB in the end (delta: -104.6MB). Peak memory consumption was 14.2MB. Max. memory is 8.0GB. [2022-02-01 00:15:11,702 INFO L158 Benchmark]: Boogie Preprocessor took 46.34ms. Allocated memory is still 246.4MB. Free memory was 220.2MB in the beginning and 218.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-01 00:15:11,706 INFO L158 Benchmark]: RCFGBuilder took 452.60ms. Allocated memory is still 246.4MB. Free memory was 218.6MB in the beginning and 206.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-01 00:15:11,707 INFO L158 Benchmark]: TraceAbstraction took 384.85ms. Allocated memory is still 246.4MB. Free memory was 205.5MB in the beginning and 190.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-02-01 00:15:11,711 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 170.9MB. Free memory is still 131.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 530.16ms. Allocated memory was 170.9MB in the beginning and 246.4MB in the end (delta: 75.5MB). Free memory was 115.6MB in the beginning and 220.2MB in the end (delta: -104.6MB). Peak memory consumption was 14.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.34ms. Allocated memory is still 246.4MB. Free memory was 220.2MB in the beginning and 218.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 452.60ms. Allocated memory is still 246.4MB. Free memory was 218.6MB in the beginning and 206.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 384.85ms. Allocated memory is still 246.4MB. Free memory was 205.5MB in the beginning and 190.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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: 59]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 46, overapproximation of to_real at line 24, overapproximation of someBinaryArithmeticDOUBLEoperation at line 177. Possible FailurePath: [L1] int __return_main; [L13] int __tmp_129_0; [L14] int __tmp_129_1; [L15] int __tmp_129_2; [L16] int __tmp_112_0; [L17] int __return_134; [L20] double main__E0; [L21] double main__E1; [L22] double main__S; [L23] int main__i; [L24] main__E1 = 0 [L25] main__S = 0 [L26] main__i = 0 [L27] COND TRUE main__i <= 1000000 [L29] main__E0 = __VERIFIER_nondet_double() [L30] int main____CPAchecker_TMP_0; [L31] COND TRUE main__E0 >= -1.0 [L33] COND TRUE main__E0 <= 1.0 [L35] main____CPAchecker_TMP_0 = 1 [L36] COND TRUE main____CPAchecker_TMP_0 != 0 [L38] int main____CPAchecker_TMP_1; [L39] main____CPAchecker_TMP_1 = __VERIFIER_nondet_int() [L40] COND FALSE !(!(main____CPAchecker_TMP_1 == 0)) [L177] main__S = ((0.999 * main__S) + main__E0) - main__E1 [L44] main__E1 = main__E0 [L45] int main____CPAchecker_TMP_2; [L46] COND FALSE !(main__S >= -10000.0) [L166] main____CPAchecker_TMP_2 = 0 [L53] int __tmp_1; [L54] __tmp_1 = main____CPAchecker_TMP_2 [L55] int __VERIFIER_assert__cond; [L56] __VERIFIER_assert__cond = __tmp_1 [L57] COND TRUE __VERIFIER_assert__cond == 0 [L59] reach_error() - UnprovableResult [Line: 105]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 46 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, 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 00:15:11,775 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...