/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/float-benchs/rlim_invariant.c.p+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 16:44:52,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:44:52,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:44:52,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 16:44:52,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:44:52,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:44:52,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:44:52,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:44:52,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:44:52,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:44:52,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:44:52,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:44:52,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:44:52,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:44:52,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:44:52,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:44:52,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 16:44:52,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:44:52,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:44:52,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:44:52,921 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:44:52,936 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:44:52,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:44:52,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:44:52,938 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:44:52,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:44:52,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:44:52,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:44:52,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:44:52,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:44:52,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:44:52,939 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:44:52,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:44:52,939 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:44:52,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:44:52,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:44:52,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:44:52,940 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:44:52,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:44:52,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:44:52,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:44:52,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:44:52,941 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:44:52,941 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:44:53,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:44:53,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:44:53,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:44:53,193 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:44:53,194 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:44:53,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/rlim_invariant.c.p+cfa-reducer.c [2022-01-31 16:44:53,256 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d98192de4/846786dad7914bf7bff8db44cad3ae3b/FLAG0db2bd135 [2022-01-31 16:44:53,643 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:44:53,643 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/rlim_invariant.c.p+cfa-reducer.c [2022-01-31 16:44:53,649 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d98192de4/846786dad7914bf7bff8db44cad3ae3b/FLAG0db2bd135 [2022-01-31 16:44:53,658 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d98192de4/846786dad7914bf7bff8db44cad3ae3b [2022-01-31 16:44:53,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:44:53,661 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:44:53,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:44:53,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:44:53,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:44:53,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:44:53" (1/1) ... [2022-01-31 16:44:53,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40cd78c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:53, skipping insertion in model container [2022-01-31 16:44:53,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:44:53" (1/1) ... [2022-01-31 16:44:53,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:44:53,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:44:53,821 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/rlim_invariant.c.p+cfa-reducer.c[1464,1477] [2022-01-31 16:44:53,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:44:53,857 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:44:53,871 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/rlim_invariant.c.p+cfa-reducer.c[1464,1477] [2022-01-31 16:44:53,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:44:53,882 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:44:53,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:53 WrapperNode [2022-01-31 16:44:53,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:44:53,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:44:53,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:44:53,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:44:53,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:53" (1/1) ... [2022-01-31 16:44:53,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:53" (1/1) ... [2022-01-31 16:44:53,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:53" (1/1) ... [2022-01-31 16:44:53,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:53" (1/1) ... [2022-01-31 16:44:53,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:53" (1/1) ... [2022-01-31 16:44:53,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:53" (1/1) ... [2022-01-31 16:44:53,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:53" (1/1) ... [2022-01-31 16:44:53,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:44:53,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:44:53,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:44:53,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:44:53,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:53" (1/1) ... [2022-01-31 16:44:53,915 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:44:53,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:44:53,933 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 16:44:53,937 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 [2022-01-31 16:44:53,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:44:53,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:44:53,963 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:44:53,963 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-31 16:44:53,963 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:44:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:44:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:44:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:44:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:44:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2022-01-31 16:44:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-31 16:44:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 16:44:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:44:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:44:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:44:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:44:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:44:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:44:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:44:54,020 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:44:54,021 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:44:54,123 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:44:54,129 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:44:54,129 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-31 16:44:54,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:54 BoogieIcfgContainer [2022-01-31 16:44:54,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:44:54,131 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:44:54,131 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:44:54,132 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:44:54,135 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:54" (1/1) ... [2022-01-31 16:44:54,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:44:54 BasicIcfg [2022-01-31 16:44:54,151 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:44:54,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:44:54,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:44:54,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:44:54,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:44:53" (1/4) ... [2022-01-31 16:44:54,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba21001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:44:54, skipping insertion in model container [2022-01-31 16:44:54,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:53" (2/4) ... [2022-01-31 16:44:54,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba21001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:44:54, skipping insertion in model container [2022-01-31 16:44:54,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:54" (3/4) ... [2022-01-31 16:44:54,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba21001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:44:54, skipping insertion in model container [2022-01-31 16:44:54,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:44:54" (4/4) ... [2022-01-31 16:44:54,158 INFO L111 eAbstractionObserver]: Analyzing ICFG rlim_invariant.c.p+cfa-reducer.cJordan [2022-01-31 16:44:54,162 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:44:54,162 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:44:54,195 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:44:54,200 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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=FAST_UPR [2022-01-31 16:44:54,201 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:44:54,223 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 23 states have (on average 1.565217391304348) internal successors, (36), 24 states have internal predecessors, (36), 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) [2022-01-31 16:44:54,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-31 16:44:54,229 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:44:54,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:44:54,230 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:44:54,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:44:54,234 INFO L85 PathProgramCache]: Analyzing trace with hash 286742616, now seen corresponding path program 1 times [2022-01-31 16:44:54,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:44:54,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734299831] [2022-01-31 16:44:54,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:44:54,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:44:54,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:44:54,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:44:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:44:54,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:44:54,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:44:54,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734299831] [2022-01-31 16:44:54,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734299831] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:44:54,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:44:54,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:44:54,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059579850] [2022-01-31 16:44:54,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:44:54,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:44:54,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:44:54,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:44:54,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:44:54,528 INFO L87 Difference]: Start difference. First operand has 29 states, 23 states have (on average 1.565217391304348) internal successors, (36), 24 states have internal predecessors, (36), 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) Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:44:54,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:44:54,891 INFO L93 Difference]: Finished difference Result 110 states and 161 transitions. [2022-01-31 16:44:54,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-31 16:44:54,893 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-01-31 16:44:54,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:44:54,906 INFO L225 Difference]: With dead ends: 110 [2022-01-31 16:44:54,906 INFO L226 Difference]: Without dead ends: 96 [2022-01-31 16:44:54,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-31 16:44:54,915 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 213 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:44:54,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 80 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:44:54,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-01-31 16:44:54,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 27. [2022-01-31 16:44:54,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:44:54,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2022-01-31 16:44:54,946 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 20 [2022-01-31 16:44:54,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:44:54,947 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-01-31 16:44:54,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:44:54,947 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2022-01-31 16:44:54,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-31 16:44:54,948 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:44:54,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:44:54,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:44:54,949 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:44:54,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:44:54,950 INFO L85 PathProgramCache]: Analyzing trace with hash 287725719, now seen corresponding path program 1 times [2022-01-31 16:44:54,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:44:54,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297496662] [2022-01-31 16:44:54,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:44:54,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:44:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 16:44:54,964 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 16:44:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 16:44:54,989 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-31 16:44:54,989 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 16:44:54,991 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 16:44:54,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 16:44:54,995 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 16:44:54,997 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 16:44:55,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:44:55 BasicIcfg [2022-01-31 16:44:55,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 16:44:55,028 INFO L158 Benchmark]: Toolchain (without parser) took 1366.42ms. Allocated memory was 187.7MB in the beginning and 302.0MB in the end (delta: 114.3MB). Free memory was 131.6MB in the beginning and 217.2MB in the end (delta: -85.6MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-01-31 16:44:55,028 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 187.7MB. Free memory is still 147.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 16:44:55,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.25ms. Allocated memory was 187.7MB in the beginning and 302.0MB in the end (delta: 114.3MB). Free memory was 131.4MB in the beginning and 273.8MB in the end (delta: -142.5MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB. [2022-01-31 16:44:55,029 INFO L158 Benchmark]: Boogie Preprocessor took 24.19ms. Allocated memory is still 302.0MB. Free memory was 273.8MB in the beginning and 272.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-31 16:44:55,030 INFO L158 Benchmark]: RCFGBuilder took 222.46ms. Allocated memory is still 302.0MB. Free memory was 272.2MB in the beginning and 260.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-31 16:44:55,030 INFO L158 Benchmark]: IcfgTransformer took 19.79ms. Allocated memory is still 302.0MB. Free memory was 260.2MB in the beginning and 258.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-31 16:44:55,031 INFO L158 Benchmark]: TraceAbstraction took 874.77ms. Allocated memory is still 302.0MB. Free memory was 258.1MB in the beginning and 217.2MB in the end (delta: 40.9MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. [2022-01-31 16:44:55,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 187.7MB. Free memory is still 147.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 215.25ms. Allocated memory was 187.7MB in the beginning and 302.0MB in the end (delta: 114.3MB). Free memory was 131.4MB in the beginning and 273.8MB in the end (delta: -142.5MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.19ms. Allocated memory is still 302.0MB. Free memory was 273.8MB in the beginning and 272.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 222.46ms. Allocated memory is still 302.0MB. Free memory was 272.2MB in the beginning and 260.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * IcfgTransformer took 19.79ms. Allocated memory is still 302.0MB. Free memory was 260.2MB in the beginning and 258.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 874.77ms. Allocated memory is still 302.0MB. Free memory was 258.1MB in the beginning and 217.2MB in the end (delta: 40.9MB). Peak memory consumption was 40.9MB. 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: 66]: 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 48, overapproximation of someBinaryDOUBLEComparisonOperation at line 53, overapproximation of to_real at line 20, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L1] int __return_main; VAL [\old(__return_main)=53, __return_main=0] [L14] float main__X; [L15] float main__Y; [L16] float main__S; [L17] float main__R; [L18] float main__D; [L19] int main__i; [L20] main__Y = 0 [L21] main__i = 0 VAL [__return_main=0, main__i=0] [L23] COND TRUE main__i < 100000 [L25] main__X = __VERIFIER_nondet_float() [L26] main__D = __VERIFIER_nondet_float() [L27] int main____CPAchecker_TMP_0; VAL [__return_main=0, main__D=54, main__i=0, main__X=51] [L28] COND TRUE main__X >= -128.0 VAL [__return_main=0, main__D=54, main__i=0, main__X=51] [L30] COND TRUE main__X <= 128.0 [L32] main____CPAchecker_TMP_0 = 1 VAL [__return_main=0, main____CPAchecker_TMP_0=1, main__D=54, main__i=0, main__X=51] [L34] COND TRUE main____CPAchecker_TMP_0 != 0 [L36] int main____CPAchecker_TMP_1; VAL [__return_main=0, main____CPAchecker_TMP_0=1, main__D=54, main__i=0, main__X=51] [L37] COND TRUE main__D >= 0.0 VAL [__return_main=0, main____CPAchecker_TMP_0=1, main__D=54, main__i=0, main__X=51] [L39] COND TRUE main__D <= 16.0 [L41] main____CPAchecker_TMP_1 = 1 VAL [__return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=54, main__i=0, main__X=51] [L43] COND TRUE main____CPAchecker_TMP_1 != 0 [L45] main__S = main__Y [L46] main__Y = main__X [L47] main__R = main__X - main__S VAL [__return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=54, main__i=0, main__S=50, main__X=51, main__Y=51] [L48] COND TRUE main__R <= (-main__D) [L50] main__Y = main__S - main__D VAL [__return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=54, main__i=0, main__S=50, main__X=51] [L52] int main____CPAchecker_TMP_2; VAL [__return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=54, main__i=0, main__S=50, main__X=51] [L53] COND FALSE !(main__Y >= -129.0) VAL [__return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=54, main__i=0, main__S=50, main__X=51] [L79] main____CPAchecker_TMP_2 = 0 VAL [__return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=54, main__i=0, main__S=50, main__X=51] [L60] int __tmp_1; [L61] __tmp_1 = main____CPAchecker_TMP_2 [L62] int __VERIFIER_assert__cond; [L63] __VERIFIER_assert__cond = __tmp_1 VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=54, main__i=0, main__S=50, main__X=51] [L64] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=54, main__i=0, main__S=50, main__X=51] [L66] reach_error() VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=54, main__i=0, main__S=50, main__X=51] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 213 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 213 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 174 IncrementalHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 59 mSDtfsCounter, 174 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 69 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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 16:44:55,065 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...