/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/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float8.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 11:47:57,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 11:47:57,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 11:47:57,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 11:47:57,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 11:47:57,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 11:47:57,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 11:47:57,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 11:47:57,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 11:47:57,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 11:47:57,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 11:47:57,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 11:47:57,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 11:47:57,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 11:47:57,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 11:47:57,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 11:47:57,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 11:47:57,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 11:47:57,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 11:47:57,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 11:47:57,583 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 11:47:57,597 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 11:47:57,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 11:47:57,597 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 11:47:57,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 11:47:57,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 11:47:57,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 11:47:57,598 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 11:47:57,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 11:47:57,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 11:47:57,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 11:47:57,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 11:47:57,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 11:47:57,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 11:47:57,599 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 11:47:57,599 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 11:47:57,600 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 11:47:57,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 11:47:57,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 11:47:57,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 11:47:57,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 11:47:57,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 11:47:57,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 11:47:57,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 11:47:57,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 11:47:57,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 11:47:57,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 11:47:57,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 11:47:57,601 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 11:47:57,601 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 11:47:57,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 11:47:57,601 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 11:47:57,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 11:47:57,602 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 11:47:57,602 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 11:47:57,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 11:47:57,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 11:47:57,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 11:47:57,787 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 11:47:57,798 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 11:47:57,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float8.i [2022-01-10 11:47:57,848 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eff7e5371/a2316c5bfa2d49b881b324e375d7fb7c/FLAGcdac7d487 [2022-01-10 11:47:58,351 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 11:47:58,352 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float8.i [2022-01-10 11:47:58,365 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eff7e5371/a2316c5bfa2d49b881b324e375d7fb7c/FLAGcdac7d487 [2022-01-10 11:47:58,869 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eff7e5371/a2316c5bfa2d49b881b324e375d7fb7c [2022-01-10 11:47:58,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 11:47:58,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 11:47:58,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 11:47:58,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 11:47:58,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 11:47:58,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:47:58" (1/1) ... [2022-01-10 11:47:58,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aac4e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:58, skipping insertion in model container [2022-01-10 11:47:58,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:47:58" (1/1) ... [2022-01-10 11:47:58,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 11:47:58,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 11:47:59,390 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float8.i[40985,40998] [2022-01-10 11:47:59,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 11:47:59,400 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 11:47:59,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float8.i[40985,40998] [2022-01-10 11:47:59,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 11:47:59,483 INFO L208 MainTranslator]: Completed translation [2022-01-10 11:47:59,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:59 WrapperNode [2022-01-10 11:47:59,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 11:47:59,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 11:47:59,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 11:47:59,485 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 11:47:59,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:59" (1/1) ... [2022-01-10 11:47:59,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:59" (1/1) ... [2022-01-10 11:47:59,521 INFO L137 Inliner]: procedures = 449, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 24 [2022-01-10 11:47:59,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 11:47:59,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 11:47:59,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 11:47:59,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 11:47:59,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:59" (1/1) ... [2022-01-10 11:47:59,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:59" (1/1) ... [2022-01-10 11:47:59,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:59" (1/1) ... [2022-01-10 11:47:59,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:59" (1/1) ... [2022-01-10 11:47:59,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:59" (1/1) ... [2022-01-10 11:47:59,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:59" (1/1) ... [2022-01-10 11:47:59,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:59" (1/1) ... [2022-01-10 11:47:59,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 11:47:59,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 11:47:59,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 11:47:59,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 11:47:59,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:59" (1/1) ... [2022-01-10 11:47:59,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 11:47:59,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 11:47:59,557 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) [2022-01-10 11:47:59,563 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 [2022-01-10 11:47:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 11:47:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 11:47:59,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 11:47:59,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 11:47:59,628 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 11:47:59,629 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 11:47:59,692 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 11:47:59,695 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 11:47:59,696 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 11:47:59,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:47:59 BoogieIcfgContainer [2022-01-10 11:47:59,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 11:47:59,697 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 11:47:59,697 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 11:47:59,698 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 11:47:59,700 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:47:59" (1/1) ... [2022-01-10 11:47:59,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:47:59 BasicIcfg [2022-01-10 11:47:59,730 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 11:47:59,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 11:47:59,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 11:47:59,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 11:47:59,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:47:58" (1/4) ... [2022-01-10 11:47:59,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43579812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:47:59, skipping insertion in model container [2022-01-10 11:47:59,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:59" (2/4) ... [2022-01-10 11:47:59,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43579812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:47:59, skipping insertion in model container [2022-01-10 11:47:59,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:47:59" (3/4) ... [2022-01-10 11:47:59,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43579812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:47:59, skipping insertion in model container [2022-01-10 11:47:59,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:47:59" (4/4) ... [2022-01-10 11:47:59,735 INFO L111 eAbstractionObserver]: Analyzing ICFG float8.iTransformedIcfg [2022-01-10 11:47:59,738 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 11:47:59,738 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 11:47:59,765 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 11:47:59,769 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 [2022-01-10 11:47:59,769 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 11:47:59,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 11:47:59,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 11:47:59,779 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:47:59,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 11:47:59,780 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 11:47:59,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:47:59,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1480159910, now seen corresponding path program 1 times [2022-01-10 11:47:59,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:47:59,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127860690] [2022-01-10 11:47:59,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:47:59,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:47:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:47:59,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 11:47:59,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:47:59,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127860690] [2022-01-10 11:47:59,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127860690] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 11:47:59,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 11:47:59,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 11:47:59,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498648322] [2022-01-10 11:47:59,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 11:47:59,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 11:47:59,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:47:59,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 11:47:59,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 11:47:59,916 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 11:47:59,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 11:47:59,922 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-01-10 11:47:59,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 11:47:59,924 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-01-10 11:47:59,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 11:47:59,927 INFO L225 Difference]: With dead ends: 17 [2022-01-10 11:47:59,928 INFO L226 Difference]: Without dead ends: 7 [2022-01-10 11:47:59,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 11:47:59,931 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 11:47:59,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 11:47:59,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-01-10 11:47:59,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-01-10 11:47:59,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 11:47:59,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2022-01-10 11:47:59,947 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2022-01-10 11:47:59,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 11:47:59,947 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2022-01-10 11:47:59,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 11:47:59,947 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2022-01-10 11:47:59,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 11:47:59,947 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:47:59,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 11:47:59,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 11:47:59,948 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 11:47:59,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:47:59,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1480189701, now seen corresponding path program 1 times [2022-01-10 11:47:59,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:47:59,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801199676] [2022-01-10 11:47:59,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:47:59,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:47:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 11:47:59,969 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 11:47:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 11:47:59,993 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 11:47:59,994 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 11:47:59,995 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 11:47:59,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 11:47:59,998 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 11:47:59,999 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 11:48:00,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:48:00 BasicIcfg [2022-01-10 11:48:00,017 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 11:48:00,017 INFO L158 Benchmark]: Toolchain (without parser) took 1142.39ms. Allocated memory is still 185.6MB. Free memory was 128.0MB in the beginning and 82.8MB in the end (delta: 45.2MB). Peak memory consumption was 44.4MB. Max. memory is 8.0GB. [2022-01-10 11:48:00,018 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 185.6MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 11:48:00,020 INFO L158 Benchmark]: CACSL2BoogieTranslator took 596.00ms. Allocated memory is still 185.6MB. Free memory was 127.9MB in the beginning and 122.7MB in the end (delta: 5.2MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. [2022-01-10 11:48:00,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.27ms. Allocated memory is still 185.6MB. Free memory was 122.7MB in the beginning and 120.0MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 11:48:00,020 INFO L158 Benchmark]: Boogie Preprocessor took 10.72ms. Allocated memory is still 185.6MB. Free memory was 120.0MB in the beginning and 119.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 11:48:00,021 INFO L158 Benchmark]: RCFGBuilder took 164.34ms. Allocated memory is still 185.6MB. Free memory was 119.0MB in the beginning and 109.5MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-10 11:48:00,022 INFO L158 Benchmark]: IcfgTransformer took 32.66ms. Allocated memory is still 185.6MB. Free memory was 109.5MB in the beginning and 107.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 11:48:00,022 INFO L158 Benchmark]: TraceAbstraction took 285.69ms. Allocated memory is still 185.6MB. Free memory was 106.9MB in the beginning and 82.8MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-01-10 11:48:00,026 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 185.6MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 596.00ms. Allocated memory is still 185.6MB. Free memory was 127.9MB in the beginning and 122.7MB in the end (delta: 5.2MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.27ms. Allocated memory is still 185.6MB. Free memory was 122.7MB in the beginning and 120.0MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.72ms. Allocated memory is still 185.6MB. Free memory was 120.0MB in the beginning and 119.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 164.34ms. Allocated memory is still 185.6MB. Free memory was 119.0MB in the beginning and 109.5MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 32.66ms. Allocated memory is still 185.6MB. Free memory was 109.5MB in the beginning and 107.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 285.69ms. Allocated memory is still 185.6MB. Free memory was 106.9MB in the beginning and 82.8MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. 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: 973]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of fp.eq at line 973, overapproximation of fp.isSubnormal at line 970, overapproximation of fp.add at line 972, overapproximation of fp.isZero at line 970, overapproximation of fp.isNormal at line 970. Possible FailurePath: [L968] double d, q, r; [L969] q = __VERIFIER_nondet_double() [L970] CALL assume_abort_if_not((sizeof (q) == sizeof (float) ? __finitef (q) : sizeof (q) == sizeof (double) ? __finite (q) : __finitel (q))) [L3] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L970] RET assume_abort_if_not((sizeof (q) == sizeof (float) ? __finitef (q) : sizeof (q) == sizeof (double) ? __finite (q) : __finitel (q))) [L971] d=q [L972] r=d+0 [L973] COND TRUE !(r==d) [L973] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 9 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 [2022-01-10 11:48:00,056 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...