/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-newlib/float_req_bl_1092c.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 16:53:03,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:53:03,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:53:03,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 16:53:03,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 16:53:03,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 16:53:03,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 16:53:03,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 16:53:03,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 16:53:03,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 16:53:03,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 16:53:03,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 16:53:03,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:53:03,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:53:03,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:53:03,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:53:03,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:53:03,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:53:03,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:53:03,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:53:03,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:53:03,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:53:03,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:53:03,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:53:03,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 16:53:03,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 16:53:03,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 16:53:03,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 16:53:03,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 16:53:03,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 16:53:03,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 16:53:03,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 16:53:03,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 16:53:03,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:53:03,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:53:03,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:53:03,881 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:53:03,903 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:53:03,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:53:03,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:53:03,904 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:53:03,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:53:03,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:53:03,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:53:03,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:53:03,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:53:03,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:53:03,905 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:53:03,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:53:03,906 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:53:03,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:53:03,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:53:03,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:53:03,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:53:03,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:53:03,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:53:03,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:53:03,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:53:03,907 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:53:03,907 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:53:04,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:53:04,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:53:04,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:53:04,091 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:53:04,094 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:53:04,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1092c.c [2022-01-31 16:53:04,150 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40d424216/bb3f1ac7895644e7a74d6499773dc4d5/FLAGc3cef5178 [2022-01-31 16:53:04,438 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:53:04,438 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1092c.c [2022-01-31 16:53:04,442 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40d424216/bb3f1ac7895644e7a74d6499773dc4d5/FLAGc3cef5178 [2022-01-31 16:53:04,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40d424216/bb3f1ac7895644e7a74d6499773dc4d5 [2022-01-31 16:53:04,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:53:04,883 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:53:04,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:53:04,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:53:04,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:53:04,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:53:04" (1/1) ... [2022-01-31 16:53:04,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@399ce851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:04, skipping insertion in model container [2022-01-31 16:53:04,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:53:04" (1/1) ... [2022-01-31 16:53:04,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:53:04,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:53:05,062 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-newlib/float_req_bl_1092c.c[1788,1801] [2022-01-31 16:53:05,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:53:05,070 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:53:05,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1092c.c[1788,1801] [2022-01-31 16:53:05,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:53:05,094 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:53:05,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:05 WrapperNode [2022-01-31 16:53:05,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:53:05,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:53:05,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:53:05,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:53:05,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:05" (1/1) ... [2022-01-31 16:53:05,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:05" (1/1) ... [2022-01-31 16:53:05,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:05" (1/1) ... [2022-01-31 16:53:05,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:05" (1/1) ... [2022-01-31 16:53:05,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:05" (1/1) ... [2022-01-31 16:53:05,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:05" (1/1) ... [2022-01-31 16:53:05,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:05" (1/1) ... [2022-01-31 16:53:05,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:53:05,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:53:05,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:53:05,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:53:05,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:05" (1/1) ... [2022-01-31 16:53:05,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:53:05,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:53:05,147 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 16:53:05,149 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 16:53:05,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:53:05,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:53:05,171 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:53:05,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2022-01-31 16:53:05,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2022-01-31 16:53:05,171 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:53:05,171 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:53:05,171 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:53:05,171 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:53:05,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:53:05,171 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2022-01-31 16:53:05,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 16:53:05,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 16:53:05,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:53:05,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:53:05,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:53:05,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 16:53:05,172 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2022-01-31 16:53:05,172 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:53:05,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:53:05,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:53:05,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:53:05,228 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:53:05,229 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:53:05,411 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:53:05,415 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:53:05,415 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-01-31 16:53:05,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:53:05 BoogieIcfgContainer [2022-01-31 16:53:05,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:53:05,417 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:53:05,417 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:53:05,418 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:53:05,420 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:53:05" (1/1) ... [2022-01-31 16:53:05,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:53:05 BasicIcfg [2022-01-31 16:53:05,448 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:53:05,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:53:05,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:53:05,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:53:05,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:53:04" (1/4) ... [2022-01-31 16:53:05,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb1692f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:53:05, skipping insertion in model container [2022-01-31 16:53:05,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:53:05" (2/4) ... [2022-01-31 16:53:05,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb1692f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:53:05, skipping insertion in model container [2022-01-31 16:53:05,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:53:05" (3/4) ... [2022-01-31 16:53:05,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb1692f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:53:05, skipping insertion in model container [2022-01-31 16:53:05,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:53:05" (4/4) ... [2022-01-31 16:53:05,458 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092c.cJordan [2022-01-31 16:53:05,461 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:53:05,461 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:53:05,489 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:53:05,494 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 16:53:05,494 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:53:05,504 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 32 states have (on average 1.53125) internal successors, (49), 33 states have internal predecessors, (49), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 16:53:05,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-31 16:53:05,515 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:53:05,516 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, 1, 1, 1, 1] [2022-01-31 16:53:05,516 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:53:05,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:53:05,520 INFO L85 PathProgramCache]: Analyzing trace with hash 426947105, now seen corresponding path program 1 times [2022-01-31 16:53:05,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:53:05,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221892285] [2022-01-31 16:53:05,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:53:05,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:53:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:53:05,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:53:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:53:05,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 16:53:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:53:05,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 16:53:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:53:05,683 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 16:53:05,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:53:05,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221892285] [2022-01-31 16:53:05,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221892285] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:53:05,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:53:05,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:53:05,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794667080] [2022-01-31 16:53:05,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:53:05,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:53:05,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:53:05,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:53:05,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:53:05,709 INFO L87 Difference]: Start difference. First operand has 42 states, 32 states have (on average 1.53125) internal successors, (49), 33 states have internal predecessors, (49), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-31 16:53:05,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:53:05,843 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2022-01-31 16:53:05,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:53:05,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2022-01-31 16:53:05,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:53:05,855 INFO L225 Difference]: With dead ends: 42 [2022-01-31 16:53:05,855 INFO L226 Difference]: Without dead ends: 38 [2022-01-31 16:53:05,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 16:53:05,861 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 41 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:53:05,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 47 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:53:05,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-01-31 16:53:05,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-01-31 16:53:05,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 30 states have (on average 1.3) internal successors, (39), 30 states have internal predecessors, (39), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 16:53:05,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2022-01-31 16:53:05,890 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 24 [2022-01-31 16:53:05,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:53:05,891 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2022-01-31 16:53:05,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-31 16:53:05,891 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2022-01-31 16:53:05,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-31 16:53:05,892 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:53:05,892 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, 1, 1, 1, 1, 1, 1] [2022-01-31 16:53:05,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:53:05,893 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:53:05,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:53:05,894 INFO L85 PathProgramCache]: Analyzing trace with hash -412963901, now seen corresponding path program 1 times [2022-01-31 16:53:05,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:53:05,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702969050] [2022-01-31 16:53:05,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:53:05,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:53:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 16:53:05,944 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 16:53:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 16:53:06,001 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-31 16:53:06,001 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 16:53:06,002 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 16:53:06,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 16:53:06,006 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 16:53:06,007 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 16:53:06,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:53:06 BasicIcfg [2022-01-31 16:53:06,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 16:53:06,034 INFO L158 Benchmark]: Toolchain (without parser) took 1150.75ms. Allocated memory is still 190.8MB. Free memory was 146.4MB in the beginning and 114.5MB in the end (delta: 32.0MB). Peak memory consumption was 31.7MB. Max. memory is 8.0GB. [2022-01-31 16:53:06,035 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory was 163.1MB in the beginning and 162.9MB in the end (delta: 150.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 16:53:06,037 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.49ms. Allocated memory is still 190.8MB. Free memory was 146.3MB in the beginning and 168.0MB in the end (delta: -21.7MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. [2022-01-31 16:53:06,038 INFO L158 Benchmark]: Boogie Preprocessor took 25.13ms. Allocated memory is still 190.8MB. Free memory was 168.0MB in the beginning and 165.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 16:53:06,039 INFO L158 Benchmark]: RCFGBuilder took 295.79ms. Allocated memory is still 190.8MB. Free memory was 165.9MB in the beginning and 153.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-31 16:53:06,040 INFO L158 Benchmark]: IcfgTransformer took 31.44ms. Allocated memory is still 190.8MB. Free memory was 153.3MB in the beginning and 151.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-31 16:53:06,040 INFO L158 Benchmark]: TraceAbstraction took 584.13ms. Allocated memory is still 190.8MB. Free memory was 151.2MB in the beginning and 114.5MB in the end (delta: 36.7MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2022-01-31 16:53:06,044 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 190.8MB. Free memory was 163.1MB in the beginning and 162.9MB in the end (delta: 150.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 207.49ms. Allocated memory is still 190.8MB. Free memory was 146.3MB in the beginning and 168.0MB in the end (delta: -21.7MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.13ms. Allocated memory is still 190.8MB. Free memory was 168.0MB in the beginning and 165.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 295.79ms. Allocated memory is still 190.8MB. Free memory was 165.9MB in the beginning and 153.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * IcfgTransformer took 31.44ms. Allocated memory is still 190.8MB. Free memory was 153.3MB in the beginning and 151.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 584.13ms. Allocated memory is still 190.8MB. Free memory was 151.2MB in the beginning and 114.5MB in the end (delta: 36.7MB). Peak memory consumption was 36.7MB. 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: 83]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 46, overapproximation of bitwiseAnd at line 66. Possible FailurePath: [L13] static const float huge_ceil = 1.0e30; VAL [\old(huge_ceil)=1000000000000000000000000000005, huge_ceil=1000000000000000000000000000000] [L78] float x = 1.0f / 0.0f; VAL [huge_ceil=1000000000000000000000000000000] [L79] CALL, EXPR ceil_float(x) VAL [\old(x)=1000000000000000000000000000003, huge_ceil=1000000000000000000000000000000] [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [\old(x)=1000000000000000000000000000003, huge_ceil=1000000000000000000000000000000, x=1000000000000000000000000000003] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [\old(x)=1000000000000000000000000000003, huge_ceil=1000000000000000000000000000000, i=-36028792723996673, i0=-2, j0=384, x=1000000000000000000000000000003] [L25] COND FALSE !(j0 < 23) VAL [\old(x)=1000000000000000000000000000003, huge_ceil=1000000000000000000000000000000, i=-36028792723996673, i0=-2, j0=384, x=1000000000000000000000000000003] [L45] COND TRUE !((ix) < 0x7f800000L) [L46] return x + x; VAL [\old(x)=1000000000000000000000000000003, huge_ceil=1000000000000000000000000000000, i=-36028792723996673, i0=-2, j0=384, x=1000000000000000000000000000003] [L79] RET, EXPR ceil_float(x) VAL [ceil_float(x)=1000000000000000000000000000002, huge_ceil=1000000000000000000000000000000, x=1000000000000000000000000000003] [L79] float res = ceil_float(x); [L82] CALL, EXPR isinf_float(res) VAL [\old(x)=1000000000000000000000000000002, huge_ceil=1000000000000000000000000000000] [L60] __int32_t ix; VAL [\old(x)=1000000000000000000000000000002, huge_ceil=1000000000000000000000000000000, x=1000000000000000000000000000002] [L62] ieee_float_shape_type gf_u; [L63] gf_u.value = (x) [L64] EXPR gf_u.word [L64] (ix) = gf_u.word [L66] ix &= 0x7fffffff [L67] return ((ix) == 0x7f800000L); VAL [\old(x)=1000000000000000000000000000002, \result=0, huge_ceil=1000000000000000000000000000000, ix=0, x=1000000000000000000000000000002] [L82] RET, EXPR isinf_float(res) VAL [huge_ceil=1000000000000000000000000000000, isinf_float(res)=0, res=1000000000000000000000000000002, x=1000000000000000000000000000003] [L82] COND TRUE !isinf_float(res) [L83] reach_error() VAL [huge_ceil=1000000000000000000000000000000, res=1000000000000000000000000000002, x=1000000000000000000000000000003] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 45 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 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 16:53:06,073 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...